Threats / Actors / Contagious Interview

G1052 Nation-stateour call,
not MITRE’s ATT&CK Group

Contagious Interview

How MITRE ATT&CK characterizes this group¹: Contagious Interview is a North Korea–aligned threat group active since 2023. The group conducts both cyberespionage and financially motivated operations, including the theft of cryptocurrency and user credentials. Contagious Interview targets Windows, Linux, and macOS systems, with a particular focus on individuals engaged in software development and cryptocurrency-related activities.

Origin / sponsor: not established from a curated public advisory — see Coverage & confidence. Not asserted here.

Also tracked as: DeceptiveDevelopment Gwisin Gang Tenacious Pungsan DEV#POPPER PurpleBravo TAG-121 — ATT&CK group page¹

Read this as · tier is our editorial call, not MITRE’s

Read as a state-directed operator, not a smash-and-grab.

A nation-state classification means patience, tradecraft, and an intelligence objective. When this name attaches to a vulnerability, the question shifts from “will someone exploit it” to “has a well-resourced service already built it into an operation.” All tradecraft below is sourced to MITRE ATT&CK.

Techniques

ATT&CK count¹

Named tools / malware

ATT&CK count²

Attributed campaigns

ATT&CK count¹

Tactics spanned

ATT&CK count¹

coverage gap

Activity bounds

no attributed campaign

Known for

— signature moves, each sourced to ATT&CK

ArsenalNamed tooling. ATT&CK attributes 4 tools/malware to this group, including InvisibleFerret, BeaverTail, XORIndex Loader, HexEval Loader.⁵⁵

ReachFurthest outcome. This actor's cited tradecraft reaches as far as outcome 5 — Lights out — disruption & extortion. (editorial mapping over ATT&CK tactics).

Tradecraft heatmap

— ATT&CK techniques mapped onto the five attacker-outcome narratives

Each row is a documented technique (MITRE ATT&CK). Each column is one of the five attacker-outcome narratives a defender funds against. A filled cell means this technique’s own ATT&CK tactic defensibly advances that outcome. The mapping of technique→outcome is our editorial alignment over ATT&CK's tactic data, not a separately-sourced MITRE edge. A filled cell means one of the technique's own ATT&CK tactics defensibly advances that outcome; enabler tactics (C2, Defense Evasion, Discovery) heat no column.

1Front door

2Keys to the kingdom

3Lateral reach

4Data at risk

5Lights out

T1027.010 Command ObfuscationDefense Evasion

T1027.013 Encrypted/Encoded FileDefense Evasion

T1036 MasqueradingDefense Evasion

T1041 Exfiltration Over C2 ChannelExfiltration

●

T1048.003 Exfiltration Over Unencrypted Non-C2 ProtocolExfiltration

●

T1059.003 Windows Command ShellExecution

●

T1059.004 Unix ShellExecution

●

T1059.005 Visual BasicExecution

●

T1059.006 PythonExecution

●

T1059.007 JavaScriptExecution

●

T1070.004 File DeletionDefense Evasion

T1071.003 Mail ProtocolsCommand & Control

T1082 System Information DiscoveryDiscovery

T1083 File and Directory DiscoveryDiscovery

T1090 ProxyCommand & Control

T1204.001 Malicious LinkExecution

●

T1204.002 Malicious FileExecution

●

T1204.004 Malicious Copy and PasteExecution

●

T1204.005 Malicious LibraryExecution

●

T1219.002 Remote Desktop SoftwareCommand & Control

T1480 Execution GuardrailsDefense Evasion

T1497 Virtualization/Sandbox EvasionDefense Evasion / Discovery

T1543.001 Launch AgentPersistence / Privilege Escalation

●

T1546.004 Unix Shell Configuration ModificationPersistence / Privilege Escalation

●

T1547.001 Registry Run Keys / Startup FolderPersistence / Privilege Escalation

●

T1547.013 XDG Autostart EntriesPersistence / Privilege Escalation

●

T1555.001 KeychainCredential Access

●

T1562.001 Disable or Modify ToolsDefense Evasion

T1566.003 Spearphishing via ServiceInitial Access

●

T1567 Exfiltration Over Web ServiceExfiltration

●

T1567.002 Exfiltration to Cloud StorageExfiltration

●

T1571 Non-Standard PortCommand & Control

T1573.001 Symmetric CryptographyCommand & Control

T1583 Acquire InfrastructureResource Development

T1583.001 DomainsResource Development

T1583.003 Virtual Private ServerResource Development

T1583.006 Web ServicesResource Development

T1585 Establish AccountsResource Development

T1585.001 Social Media AccountsResource Development

T1585.002 Email AccountsResource Development

T1587 Develop CapabilitiesResource Development

T1587.001 MalwareResource Development

T1588.002 ToolResource Development

T1588.007 Artificial IntelligenceResource Development

T1589 Gather Victim Identity InformationReconnaissance

T1593 Search Open Websites/DomainsReconnaissance

T1593.001 Social MediaReconnaissance

T1593.003 Code RepositoriesReconnaissance

T1608.001 Upload MalwareResource Development

T1656 ImpersonationDefense Evasion

T1657 Financial TheftImpact

●

T1681 Search Threat Vendor DataReconnaissance

Reach: this actor’s cited techniques light columns 1·2·4·5 — furthest is 5 · Lights out. (furthest-position idiom, reused from the landing map).

A dot = this technique advances that outcomeColumn 3 (Lateral reach) is empty — Compare: a hands-on-keyboard intruder lights column 3.

Editorial: the technique→outcome alignment is our call over ATT&CK’s tactic data, not a separately-sourced MITRE edge — same basis the landing page declares. Enabler tactics (C2, defense evasion, discovery) heat no column.¹

Arsenal

— named tools & malware ATT&CK attributes to this group

InvisibleFerretS1245 · Malware

ATT&CK S1245 ↗

BeaverTailS1246 · Malware

ATT&CK S1246 ↗

XORIndex LoaderS1248 · Malware

ATT&CK S1248 ↗

HexEval LoaderS1249 · Malware

ATT&CK S1249 ↗

Campaign highlights

— attributed operations in the ATT&CK record

No attributed campaigns — coverage gap

Stated, not hidden

ATT&CK lists no first-class campaign object for G1052 at this snapshot. Public reporting may tie this actor to operations; those enter only with a named advisory under the same cite-or-die rule.

Latest activity

— with explicit confidence, and what we cannot yet claim

ATT&CK
snapshot

The most recent cited activity in this card is the ATT&CK record itself. We do not paste a “last seen this week” line we cannot source. Recency from secondary reporting appears here only when attached to a named advisory.

ATT&CK snapshot, compiled 2026-06-22Coverage gap — live “currently active” status not asserted

CVE ↔ actor bridge: no confirmed CVE link is established for this group. ATT&CK provides no first-class group→CVE relationship, so this card does not claim specific CVEs as “exploited by this actor” unless a named advisory says so. Absence of a CVE here is a coverage gap, never a clean bill — confirmed links surface as a cited, linked list as the advisory bridge grows.

Coverage & confidence

— what we know, and what we don’t

Established (cited)

Group identity, aliases, description — MITRE ATT&CK group page

52 techniques — ATT&CK technique pages (linked per row)

4 software (arsenal) — ATT&CK software pages

11 third-party research citations — ATT&CK external references

Coverage gaps — stated, not hidden

Origin/sponsor not established from a curated public advisory. ATT&CK prose may imply attribution but is not asserted here — absence of a curated source is a coverage finding, not a clean bill of attribution.

Threat tier is OUR editorial classification (rule-based), not a MITRE field — labeled as such.

Technique → outcome heatmap is editorial alignment over ATT&CK tactic data, not a separately-sourced MITRE edge.

Activity bounds are a floor from attributed-campaign dates only — flagged approx., not a true active-since range.

ATT&CK has no first-class group→CVE relationship; this card asserts no specific CVE without a named advisory.

No attributed ATT&CK campaign object — activity bounds cannot be established.

Empty heatmap column(s): Lateral reach — consistent with this actor's nature, stated as a finding.