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Threats / Actors / APT39
G0087 Nation-stateour call,
not MITRE’s
ATT&CK Group

APT39

How MITRE ATT&CK characterizes this group1: APT39 is one of several names for cyber espionage activity conducted by the Iranian Ministry of Intelligence and Security (MOIS) through the front company Rana Intelligence Computing since at least 2014. APT39 has primarily targeted the travel, hospitality, academic, and telecommunications industries in Iran and across Asia, Africa, Europe, and North America to track individuals and entities considered to be a threat by the MOIS.

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

Also tracked as: ITG07 Chafer Remix Kitten — 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.

53
Techniques
ATT&CK count1
11
Named tools / malware
ATT&CK count2
0
Attributed campaigns
ATT&CK count1
12
Tactics spanned
ATT&CK count1
coverage gap
Activity bounds
no attributed campaign
01

Known for

— signature moves, each sourced to ATT&CK
ArsenalNamed tooling. ATT&CK attributes 11 tools/malware to this group, including Mimikatz, Windows Credential Editor, pwdump, PsExec.56
ReachFurthest outcome. This actor's cited tradecraft reaches as far as outcome 4 — Data at risk — exfiltration. (editorial mapping over ATT&CK tactics).
02

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

Reach: this actor’s cited techniques light columns 1·2·3·4 — furthest is 4 · Data at risk. (furthest-position idiom, reused from the landing map).

A dot = this technique advances that outcomeColumn 5 (Lights out) is empty — Compare: a ransomware or wiper actor lights column 5.
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
03

Arsenal

— named tools & malware ATT&CK attributes to this group
MimikatzS0002 · Tool
Windows Credential EditorS0005 · Tool
pwdumpS0006 · Tool
PsExecS0029 · Tool
ASPXSpyS0073 · Malware
ftpS0095 · Tool
RemexiS0375 · Malware
CadelspyS0454 · Malware
+3 moreCoverage

ATT&CK attributes 11 tools/malware to G0087 in total; the full list is on the group page.

04

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 G0087 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.
05

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.
06

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • Group identity, aliases, description — MITRE ATT&CK group page
  • 53 techniques — ATT&CK technique pages (linked per row)
  • 11 software (arsenal) — ATT&CK software pages
  • 7 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): Lights out — consistent with this actor's nature, stated as a finding.