
OilRig
Also known as:COBALT GYPSY · IRN2 · APT34 · Helix Kitten · Evasive Serpens · Hazel Sandstorm · EUROPIUM · ITG13 · Earth Simnavaz · Crambus · TA452
Overview
OilRig is a suspected Iranian threat group that has targeted Middle Eastern and international victims since at least 2014. The group has targeted a variety of sectors, including financial, government, energy, chemical, and telecommunications. It appears the group carries out supply chain attacks, leveraging the trust relationship between organizations to attack their primary targets. The group works on behalf of the Iranian government based on infrastructure details that contain references to Iran, use of Iranian infrastructure, and targeting that aligns with nation-state interests.
Naming & attribution
OilRig is tracked under 12 names across the industry. It uses 76 documented ATT&CK techniques — more than 94% of the 174 groups tracked here. Activity attributed since at least 2014.
| Name | First reported by |
|---|---|
| COBALT GYPSY | Secureworks |
| IRN2 | Meyers, A |
| APT34 | Lee, B., Falcone, R |
| Helix Kitten | Lee, B., Falcone, R |
| Evasive Serpens | Unit42 |
| Hazel Sandstorm | Microsoft |
| EUROPIUM | Microsoft |
| ITG13 | Kessem, L |
| Earth Simnavaz | Fahmy, M. et al |
| Crambus | Symantec Threat Hunter Team |
| TA452 | Proofpoint |
| OilRig | Falcone, R. |
Distinctive techniques
Techniques this group uses that are rare across the other 173 tracked groups — these carry more signal than the near-universal ones.
T1137.004Outlook Home Page — used by 1 of 174 groupsT1195Supply Chain Compromise — used by 3 of 174 groupsT1201Password Policy Discovery — used by 3 of 174 groupsT1556.002Password Filter DLL — used by 3 of 174 groups
Closest groups by technique overlap
Computed from shared ATT&CK techniques. Overlap is not attribution — distinct actors converge on the same tradecraft — but a high share is a useful pivot.
- Threat Group-3390 China — 32 shared techniques (32% overlap)
- FIN7 — 33 shared techniques (30% overlap)
- APT39 Iran — 30 shared techniques (30% overlap)
- Mustang Panda China — 35 shared techniques (28% overlap)
- APT32 Vietnam — 34 shared techniques (28% overlap)
- Volt Typhoon China — 34 shared techniques (28% overlap)
Targets
Chemical · Civil society · Defense · Education · Energy · Engineering · Finance · Government · Other · Private sector · Technology · Telecommunications
Regions
Canada · China · France · Germany · India · Iraq · Israel · Kuwait · Lebanon · Mexico · Middle East · Pakistan · Qatar · Saudi Arabia · South Korea · Turkey · United Kingdom · United States
Capabilities
- Supply-chain compromise — ATT&CK T1195
- Destructive / data-wiping operations — software: ZeroCleare
- Exploitation of public-facing / client applications — ATT&CK T1203
- Custom malware/implant development — ATT&CK: 18 attributed custom malware families
- Documented tooling: Watering holes, 64-bit malware, covert C2 via IPv6 DNS, ISMDOOR — MISP galaxy (meta.capabilities)
TTPs — 76 techniques across 13 tactics
Resource Development
T1583.001DomainsT1586.002Email AccountsT1587.001MalwareT1588.002ToolT1588.003Code Signing CertificatesT1608.001Upload Malware
Initial Access
T1195Supply Chain CompromiseT1566.001Spearphishing AttachmentT1566.002Spearphishing LinkT1566.003Spearphishing via Service
Execution
T1047Windows Management InstrumentationT1053.005Scheduled TaskT1059Command and Scripting InterpreterT1059.001PowerShellT1059.003Windows Command ShellT1059.005Visual BasicT1203Exploitation for Client ExecutionT1204.001Malicious LinkT1204.002Malicious File
Persistence
T1133External Remote ServicesT1137.004Outlook Home PageT1505.003Web ShellT1543.003Windows Service
Privilege Escalation
Stealth
T1027.005Indicator Removal from ToolsT1027.013Encrypted/Encoded FileT1036MasqueradingT1036.005Match Legitimate Resource Name or LocationT1070.004File DeletionT1078Valid AccountsT1078.002Domain AccountsT1140Deobfuscate/Decode Files or InformationT1218.001Compiled HTML FileT1497.001System Checks
Defense Impairment
T1112Modify RegistryT1553.002Code SigningT1556.002Password Filter DLLT1686.003Windows Host Firewall
Credential Access
T1003.001LSASS MemoryT1003.004LSA SecretsT1003.005Cached Domain CredentialsT1110Brute ForceT1552.001Credentials In FilesT1555Credentials from Password StoresT1555.003Credentials from Web BrowsersT1555.004Windows Credential Manager
Discovery
T1007System Service DiscoveryT1012Query RegistryT1016System Network Configuration DiscoveryT1033System Owner/User DiscoveryT1046Network Service DiscoveryT1049System Network Connections DiscoveryT1057Process DiscoveryT1069.001Local GroupsT1069.002Domain GroupsT1082System Information DiscoveryT1087.001Local AccountT1087.002Domain AccountT1120Peripheral Device DiscoveryT1201Password Policy Discovery
Lateral Movement
T1021.001Remote Desktop ProtocolT1021.004SSH
Collection
T1005Data from Local SystemT1025Data from Removable MediaT1056.001KeyloggingT1113Screen CaptureT1115Clipboard DataT1119Automated Collection
Command and Control
T1008Fallback ChannelsT1071.001Web ProtocolsT1071.004DNST1105Ingress Tool TransferT1219Remote Access ToolsT1572Protocol TunnelingT1573.002Asymmetric Cryptography
Exfiltration
Tools & malware (30)
ISMInjector · ODAgent · RDAT · Systeminfo · QUADAGENT · OopsIE · ngrok · Tasklist · Net · certutil · ZeroCleare · Reg · POWRUNER · netstat · Solar · ipconfig · LaZagne · BONDUPDATER · SideTwist · Helminth · Mango · OilBooster · SampleCheck5000 · PsExec · SEASHARPEE · Mimikatz · PowerExchange · OilCheck · RGDoor · ftp
Reporting (3)
- Earth Simnavaz (aka APT34) Levies Advanced Cyberattacks Against Middle East — Fahmy, M. et al
- Crambus: New Campaign Targets Middle Eastern Government — Symantec Threat Hunter Team
- How Microsoft names threat actors — Microsoft