Linux malware strengthens links between Lazarus and the 3CX supply‑chain attack

2023-04-20 • ESET •

https://www.welivesecurity.com/2023/04/20/linux-malware-strengthens-links-lazarus-3cx-supply-chain-attack/

ESET links a Lazarus Operation DreamJob campaign against Linux users to broader evidence connecting the group with the 3CX supply-chain compromise. The Linux intrusion chain used a ZIP archive containing a fake HSBC job offer lure, where a deceptive Unicode filename made a native Go ELF appear like a PDF while executing OdicLoader. OdicLoader opened a decoy PDF, downloaded the SimplexTea Linux backdoor from OpenDrive, stored it under ~/.config/guiconfigd, and modified ~/.bash_profile for persistence. The finding matters because it shows Lazarus extending DreamJob tooling to Linux while targeting all major desktop platforms and provides additional technical support for the suspected Lazarus role in the 3CX incident.

Indicators of Compromise

Type Value First Seen Last Seen
HASH cc307cfb401d1ae616445e78b610ab7… 2023-04-20 2025-12-17
IPv4 23.254.211.230 2023-04-20 2025-12-17
IPv4 172.93.201.88 2023-04-20 2025-11-09
HASH 5e40d106977017b1ed235419b1e59ff… 2021-02-17 2025-09-01
HASH 492a643bd1efdaca4ca125ade1b606e… 2023-04-20 2024-12-27
HASH 0ca1723afe261cd85b05c9ef424fc50… 2023-04-20 2023-05-09
HASH f638e5a20114019ad066dd0e856f97f… 2023-04-20 2023-05-09
IPv4 38.108.185.79 2023-04-20 2023-05-09
IPv4 38.108.185.115 2023-04-20 2023-05-09
DOMAIN journalide.org 2023-03-29 2023-05-09
HASH 480b8c9df70396f44cdca00fd860fdf… 2023-04-20 2023-05-02
HASH eebb01932de0b5605dd460cc82844d8… 2023-04-20 2023-05-02
HASH cedb9cdbad254f60cfb215b9bff84fb9 2023-04-20 2023-05-02
HASH ea31e626368b923419e8966747ca334… 2023-04-20 2023-05-02
HASH cc36b610705d96dd8a82faf8bce1e1d… 2023-04-20 2023-05-02
HASH aa4e398b3bd8645016d8090ffc77d15… 2023-03-30 2023-05-02
HASH cad1120d91b812acafef7175f949dd1… 2023-03-29 2023-05-02
HASH 9352625b3e6a3c998e328e11ad43efb… 2022-12-01 2023-05-02
HASH 4257bb11570ed15b8a15aa3fc051a58… 2021-12-02 2023-05-02
HASH 5a07b09eea34d7faa9c37e2806a556c… 2017-12-21 2023-05-02
HASH e2ecec43da974db02f624ecadc94baf… 2014-12-04 2023-05-02
URL https://journalide.org/djour.php 2023-04-20 2023-04-24
YARA RichHeaders_Lazarus_NukeSped_Ic… 2023-04-20 2023-04-20
URL https://od.lk/d/NTJfMzg4MDE1NzJ… 2023-04-20 2023-04-20

Related Reports

2023-04-20 • 32% Match
#YARA #SupplyChain #3CXDesktopApp #SmoothOperator #UNC4736 #X_Trader #UNC4469 #UNC3782 #T1082 #T1140 #T1070.004 #T1071.001 #T1195.002 #T1112 #T1083 #T1497 #T1036 #T1027 #T1071 #T1195 #T1497.001 #T1105 #T1055 #T1620 #T1574.002 #T1622 #T1190 #T1588 #T1574 #T1573.002 #T1614 #T1573 #T1608 #T1070 #T1614.001 #T1071.004 #T1012 #T1588.004 #T1565.001 #T1036.001 #T1070.001 #T1608.003 #T1565
Shares tags: YARA, 3CXDesktopApp, SmoothOperator • Shares 1 IOC • Published within a week
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