Analysis
- max time kernel
95s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - submitted
22/01/2025, 14:37
General
- Target obs.dll
- Size 640KB
- Sample250122-ry8lessjdk
- SHA256 8d8babad52f2ec520ca4d1d4eb1c7a7a8ca85b919d4d52dd519f7b1f67c42001
Malware Config
Extracted
-
legion
-
url_paths
front.php
back.php
-
user_agent
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; Touch; rv:11.0) like Gecko
Signatures
- Legion family
- Legion, RobotDropper, Satacom
Legion aka 'RobotDropper' or 'Satacom' is a malware downloader written in C++ and Legion stealer is written C#.
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\obs.dll,#11⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe explorer.exe2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/544-2-0x0000000000010000-0x0000000000039000-memory.dmp
memory/544-3-0x0000000000010000-0x0000000000039000-memory.dmp
memory/544-4-0x0000000000010000-0x0000000000039000-memory.dmp
memory/544-5-0x0000000000010000-0x0000000000039000-memory.dmp
memory/544-6-0x0000000000010000-0x0000000000039000-memory.dmp
memory/4988-0-0x000001E071410000-0x000001E071437000-memory.dmp
memory/4988-1-0x000001E071410000-0x000001E071437000-memory.dmp