Analysis
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max time kernel
118s -
max time network
115s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2024 10:58
Static task
static1
Behavioral task
behavioral1
Sample
3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe
Resource
win10v2004-20241007-en
General
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Target
3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe
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Size
105KB
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MD5
e4613537d468e369e3ba9918e8c85caa
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SHA1
758576f401b5ef0826aa0112edf6ae25460e98d1
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SHA256
3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e
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SHA512
5fbe9fcc20d45af8978cbd891a6d96ff3db547f0446f46e89e626ae6d2f12f2a746638a9e1e1fc46905dba1b7fa2c7b77d1deaec75aa8aabe58f8be4e97f3518
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SSDEEP
1536:anRw3vN6mG1y8nRB8aX3DVwd4sSH2/fTMLkKFTeUCD+xFOOf4EVRMLfsU9:aCv48aHDCz/LUkwedD+MLfsg
Malware Config
Extracted
sakula
www.polarroute.com
Signatures
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Sakula family
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Sakula payload 6 IoCs
resource yara_rule behavioral2/memory/1772-0-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula behavioral2/memory/1772-6-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula behavioral2/memory/3152-8-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula behavioral2/memory/3152-9-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula behavioral2/memory/1772-14-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula behavioral2/memory/3152-19-0x0000000000400000-0x0000000000438000-memory.dmp family_sakula -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe -
Executes dropped EXE 1 IoCs
pid Process 3152 MediaCenter.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MediaCenter.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1716 cmd.exe 1628 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1628 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1772 wrote to memory of 3152 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 88 PID 1772 wrote to memory of 3152 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 88 PID 1772 wrote to memory of 3152 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 88 PID 1772 wrote to memory of 1716 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 98 PID 1772 wrote to memory of 1716 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 98 PID 1772 wrote to memory of 1716 1772 3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe 98 PID 1716 wrote to memory of 1628 1716 cmd.exe 100 PID 1716 wrote to memory of 1628 1716 cmd.exe 100 PID 1716 wrote to memory of 1628 1716 cmd.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe"C:\Users\Admin\AppData\Local\Temp\3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3152
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\3f1f939543ecb3feefcfb57044ed1cff6131f0f409b0de93720d2721f2903a3e.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1628
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
105KB
MD549cdc449cabc2165358618c23894774e
SHA1d60fdded2106889d4a1032fa38ca659452de9c54
SHA256bdcccaeb9e978dc110ac60e4762220f772c6aa474a9a38bbd977b35882c421eb
SHA5124a6c94f0ddab6c243fd447f0c09f564f9b0c2cfc2d4fdf182dcf7ebd65964532cfe62da298f51f2f479077627d80a6cb69f90fda0094ba0fc3937d05a8c6a9fa