Analysis
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max time kernel
125s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
08/09/2024, 02:33
Behavioral task
behavioral1
Sample
539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe
Resource
win10v2004-20240802-en
General
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Target
539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe
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Size
92KB
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MD5
c28098175997d42658cc962fddfa4d66
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SHA1
3ff7792a3f7aef62db8f3e356c774a4eae0971e3
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SHA256
539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0
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SHA512
c4967c12ece1848dce16bb4b0d4bb507429ed7d4c44d0b23f048110bf98adf98331d37dc12004195a51ab227c2343dcf4e640198554fba8feaaf6e823497157f
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SSDEEP
1536:TJbCiJVkgMaT2itTkjoRXnM48dXFajVPYxCEtkz30rtr3:9bfVk29te2jqxCEtg30Bj
Malware Config
Extracted
sakula
www.savmpet.com
Signatures
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Sakula payload 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023430-3.dat 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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe -
Executes dropped EXE 1 IoCs
pid Process 3600 AdobeUpdate.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\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.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 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AdobeUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 4216 cmd.exe 4544 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4544 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3404 wrote to memory of 3600 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 83 PID 3404 wrote to memory of 3600 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 83 PID 3404 wrote to memory of 3600 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 83 PID 3404 wrote to memory of 4216 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 96 PID 3404 wrote to memory of 4216 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 96 PID 3404 wrote to memory of 4216 3404 539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe 96 PID 4216 wrote to memory of 4544 4216 cmd.exe 98 PID 4216 wrote to memory of 4544 4216 cmd.exe 98 PID 4216 wrote to memory of 4544 4216 cmd.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe"C:\Users\Admin\AppData\Local\Temp\539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.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:3404 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3600
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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\539e4310882605c47f0e625def8f057758df0a3072cb4d7a5894a5570c6aa3f0.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4216 -
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:4544
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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
92KB
MD58d634044f777fd05950bedbe51ecd442
SHA140f7688e976265f93895bbc17a40141a50b47b3a
SHA256fc1f7e299673421320eaf566cd174c7d0c82387b60032a2112632d9be69f4fbe
SHA51277b7e34a0f4c63a079f71cf52829741e31f95230e36cdd02d6d793e2a4a31e6dc07e7411fd863856441ee679a25e5ac85d273f78e2034fa6d133a4d635b72d02