Analysis
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max time kernel
93s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2025, 14:58
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe
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Size
55KB
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MD5
40bf7c35b44d4b147c2e0969456bc557
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SHA1
3946b32552c81f9c254ae459a4f0e72c426be303
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SHA256
db5f68de01162f9978cee6bbd6e478400635ed609046d000144171a152055e5f
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SHA512
2190297bd25d90263cd7ba4b34ba496caecc419d2c078f9fc158bad3e7d5c30d2996c2b84f931a7711bb1076ae6376e58c48978fa38f3d2bf1a62b107d9a3e87
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SSDEEP
1536:YdtD3Qqymrr0Hva/Gey+I9LuaQSzdbbSkOep:YvHypsjy+cLZzpzp
Malware Config
Signatures
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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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EF99D588-3D5F-4194-828A-E03870A57A77} JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\lm.dat JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe File created C:\Windows\SysWOW64\gcomd32.dll JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.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 2 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 JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe -
Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\ = "Rmn plugin" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\InprocServer32 JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\InprocServer32\ = "gcomd32.dll" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\InprocServer32\ThreadingModel = "Apartment" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\ProgID JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\ProgID\ = "RITLAB.1" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77} JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\TypeLib\ = "{79DB35EA-0D3F-44b2-8ED4-0E80B681F1CC}" JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF99D588-3D5F-4194-828A-E03870A57A77}\TypeLib JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2720 wrote to memory of 3504 2720 JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe 83 PID 2720 wrote to memory of 3504 2720 JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe 83 PID 2720 wrote to memory of 3504 2720 JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe"1⤵
- Checks computer location settings
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:3504
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