Analysis
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max time kernel
141s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
27-07-2024 08:19
Static task
static1
Behavioral task
behavioral1
Sample
7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe
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Size
379KB
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MD5
7781c1145869cdf87cf61d671247e80e
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SHA1
e2f76f546d3e4ff3e748fb6d4b1b3d2890c3b1da
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SHA256
8ade36ca05b733841f178b46dabeefcd3cadb0d91ce83e0e313b68376c75189c
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SHA512
6d1767dc3ef0751f7a1d4c4b43d621a48a06124780e57393e5a5a8039d66a90468e8ba09a44210d02e63ab06c0bb367755f43220c9c265f2a3c5bf1ad9cdf776
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SSDEEP
6144:Lu2urzh9xu/XkauJza8em0Xs0anV3Ve1h3yU1OIGtNAkoIaNOBG29J8YLj4UdC/P:Lutrzh9xOXkFa8em0X0V3U1hx1OIGtNQ
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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\__tmp_rar_sfx_access_check_240617937 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\taskmgr.exe 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\taskmgr.exe 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 3372 taskmgr.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 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskmgr.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1052 wrote to memory of 3372 1052 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe 87 PID 1052 wrote to memory of 3372 1052 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe 87 PID 1052 wrote to memory of 3372 1052 7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7781c1145869cdf87cf61d671247e80e_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Users\Admin\Start Menu\Programs\Startup\taskmgr.exe"C:\Users\Admin\Start Menu\Programs\Startup\taskmgr.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3372
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
806KB
MD547cfdf331a80b2028a1b8aca61bd191b
SHA1d10bd40a735c6efbfa4fbfa6c842b4db5dba9445
SHA256c1a6cb5e7d001839c2ce9d368aacf34767867bce2309f9d28de95c7985a6cd1d
SHA5129ece7f127ddc29285214e7386951335719242a35001bc54c80aceb07c60f185b1eb6dce74a3b05760aec540888b529e73388f0d8ee26d4a41e3b54588e351a0d