Analysis
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max time kernel
150s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
07-07-2024 12:06
Static task
static1
Behavioral task
behavioral1
Sample
29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe
Resource
win10v2004-20240704-en
General
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Target
29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe
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Size
40KB
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MD5
29f72f4dcf90bbed3760f744cf8168a2
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SHA1
5f8109f0a2d90a6b0a958bea57e007a9664d1307
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SHA256
d011a9afed467505da21033b83989a087c7b4e31f396d5c400a1b86c6b5a6854
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SHA512
d84b00c37a14f0c45e6edb664a35f324e2add40596762f3c3733ab77df40504f4295e76774b0af8c2992802564ccc0f237753837fce710c713afb076450fd341
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SSDEEP
768:SU77Rbfnh9Ye4tboIYrKiM/9vLmxDkoaWynn/weeinGfHum+cx0hw59p/VVOP1bS:SU7zye4t8uiMExZMnnYyGfHuEx0kpjOs
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-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe" 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe" 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\braviax.exe 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2328 wrote to memory of 4068 2328 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe 84 PID 2328 wrote to memory of 4068 2328 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe 84 PID 2328 wrote to memory of 4068 2328 29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\29f72f4dcf90bbed3760f744cf8168a2_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "2⤵PID:4068
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
230B
MD51cf0f3046f29fef4b939b09993960643
SHA125dfc7c62e07c3ddb69f59c63ec944af9f7da0d2
SHA256c2f2b92c8d026f904a16fb51fec75c3b841bc1dcf32f66792055d7c956b22b2a
SHA51243485f21f25cd5e4c2dd3aa8ef768c5d2687af3339f279f1b724331a0681e44ffd51d62187bde1dc13e61c158d3c01a595239c6e9113438b0e51bb6c69e997ac