Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12/10/2024, 09:15
Behavioral task
behavioral1
Sample
3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe
Resource
win7-20241010-en
General
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Target
3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe
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Size
193KB
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MD5
3947070f08d106ba74bc35945a6405d4
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SHA1
f85447824afd08165f6de6382d082259219a3fee
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SHA256
47073a0b715b131d6d2f69f8cbdf77fc81a3ea74c29aa0a2bb2a2db0bc79918d
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SHA512
a4c4762b929a4a8094fc32a492b8cd11f365800f3d0a217577cf4554b3ab3088c22294e1b4e30382d698e7a354089c4a07b979f6339529e9788dec14bbc67cfb
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SSDEEP
3072:wjAvo7lBultySqPBP0TR2c3rWIG2gUwr0aQ88IphDF5LtDQ7nE/W4GfogdorIPE:wjJD6IaTR2c3UN0b88IphDNDbe40CIM
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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 3828 ins5867.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini ins5867.exe File opened for modification C:\Windows\assembly\Desktop.ini ins5867.exe -
resource yara_rule behavioral2/memory/1136-0-0x0000000000420000-0x000000000049A000-memory.dmp upx behavioral2/memory/1136-21-0x0000000000420000-0x000000000049A000-memory.dmp upx behavioral2/memory/1136-26-0x0000000000420000-0x000000000049A000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly ins5867.exe File created C:\Windows\assembly\Desktop.ini ins5867.exe File opened for modification C:\Windows\assembly\Desktop.ini ins5867.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 3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ins5867.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3828 ins5867.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3828 ins5867.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3828 ins5867.exe 3828 ins5867.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1136 wrote to memory of 3828 1136 3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe 85 PID 1136 wrote to memory of 3828 1136 3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe 85 PID 1136 wrote to memory of 3828 1136 3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\3947070f08d106ba74bc35945a6405d4_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1136 -
C:\Users\Admin\AppData\Local\Temp\ins5867\ins5867.exe"C:\Users\Admin\AppData\Local\Temp\ins5867\ins5867.exe" /e5833329 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
253KB
MD5990774201cab9f23e9b2a4dbfd7b322d
SHA1a77b83a8a3b9efcc38e8b3d1c42e681c1450470c
SHA25668da632d702639815cc5875aefd103304c528df93bd8e197e7d6335787d131ae
SHA5121d15af0b2a44b23319ffe35164b285868a32cd7b2e5810bf97902d5f91891eaf6f8f6e182d0ca9e6090a670f768567a3f667a95451d93e9881734f0c8b2ebde5