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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
13/10/2024, 16:51
Behavioral task
behavioral1
Sample
40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe
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Size
193KB
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MD5
40fdb4a609723d4d68fab406fb930085
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SHA1
81e56eb35e17f8e9dcb0e11dcc9eeedc3d6c170d
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SHA256
c6be5e666560026ce3681522e047c26db102d72ba2d637d4ff1e9c4832e51371
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SHA512
e8c425102c392b74e77cefcaf6bed5d650931a871f98365360b65c341008f949e22e20393d72dd1e6af7b9ea17c31d386c56ed8454e54ceb066bc663863e77d8
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SSDEEP
3072:gjAvo7lBultySqPBP0TR2c3rWIG2gUwr0aQ88IphDF5LtDQ7nE/W4GfogdorIPE:gjJD6IaTR2c3UN0b88IphDNDbe40CIM
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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 2580 ins6912.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini ins6912.exe File opened for modification C:\Windows\assembly\Desktop.ini ins6912.exe -
resource yara_rule behavioral2/memory/4952-0-0x0000000000660000-0x00000000006DA000-memory.dmp upx behavioral2/memory/4952-21-0x0000000000660000-0x00000000006DA000-memory.dmp upx behavioral2/memory/4952-26-0x0000000000660000-0x00000000006DA000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly ins6912.exe File created C:\Windows\assembly\Desktop.ini ins6912.exe File opened for modification C:\Windows\assembly\Desktop.ini ins6912.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 40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ins6912.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2580 ins6912.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2580 ins6912.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2580 ins6912.exe 2580 ins6912.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4952 wrote to memory of 2580 4952 40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe 86 PID 4952 wrote to memory of 2580 4952 40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe 86 PID 4952 wrote to memory of 2580 4952 40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\40fdb4a609723d4d68fab406fb930085_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Users\Admin\AppData\Local\Temp\ins6912\ins6912.exe"C:\Users\Admin\AppData\Local\Temp\ins6912\ins6912.exe" /t10272a0ad0edf20d37d8f04562b0dc /e9107993 /u8326f16e-dd66-11e2-a752-00259033c1da2⤵
- 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:2580
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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