Analysis
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max time kernel
134s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19/08/2024, 01:17
Behavioral task
behavioral1
Sample
a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe
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Size
81KB
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MD5
a900a5429c5fd16d65217fd28438be09
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SHA1
a722729aae4f452bc78c4b3f195ef5ddb03de270
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SHA256
d1b621c9f83d9a6c1280a1d2625a7ac638ed6b3a7838535ef773e5070f09542d
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SHA512
e9afc23d265c445b18c374b099bd2db17365df5d04f1024fc71a45574998b0463661fc1a9dfa114019a053abdd73eff0aa0a11d08945bc3e45cd5e904243263c
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SSDEEP
1536:KAX+vZIHuk0fJXYbfEyw5e4aSsJSr0eRkOKEuYBiyYgI0/vF:KzRIoobEywiSsDeatudf/vF
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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 1496 Tempdecrypted.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2980 1496 WerFault.exe 88 -
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 a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Tempdecrypted.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4320 a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4320 wrote to memory of 1496 4320 a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe 88 PID 4320 wrote to memory of 1496 4320 a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe 88 PID 4320 wrote to memory of 1496 4320 a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4320 -
C:\Users\Admin\AppData\Local\Tempdecrypted.exe"C:\Users\Admin\AppData\Local\Tempdecrypted.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1496 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 2843⤵
- Program crash
PID:2980
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1496 -ip 14961⤵PID:3920
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
65KB
MD5d24d69457b466ece29b2c088b1011729
SHA1b7182bce95c36cc9f353d587ee14a0b9e1e93e59
SHA2567a22f35ac96c179ad2d29db0d3e4d4f096eb356ab45c25233d7275c4485a1c7e
SHA512a7ff2c2a9ffd316142eb68489c5876101ee2361e0a6612ae21d1778d6e852d1d3916fb2a732bd38e4e1336eb4549e1690c5edc01141d1ba89142e39d05e40e61