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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
19/07/2024, 04:30
Behavioral task
behavioral1
Sample
5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe
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Size
41KB
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MD5
5a780ba3ce69fa973d06d6e0ba6639c9
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SHA1
f61b9534a1c6683f89f0bfd9abb27e3524743db3
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SHA256
995e4ff1c8afe99b65bc518ff6045e691a409636a176e8cfd95d638977458128
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SHA512
d60f08c02b2b54ecd86ef6f1236fac653448a9df50d683603978f3eedde4534016e40360bc33872b5d4bfb36c2decef7b3b3210c20f2ae933b07cc300fef947f
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SSDEEP
768:CH07dsAUzf836+0urSVYHWdO+W2nMbazblI5ADX:O07dQb+0NVYWO+HMmPlgAb
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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 216 sixyahbi.exe -
resource yara_rule behavioral2/memory/3476-0-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral2/files/0x0007000000023486-5.dat upx behavioral2/memory/3476-9-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral2/memory/216-10-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral2/memory/216-12-0x0000000000400000-0x0000000000423000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\avgtrail.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe" 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\avgtrail.exe = "C:\\Windows\\SysWOW64\\service\\sixyahbi.exe" sixyahbi.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\service\sixyahbi.exe 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.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 1196 3476 WerFault.exe 84 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3476 wrote to memory of 216 3476 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 87 PID 3476 wrote to memory of 216 3476 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 87 PID 3476 wrote to memory of 216 3476 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3476 -
C:\Windows\SysWOW64\service\sixyahbi.exe"C:\Windows\system32\service\sixyahbi.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 11442⤵
- Program crash
PID:1196
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3476 -ip 34761⤵PID:2204
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD55a780ba3ce69fa973d06d6e0ba6639c9
SHA1f61b9534a1c6683f89f0bfd9abb27e3524743db3
SHA256995e4ff1c8afe99b65bc518ff6045e691a409636a176e8cfd95d638977458128
SHA512d60f08c02b2b54ecd86ef6f1236fac653448a9df50d683603978f3eedde4534016e40360bc33872b5d4bfb36c2decef7b3b3210c20f2ae933b07cc300fef947f