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Analysis
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max time kernel
140s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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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Executes dropped EXE 1 IoCs
pid Process 1980 sixyahbi.exe -
Loads dropped DLL 2 IoCs
pid Process 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/2164-0-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral1/files/0x0008000000016d31-9.dat upx behavioral1/memory/2164-11-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral1/memory/1980-12-0x0000000000400000-0x0000000000423000-memory.dmp upx behavioral1/memory/1980-19-0x0000000000400000-0x0000000000423000-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 840 2164 WerFault.exe 29 -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2164 wrote to memory of 1980 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 31 PID 2164 wrote to memory of 1980 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 31 PID 2164 wrote to memory of 1980 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 31 PID 2164 wrote to memory of 1980 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 31 PID 2164 wrote to memory of 840 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 32 PID 2164 wrote to memory of 840 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 32 PID 2164 wrote to memory of 840 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 32 PID 2164 wrote to memory of 840 2164 5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Windows\SysWOW64\service\sixyahbi.exe"C:\Windows\system32\service\sixyahbi.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1980
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2164 -s 2522⤵
- Program crash
PID:840
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD55a780ba3ce69fa973d06d6e0ba6639c9
SHA1f61b9534a1c6683f89f0bfd9abb27e3524743db3
SHA256995e4ff1c8afe99b65bc518ff6045e691a409636a176e8cfd95d638977458128
SHA512d60f08c02b2b54ecd86ef6f1236fac653448a9df50d683603978f3eedde4534016e40360bc33872b5d4bfb36c2decef7b3b3210c20f2ae933b07cc300fef947f