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Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
15/07/2024, 18:56
Behavioral task
behavioral1
Sample
4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe
Resource
win7-20240704-en
General
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Target
4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe
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Size
681KB
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MD5
4af99412e169f9267b8a9233abba5a73
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SHA1
a9cb06d3db5e2f38277a0f1605aaa71518e38a69
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SHA256
5b8f86046bc88c7a2ddf8307873364dc6e781c0b926a3c4124e62f0b0d82c87a
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SHA512
c63cac97be2832000779c5e03aad1ba87794ef3974811c6abb45b72c5fbc6374e72433ceffd684ac5be4d904a0798844febb8231d40250e5377c3b7f9ad3db1f
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SSDEEP
12288:kPWGlHW6yRy5WxOr9YcjhFN9FM04UD8YxnpzsQXg1kHUldkJRR/+Uhav:kPr5yRW9fF1lLsQwmHUlir+Uh6
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2844 SiZhu.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Wine 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Wine SiZhu.exe -
Loads dropped DLL 2 IoCs
pid Process 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/1296-0-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/memory/1296-2-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/memory/1296-3-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/memory/1296-4-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/files/0x000700000001211b-13.dat themida behavioral1/memory/2844-16-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/memory/1296-14-0x0000000000400000-0x0000000000586000-memory.dmp themida behavioral1/memory/2844-20-0x0000000000400000-0x0000000000586000-memory.dmp themida -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe File opened (read-only) \??\H: 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\SiZhu.exe 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe File created C:\Windows\SysWOW64\SiZhu.exe 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\SiZhu.exe SiZhu.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 2844 SiZhu.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 2844 SiZhu.exe 2844 SiZhu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1296 wrote to memory of 2844 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 31 PID 1296 wrote to memory of 2844 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 31 PID 1296 wrote to memory of 2844 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 31 PID 1296 wrote to memory of 2844 1296 4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\4af99412e169f9267b8a9233abba5a73_JaffaCakes118.exe"1⤵
- Identifies Wine through registry keys
- Loads dropped DLL
- Enumerates connected drives
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1296 -
C:\Windows\SysWOW64\SiZhu.exeC:\Windows\system32\SiZhu.exe SiZhu2⤵
- Executes dropped EXE
- Identifies Wine through registry keys
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2844
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
681KB
MD54af99412e169f9267b8a9233abba5a73
SHA1a9cb06d3db5e2f38277a0f1605aaa71518e38a69
SHA2565b8f86046bc88c7a2ddf8307873364dc6e781c0b926a3c4124e62f0b0d82c87a
SHA512c63cac97be2832000779c5e03aad1ba87794ef3974811c6abb45b72c5fbc6374e72433ceffd684ac5be4d904a0798844febb8231d40250e5377c3b7f9ad3db1f