Analysis
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max time kernel
92s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
12-06-2024 20:54
Static task
static1
Behavioral task
behavioral1
Sample
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe
Resource
win7-20240508-en
General
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Target
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe
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Size
4.4MB
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MD5
a251ab42e6336d564b858cdeefc2678b
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SHA1
660beae5f5312471029cc1393f1477408cbf6697
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SHA256
fd12ad7d9ac7ea5d0719ee1e9c1693e8aa55777ab695e87e1286474bad5b476b
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SHA512
ce9f82087e3e0625afc44e586f53c4363208c871314c93978699f256bcd835b492d3ff19cc7fbfe43c9f7b2533cfb123d1769e9090bb9c3068f3e5addaf13094
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SSDEEP
98304:tNwEf0x018aUP9GndDTFLx4FejNMaDje4Cq67QfguIPPt9oEW:tNwE8wUEn9T9mejXFM7QYZtlW
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exepid process 2872 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Software\Wine a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe upx behavioral2/memory/2872-4-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral2/memory/2872-8-0x0000000000400000-0x0000000000462000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exepid process 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 744 2872 WerFault.exe a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exepid process 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exedescription pid process target process PID 4660 wrote to memory of 2872 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe PID 4660 wrote to memory of 2872 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe PID 4660 wrote to memory of 2872 4660 a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exeC:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exe2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 2643⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2872 -ip 28721⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\a251ab42e6336d564b858cdeefc2678b_JaffaCakes118mgr.exeFilesize
106KB
MD57dc51d67dba12402674baf7e67bfc89d
SHA194b2e12ec5f4258bf8727d53276331457a558edb
SHA256ebaf815f84fd4fb931265e7c92119d2ad540620dfe9f8883a4f08b6796318f87
SHA5125d76770e6fab626f6b7de2126ef8af39bb2e49162dc0c14d06a074653a68ecb6bc381d930ce974ebc2f8c4dfcfa7502f8699a426cd837230d497165ddbf6c901
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memory/2872-4-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/2872-6-0x00000000005B0000-0x00000000005B1000-memory.dmpFilesize
4KB
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memory/2872-8-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/4660-3-0x0000000000400000-0x0000000000E9A000-memory.dmpFilesize
10.6MB
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memory/4660-7-0x0000000000400000-0x0000000000E9A000-memory.dmpFilesize
10.6MB
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memory/4660-9-0x0000000000400000-0x0000000000E9A000-memory.dmpFilesize
10.6MB