Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11/09/2024, 13:26
Static task
static1
Behavioral task
behavioral1
Sample
da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe
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Size
396KB
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MD5
da710b76949082f7dbe17dca13bcf18e
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SHA1
a915fe07447e44a73d35019d9fa8a0d2e9784264
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SHA256
26e64ee5c935d37e65a8ccf28c51257715e9d6b90cabf1e8c290843c17d8785a
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SHA512
7a08334376a76975d51ba33c248dddab0238f0bcce2c1b488a5d3445b570d3e02636aa1a40dba72fe45c75ab499edc2ded0ac4c1949c0090deba8d61bb635441
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SSDEEP
6144:ht6ELaO9T9xVNEF2idZecnl20lHRxp3gxsnJMDY8AiDfthaBKDHdOVa:XfLbxMF3Z4mxx8sng5rjaBva
Malware Config
Signatures
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Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\BITS\Parameters\ServiceDll = "C:\\Windows\\system32\\help.dll" Server.exe -
Executes dropped EXE 1 IoCs
pid Process 2200 Server.exe -
Loads dropped DLL 2 IoCs
pid Process 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/1848-37-0x0000000003180000-0x0000000003198000-memory.dmp upx behavioral1/files/0x0009000000016d9f-35.dat upx behavioral1/memory/2200-44-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2200-47-0x0000000000400000-0x0000000000418000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\help.dll Server.exe File opened for modification C:\Windows\SysWOW64\help.dll Server.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1848 wrote to memory of 2200 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe 30 PID 1848 wrote to memory of 2200 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe 30 PID 1848 wrote to memory of 2200 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe 30 PID 1848 wrote to memory of 2200 1848 da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\da710b76949082f7dbe17dca13bcf18e_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Server.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Server.exe2⤵
- Server Software Component: Terminal Services DLL
- Executes dropped EXE
- Drops file in System32 directory
PID:2200
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD586fd71ea41e9914328f10febd8f64cc6
SHA1011a422f3e48a2bc82e0853ee45cdb565471d042
SHA2566e89c99b7db726b0c223b0b38254e2c0457a057432ebc8022946709b7e9ae2d6
SHA5129f65b6d498d26fd8ec3492e111962140b99c4524dfdb8065f80c1485912ae362e342df0aa2fe575cab3f5f070b053768d36165be5228606eb18b233a1e75b1da