Analysis
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max time kernel
150s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
10-08-2024 16:47
Static task
static1
Behavioral task
behavioral1
Sample
86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe
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Size
43KB
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MD5
86ddb8f74624847a55b56b199a328f54
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SHA1
1feca7e9c5ee6f73047ea37d01d291afc6d88178
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SHA256
34eece1599d0d50006df8533a9d1b2006435212c36c3936ecbbc650e8746f0f4
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SHA512
b429ccab84e0d40d2612a2fdfabc304dcd86fa29c5aef29b44273e636deb1db46f28be4572b4d7686543badda886f0c174fbbb6ee10d8376259ed064eb841103
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SSDEEP
768:Fuv53X6uzpm9qFkDDZOuu/Dk9vx4XpVoAFnNVl+5fqJMxVxt6CDhOQ3:Iv53Ku9m9qeDkuZ4XpCAbWDwU
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\brastk = "C:\\Windows\\system32\\brastk.exe" 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\brastk = "C:\\Windows\\system32\\brastk.exe" 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\brastk.exe 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 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 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1476 wrote to memory of 2340 1476 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe 30 PID 1476 wrote to memory of 2340 1476 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe 30 PID 1476 wrote to memory of 2340 1476 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe 30 PID 1476 wrote to memory of 2340 1476 86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\86ddb8f74624847a55b56b199a328f54_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:2340
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
230B
MD5648cd00e6407e9822946033744e67d7b
SHA181554fb110e05d7fe79d56a578286ccefaff06d7
SHA256129c24f2b6c17ab8976ee23fccb8ae0fd9139142462a9488957f46040e1cec72
SHA5125094405ef55cb957b334ee3208769442a1ffd1ebfa55bfe6f7ddf5d67b48242a6475e84e8c4e9f6e83e2b46c88866dadb2cf831fb93f7c71889fadac3c7919d1