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Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
22/08/2024, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
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Size
56KB
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MD5
b959399ac73dbf0d6b20085760679bda
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SHA1
daedea641a1906631f489d5134ae7f46a6fbfae2
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SHA256
9acd993cdeb62c0ddfc2051de07fdb6b45b305545fa83541d199531e4f482b98
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SHA512
efc2b838b5d655cea1f9b3d384321d265b84ed17db47331c382e919d1a978f0c14e5e39b1769b32834adca0c535dc5ab56b6eae0b908ea17bf983918dd64ca2b
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SSDEEP
1536:jClgOD2kuqO5Kz1DLzMJ10WEzfmuH7OEz:jClgOD2N35KZzWubbz
Malware Config
Signatures
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Server Software Component: Terminal Services DLL 1 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll" b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet002\services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll" b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll" b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe -
Deletes itself 1 IoCs
pid Process 2748 svchost.exe -
Loads dropped DLL 2 IoCs
pid Process 2752 b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe 2748 svchost.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\00049c03.001 b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe File created C:\Windows\SysWOW64\bkryyu.dll b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe -
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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe"1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2752
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k Microsoft1⤵
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2748
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
89KB
MD525aea626a11f70f86f378a72c76f330f
SHA13db84ac465e98ca6af17f71a7576b30ff67f8083
SHA256a4324e990457dc0b3680c8ca2168e886d3f2c9a9d9f3f7a174f795729a54f58c
SHA51276de2c3b9a7cce1f709d1cc4a5d9d86d9a3673565fb19e572aeea164276b1d562cd57237f4340e66eee64348261b2309fd7029e66c3ea4f5f9efe4be60ef21ca