Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 00:57
Static task
static1
Behavioral task
behavioral1
Sample
efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe
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Size
68KB
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MD5
efec83c1a2b5287f71d49dacbd0e0cb2
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SHA1
516efe382303a7d862a2ff16114eb9291ca82e2e
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SHA256
32dd41714a7bfa451f54ab53e1ccd560c96b2ece4b9360f2b3d39553bfe6e9c0
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SHA512
1153b5dcc4b73b5092bb0d6e1356210a896a094599c6ca52071783d0392a1544f0f1925f91c93ec2d3312391861b9cc5f1214ade8091ebbdbcd6ccfd5d888d7e
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SSDEEP
1536:7azZfromYUFbSO5Km2vev2jev5yIqRtPDacT:7aVyU8OiWOjvIqRtPDacT
Malware Config
Signatures
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Sets DLL path for service in the registry 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet002\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" svchost.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet002\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" svchost.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\Workstain\Parameters\ServiceDll = "%SystemRoot%\\System32\\Workstain.dll" svchost.exe -
Deletes itself 1 IoCs
pid Process 3028 svchost.exe -
Loads dropped DLL 2 IoCs
pid Process 208 efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe 3028 svchost.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\Workstain.dll efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 664 Process not Found -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3028 svchost.exe 3028 svchost.exe 3028 svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\efec83c1a2b5287f71d49dacbd0e0cb2_JaffaCakes118.exe"1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:208
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k Workstain1⤵
- Sets DLL path for service in the registry
- Deletes itself
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:3028
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
77KB
MD5d52c9831629e33675d18881a04c9dd65
SHA1e0048ed2a6191941e478f7e0e26c8d5f7a0a9313
SHA256fbe95c5eb167bfef3f5787ddfa0ecaf53cccf24678ba21393d64edcb2eeaf322
SHA5121ddd2589d6a68934569225be7efda340e961bfdde4ed036bfcc17b881f3f9df573af96149665bf54a8b9b07e3febf122bcbf7295db40789c02055e4c278ea61a