Analysis
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max time kernel
120s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
04-12-2024 00:04
Static task
static1
Behavioral task
behavioral1
Sample
bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe
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Size
1.1MB
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MD5
bfe12fb8d7d9950cea0e971eecd34ecc
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SHA1
abb68bd1bd81d6ef7f1246126a5b24d186df4363
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SHA256
a0ebe9529cf44d697fe7128b3faa5f2b2faeb954e55e54c4cf47e2b43d32d867
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SHA512
46fa47f5698e694aa15bae7d32d873c78fbd1ec5bf9d289df03256378d2ec5c46d0e84a9fd8a534b681284466af5517a38184c4b4e4b46a42aeafd49cfac8edc
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SSDEEP
24576:nbPTh3uWFLW1vkE7PFdRMaUMvTAr7VaZmkdz6o+v/kckei9Zo6qYPhMiJ:n7ThttW1v7hCMvTeEmkdzj+HkdHLqi
Malware Config
Signatures
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Ardamax family
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Ardamax main executable 1 IoCs
resource yara_rule behavioral1/files/0x0007000000018bf3-6.dat family_ardamax -
Executes dropped EXE 1 IoCs
pid Process 2160 CJS.exe -
Loads dropped DLL 2 IoCs
pid Process 2780 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe 2160 CJS.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CJS Start = "C:\\Windows\\SysWOW64\\RFECGC\\CJS.exe" CJS.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\RFECGC\CJS.004 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe File created C:\Windows\SysWOW64\RFECGC\CJS.001 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe File created C:\Windows\SysWOW64\RFECGC\CJS.002 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe File created C:\Windows\SysWOW64\RFECGC\AKV.exe bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe File created C:\Windows\SysWOW64\RFECGC\CJS.exe bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\RFECGC\ CJS.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 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CJS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 2160 CJS.exe Token: SeIncBasePriorityPrivilege 2160 CJS.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2160 CJS.exe 2160 CJS.exe 2160 CJS.exe 2160 CJS.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2780 wrote to memory of 2160 2780 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe 30 PID 2780 wrote to memory of 2160 2780 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe 30 PID 2780 wrote to memory of 2160 2780 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe 30 PID 2780 wrote to memory of 2160 2780 bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bfe12fb8d7d9950cea0e971eecd34ecc_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\RFECGC\CJS.exe"C:\Windows\system32\RFECGC\CJS.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
448KB
MD5c49125a39e0ae69b1cc77040ba8a9441
SHA192941e9559d9b1a0a944595377b6c5d44b53a6a4
SHA256f7e3d70532b7a0b04bde2fc3a9439b8a95ba7b89eff5f214ef53041a58c97524
SHA512f61f42e500ebdd0559c420f05849265964e58aba7bb2be1095d41dddc1393ccf2191de0ed61d5fefd3957c4890c61fced1497481b76f158a12f7d95e626224c6
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Filesize
61KB
MD529136121b1c0307a02a8826477995613
SHA14dffe908036a21be56a9caa739ec1bf1cf9bd0ca
SHA256f9dd403e696d2128cafe9a4bab54a28161745934df6d3479a066083a61515402
SHA5122c7077ff82e948b9a9b6b16214dfdd11e222f07fb0a75aec59a9dafc29906907f24e0c625cefd5032321cc7883c00fd0abc7801f185983190f353b6dff2774c7
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Filesize
43KB
MD5d977f26d7f7ffcb0f002813b55ff032d
SHA17e17b642dc1286908c18caba6fedb890de8fcc86
SHA2562ce6c66843f0d0f156ae523f25d2cf4c9886fcae7b4f69deefbde4bc5328bf29
SHA512e291f6acf5df88c52eb9232d55eb43fc08cbd423b7ae46148f710de909db49c04fc1d64e05b8e307ddd880134c525188109b94182ca99ea5934b66b9316e9e25
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Filesize
684B
MD5d5172059d6165964c4973a3d96149a52
SHA15158d29a8a29e1a749510fc1d8edef76814a50cb
SHA256da9436d530fd6c889e56de056a13ac5790dbda41eef7b152ab8efde8d4320304
SHA512532f4ee52a7f5411a7137452a584549e8268f87dbb1ba2bf271e96f98534efeabd9040ddf56a7dcab929b098f53c49f8e4fc4afb1ea3b1fa95d5001fdf6644c4
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Filesize
1.4MB
MD527a49221ba75a90934342bbe70f6c954
SHA1751e322d6f7e46c132f0f97c56d60344248f1959
SHA256946611f5091452aa46310d3ba8a885e808617b8ae9c57a468f7fe3abda4b052d
SHA5129476f49d2e3c10f3e5cd91313e03405f944bc9887fd65e6c2236caab3a42e2c9a5392d7c34f6c5787a7dc8c3cfd43a3a90a6e052176aa60a43da0327d7ff78d6