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Analysis
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max time kernel
95s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2024, 19:49
Static task
static1
Behavioral task
behavioral1
Sample
c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe
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Size
478KB
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MD5
c41e2d74301ee7ca1a6f17ee4a98f0bd
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SHA1
dd1dfb27fd0bb98c25a738de583b80630d8149f0
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SHA256
e18a3053c84fbb2d2fb05e342b3069e1a564661fa63bc25809398f199e32f33a
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SHA512
c7c1519825508a0c6fdde009df175cfe93554f974a4088aba9468d1238a6f5cbdba7c6546bcf5f3e735271f79215c763c3053b33a58fd2f85dea291f7b78d98d
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SSDEEP
12288:ctlO6MzJvlXglawzAAuf/Jhjw7bQFgwT8Gh:2lOhzJvlXglBA//XecFHTdh
Malware Config
Signatures
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Ardamax family
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Ardamax main executable 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023c9d-12.dat family_ardamax -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 1476 system32BLSJ.exe -
Loads dropped DLL 4 IoCs
pid Process 1184 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe 1476 system32BLSJ.exe 1476 system32BLSJ.exe 1476 system32BLSJ.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\system32BLSJ Agent = "C:\\Windows\\system32BLSJ.exe" system32BLSJ.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 Windows directory 5 IoCs
description ioc Process File created C:\Windows\system32BLSJ.001 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe File created C:\Windows\system32BLSJ.006 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe File created C:\Windows\system32BLSJ.007 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe File created C:\Windows\system32BLSJ.exe c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe File created C:\Windows\system32AKV.exe c41e2d74301ee7ca1a6f17ee4a98f0bd_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 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language system32BLSJ.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 1476 system32BLSJ.exe Token: SeIncBasePriorityPrivilege 1476 system32BLSJ.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1476 system32BLSJ.exe 1476 system32BLSJ.exe 1476 system32BLSJ.exe 1476 system32BLSJ.exe 1476 system32BLSJ.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1184 wrote to memory of 1476 1184 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe 82 PID 1184 wrote to memory of 1476 1184 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe 82 PID 1184 wrote to memory of 1476 1184 c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c41e2d74301ee7ca1a6f17ee4a98f0bd_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Windows\system32BLSJ.exe"C:\Windows\system32BLSJ.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1476
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
MD5d9e02f226fc338d14df200ba9a700625
SHA1414f134a16a309b31e418ed9e08c0c48aaf6e2bc
SHA2568165757efb79acceb9fd0bfae6b2c19b8f087cc0461abb17941d460dbdf2e260
SHA51213c73381602fe2593312d41ab4bc5cd5f922ac651f9e71e3fe3c58e7f0c5c73ecc9d79d61ec46f33a0a81cf73373421eeb510bd99650c0f53af30974ed61b8ca
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Filesize
464B
MD52a2b96b665229b3d8d3724f8cd6f1781
SHA106a2fd83eb6cd7c5b765cc718117f707e411276f
SHA25651c60a1ccb8f252d7041ed740a9e64b1ca42eb0268f897a4faf5e5bdbd336c56
SHA5120d619bf732147770601228101e2570ee58daf4798f0dcc2af3a6df4ea289997ab688459b932d92ebb2403c375892acd8fb9712e94b7ad562f0f73dcf2c7903dc
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Filesize
7KB
MD532dd7b4bc8b6f290b0ece3cc1c011c96
SHA1b979683868b399c6a6204ebaed9fc9c784a0429a
SHA2566dcce9bbba5c2de47eea3abf7597a9c4fb2e4d358efc3752fa65c169cccfa2a1
SHA5129e0d720799fe816f7d09c8a722b762203b6f12a8625c1c93cd640219ecc35969bd641b4d9e6dc04ab6f95ceb73235a438eb7d48ee9402118db3618b5760551ea
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Filesize
5KB
MD5e8155b68775ed29590e14df80fdc0e9f
SHA1ed449da02e648a524004c265f3c37496d2f07f1f
SHA256b39ba894b0a9a3201461ddd9ee9b297928e793dff221a47f019e75c11df631f3
SHA512b14e00c46cf9bed0aca0f85775f624ff064f2d2afe1fa68b61bee5729db73cf9a8eced669c52d7cbb9504ff1b369a9a16a0f36c71a70c13c0bd1eaf5e07ccc11
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Filesize
471KB
MD53c06bbc025b61d2182ef5573f2852bda
SHA1ebc1464c00b13fb5b3f80a59c80b595020e1fe7c
SHA256e7f64e7215284cdeb8ef1eba28733f7aeae7f6977f82809d8de1e76a2e249085
SHA5129d839ada211b85fc1efb1fe7bb3ce66fcf0e8069221d958234649c2ac5dc0f1bd06f1a016f9c727077af36fb46cac5409be9c8a8201d17f689c6b473aa01acdc