Analysis
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max time kernel
139s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16/10/2024, 23:31
Static task
static1
Behavioral task
behavioral1
Sample
4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe
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Size
344KB
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MD5
4f9d7ac2a7d970352a8fd6d302b1fd6e
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SHA1
fed01d03644f685f3a9913cb233eb5c37c3a2299
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SHA256
7a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355
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SHA512
ae26e69089b03ba69c7aa3a48b4a252d2534143ffb591317360a0c1534ce33bf9cb0fba5257483a752517e57a5be6033ab66a62f8fa8d0e1392a5d8f0447abf9
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SSDEEP
6144:iExt1KM6cy2udX0WyBA3oskpZj53lfUaohouTCKd8gN7SV3DNVOVU+:iELGt2u3eA3oTpHVfK+uTSgN7ADNVOVv
Malware Config
Signatures
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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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation _uantspro_.exe -
Executes dropped EXE 1 IoCs
pid Process 2436 _uantspro_.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe File opened for modification \??\PhysicalDrive0 _uantspro_.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 3 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 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language _uantspro_.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2436 _uantspro_.exe 2436 _uantspro_.exe 2436 _uantspro_.exe 2436 _uantspro_.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2436 _uantspro_.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1072 wrote to memory of 2436 1072 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe 95 PID 1072 wrote to memory of 2436 1072 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe 95 PID 1072 wrote to memory of 2436 1072 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe 95 PID 2436 wrote to memory of 4128 2436 _uantspro_.exe 96 PID 2436 wrote to memory of 4128 2436 _uantspro_.exe 96 PID 2436 wrote to memory of 4128 2436 _uantspro_.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\_uantspro_.exeC:\Users\Admin\AppData\Local\Temp\\_uantspro_.exe 7122⤵
- Checks computer location settings
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\_UANTS~1.EXE > nul3⤵
- System Location Discovery: System Language Discovery
PID:4128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
344KB
MD54f9d7ac2a7d970352a8fd6d302b1fd6e
SHA1fed01d03644f685f3a9913cb233eb5c37c3a2299
SHA2567a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355
SHA512ae26e69089b03ba69c7aa3a48b4a252d2534143ffb591317360a0c1534ce33bf9cb0fba5257483a752517e57a5be6033ab66a62f8fa8d0e1392a5d8f0447abf9