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Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07/10/2024, 01:24
Static task
static1
Behavioral task
behavioral1
Sample
4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe
Resource
win10v2004-20240802-en
General
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Target
4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe
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Size
1.9MB
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MD5
219bc0b3320f5f73d684f07800c0134d
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SHA1
867abe30a0018c0c902f11a9edfb7c0262cdedf5
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SHA256
4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6
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SHA512
4bec94a472bdbd156f22bd4eddb44bb8b2c11910e4c12269fa73a7f71f4f290db4eb9014bf5e1ba322c97af7a195081821d35848b6ea93dce5e05a18cd6c88a4
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SSDEEP
49152:2RvAXWfY323knu/nL1Pv4ZWrgN4l07QfR0feTtH8FmmCCCCCvaFK3:UfrU2pSsF8FmmCCCCCL3
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 5856 doc-d.exe -
Loads dropped DLL 6 IoCs
pid Process 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 6120 WerFault.exe 6120 WerFault.exe 6120 WerFault.exe 6120 WerFault.exe 6120 WerFault.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\ibrzb = "C:\\Users\\Admin\\AppData\\Roaming\\ibrzb.exe" 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 5920 2400 WerFault.exe 29 6120 5856 WerFault.exe 30 -
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 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language doc-d.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe Token: SeDebugPrivilege 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe Token: SeDebugPrivilege 5856 doc-d.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2400 wrote to memory of 5856 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 30 PID 2400 wrote to memory of 5856 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 30 PID 2400 wrote to memory of 5856 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 30 PID 2400 wrote to memory of 5856 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 30 PID 2400 wrote to memory of 5920 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 31 PID 2400 wrote to memory of 5920 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 31 PID 2400 wrote to memory of 5920 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 31 PID 2400 wrote to memory of 5920 2400 4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe 31 PID 5856 wrote to memory of 6120 5856 doc-d.exe 32 PID 5856 wrote to memory of 6120 5856 doc-d.exe 32 PID 5856 wrote to memory of 6120 5856 doc-d.exe 32 PID 5856 wrote to memory of 6120 5856 doc-d.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe"C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Users\Admin\AppData\Local\Temp\doc-d.exe"C:\Users\Admin\AppData\Local\Temp\doc-d.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5856 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5856 -s 11443⤵
- Loads dropped DLL
- Program crash
PID:6120
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 6002⤵
- Program crash
PID:5920
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
15KB
MD5c9ef77ca68f77b6c1267a7314203c94b
SHA13c43348fdbcbb25f6a145d32c604f76844994c3f
SHA256fbcdfa1a6fb23286f43c1ac9cf45dc4be64f328cf1c719abe7fb503021bf9e3d
SHA5124893a117704eda88e3a8fc5e0d68c2b70da2a0fd439baae46b717ae41862f910ca4416fe2d89b7113722862a96ed746b1710f33643bf927f63a325542382baf6