Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
28-02-2024 16:16
Static task
static1
Behavioral task
behavioral1
Sample
ac4eee82e6808f3871345bf64aea6599.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ac4eee82e6808f3871345bf64aea6599.exe
Resource
win10v2004-20240226-en
General
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Target
ac4eee82e6808f3871345bf64aea6599.exe
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Size
121KB
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MD5
ac4eee82e6808f3871345bf64aea6599
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SHA1
a8e44c04cee7dc41af123cb0fc976a05da637aa1
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SHA256
e499cad8af3956c3976e81d63e0601a38617a4b36fefa8944790b833f32d3d7c
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SHA512
0e6c8a370e4ebdc6688156d5bb4374f5ff4c0bdb3a0920a658e30beb40b1b5360c78c1a4f1ebdf48f0b6f3e72084f70ca39f1461d273f9e6d24189d890bb1a66
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SSDEEP
3072:5hwGr86LUEkIT2Ioi1HupRCZ8Ij26QTu7wsRQ/ustd6gHIkRO6/5uka:RuZIfbh7hZYC
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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation ac4eee82e6808f3871345bf64aea6599.exe -
Executes dropped EXE 1 IoCs
pid Process 2308 Temp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Temp.exe" Temp.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ ac4eee82e6808f3871345bf64aea6599.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2220 wrote to memory of 2308 2220 ac4eee82e6808f3871345bf64aea6599.exe 90 PID 2220 wrote to memory of 2308 2220 ac4eee82e6808f3871345bf64aea6599.exe 90 PID 2220 wrote to memory of 2308 2220 ac4eee82e6808f3871345bf64aea6599.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\ac4eee82e6808f3871345bf64aea6599.exe"C:\Users\Admin\AppData\Local\Temp\ac4eee82e6808f3871345bf64aea6599.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Users\Admin\AppData\Roaming\Microsoft\Temp.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Temp.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:2308
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
121KB
MD5ac4eee82e6808f3871345bf64aea6599
SHA1a8e44c04cee7dc41af123cb0fc976a05da637aa1
SHA256e499cad8af3956c3976e81d63e0601a38617a4b36fefa8944790b833f32d3d7c
SHA5120e6c8a370e4ebdc6688156d5bb4374f5ff4c0bdb3a0920a658e30beb40b1b5360c78c1a4f1ebdf48f0b6f3e72084f70ca39f1461d273f9e6d24189d890bb1a66