Analysis
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max time kernel
13s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
25/03/2025, 02:13
Static task
static1
Behavioral task
behavioral1
Sample
SystemUpdate.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
SystemUpdate.exe
Resource
win10v2004-20250313-en
General
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Target
SystemUpdate.exe
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Size
38.5MB
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MD5
812fb887e9dba4a5484fef3e0affe368
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SHA1
a96a4132b8f03810d0c3862fa90108da8cc0bce6
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SHA256
5d99f5bf54c9d7728bbfd50f75b462d453130fff7df37a039cb8cfd490b2e397
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SHA512
a615394160fdec370b37885291c23d6584cde8287a618d3eda782fa9b9166abd733902f5f800657c801ef47bd1b4201b90782748c9057dca57dc0a579b65b44e
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SSDEEP
786432:gHrt2V0YlUNf5ajZV3p3vv8gt7usRxcJ+519jtD+/K48NJtvXdlxn8C4L:gL4uEUNf5WZggt5cmBRUK48rPlxC
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 668 Stub.exe -
Loads dropped DLL 2 IoCs
pid Process 2580 SystemUpdate.exe 668 Stub.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2580 wrote to memory of 668 2580 SystemUpdate.exe 29 PID 2580 wrote to memory of 668 2580 SystemUpdate.exe 29 PID 2580 wrote to memory of 668 2580 SystemUpdate.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"C:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2580 -
C:\Users\Admin\AppData\Local\Temp\onefile_2580_133873424947980000\Stub.exeC:\Users\Admin\AppData\Local\Temp\SystemUpdate.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:668
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.3MB
MD5e4533934b37e688106beac6c5919281e
SHA1ada39f10ef0bbdcf05822f4260e43d53367b0017
SHA2562bf761bae584ba67d9a41507b45ebd41ab6ae51755b1782496d0bc60cc1d41d5
SHA512fa681a48ddd81854c9907026d4f36b008e509729f1d9a18a621f1d86cd1176c1a1ff4f814974306fa4d9e3886e2ce112a4f79b66713e1401f5dae4bcd8b898b9