Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28/04/2024, 21:59
Static task
static1
Behavioral task
behavioral1
Sample
664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe
Resource
win10v2004-20240426-en
General
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Target
664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe
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Size
31KB
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MD5
980cef1a713e80f1abf7601a6cd952be
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SHA1
5cf26101a663a547409e67b5eb0dcaaef1d5efeb
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SHA256
664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6
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SHA512
4a21b28cadb3c33963464e68ecbcd9e2509e489ffe8eb9c860636bbc92f6152654becf4bc68355f72e877e7460dc53fe40978591a9acdeb75c1ead8e8f35a3f7
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SSDEEP
768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhD:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYj
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 752 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 752 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4248 wrote to memory of 752 4248 664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe 81 PID 4248 wrote to memory of 752 4248 664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe 81 PID 4248 wrote to memory of 752 4248 664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe"C:\Users\Admin\AppData\Local\Temp\664a5b96897f59dda95828636d26494826f5ea5f4351bcb05e2b1d17522c7df6.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4248 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:752
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
32KB
MD53cc4436c2d303dec0b97bd794d412447
SHA116231cf06fae7fbc3b5d49023859351f47365344
SHA256fce41cad52f6ab81b044241c988d65a4b1434850c0990f78281ccbca907b13d7
SHA5126a8417742cce762f0b6c7bc2d33bd872ca13c6700c38e7a1e9a6244ca72c41077a3163923c51e12aeda2cb46024fa923765d359bc947f20a7f3e383239821152