Analysis
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max time kernel
121s -
max time network
141s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
08/02/2022, 17:30
Behavioral task
behavioral1
Sample
b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe
Resource
win7-en-20211208
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe
Resource
win10v2004-en-20220113
0 signatures
0 seconds
General
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Target
b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe
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Size
3.0MB
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MD5
18d677163ec5b5be2f78051cd465f13f
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SHA1
a9ece82cb71de649fec043b19567b07258d3a8bf
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SHA256
b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5
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SHA512
6c6b9bba0782e57dc799f1fedc8f2f0b4a5117701348fa5f94fd32820b963dc03cef8bb161dd012336c13468be9d73010f8d9ebd10ad72814b7b7f75d9ff58bb
Score
8/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 332 3.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File opened for modification C:\Program Files\TeamViewer 3.exe File created C:\Program Files\TeamViewer\__tmp_rar_sfx_access_check_259407479 3.exe File created C:\Program Files\TeamViewer\TeamViewer_Service.exe 3.exe File opened for modification C:\Program Files\TeamViewer\TeamViewer_Service.exe 3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
pid Process 332 3.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1620 wrote to memory of 1744 1620 b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe 27 PID 1620 wrote to memory of 1744 1620 b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe 27 PID 1620 wrote to memory of 1744 1620 b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe 27 PID 1620 wrote to memory of 1744 1620 b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe 27 PID 1744 wrote to memory of 332 1744 cmd.exe 29 PID 1744 wrote to memory of 332 1744 cmd.exe 29 PID 1744 wrote to memory of 332 1744 cmd.exe 29 PID 1744 wrote to memory of 332 1744 cmd.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe"C:\Users\Admin\AppData\Local\Temp\b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\system32\cmd.exe"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\2F3B.tmp\2F3C.bat C:\Users\Admin\AppData\Local\Temp\b8e1c2faba54c996024d3d9695e0b9e8547dd65b7a0f4c16d1f69a0c5596a1b5.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Users\Admin\AppData\Local\Temp\2F3B.tmp\3.exe3.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: CmdExeWriteProcessMemorySpam
PID:332
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