Resubmissions

05-01-2023 23:51

230105-3wbz8adf75 10

05-01-2023 23:48

230105-3tlrmshc4z 8

General

  • Target

    http://62.204.41.194/file.exe

  • Sample

    230105-3wbz8adf75

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.194/go.png

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://62.204.41.194/F1.exe

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.194/me.png

Extracted

Family

redline

Botnet

$

C2

31.41.244.135:19850

Attributes
  • auth_value

    66623f79e2af33286760f5dd6c4262dc

Targets

    • Target

      http://62.204.41.194/file.exe

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks