General

  • Target

    http://files.zortos.me

  • Sample

    230401-mag2caag5x

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://rentry.org/k45gz/raw

Targets

    • Target

      http://files.zortos.me

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Modifies security service

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks