General

  • Target

    ac3af6bd3139c444e8e146a6d48c110ae33c09d23c84b7b02f3d7af9eaa49c84

  • Size

    82KB

  • Sample

    230505-x1kj9sgg93

  • MD5

    0e4e3cdacfbe29fdc3e189e52ee8228e

  • SHA1

    59bdf38588f8fefefd49aa748dac4d025e9d0ec3

  • SHA256

    ac3af6bd3139c444e8e146a6d48c110ae33c09d23c84b7b02f3d7af9eaa49c84

  • SHA512

    4356a79c3c15f6bdd5c9e465f99cf5b5ea90edcf9e6e84be79cd3e128b3565462af4ce3982077f9f0b11035a30c3caedeae2ca4a62bc74eb6dc319c2236d302a

  • SSDEEP

    1536:Vdbe0uWRLLmR/epMMj1McUa33271MT1AosEeR9m+dIs:Tb/RLLmJMMMjK63E1MT1zr+dp

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.23/o.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.23/r.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://62.204.41.23/file.png

Extracted

Family

redline

Botnet

[ PRO ]

C2

185.161.248.16:26885

Attributes
  • auth_value

    b4958da54d1cdd9d9b28330afda1cc3c

Extracted

Family

systembc

C2

185.161.248.16:4440

Targets

    • Target

      ac3af6bd3139c444e8e146a6d48c110ae33c09d23c84b7b02f3d7af9eaa49c84

    • Size

      82KB

    • MD5

      0e4e3cdacfbe29fdc3e189e52ee8228e

    • SHA1

      59bdf38588f8fefefd49aa748dac4d025e9d0ec3

    • SHA256

      ac3af6bd3139c444e8e146a6d48c110ae33c09d23c84b7b02f3d7af9eaa49c84

    • SHA512

      4356a79c3c15f6bdd5c9e465f99cf5b5ea90edcf9e6e84be79cd3e128b3565462af4ce3982077f9f0b11035a30c3caedeae2ca4a62bc74eb6dc319c2236d302a

    • SSDEEP

      1536:Vdbe0uWRLLmR/epMMj1McUa33271MT1AosEeR9m+dIs:Tb/RLLmJMMMjK63E1MT1zr+dp

    • RedLine

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • xmrig

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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks