General

  • Target

    NEAS.1086d5f9adf63d6c82831e48cffabb2775d60789635ef6f5709bc06213ff69d3.exe

  • Size

    272KB

  • Sample

    231107-dm1vjsca99

  • MD5

    6896508d64289108686ce180937f1421

  • SHA1

    5fd6c54b3ab237aa4caf04f98a852b130f474b04

  • SHA256

    1086d5f9adf63d6c82831e48cffabb2775d60789635ef6f5709bc06213ff69d3

  • SHA512

    29e8580c7645babd80ec0d0044220557f3e72574051572562c78b36dd376d4861cd2a02058c268edd21bbf1e2d7a0050f5117a5e483a6a7baf0e060de6c1ac23

  • SSDEEP

    3072:9VXpKjioLc3nMszZ2UQz5yrzGAeRqvigxv4T5tLU3U:vpK2oLinM8NQz5yrzbeRqvfxs

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      NEAS.1086d5f9adf63d6c82831e48cffabb2775d60789635ef6f5709bc06213ff69d3.exe

    • Size

      272KB

    • MD5

      6896508d64289108686ce180937f1421

    • SHA1

      5fd6c54b3ab237aa4caf04f98a852b130f474b04

    • SHA256

      1086d5f9adf63d6c82831e48cffabb2775d60789635ef6f5709bc06213ff69d3

    • SHA512

      29e8580c7645babd80ec0d0044220557f3e72574051572562c78b36dd376d4861cd2a02058c268edd21bbf1e2d7a0050f5117a5e483a6a7baf0e060de6c1ac23

    • SSDEEP

      3072:9VXpKjioLc3nMszZ2UQz5yrzGAeRqvigxv4T5tLU3U:vpK2oLinM8NQz5yrzbeRqvfxs

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

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

    • XMRig Miner payload

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks