Resubmissions

17/06/2022, 07:59

220617-jvvamabael10

29/05/2022, 16:27

220529-tx3pwsffh210

General

  • Target
    015e6a91fc2397216cdf2e0c0e7e4132
  • Size 198KB
  • Sample220529-tx3pwsffh2
  • SHA256 29aecf60d2b78688a409dd254eba6414e13fded9ebca1ac8beb624e252ae2f0c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • tofsee

C2
  • svartalfheim.top

  • jotunheim.name

  • ��Op��;L��jy��d-���Mݤm4�čT��t=͔]$��}D ԝd-���Mݤm4�čT_�t=��)Q��-`��@���Mݤm4�čT��t=͔]$��}D ԝd-���Mݤm4�čT��t=v�]$�

  • ��

Targets

    • Target
      015e6a91fc2397216cdf2e0c0e7e4132
    • Size 198KB
    • SHA256 29aecf60d2b78688a409dd254eba6414e13fded9ebca1ac8beb624e252ae2f0c
    • MD5 SHA1 SHA512
    • 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)

    • Executes dropped EXE

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks