General

  • Target

    file.exe

  • Size

    259KB

  • Sample

    221028-mpdbpsfgfn

  • MD5

    29c4f7975a92090a67d7e7a553be8c03

  • SHA1

    ccfc84730518ba202b596052bfe6a9db1228316f

  • SHA256

    6724ddb4e9eead37ddda5526efa5484e37ade99449de76fc84b9dd2aa90648ed

  • SHA512

    c57d70dfc33fa768e9557fae92ab21855308b9cac03875342e4f97b7ffce3a2d41d34e29e0c0380404f82e006b7769045696970dab3d86e714e570fd483274b3

  • SSDEEP

    6144:KktHzL2usorLDNdcYBOT2g7PcJpXbH0Nv2qKozEZT:KktHzqVoXBdcaOMVbHqOqwT

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      259KB

    • MD5

      29c4f7975a92090a67d7e7a553be8c03

    • SHA1

      ccfc84730518ba202b596052bfe6a9db1228316f

    • SHA256

      6724ddb4e9eead37ddda5526efa5484e37ade99449de76fc84b9dd2aa90648ed

    • SHA512

      c57d70dfc33fa768e9557fae92ab21855308b9cac03875342e4f97b7ffce3a2d41d34e29e0c0380404f82e006b7769045696970dab3d86e714e570fd483274b3

    • SSDEEP

      6144:KktHzL2usorLDNdcYBOT2g7PcJpXbH0Nv2qKozEZT:KktHzqVoXBdcaOMVbHqOqwT

    • 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