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General

  • Target

    file

  • Size

    357KB

  • Sample

    230210-ra7zzsca6w

  • MD5

    417696104a850fb6d641959c9e084e0f

  • SHA1

    99f739f830c5555b8e00c8d40dca115f14d5d780

  • SHA256

    9dbd56890ad94f339c4b41633cb919614717aa56ef6fd109823f5b8fc8cb64cc

  • SHA512

    c7eaf00e1104a3d9d74dc6f3658b7af309979db64858ff339db511039b965e420056c21fb315bfe4b4e2bb98432d4ccb9f1b565871b33cab2f130cdc368186a2

  • SSDEEP

    3072:/9N5bk+xtGNaL/ROaFjXrEThTVDsSKnxkv4lZC9nf6NT2UU:l5LgaLkaFjkhJYSKxm4lOnfWT

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file

    • Size

      357KB

    • MD5

      417696104a850fb6d641959c9e084e0f

    • SHA1

      99f739f830c5555b8e00c8d40dca115f14d5d780

    • SHA256

      9dbd56890ad94f339c4b41633cb919614717aa56ef6fd109823f5b8fc8cb64cc

    • SHA512

      c7eaf00e1104a3d9d74dc6f3658b7af309979db64858ff339db511039b965e420056c21fb315bfe4b4e2bb98432d4ccb9f1b565871b33cab2f130cdc368186a2

    • SSDEEP

      3072:/9N5bk+xtGNaL/ROaFjXrEThTVDsSKnxkv4lZC9nf6NT2UU:l5LgaLkaFjkhJYSKxm4lOnfWT

    • 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 v6

Tasks