General

  • Target

    259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c

  • Size

    207KB

  • Sample

    231121-ffjzkada3s

  • MD5

    1063b50e4283dd4a74e80ef4e9ab1e93

  • SHA1

    40bf547f2a7dcc107c02fbf15cc6f717d8042200

  • SHA256

    259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c

  • SHA512

    f4bd07f60ebdc1d9eca3741c6daabe094f1985f623b0c1b513849c8d99c6062039bb24e9ce64682b9561e9d1b716f922ef3398ff4ecbf32a84da0493785c5b4a

  • SSDEEP

    3072:eZzbmIis7CwOgdSoOxrlDPlwVzoIkINXwcz5w9F12bvmdk:qViSC/gdcwVHJoim

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c

    • Size

      207KB

    • MD5

      1063b50e4283dd4a74e80ef4e9ab1e93

    • SHA1

      40bf547f2a7dcc107c02fbf15cc6f717d8042200

    • SHA256

      259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c

    • SHA512

      f4bd07f60ebdc1d9eca3741c6daabe094f1985f623b0c1b513849c8d99c6062039bb24e9ce64682b9561e9d1b716f922ef3398ff4ecbf32a84da0493785c5b4a

    • SSDEEP

      3072:eZzbmIis7CwOgdSoOxrlDPlwVzoIkINXwcz5w9F12bvmdk:qViSC/gdcwVHJoim

    • 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

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks