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General

  • Target

    NEAS.d15e72bad1966732249eb9f860d6dcaad2db09541ad67de8eee39febc706aa31.exe

  • Size

    259KB

  • Sample

    231107-gaxh5sdg48

  • MD5

    2a1390eb5563d733832c473f1109e872

  • SHA1

    44429ef9a32e8ce931eeb541a3863ed6f9727ccb

  • SHA256

    d15e72bad1966732249eb9f860d6dcaad2db09541ad67de8eee39febc706aa31

  • SHA512

    5ac6fcbd42942d7656c651fab7432a0942570afc5068e96e6a7c41a0b504059605052eab306193f686199c1bf739a2af0982bf480b995e55b9e116abd6c8b4e2

  • SSDEEP

    3072:GVXQ37fLJYJqgU5AoFCE+MBVaXAlXxDAVh5lRIxEnU:OQLfL2k7xCE+U6exDAfRq

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      NEAS.d15e72bad1966732249eb9f860d6dcaad2db09541ad67de8eee39febc706aa31.exe

    • Size

      259KB

    • MD5

      2a1390eb5563d733832c473f1109e872

    • SHA1

      44429ef9a32e8ce931eeb541a3863ed6f9727ccb

    • SHA256

      d15e72bad1966732249eb9f860d6dcaad2db09541ad67de8eee39febc706aa31

    • SHA512

      5ac6fcbd42942d7656c651fab7432a0942570afc5068e96e6a7c41a0b504059605052eab306193f686199c1bf739a2af0982bf480b995e55b9e116abd6c8b4e2

    • SSDEEP

      3072:GVXQ37fLJYJqgU5AoFCE+MBVaXAlXxDAVh5lRIxEnU:OQLfL2k7xCE+U6exDAfRq

    • 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