General

  • Target

    26aba179493290e811f5447e07103f9dec98c7c2c059b4eb3069603af7cc5287

  • Size

    230KB

  • Sample

    221025-gppf3sbfhm

  • MD5

    d1f888e2cbe41f022cc89906bea3b250

  • SHA1

    1cd3f93399297ca8c55508b04e1d680d3f05c9f8

  • SHA256

    26aba179493290e811f5447e07103f9dec98c7c2c059b4eb3069603af7cc5287

  • SHA512

    3946a54165237f6eeafb7c2b690546ad71a2427bd2aa0662ca7835585308aab49d2d082e6dbdeb9f64830bc96617489272ce345cd310873d9d67f5e8276f49a3

  • SSDEEP

    3072:SXsiVLljKTY5tBHaiXUifYro1VknS7/sngc3jduwK9XQIz2tijl:SjVLJKTcAinfW54TXq8l

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      26aba179493290e811f5447e07103f9dec98c7c2c059b4eb3069603af7cc5287

    • Size

      230KB

    • MD5

      d1f888e2cbe41f022cc89906bea3b250

    • SHA1

      1cd3f93399297ca8c55508b04e1d680d3f05c9f8

    • SHA256

      26aba179493290e811f5447e07103f9dec98c7c2c059b4eb3069603af7cc5287

    • SHA512

      3946a54165237f6eeafb7c2b690546ad71a2427bd2aa0662ca7835585308aab49d2d082e6dbdeb9f64830bc96617489272ce345cd310873d9d67f5e8276f49a3

    • SSDEEP

      3072:SXsiVLljKTY5tBHaiXUifYro1VknS7/sngc3jduwK9XQIz2tijl:SjVLJKTcAinfW54TXq8l

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks