General

  • Target

    94cc784358c510c5d69a1ed931513d357e7f529996323e94a79be1a7e1393ed8

  • Size

    261KB

  • Sample

    221029-e2ascabbd8

  • MD5

    2ca69f7556a4b114d21e07b457aaeef3

  • SHA1

    366ad9d4d443f2803c5db3943a65bcbc904cf069

  • SHA256

    94cc784358c510c5d69a1ed931513d357e7f529996323e94a79be1a7e1393ed8

  • SHA512

    799d08283243fcfd2a26506f92bd69df8d745d74b375dd1e552ea20c011a418e2abcf45885968bbb4f4ce51e820c3591e49a727084f8a13c6b599fd7624ca109

  • SSDEEP

    6144:D2CBgSLdKKa1Tm0TRRCedy1QzJ8KMrnn8wc0L:D9BlZKKETmkRYv1QzJ8pkq

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      94cc784358c510c5d69a1ed931513d357e7f529996323e94a79be1a7e1393ed8

    • Size

      261KB

    • MD5

      2ca69f7556a4b114d21e07b457aaeef3

    • SHA1

      366ad9d4d443f2803c5db3943a65bcbc904cf069

    • SHA256

      94cc784358c510c5d69a1ed931513d357e7f529996323e94a79be1a7e1393ed8

    • SHA512

      799d08283243fcfd2a26506f92bd69df8d745d74b375dd1e552ea20c011a418e2abcf45885968bbb4f4ce51e820c3591e49a727084f8a13c6b599fd7624ca109

    • SSDEEP

      6144:D2CBgSLdKKa1Tm0TRRCedy1QzJ8KMrnn8wc0L:D9BlZKKETmkRYv1QzJ8pkq

    • 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