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General

  • Target

    c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9

  • Size

    240KB

  • Sample

    240610-vcvn8athjp

  • MD5

    a89a288b919ddd651b732bb9bd007036

  • SHA1

    6c92fac6954dfe04ce6308557fda191bdb1dadbf

  • SHA256

    c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9

  • SHA512

    cce4f2e6c3c8953226005d860b2413abb5ad6cd89b4fda244725147ac38cee0ea6002100a406c45d9729a66107acaf662b6b0fba68816e5823424ff0776f4809

  • SSDEEP

    3072:47WLco6DTm+7AOxmcacr5CV+S5ALQ4+EDUZwW:4SLco6vF7Jscac7d+Ex

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9

    • Size

      240KB

    • MD5

      a89a288b919ddd651b732bb9bd007036

    • SHA1

      6c92fac6954dfe04ce6308557fda191bdb1dadbf

    • SHA256

      c2f295f43bcac36547da04ac4c01d449d75952c9da75f22b0b63a3130948f1e9

    • SHA512

      cce4f2e6c3c8953226005d860b2413abb5ad6cd89b4fda244725147ac38cee0ea6002100a406c45d9729a66107acaf662b6b0fba68816e5823424ff0776f4809

    • SSDEEP

      3072:47WLco6DTm+7AOxmcacr5CV+S5ALQ4+EDUZwW:4SLco6vF7Jscac7d+Ex

    • Tofsee

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

    • Windows security bypass

    • 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