General
Target

fe70a88244756a21fa321b27001ea72d524003de90356fa9797ce218c794ff5d

Size

11MB

Sample

220630-yhcx5saeck

Score
10/10
MD5

734c2faea43e5b51f8261cd2873bb940

SHA1

3bb1bf5d3658bd1975fa35859d1ba35641735097

SHA256

fe70a88244756a21fa321b27001ea72d524003de90356fa9797ce218c794ff5d

SHA512

b77d4b10a09db22cb01f40fb1268ab05a335be58f6848b5978adfe25a8042ee73a9b1279aaffcbce24ba47232344c074787581b9bf47d09a70906dd55fcd173b

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets
Target

fe70a88244756a21fa321b27001ea72d524003de90356fa9797ce218c794ff5d

MD5

734c2faea43e5b51f8261cd2873bb940

Filesize

11MB

Score
10/10
SHA1

3bb1bf5d3658bd1975fa35859d1ba35641735097

SHA256

fe70a88244756a21fa321b27001ea72d524003de90356fa9797ce218c794ff5d

SHA512

b77d4b10a09db22cb01f40fb1268ab05a335be58f6848b5978adfe25a8042ee73a9b1279aaffcbce24ba47232344c074787581b9bf47d09a70906dd55fcd173b

Tags

Signatures

  • Tofsee

    Description

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

    Tags

  • Windows security bypass

    Tags

    TTPs

    Disabling Security ToolsModify Registry
  • Creates new service(s)

    Tags

    TTPs

    New Service
  • Executes dropped EXE

  • Modifies Windows Firewall

    Tags

    TTPs

    Modify Existing Service
  • Sets service image path in registry

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks computer location settings

    Description

    Looks up country code configured in the registry, likely geofence.

    TTPs

    Query RegistrySystem Information Discovery
  • Deletes itself

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Tasks

                    static1

                    Score
                    N/A

                    behavioral1

                    Score
                    10/10

                    behavioral2

                    Score
                    10/10