General
Target

39e2b92059aea92f0cef66384347db789668df9ba87067a21060b6fdf7da7bc9

Size

312KB

Sample

220625-jg1v9abeem

Score
10/10
MD5

469c2f23c85976e2d7a79c013b87121b

SHA1

a98f1b95299a2546aca7e959b9af97eed341a01b

SHA256

39e2b92059aea92f0cef66384347db789668df9ba87067a21060b6fdf7da7bc9

SHA512

1ef5fdeb5f0fd3872d351c93c661fdebc504cec452ff9e00ab3abc7a84aea0be9ba3d2de52e7c3c900b67b55d95c2422d0cdc2ed16ada940a4f662ac884559c9

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets
Target

39e2b92059aea92f0cef66384347db789668df9ba87067a21060b6fdf7da7bc9

MD5

469c2f23c85976e2d7a79c013b87121b

Filesize

312KB

Score
10/10
SHA1

a98f1b95299a2546aca7e959b9af97eed341a01b

SHA256

39e2b92059aea92f0cef66384347db789668df9ba87067a21060b6fdf7da7bc9

SHA512

1ef5fdeb5f0fd3872d351c93c661fdebc504cec452ff9e00ab3abc7a84aea0be9ba3d2de52e7c3c900b67b55d95c2422d0cdc2ed16ada940a4f662ac884559c9

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