General
Target

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455

Size

104KB

Sample

220627-aegvxsfgdm

Score
10/10
MD5

67260c5c5215244985a54f8c8092bc8d

SHA1

5d8c9edaee2219781a8488f21fdb1e193b8dc8a6

SHA256

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455

SHA512

f31c7f275b42366eed39d5517be6a406645929c92bc6a471a1ebbc83ed1318c0c23982dca33b3351fd2088a335b213ef3db45fa6ba025c00b13a5427ae13e2df

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets
Target

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455

MD5

67260c5c5215244985a54f8c8092bc8d

Filesize

104KB

Score
10/10
SHA1

5d8c9edaee2219781a8488f21fdb1e193b8dc8a6

SHA256

3576d8e57c835f522ebaa917700dbabecc817dcdc7b4d21d2b155e7fe4977455

SHA512

f31c7f275b42366eed39d5517be6a406645929c92bc6a471a1ebbc83ed1318c0c23982dca33b3351fd2088a335b213ef3db45fa6ba025c00b13a5427ae13e2df

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