General
Target

36dd37703b6b84eb31184299be5935fd79e46b4c7b9a3f7c2bbdd73a9bedb701

Size

108KB

Sample

220626-bljtjaddc7

Score
10/10
MD5

3a7c9b7345930efda1b033b5ffd6888c

SHA1

cce9d9ece4bbf8666894d3d52ba3bcf243140a12

SHA256

36dd37703b6b84eb31184299be5935fd79e46b4c7b9a3f7c2bbdd73a9bedb701

SHA512

8b76eba6a981f493b1afac3a39d62f2c91eb1919dcb439f9d9b6aa86bce20e8c66c7a91f33d0f64244cde8c974a5cffe70384320db388b71d268f9e3938d0d9a

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets
Target

36dd37703b6b84eb31184299be5935fd79e46b4c7b9a3f7c2bbdd73a9bedb701

MD5

3a7c9b7345930efda1b033b5ffd6888c

Filesize

108KB

Score
10/10
SHA1

cce9d9ece4bbf8666894d3d52ba3bcf243140a12

SHA256

36dd37703b6b84eb31184299be5935fd79e46b4c7b9a3f7c2bbdd73a9bedb701

SHA512

8b76eba6a981f493b1afac3a39d62f2c91eb1919dcb439f9d9b6aa86bce20e8c66c7a91f33d0f64244cde8c974a5cffe70384320db388b71d268f9e3938d0d9a

Tags

Signatures

  • Tofsee

    Description

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

    Tags

  • 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
        Defense Evasion
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Tasks

                    static1

                    Score
                    N/A

                    behavioral1

                    Score
                    10/10

                    behavioral2

                    Score
                    10/10