General
Target

2f3c1c58812e47633e9bd3d35df834cfcdfc8ae143218767aa4a17910af36172

Size

176KB

Sample

220621-24f4gaedej

Score
10/10
MD5

69149d4fbc2666bd9beb761b3337e6fe

SHA1

f27c17a5e9b3d77a6049637b54ff9d56c4b91785

SHA256

2f3c1c58812e47633e9bd3d35df834cfcdfc8ae143218767aa4a17910af36172

SHA512

833db5449a8f6333ff13127334e19fc105a6a473552f395d39101ab19e7e0c094f514459294f41b1ee4c7388ad120b31484ebbeeefa8bb6ebe13fc488a814e72

Malware Config

Extracted

Family

tofsee

C2

103.232.222.57

111.121.193.242

123.249.0.22

Targets
Target

2f3c1c58812e47633e9bd3d35df834cfcdfc8ae143218767aa4a17910af36172

MD5

69149d4fbc2666bd9beb761b3337e6fe

Filesize

176KB

Score
10/10
SHA1

f27c17a5e9b3d77a6049637b54ff9d56c4b91785

SHA256

2f3c1c58812e47633e9bd3d35df834cfcdfc8ae143218767aa4a17910af36172

SHA512

833db5449a8f6333ff13127334e19fc105a6a473552f395d39101ab19e7e0c094f514459294f41b1ee4c7388ad120b31484ebbeeefa8bb6ebe13fc488a814e72

Tags

Signatures

  • Tofsee

    Description

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

    Tags

  • Executes dropped EXE

  • Checks computer location settings

    Description

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

    TTPs

    Query RegistrySystem Information Discovery
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Drops file in System32 directory

  • 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
                    1/10

                    behavioral2

                    Score
                    10/10