General
Target

e589ca07439b86d88a5820b00535a1fac141bd022c904fff4b80c914d5d67862

Size

313KB

Sample

220620-qs46dafga9

Score
10/10
MD5

8567240f275baaeb316c12f0cab580a6

SHA1

d2f07a8889c0e038d3b95dc434faa36b93114698

SHA256

e589ca07439b86d88a5820b00535a1fac141bd022c904fff4b80c914d5d67862

SHA512

b7daf73bb899dc5b27a0face5f6b02d918b13052e9b1e104243681e85023198adcfccca090a9ba77cf3d966ccb84f0b70400af4f1bd4474b9b126f39a00f0406

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets
Target

e589ca07439b86d88a5820b00535a1fac141bd022c904fff4b80c914d5d67862

MD5

8567240f275baaeb316c12f0cab580a6

Filesize

313KB

Score
10/10
SHA1

d2f07a8889c0e038d3b95dc434faa36b93114698

SHA256

e589ca07439b86d88a5820b00535a1fac141bd022c904fff4b80c914d5d67862

SHA512

b7daf73bb899dc5b27a0face5f6b02d918b13052e9b1e104243681e85023198adcfccca090a9ba77cf3d966ccb84f0b70400af4f1bd4474b9b126f39a00f0406

Tags

Signatures

  • Tofsee

    Description

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

    Tags

  • xmrig

    Description

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

    Tags

  • XMRig Miner Payload

    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
  • 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