General

  • Target

    97d5cb72674f0341389623a8f9c3882384426934b35b61b3200202fca3c6b919

  • Size

    154KB

  • Sample

    210926-xhdc8sfbdp

  • MD5

    51f7971fc5cc36e55585bae323640fe1

  • SHA1

    fe0eefd15974b53145898fe83b6787e48d4da8fb

  • SHA256

    97d5cb72674f0341389623a8f9c3882384426934b35b61b3200202fca3c6b919

  • SHA512

    664a04359b37e70d2230fffd6682271c3e48626227ad3ad5086ab6916ebba5e880de0c60a5ade47ed22c1a831a44c6a4a5d0211ee365fb522ac378d05c82e9c7

Malware Config

Targets

    • Target

      97d5cb72674f0341389623a8f9c3882384426934b35b61b3200202fca3c6b919

    • Size

      154KB

    • MD5

      51f7971fc5cc36e55585bae323640fe1

    • SHA1

      fe0eefd15974b53145898fe83b6787e48d4da8fb

    • SHA256

      97d5cb72674f0341389623a8f9c3882384426934b35b61b3200202fca3c6b919

    • SHA512

      664a04359b37e70d2230fffd6682271c3e48626227ad3ad5086ab6916ebba5e880de0c60a5ade47ed22c1a831a44c6a4a5d0211ee365fb522ac378d05c82e9c7

    • Tofsee

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

    • Windows security bypass

    • suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

      suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

    • xmrig

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Tasks