General

  • Target

    0556b0bdb422e27bbf283d32e6aaff7f1088686afb9da8dac40e5f35b8f14924

  • Size

    14.9MB

  • Sample

    211022-pwxd9scecj

  • MD5

    d317ee7da68c7ade86431c3deea6b632

  • SHA1

    cc2af8bde9b1fb9ba38453f9def071c29dcda073

  • SHA256

    0556b0bdb422e27bbf283d32e6aaff7f1088686afb9da8dac40e5f35b8f14924

  • SHA512

    369c2429a6fbf5c02dcd18da04ce8f380e80eddb495ef6780fbabf06ef001bc9ba8ef2430e435cb2c3b4953e8455a51a1d9c9c55982153b6f1050d157c4da8fc

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      0556b0bdb422e27bbf283d32e6aaff7f1088686afb9da8dac40e5f35b8f14924

    • Size

      14.9MB

    • MD5

      d317ee7da68c7ade86431c3deea6b632

    • SHA1

      cc2af8bde9b1fb9ba38453f9def071c29dcda073

    • SHA256

      0556b0bdb422e27bbf283d32e6aaff7f1088686afb9da8dac40e5f35b8f14924

    • SHA512

      369c2429a6fbf5c02dcd18da04ce8f380e80eddb495ef6780fbabf06ef001bc9ba8ef2430e435cb2c3b4953e8455a51a1d9c9c55982153b6f1050d157c4da8fc

    • 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