Overview

overview

10

Static

static

1

8209beb6b6...6b.exe

windows7-x64

10

8209beb6b6...6b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bb56c80680e59414b05e9b99ac73e212.bin

  • Size

    164KB

  • Sample

    230328-cq9q7aac9w

  • MD5

    e973107d3d8596a3d29bdfb766081b3c

  • SHA1

    0060f723acb311dc6daae1d93eee4d22854da6ff

  • SHA256

    775d863918048f988d70be0cacf85b03e0afcc1233165fe8a669683dd44fce8d

  • SHA512

    0e67a3f2213307acdc0c1a59e41010f02cdf4712a79af947c49cdfa3d4d96874cd3d379e47ad67777fbec13d68fa2bbb5ee22dfa536c29622b3d744d757d5e83

  • SSDEEP

    3072:gVQI+3xMRbf5vuLcGYEoGLMNxV6GTXBOw2ulCz2NURICRyD0QyOkl:SQI+3Mbf5ecGdoGi6G8w2yWRIjD0ZOkl

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      8209beb6b60aadf651bb251bbd11d695092f01ff0577c7f7280b27ecd555b26b.exe

    • Size

      274KB

    • MD5

      bb56c80680e59414b05e9b99ac73e212

    • SHA1

      6c899c177242f54f5ace5d54e2a874a8e9366b56

    • SHA256

      8209beb6b60aadf651bb251bbd11d695092f01ff0577c7f7280b27ecd555b26b

    • SHA512

      e9f529f0fab9ea9f31e97a7337e6ffb4434795a6697164a1a819aabc136610e4e649942539fd3ed66d2c7556e9ca0f4cd12f16d45d9603774f2dad01d40b7158

    • SSDEEP

      3072:936aWhjzzu7BpaY8yuQiAbZ+sN3TcJqiwog2DGqnJYyyvs/zeFy/ULpNN4TJY:I3OBsY8XsywoDGCYbazh/eNN4T

    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • xmrig

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

      minerxmrig

    • XMRig Miner payload

      miner

    • Creates new service(s)

      persistence

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks