Overview

overview

10

Static

static

xtllixwk.exe

windows7_x64

10

xtllixwk.exe

windows10_x64

10

Sharing

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General

  • Target

    xtllixwk.exe

  • Size

    12.6MB

  • Sample

    210215-2d1yeny4be

  • MD5

    a65502084b6d09ee1219201d47f46c20

  • SHA1

    6855bfa842237d60e76691ce5f59865a045e7e08

  • SHA256

    8e9077111645da006312e59519b5080e63a9ab0ef7cf686894bfa72279970a33

  • SHA512

    4a5c53deea9a78aec63de61512aa1cdf101ab8d68dcb0c478d8106e8c6fbfd1c20eb80b0c326a4544a747cf120770198d3f9ba0c6f99fd81534d689c778cc34e

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Targets

    • Target

      xtllixwk.exe

    • Size

      12.6MB

    • MD5

      a65502084b6d09ee1219201d47f46c20

    • SHA1

      6855bfa842237d60e76691ce5f59865a045e7e08

    • SHA256

      8e9077111645da006312e59519b5080e63a9ab0ef7cf686894bfa72279970a33

    • SHA512

      4a5c53deea9a78aec63de61512aa1cdf101ab8d68dcb0c478d8106e8c6fbfd1c20eb80b0c326a4544a747cf120770198d3f9ba0c6f99fd81534d689c778cc34e

    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

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Deletes itself

    • Drops file in System32 directory

    • Enumerates physical storage devices

      Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    • 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

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks