Overview

overview

10

Static

static

fd7d9c3df1...e0.exe

windows7_x64

10

fd7d9c3df1...e0.exe

windows10_x64

10

Sharing

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General

  • Target

    fd7d9c3df1ac408ba7bde3392d9f1b34a94ba952d680725597a3adf5c4a88de0

  • Size

    13.4MB

  • Sample

    211016-n1akmabhh2

  • MD5

    15c52bad89be4eaf34f250d7a8e1712e

  • SHA1

    a5b1b3ca452d72b7b3f3e816cc8f3fecbb67fed7

  • SHA256

    fd7d9c3df1ac408ba7bde3392d9f1b34a94ba952d680725597a3adf5c4a88de0

  • SHA512

    abc6be78360d69d39ff0bebc0b9e7dc8e72e0e62e6521cd1272074f65cf55ceb35efe297c682fae8cc17c468540250c14afb6e2f0727e61cc9f2018b7b157134

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      fd7d9c3df1ac408ba7bde3392d9f1b34a94ba952d680725597a3adf5c4a88de0

    • Size

      13.4MB

    • MD5

      15c52bad89be4eaf34f250d7a8e1712e

    • SHA1

      a5b1b3ca452d72b7b3f3e816cc8f3fecbb67fed7

    • SHA256

      fd7d9c3df1ac408ba7bde3392d9f1b34a94ba952d680725597a3adf5c4a88de0

    • SHA512

      abc6be78360d69d39ff0bebc0b9e7dc8e72e0e62e6521cd1272074f65cf55ceb35efe297c682fae8cc17c468540250c14afb6e2f0727e61cc9f2018b7b157134

    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

    • 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