Overview

overview

10

Static

static

314f4da13b...36.exe

windows7_x64

10

314f4da13b...36.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    314f4da13b3a43ce3eddacf01d850f36.exe

  • Size

    307KB

  • Sample

    220605-kjqczadfaq

  • MD5

    314f4da13b3a43ce3eddacf01d850f36

  • SHA1

    5f70d85a6bf37e5106a099040c658a77e7003b16

  • SHA256

    1cfe393c560cf7e17905bb2573ece065ffd587ffe3ec5efbbb43b326a39e3d51

  • SHA512

    2336c9af1ad364435ad7b5666727d60092f03a7ca15d4e655ffad5837caf06639286f9a3edc5cfbfa9b4c79e7cd4c6f97f8fe136e98e45250e90a96e3a714014

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      314f4da13b3a43ce3eddacf01d850f36.exe

    • Size

      307KB

    • MD5

      314f4da13b3a43ce3eddacf01d850f36

    • SHA1

      5f70d85a6bf37e5106a099040c658a77e7003b16

    • SHA256

      1cfe393c560cf7e17905bb2573ece065ffd587ffe3ec5efbbb43b326a39e3d51

    • SHA512

      2336c9af1ad364435ad7b5666727d60092f03a7ca15d4e655ffad5837caf06639286f9a3edc5cfbfa9b4c79e7cd4c6f97f8fe136e98e45250e90a96e3a714014

    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

    • Checks computer location settings

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

    • 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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks