Overview

overview

10

Static

static

0074b84153...71.exe

windows7-x64

10

0074b84153...71.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    0074b841539d67f18a2bbf8d114bae71

  • Size

    11.5MB

  • Sample

    220809-zzezhagcbk

  • MD5

    0074b841539d67f18a2bbf8d114bae71

  • SHA1

    1198aa16a95b16380130d9d03e53baf46311c870

  • SHA256

    0a600484ac90b65ad9ead8ec724c55eeb7a5113f15be1cf29e7fc595c856ecc3

  • SHA512

    53a72378a455d64e5ea61f2305fff2051a6dfac35e236e3cacd4505b004e2a8c5bdda3970f0e2cdfe4fba586406e76afaf4c99cb69cc97da0d18a4d61cf94923

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Targets

    • Target

      0074b841539d67f18a2bbf8d114bae71

    • Size

      11.5MB

    • MD5

      0074b841539d67f18a2bbf8d114bae71

    • SHA1

      1198aa16a95b16380130d9d03e53baf46311c870

    • SHA256

      0a600484ac90b65ad9ead8ec724c55eeb7a5113f15be1cf29e7fc595c856ecc3

    • SHA512

      53a72378a455d64e5ea61f2305fff2051a6dfac35e236e3cacd4505b004e2a8c5bdda3970f0e2cdfe4fba586406e76afaf4c99cb69cc97da0d18a4d61cf94923

    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