Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    file.exe

  • Size

    259KB

  • Sample

    230327-j29nwscd78

  • MD5

    0ba4447a07a7c2c63cfe7aa69173ab6a

  • SHA1

    00273726672ded3869e15e24e09ee1053f547f0f

  • SHA256

    7c3bd96cd755ebe1e700c2b578cf83e88d10ce2529213c5bccf2def62b5a6474

  • SHA512

    0b169df73780dfe8d3e5b4c1c298e51e2cab756482a6f6cb439ddae6e66f4c918daa8aa3f059820b2639651e59bc766dc506df654d218d995e843b5f343ebd4d

  • SSDEEP

    3072:cypgerGfQDgLG96SFeQYWxK14YrLLKzxR/yrhIfD1lBqlb2PDFgvRs5xbBo2+:1xDgLzSHYKg4Yr0bTlm6Zto

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      259KB

    • MD5

      0ba4447a07a7c2c63cfe7aa69173ab6a

    • SHA1

      00273726672ded3869e15e24e09ee1053f547f0f

    • SHA256

      7c3bd96cd755ebe1e700c2b578cf83e88d10ce2529213c5bccf2def62b5a6474

    • SHA512

      0b169df73780dfe8d3e5b4c1c298e51e2cab756482a6f6cb439ddae6e66f4c918daa8aa3f059820b2639651e59bc766dc506df654d218d995e843b5f343ebd4d

    • SSDEEP

      3072:cypgerGfQDgLG96SFeQYWxK14YrLLKzxR/yrhIfD1lBqlb2PDFgvRs5xbBo2+:1xDgLzSHYKg4Yr0bTlm6Zto

    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