Overview

overview

10

Static

static

328c2e0260...2d.exe

windows7-x64

10

328c2e0260...2d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    328c2e026064a17552df265a9ced731f2cd2040ea302437819e4f2bccf410b2d.exe

  • Size

    185KB

  • Sample

    221203-gzedvsbd36

  • MD5

    e116b192ea993d3f4f287b441f6ed470

  • SHA1

    e9fed4db6ac75b1bc6988a7b48290f85fa160b46

  • SHA256

    328c2e026064a17552df265a9ced731f2cd2040ea302437819e4f2bccf410b2d

  • SHA512

    ef9b5c6eb7b9c826bb0124a3bf5b12549355a4d4ca202bd3fa6c5ef147a4d0fffa3a95d7ad477bb54f4a8424dc55da2f955eb92c243a64110eb742d21c429c6d

  • SSDEEP

    3072:tyqMvI7N+xdHYtGMn5aSEEpLgk2QeFJpPFCMmrdEWq4mfKRw+6NEn:rM5xdHYt8qskpeFJtF9W/mf+MNE

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      328c2e026064a17552df265a9ced731f2cd2040ea302437819e4f2bccf410b2d.exe

    • Size

      185KB

    • MD5

      e116b192ea993d3f4f287b441f6ed470

    • SHA1

      e9fed4db6ac75b1bc6988a7b48290f85fa160b46

    • SHA256

      328c2e026064a17552df265a9ced731f2cd2040ea302437819e4f2bccf410b2d

    • SHA512

      ef9b5c6eb7b9c826bb0124a3bf5b12549355a4d4ca202bd3fa6c5ef147a4d0fffa3a95d7ad477bb54f4a8424dc55da2f955eb92c243a64110eb742d21c429c6d

    • SSDEEP

      3072:tyqMvI7N+xdHYtGMn5aSEEpLgk2QeFJpPFCMmrdEWq4mfKRw+6NEn:rM5xdHYt8qskpeFJtF9W/mf+MNE

    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