Overview

overview

10

Static

static

7e5fcb0d77...22.exe

windows7-x64

10

7e5fcb0d77...22.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7e5fcb0d7778f748a3918378ed5db822

  • Size

    13.1MB

  • Sample

    220809-zyfjmsgbfp

  • MD5

    7e5fcb0d7778f748a3918378ed5db822

  • SHA1

    1706be828b80453959adba017e3f1026672b15d5

  • SHA256

    ae0a28272124703a2f7bb1690929e771c6a90e5dee9f7c614bb818aba41a41c7

  • SHA512

    7f0055c7db02e3a68ff9f0bb34040c65699fbdc7af7481ed9d2c41690360de3a3f774050d454b87bf39faa2176fdf56d83f203f8b1869c34c164055c6e5d6f2b

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      7e5fcb0d7778f748a3918378ed5db822

    • Size

      13.1MB

    • MD5

      7e5fcb0d7778f748a3918378ed5db822

    • SHA1

      1706be828b80453959adba017e3f1026672b15d5

    • SHA256

      ae0a28272124703a2f7bb1690929e771c6a90e5dee9f7c614bb818aba41a41c7

    • SHA512

      7f0055c7db02e3a68ff9f0bb34040c65699fbdc7af7481ed9d2c41690360de3a3f774050d454b87bf39faa2176fdf56d83f203f8b1869c34c164055c6e5d6f2b

    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks