Overview

overview

10

Static

static

deb1f44598...c9.exe

windows7-x64

10

deb1f44598...c9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    deb1f4459809c0f3d65beb7b7d3e78c9

  • Size

    10.3MB

  • Sample

    220809-zzcjdahhg4

  • MD5

    deb1f4459809c0f3d65beb7b7d3e78c9

  • SHA1

    8f630047a5ada490d8807daa45495f0d757f4e2f

  • SHA256

    00497a054321b4229b74779168c2d451c6df7e41b8016951c1c95ad9f2fd374a

  • SHA512

    53d4352cb5c5d1096822692ba1a4f4a6e64bd45c3530469d5e075118d7847b2de4a50230b8b494b26adbf3f04ce736f5531d1a0b0b26b0c01fe507fea7049db7

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      deb1f4459809c0f3d65beb7b7d3e78c9

    • Size

      10.3MB

    • MD5

      deb1f4459809c0f3d65beb7b7d3e78c9

    • SHA1

      8f630047a5ada490d8807daa45495f0d757f4e2f

    • SHA256

      00497a054321b4229b74779168c2d451c6df7e41b8016951c1c95ad9f2fd374a

    • SHA512

      53d4352cb5c5d1096822692ba1a4f4a6e64bd45c3530469d5e075118d7847b2de4a50230b8b494b26adbf3f04ce736f5531d1a0b0b26b0c01fe507fea7049db7

    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