Overview

overview

10

Static

static

7a5d072a81...88.exe

windows7-x64

10

7a5d072a81...88.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7a5d072a81edb0fa296dd1e1329915d00b1fd891ccbacac75f382b753951e888.exe

  • Size

    192KB

  • Sample

    221203-z6csqafa96

  • MD5

    911647ce6826d410a80da55024518d9f

  • SHA1

    a49ce6f4e31271bbe9a143fbb9070e1762af26dd

  • SHA256

    7a5d072a81edb0fa296dd1e1329915d00b1fd891ccbacac75f382b753951e888

  • SHA512

    60aa1d051c3b09c57bf925566f78b848be8ec2d5aa18d2f251ed0a53a929d33af26a384021c8b5251c21a645a1c2b9f3cd44facfa45062d7975a7729ef40eef3

  • SSDEEP

    3072:4NbwXahIq1sQXuGIJ5b+vOWU/zRpoPY6oGd7CDwpjRs9E3AZxpR/rNY:4/1sQXuGODWyRpoPYoeDpvpZN

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      7a5d072a81edb0fa296dd1e1329915d00b1fd891ccbacac75f382b753951e888.exe

    • Size

      192KB

    • MD5

      911647ce6826d410a80da55024518d9f

    • SHA1

      a49ce6f4e31271bbe9a143fbb9070e1762af26dd

    • SHA256

      7a5d072a81edb0fa296dd1e1329915d00b1fd891ccbacac75f382b753951e888

    • SHA512

      60aa1d051c3b09c57bf925566f78b848be8ec2d5aa18d2f251ed0a53a929d33af26a384021c8b5251c21a645a1c2b9f3cd44facfa45062d7975a7729ef40eef3

    • SSDEEP

      3072:4NbwXahIq1sQXuGIJ5b+vOWU/zRpoPY6oGd7CDwpjRs9E3AZxpR/rNY:4/1sQXuGODWyRpoPYoeDpvpZN

    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