Overview

overview

10

Static

static

3

7732156700...db.exe

windows7-x64

10

7732156700...db.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    77321567006d0c5b5151682598cea932311e475cd6d015bdec055fcc59cf99db

  • Size

    12.6MB

  • Sample

    241230-ykjtgaylew

  • MD5

    dd179af0f87ef059908150114b34696c

  • SHA1

    b5f2f36cda105ff9f2869142ed016f8cfda43fdf

  • SHA256

    77321567006d0c5b5151682598cea932311e475cd6d015bdec055fcc59cf99db

  • SHA512

    4b4561eb56307074705de068d2034ea68ae2d145efbcab7bcd3f0da77a29c50905bf52a5378529a2299b0da1ae90961f2a475cdcbe6d2219d9ab6c5ea1ce3642

  • SSDEEP

    3072:EEtETlIcJpeAXch6LLTjjdQ4TdcUaOE9HBMwu6Z6O3Q7mKte711111111111111n:FEPX86zdndcfrHBgXfmKte

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      77321567006d0c5b5151682598cea932311e475cd6d015bdec055fcc59cf99db

    • Size

      12.6MB

    • MD5

      dd179af0f87ef059908150114b34696c

    • SHA1

      b5f2f36cda105ff9f2869142ed016f8cfda43fdf

    • SHA256

      77321567006d0c5b5151682598cea932311e475cd6d015bdec055fcc59cf99db

    • SHA512

      4b4561eb56307074705de068d2034ea68ae2d145efbcab7bcd3f0da77a29c50905bf52a5378529a2299b0da1ae90961f2a475cdcbe6d2219d9ab6c5ea1ce3642

    • SSDEEP

      3072:EEtETlIcJpeAXch6LLTjjdQ4TdcUaOE9HBMwu6Z6O3Q7mKte711111111111111n:FEPX86zdndcfrHBgXfmKte

    Score
    10/10
    tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

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

      trojantofsee

    • Tofsee family

      tofsee

    • Creates new service(s)

      persistenceexecution

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks