Overview

overview

10

Static

static

ctfmon.exe

windows7_x64

10

ctfmon.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    ctfmon.exe

  • Size

    300.0MB

  • Sample

    220630-sc1jcscacn

  • MD5

    eb62cecfbe36eeaeab3ea25a65967f9d

  • SHA1

    2a4eb3fc914111cf67939b28ae5833d16b3315db

  • SHA256

    936f58b1813856c65f6206acce0b9711d4ac41598b5492b6951352ac04cc3c62

  • SHA512

    d1239c3a0dc408ba4d7b605adc897bdd183b7b4085847559ba4586a3978c34f414176e680d325b8e50386b5d4366ff3f0edeeab7f04b139e8e6c5defbc87a7db

Score
10/10
asyncratnigatexpersistencerat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Nigatex

C2

nigatex.ml:25565

Mutex

huieqwgehqweqduia

Attributes
  • delay

    1

  • install

    false

  • install_file

    MpCopyAccelerator.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      ctfmon.exe

    • Size

      300.0MB

    • MD5

      eb62cecfbe36eeaeab3ea25a65967f9d

    • SHA1

      2a4eb3fc914111cf67939b28ae5833d16b3315db

    • SHA256

      936f58b1813856c65f6206acce0b9711d4ac41598b5492b6951352ac04cc3c62

    • SHA512

      d1239c3a0dc408ba4d7b605adc897bdd183b7b4085847559ba4586a3978c34f414176e680d325b8e50386b5d4366ff3f0edeeab7f04b139e8e6c5defbc87a7db

    Score
    10/10
    asyncratnigatexratpersistence

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Scripting

1
T1064

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