Overview

overview

10

Static

static

b9879304ed...12.exe

windows7_x64

10

b9879304ed...12.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    b9879304edc64327afa0ddcdb34499acc5c75777e1643aeaf28b394f8e9d7b12

  • Size

    768KB

  • Sample

    220708-rkrezsfde9

  • MD5

    646605c6d10e5e69bd1e71e9697b44a2

  • SHA1

    94173c87c6ef63003a78ecff929d32400b150a12

  • SHA256

    b9879304edc64327afa0ddcdb34499acc5c75777e1643aeaf28b394f8e9d7b12

  • SHA512

    7ff7c5e8202eb8975751c5b504ae399752cb9c6d91a9c27fd28e8dde00129bdd314af426b10621627b193991523747a080842a1cb446434ca3c7f4e45c3ec23e

Score
10/10
asyncratsigortapersistencerat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Sigorta

C2

91.134.150.151:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    windows.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      b9879304edc64327afa0ddcdb34499acc5c75777e1643aeaf28b394f8e9d7b12

    • Size

      768KB

    • MD5

      646605c6d10e5e69bd1e71e9697b44a2

    • SHA1

      94173c87c6ef63003a78ecff929d32400b150a12

    • SHA256

      b9879304edc64327afa0ddcdb34499acc5c75777e1643aeaf28b394f8e9d7b12

    • SHA512

      7ff7c5e8202eb8975751c5b504ae399752cb9c6d91a9c27fd28e8dde00129bdd314af426b10621627b193991523747a080842a1cb446434ca3c7f4e45c3ec23e

    Score
    10/10
    asyncratsigortapersistencerat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Modifies WinLogon for persistence

      persistence

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

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