Overview

overview

10

Static

static

10

a286230e15...d1.exe

windows10-2004-x64

10

a286230e15...d1.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    a286230e158f8dac250e25ffeb933e404a129edbf4d15ac42ee270c4693455d1.exe
  • Size 43KB
  • Sample260421-ya4e5abs9q
  • SHA256 a286230e158f8dac250e25ffeb933e404a129edbf4d15ac42ee270c4693455d1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
asyncratcredential_accessdefense_evasiondiscoverydropperexecutionimpactpersistenceransomwareratstealer

Malware Config

Targets

    • Target
      a286230e158f8dac250e25ffeb933e404a129edbf4d15ac42ee270c4693455d1.exe
    • Size 43KB
    • SHA256 a286230e158f8dac250e25ffeb933e404a129edbf4d15ac42ee270c4693455d1
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    credential_accessdefense_evasiondiscoverydropperexecutionasyncratimpactpersistenceransomwareratstealer

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

      execution

    • Download via BitsAdmin

      dropper

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Windows Management Instrumentation

1
T1047

Persistence

BITS Jobs

1
T1197

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

BITS Jobs

1
T1197

File and Directory Permissions Modification

1
T1222

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Windows Credential Manager

1
T1555.004

Discovery

Browser Information Discovery

1
T1217

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

Inhibit System Recovery

1
T1490

Tasks