General

  • Target

    9085e6327177bb47cf43a8d8ed0c24fcfd50cde4199c5130f2b97b2508e9aabc.exe

  • Size

    14.4MB

  • Sample

    240707-bll9nazaqm

  • MD5

    1082572a44d4c41214a3c38dcd8289f9

  • SHA1

    d1e83fbdc0bfaa92334eb043e3f37bbe1104cd68

  • SHA256

    9085e6327177bb47cf43a8d8ed0c24fcfd50cde4199c5130f2b97b2508e9aabc

  • SHA512

    364bea1a64fa1b0248692ac6239a10f4a38d52a93dcc71502220804061a3c0a2e6d4e0dce45a563e372829998c9cf3a2f44a6c047ec830e9a26eef3510b014d2

  • SSDEEP

    393216:iXMxStQvFIeTiQvMipcK5x00D1lR/ggb/Dt:oXU1TzvMInx0QV/D

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6082381502:AAEEe5dVvSMdEf-_fKUh7iRqcNun3Q5DzxM/sendMessage?chat_id=5795480469

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      9085e6327177bb47cf43a8d8ed0c24fcfd50cde4199c5130f2b97b2508e9aabc.exe

    • Size

      14.4MB

    • MD5

      1082572a44d4c41214a3c38dcd8289f9

    • SHA1

      d1e83fbdc0bfaa92334eb043e3f37bbe1104cd68

    • SHA256

      9085e6327177bb47cf43a8d8ed0c24fcfd50cde4199c5130f2b97b2508e9aabc

    • SHA512

      364bea1a64fa1b0248692ac6239a10f4a38d52a93dcc71502220804061a3c0a2e6d4e0dce45a563e372829998c9cf3a2f44a6c047ec830e9a26eef3510b014d2

    • SSDEEP

      393216:iXMxStQvFIeTiQvMipcK5x00D1lR/ggb/Dt:oXU1TzvMInx0QV/D

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Async RAT payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks