Overview

overview

10

Static

static

7

System.exe

windows10-1703-x64

10

System.exe

windows7-x64

10

System.exe

windows10-1703-x64

10

System.exe

windows10-2004-x64

System.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    System.exe
  • Size 3.4MB
  • Sample240531-eskaesff93
  • SHA256 92ab9ed68950db61024eb5c5180f0019281a3bec96cd5a2f7305f450de064d4f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratstormkittydefaultcollectiondiscoveryevasionratspywarestealerthemidatrojan

Malware Config

Extracted

Family

  • asyncrat

Version

  • Venom RAT + HVNC + Stealer + Grabber v6.5

Botnet

  • Default

Mutex

  • umldzqgmsvrmiibib

Attributes
  • c2_url_file

    https://paste.fo/raw/53957c5e1888

  • delay

    1

  • install

    true

  • install_file

    Registry.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      System.exe
    • Size 3.4MB
    • SHA256 92ab9ed68950db61024eb5c5180f0019281a3bec96cd5a2f7305f450de064d4f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    asyncratstormkittydefaultdiscoveryevasionratspywarestealerthemidatrojancollection

    • AsyncRat

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

      ratasyncrat

    • StormKitty

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

      stealerstormkitty

    • StormKitty payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Accesses Microsoft Outlook profiles

      collection

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • 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 NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2behavioral3behavioral4behavioral5

MITRE ATT&CK Enterprise v15

Tasks