Resubmissions

06/01/2023, 00:39

230106-aztefsdg6910

06/01/2023, 00:31

230106-at5kjadg5910

General

  • Target
    SOA.exe
  • Size 1.1MB
  • Sample230106-aztefsdg69
  • SHA256 a0c77b9f372d94ae8cbc32b27d319491cb65001b12963bc68b96b8caaf10dfa0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

Botnet
  • Default

C2
  • ESCANOR2022.LINKPC.NET:6606

  • ESCANOR2022.LINKPC.NET:7707

  • ESCANOR2022.LINKPC.NET:8808

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    sqli.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      SOA.exe
    • Size 1.1MB
    • SHA256 a0c77b9f372d94ae8cbc32b27d319491cb65001b12963bc68b96b8caaf10dfa0
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • UAC bypass

    • Async RAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets service image path in registry

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks