Resubmissions

09/09/2021, 17:41

210909-v9lgtabfhq10

09/09/2021, 04:26

210909-e21nrsfee310

08/09/2021, 21:37

210908-1gnpcsfbc910

08/09/2021, 21:29

210908-1bx1vafbc510

08/09/2021, 13:52

210908-q6fd6shgdj10

07/09/2021, 18:07

210907-wqa3eagcgr10

General

  • Target
    setup_x86_x64_install.exe
  • Size 2.9MB
  • Sample210907-wqa3eagcgr
  • SHA256 90aa6a7c770f2c0f49596731c80fda7d044802dea9e905ff999b39cda5428407
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://shellloader.com/welcome

Extracted

Family
  • vidar

Version
  • 40.5

Botnet
  • 706

C2
  • https://gheorghip.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://varmisende.com/upload/

  • http://fernandomayol.com/upload/

  • http://nextlytm.com/upload/

  • http://people4jan.com/upload/

  • http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Extracted

Family
  • vidar

Version
  • 40.5

Botnet
  • 916

C2
  • https://gheorghip.tumblr.com/

Attributes
  • profile_id

    916

Extracted

Family
  • redline

Botnet
  • Jayson

C2
  • 95.181.172.207:56915

Targets

    • Target
      setup_x86_x64_install.exe
    • Size 2.9MB
    • SHA256 90aa6a7c770f2c0f49596731c80fda7d044802dea9e905ff999b39cda5428407
    • MD5 SHA1 SHA512
    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Amadey CnC Check-In

      suricata: ET MALWARE Amadey CnC Check-In

    • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

      suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    • suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

      suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

    • suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

      suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Win32/Tnega Activity (GET)

      suricata: ET MALWARE Win32/Tnega Activity (GET)

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks