General

  • Target

    c8b5b3ada57ad45e2907330003c5e0df0f5881dad8e0bffe7a048972d9bc817c

  • Size

    6.4MB

  • Sample

    211220-rdv5labefm

  • MD5

    2a7590502178c2856cc9f14a257f2de8

  • SHA1

    76838b4358b814d5fb4048bc780356e95c612956

  • SHA256

    c8b5b3ada57ad45e2907330003c5e0df0f5881dad8e0bffe7a048972d9bc817c

  • SHA512

    39374d3957e277bb3ac67b40b5e07a43327256ba9d06efb86ab59e6ff1995c1bbd3e527a88527aaddf890b450e0c24e2325c2e9e3cce30e975867bfdb7e6c992

Malware Config

Extracted

Family

socelars

C2

http://www.biohazardgraphics.com/

Extracted

Family

smokeloader

Version

2020

C2

http://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

49.1

Botnet

915

C2

https://noc.social/@sergeev46

https://c.im/@sergeev47

Attributes
  • profile_id

    915

Targets

    • Target

      c8b5b3ada57ad45e2907330003c5e0df0f5881dad8e0bffe7a048972d9bc817c

    • Size

      6.4MB

    • MD5

      2a7590502178c2856cc9f14a257f2de8

    • SHA1

      76838b4358b814d5fb4048bc780356e95c612956

    • SHA256

      c8b5b3ada57ad45e2907330003c5e0df0f5881dad8e0bffe7a048972d9bc817c

    • SHA512

      39374d3957e277bb3ac67b40b5e07a43327256ba9d06efb86ab59e6ff1995c1bbd3e527a88527aaddf890b450e0c24e2325c2e9e3cce30e975867bfdb7e6c992

    • Modifies Windows Defender Real-time Protection settings

    • 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 GCleaner Downloader Activity M5

      suricata: ET MALWARE GCleaner Downloader Activity M5

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • 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 Win32/Unk.HRESQ! MultiDownloader Checkin

      suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks