Resubmissions

26-09-2021 14:47

210926-r55s4sehcp 10

24-09-2021 18:42

210924-xcn8jshegn 10

24-09-2021 17:31

210924-v36t6shdck 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    6.5MB

  • Sample

    210926-r55s4sehcp

  • MD5

    745f2a6ae8c3bfce8fdde3d39d788ea7

  • SHA1

    3d6ea6756f20c8e24286238e98209fb898fdb774

  • SHA256

    b41ece0fdbd279c8c8dd615981603fb4cb7052d28d26ce803fbeb0eef5ea01d2

  • SHA512

    7a553805571306d7c53675a4a752a6c63ae1f246a9fa5ce4e6c9729a010672ba48acb9d183715ab0496e54c13d04b7c6f35c8c79e3975bc20326c111d2f8bd37

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://govsurplusstore.com/upload/

http://best-forsale.com/upload/

http://chmxnautoparts.com/upload/

http://kwazone.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

janera

C2

65.108.20.195:6774

Extracted

Family

redline

Botnet

jamesbig

C2

65.108.20.195:6774

Extracted

Family

redline

Botnet

22.09

C2

45.133.1.81:45269

Extracted

Family

redline

Botnet

matthew2009

C2

213.166.69.181:64650

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.top/welcome

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      6.5MB

    • MD5

      745f2a6ae8c3bfce8fdde3d39d788ea7

    • SHA1

      3d6ea6756f20c8e24286238e98209fb898fdb774

    • SHA256

      b41ece0fdbd279c8c8dd615981603fb4cb7052d28d26ce803fbeb0eef5ea01d2

    • SHA512

      7a553805571306d7c53675a4a752a6c63ae1f246a9fa5ce4e6c9729a010672ba48acb9d183715ab0496e54c13d04b7c6f35c8c79e3975bc20326c111d2f8bd37

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

      suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

    • suricata: ET MALWARE GCleaner Downloader Activity M5

      suricata: ET MALWARE GCleaner Downloader Activity M5

    • 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 Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • 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 Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • 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.Raccoon Stealer CnC Activity (dependency download)

      suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)

    • suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

      suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

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

      suricata: ET MALWARE Win32/Tnega Activity (GET)

    • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • suricata: ET MALWARE Zbot Generic URI/Header Struct .bin

      suricata: ET MALWARE Zbot Generic URI/Header Struct .bin

    • 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

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • 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.

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • 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.

    • 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.

    • Program crash

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks

static1

Score
N/A

behavioral1

djvuredlinesmokeloadersocelarsvidar22.09jamesbigjaneraaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral2

djvuredlinesmokeloadervidar22.09matthew2009aspackv2backdoordiscoveryinfostealerransomwarestealersuricatathemidatrojan
Score
10/10

behavioral3

djvuredlinesmokeloadersocelarsvidar22.09janeramatthew2009aspackv2backdoorevasioninfostealerransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral4

redlinesocelarsvidarmatthew2009aspackv2discoveryevasioninfostealerpersistencespywarestealersuricatathemidatrojan
Score
10/10

behavioral5

redlinesmokeloadersocelarsvidar22.09janeramatthew2009aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatathemidatrojan
Score
10/10

behavioral6

djvuredlinesmokeloadersocelarsvidar22.09janeramatthew2009aspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral7

djvuredlinesmokeloadersocelarsvidar22.09janeramatthew2009aspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral8

djvuredlinesmokeloadersocelarsvidar22.09janeramatthew2009aspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10