Resubmissions

03-09-2021 12:16

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03-09-2021 04:55

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02-09-2021 19:23

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02-09-2021 15:02

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02-09-2021 11:29

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01-09-2021 17:32

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31-08-2021 12:57

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31-08-2021 07:34

210831-n7h9w45r3x 10

General

  • Target

    Setup.exe

  • Size

    631KB

  • Sample

    210902-4b2x2c3ahj

  • MD5

    cb927513ff8ebff4dd52a47f7e42f934

  • SHA1

    0de47c02a8adc4940a6c18621b4e4a619641d029

  • SHA256

    fd5c970806fba1500cbb6af5328329aeb43b8de3f02d90ec5d8cd1d57711622f

  • SHA512

    988c8fd886a9155b7d190faf2ce6b34d910efcffcf1c6251f18a9d0c804a0ea26a89679273033ac98b200363c536426efd1ae9de445c34e660369abb06f0071c

Malware Config

Extracted

Family

redline

Botnet

NORMAN3

C2

45.14.49.184:28743

Extracted

Family

redline

Botnet

test

C2

45.14.49.169:22411

Extracted

Family

redline

Botnet

22_8_big

C2

185.215.113.104:18754

Extracted

Family

vidar

Version

40.3

Botnet

937

C2

https://lenko349.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family

raccoon

Botnet

d02c5d65069fc7ce1993e7c52edf0c9c4c195c81

Attributes
  • url4cnc

    https://telete.in/open3entershift

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

1

C2

37.0.8.88:44263

Targets

    • Target

      Setup.exe

    • Size

      631KB

    • MD5

      cb927513ff8ebff4dd52a47f7e42f934

    • SHA1

      0de47c02a8adc4940a6c18621b4e4a619641d029

    • SHA256

      fd5c970806fba1500cbb6af5328329aeb43b8de3f02d90ec5d8cd1d57711622f

    • SHA512

      988c8fd886a9155b7d190faf2ce6b34d910efcffcf1c6251f18a9d0c804a0ea26a89679273033ac98b200363c536426efd1ae9de445c34e660369abb06f0071c

    • Modifies Windows Defender Real-time Protection settings

    • Modifies system executable filetype association

    • Process spawned unexpected child process

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

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • RedLine

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

    • RedLine Payload

    • Registers COM server for autorun

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

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

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Drops startup file

    • 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.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks