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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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31-08-2021 12:57

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31-08-2021 07:34

210831-n7h9w45r3x 10

General

  • Target

    Setup.exe

  • Size

    631KB

  • Sample

    210903-fj6mqsfbfk

  • MD5

    cb927513ff8ebff4dd52a47f7e42f934

  • SHA1

    0de47c02a8adc4940a6c18621b4e4a619641d029

  • SHA256

    fd5c970806fba1500cbb6af5328329aeb43b8de3f02d90ec5d8cd1d57711622f

  • SHA512

    988c8fd886a9155b7d190faf2ce6b34d910efcffcf1c6251f18a9d0c804a0ea26a89679273033ac98b200363c536426efd1ae9de445c34e660369abb06f0071c

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

test

C2

45.14.49.169:22411

Extracted

Family

metasploit

Version

windows/single_exec

Extracted

Family

redline

Botnet

1

C2

37.0.8.88:44263

Extracted

Family

vidar

Version

40.4

Botnet

937

C2

https://romkaxarit.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family

redline

Botnet

NORMAN3

C2

45.14.49.184:28743

Extracted

Family

redline

Botnet

02_09_fat

C2

185.215.113.104:18754

Targets

    • Target

      Setup.exe

    • Size

      631KB

    • MD5

      cb927513ff8ebff4dd52a47f7e42f934

    • SHA1

      0de47c02a8adc4940a6c18621b4e4a619641d029

    • SHA256

      fd5c970806fba1500cbb6af5328329aeb43b8de3f02d90ec5d8cd1d57711622f

    • SHA512

      988c8fd886a9155b7d190faf2ce6b34d910efcffcf1c6251f18a9d0c804a0ea26a89679273033ac98b200363c536426efd1ae9de445c34e660369abb06f0071c

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba Payload

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

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

    • Vidar Stealer

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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