General

  • Target

    72be873f38dd3e5f9593a29484945c34419747090d7812afb95b5734bb2df14e

  • Size

    256KB

  • Sample

    211203-aacemschbq

  • MD5

    ba7372ce3571f178c1e020f90ec2520e

  • SHA1

    f1b6ae936df7649da367fa6e8be0abb5fb842637

  • SHA256

    72be873f38dd3e5f9593a29484945c34419747090d7812afb95b5734bb2df14e

  • SHA512

    d9970a8be6172a5fb54cb26348ea793d43631b9fea8c7e9b7ca36602eb2dd7c91d9a5b67b780dc482cc042393813f3880709bf7d3b35389da50dc27236da0db8

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Extracted

Family

redline

C2

92.255.76.197:38637

Targets

    • Target

      72be873f38dd3e5f9593a29484945c34419747090d7812afb95b5734bb2df14e

    • Size

      256KB

    • MD5

      ba7372ce3571f178c1e020f90ec2520e

    • SHA1

      f1b6ae936df7649da367fa6e8be0abb5fb842637

    • SHA256

      72be873f38dd3e5f9593a29484945c34419747090d7812afb95b5734bb2df14e

    • SHA512

      d9970a8be6172a5fb54cb26348ea793d43631b9fea8c7e9b7ca36602eb2dd7c91d9a5b67b780dc482cc042393813f3880709bf7d3b35389da50dc27236da0db8

    • Arkei

      Arkei is an infostealer written in C++.

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

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

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • Arkei Stealer Payload

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Deletes itself

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks