General

  • Target

    727fb9e6d928b165bf89bbd1bd6d3a1b.exe

  • Size

    158KB

  • Sample

    211130-l8hvvsefdk

  • MD5

    727fb9e6d928b165bf89bbd1bd6d3a1b

  • SHA1

    3deba58caf9f7523bb5d2181f39e849a9223a69c

  • SHA256

    d1ef469cfb957e9ddec889f4167b5de78fdd7baa90c47aed85bc46727ecde863

  • SHA512

    8d34b1d6e4be8a8d190bb838b2d9039485287b9ab1fc39dfd5cc2166056254e30fa3e0b7a787919b43b339b68dd95d078622f1f45462abb0b92222948c7f69c9

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

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

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

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Extracted

Family

arkei

Botnet

Default

C2

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

Extracted

Family

redline

C2

92.255.76.197:38637

Extracted

Family

icedid

Campaign

2904573523

C2

placingapie.ink

Extracted

Family

redline

Botnet

wawa

C2

45.77.80.187:15300

Targets

    • Target

      727fb9e6d928b165bf89bbd1bd6d3a1b.exe

    • Size

      158KB

    • MD5

      727fb9e6d928b165bf89bbd1bd6d3a1b

    • SHA1

      3deba58caf9f7523bb5d2181f39e849a9223a69c

    • SHA256

      d1ef469cfb957e9ddec889f4167b5de78fdd7baa90c47aed85bc46727ecde863

    • SHA512

      8d34b1d6e4be8a8d190bb838b2d9039485287b9ab1fc39dfd5cc2166056254e30fa3e0b7a787919b43b339b68dd95d078622f1f45462abb0b92222948c7f69c9

    • Arkei

      Arkei is an infostealer written in C++.

    • CryptBot

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

    • IcedID, BokBot

      IcedID is a banking trojan capable of stealing credentials.

    • 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.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Windows security bypass

    • 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

    • suricata: ET MALWARE Win32/IcedID Request Cookie

      suricata: ET MALWARE Win32/IcedID Request Cookie

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

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Arkei Stealer Payload

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • 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 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook profiles

    • 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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks