General

  • Target

    37a08c70daddf5079288e71df5796d5cd1a2e67fd3b71a4b3492514abca524c4

  • Size

    3.4MB

  • Sample

    240509-2r2jmsee23

  • MD5

    886e5d7f4e35c0bb6164dc74bf5e371b

  • SHA1

    009dd91c1ecfa4c39374437f7415871144aaa88b

  • SHA256

    37a08c70daddf5079288e71df5796d5cd1a2e67fd3b71a4b3492514abca524c4

  • SHA512

    b0518c38397749e249e716634541fb9901961ae78734711ef7d7a6446aba4e3d60d073f03532e6aa32f2320a5c30e817647b7aa077b5978b0f0d407375e89994

  • SSDEEP

    49152:eg6HD4YPpoVBQQAbNwmW6Vvfw5ADqfzgF4Cdypovv:0VBFsGvkAF3

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://cellc.org/tmp/index.php

http://h-c-v.ru/tmp/index.php

http://icebrasilpr.com/tmp/index.php

http://piratia-life.ru/tmp/index.php

http://piratia.su/tmp/index.php

rc4.i32
rc4.i32

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Targets

    • Target

      37a08c70daddf5079288e71df5796d5cd1a2e67fd3b71a4b3492514abca524c4

    • Size

      3.4MB

    • MD5

      886e5d7f4e35c0bb6164dc74bf5e371b

    • SHA1

      009dd91c1ecfa4c39374437f7415871144aaa88b

    • SHA256

      37a08c70daddf5079288e71df5796d5cd1a2e67fd3b71a4b3492514abca524c4

    • SHA512

      b0518c38397749e249e716634541fb9901961ae78734711ef7d7a6446aba4e3d60d073f03532e6aa32f2320a5c30e817647b7aa077b5978b0f0d407375e89994

    • SSDEEP

      49152:eg6HD4YPpoVBQQAbNwmW6Vvfw5ADqfzgF4Cdypovv:0VBFsGvkAF3

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect ZGRat V1

    • Glupteba

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

    • Glupteba payload

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Checks BIOS information in registry

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

    • Drops startup file

    • Executes dropped EXE

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • 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.

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks