General

  • Target

    37d8e1ce3b6e6488942717aa78cb54785edc985143bcc8d9ba9f42d73a3dbd7a.exe

  • Size

    22.5MB

  • Sample

    240719-1l86vs1ern

  • MD5

    52867174362410d63215d78e708103ea

  • SHA1

    7ae4e1048e4463a4201bdeaf224c5b6face681bf

  • SHA256

    37d8e1ce3b6e6488942717aa78cb54785edc985143bcc8d9ba9f42d73a3dbd7a

  • SHA512

    89e17e147d3f073e479e85d0b0321f6264bbc2aa84c930ed645e8f5cde3f1e58812c3db1ba0f10bee6ce7ac0731e1e3de6747a9b3c4d63a564dd8d904bd726ab

  • SSDEEP

    393216:HJLgf7BPkdKzrZciLxv8naSNtPr5rn57M84UTB9xO5/VWvJKJPkwdnfZ4y5SDkFV:poBPQwxMR7pn5qUTB9xOFVWvJKJPkwd9

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    files.000webhost.com
  • Port:
    21
  • Username:
    fcb-aws-host-4

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

gfhhjgh.duckdns.org:8050

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    system32.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

njrat

Version

im523

Botnet

mediaget

C2

kazya1.hopto.org:1470

Mutex

a797c6ca3f5e7aff8fa1149c47fe9466

Attributes
  • reg_key

    a797c6ca3f5e7aff8fa1149c47fe9466

  • splitter

    |'|'|

Extracted

Family

fickerstealer

C2

80.87.192.115:80

Extracted

Family

redline

Botnet

@zhilsholi

C2

yabynennet.xyz:81

Attributes
  • auth_value

    c2d0b7a2ede97b91495c99e75b4f27fb

Extracted

Family

raccoon

Version

1.8.3-hotfix

Botnet

5781468cedb3a203003fdf1f12e72fe98d6f1c0f

Attributes
  • url4cnc

    http://194.180.174.53/brikitiki

    http://91.219.236.18/brikitiki

    http://194.180.174.41/brikitiki

    http://91.219.236.148/brikitiki

    https://t.me/brikitiki

rc4.plain
rc4.plain

Extracted

Family

pony

C2

http://londonpaerl.co.uk/yesup/gate.php

Extracted

Family

oski

C2

prepepe.ac.ug

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Targets

    • Target

      37d8e1ce3b6e6488942717aa78cb54785edc985143bcc8d9ba9f42d73a3dbd7a.exe

    • Size

      22.5MB

    • MD5

      52867174362410d63215d78e708103ea

    • SHA1

      7ae4e1048e4463a4201bdeaf224c5b6face681bf

    • SHA256

      37d8e1ce3b6e6488942717aa78cb54785edc985143bcc8d9ba9f42d73a3dbd7a

    • SHA512

      89e17e147d3f073e479e85d0b0321f6264bbc2aa84c930ed645e8f5cde3f1e58812c3db1ba0f10bee6ce7ac0731e1e3de6747a9b3c4d63a564dd8d904bd726ab

    • SSDEEP

      393216:HJLgf7BPkdKzrZciLxv8naSNtPr5rn57M84UTB9xO5/VWvJKJPkwdnfZ4y5SDkFV:poBPQwxMR7pn5qUTB9xOFVWvJKJPkwd9

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Blackmoon, KrBanker

      Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

    • DcRat

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

    • Detect Blackmoon payload

    • Detect PurpleFox Rootkit

      Detect PurpleFox Rootkit.

    • Fickerstealer

      Ficker is an infostealer written in Rust and ASM.

    • Gh0st RAT payload

    • Gh0strat

      Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

    • HawkEye

      HawkEye is a malware kit that has seen continuous development since at least 2013.

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Pony,Fareit

      Pony is a Remote Access Trojan application that steals information.

    • Process spawned unexpected child process

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

    • PurpleFox

      PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Raccoon Stealer V1 payload

    • RedLine

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

    • UAC bypass

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • xmrig

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

    • Async RAT payload

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • XMRig Miner payload

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • Sets service image path in registry

    • 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

    • 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.

    • UPX packed file

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

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Accesses Microsoft Outlook profiles

    • 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

    • 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 SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks