Analysis

  • max time kernel
    90s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-02-2024 06:55

General

  • Target

    Backdoor.Win32.Poison.exe

  • Size

    7.7MB

  • MD5

    6584904d4b82003ab55cc4e409e3c3d1

  • SHA1

    00c2fdbad40ef28ee824930d6f951d8cc4cdbd22

  • SHA256

    9ded158155f6ea7b0546f7b9f4232c6ab8a83dfa4a4a4541ad568c40701ccf63

  • SHA512

    a4a0cdeb31b23f2abf4524354f9b1ab83c348ceb5f6c200db72cd0768dfe50f2ae4c6562ee9f6b1fe5e342ba1d61654bbf92d853aebda1d8c24d29da5184b41e

  • SSDEEP

    196608:7SsB3UHB58UTesBenxj2xwMz8Yi9pZpVU/E/YJsaMf:7SKkftTesBUWbotpKJsaS

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot6998282917:AAFTftoiI1iDK69cdnpTF9-X_NW2zLUTJMQ/sendMessage?chat_id=6569859833

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 2 IoCs
  • Detects executables containing common artifacts observed in infostealers 2 IoCs
  • Detects executables referencing Discord tokens regular expressions 3 IoCs
  • Detects executables referencing credit card regular expressions 3 IoCs
  • Detects executables referencing many VPN software clients. Observed in infosteslers 2 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
  • Detects executables using Telegram Chat Bot 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Poison.exe
    "C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Poison.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Users\Admin\AppData\Local\Temp\v2.exe
      "C:\Users\Admin\AppData\Local\Temp\v2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

    Filesize

    571KB

    MD5

    169b6d383b7c650ab3ae2129397a6cf3

    SHA1

    fcaef7defb04301fd55fb1421bb15ef96d7040d6

    SHA256

    b896083feb2bdedc1568b62805dbd354c55e57f2d2469a52aec6c98f4ec2dedf

    SHA512

    7a7a7bdb508b8bf177249251c83b65a2ef4a5d8b29397cab130cb8444b23888678673a9a2e4b1c74cc095b358f923b9e7e5a91bfa8c240412d95765851f1dd87

  • C:\Users\Admin\AppData\Local\Temp\SQLite.Interop.dll

    Filesize

    1.3MB

    MD5

    0a1e95b0b1535203a1b8479dff2c03ff

    SHA1

    20c4b4406e8a3b1b35ca739ed59aa07ba867043d

    SHA256

    788d748b4d35dfd091626529457d91e9ebc8225746211086b14fb4a25785a51e

    SHA512

    854abcca8d807a98a9ad0ca5d2e55716c3ce26fae7ee4642796baf415c3cfad522b658963eafe504ecaed6c2ecdcdf332c9b01e43dfa342fcc5ca0fbedfe600e

  • C:\Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

    Filesize

    410KB

    MD5

    056d3fcaf3b1d32ff25f513621e2a372

    SHA1

    851740bca46bab71d0b1d47e47f3eb8358cbee03

    SHA256

    66b64362664030bff1596cda2ec5bd5df48cc7c8313c32f771db4aa30a3f86f9

    SHA512

    ce47c581538f48a46d70279a62c702195beacbfafb48a5a862b3922625fe56f6887d1679c6d9366f946d3d2124cb31c2a3eacbbd14d601ea56e66575cdf46180

  • C:\Users\Admin\AppData\Local\Temp\v2.exe

    Filesize

    271KB

    MD5

    1b306d023f27875521a7e0fea2314286

    SHA1

    97c508b280e15903121b6042c6133351a53e68b1

    SHA256

    e9117cc30d4ee4727d5b7f77b2fab14ff86a8aa829e4d639929d755445da4fbf

    SHA512

    e83d78249645dac79d1a2b829fe468d7ec62166d40792b1601e9fac51b5cc57117152cf5dad8410a72dc1ce062f7e6fa368bb71720a04267e69c3fb376d8993e

  • C:\Users\Admin\AppData\Roaming\HuQMWIRSIY.Admin\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Roaming\HuQMWIRSIY.Admin\Process.txt

    Filesize

    759B

    MD5

    5db4b18602232abe2e9f8099238d2a07

    SHA1

    00138d18133e3d51fb2ba0abe7355e16a38cff80

    SHA256

    311c91f2e6070f59512d5dac2968c4b5cd074366b3ed743e78e540643d2a105f

    SHA512

    a62e0428f00243d384b3b0aac975c140fda5fe8edd6f2b684e570b3983f258c791f17261d021cf337671e5ed773c663b5330700d752cb9bb9d44459ab5ad4522

  • C:\Users\Admin\AppData\Roaming\HuQMWIRSIY.Admin\Process.txt

    Filesize

    1KB

    MD5

    5d66ebb8baa234dbe0a1d6826693c009

    SHA1

    9131bf45397c620755f30cc130e58ba8af7197b6

    SHA256

    be43fd4cc3945e2454322a4f473b0cd18b2906b6cca2a4827d98b42675ca4428

    SHA512

    66de9d21a67addcba6ff04dea9eacd44083364bf8191c52641e88a6efdefa48cca696c47d5663000763eb64aee97d4d7dc7ffe613cb4464994c79a81ec0c0ffe

  • memory/112-93-0x0000000005F60000-0x00000000062B4000-memory.dmp

    Filesize

    3.3MB

  • memory/112-100-0x0000000006300000-0x0000000006321000-memory.dmp

    Filesize

    132KB

  • memory/112-88-0x0000000005260000-0x0000000005282000-memory.dmp

    Filesize

    136KB

  • memory/112-86-0x0000000005820000-0x00000000058B2000-memory.dmp

    Filesize

    584KB

  • memory/112-92-0x0000000005EF0000-0x0000000005F58000-memory.dmp

    Filesize

    416KB

  • memory/112-37-0x0000000005480000-0x0000000005512000-memory.dmp

    Filesize

    584KB

  • memory/112-94-0x0000000005EA0000-0x0000000005EEC000-memory.dmp

    Filesize

    304KB

  • memory/112-32-0x0000000004B10000-0x0000000004B20000-memory.dmp

    Filesize

    64KB

  • memory/112-99-0x0000000006360000-0x000000000639C000-memory.dmp

    Filesize

    240KB

  • memory/112-87-0x0000000005420000-0x0000000005470000-memory.dmp

    Filesize

    320KB

  • memory/112-105-0x0000000007330000-0x00000000074F2000-memory.dmp

    Filesize

    1.8MB

  • memory/112-109-0x0000000007AB0000-0x0000000008054000-memory.dmp

    Filesize

    5.6MB

  • memory/112-30-0x00000000001A0000-0x00000000001EA000-memory.dmp

    Filesize

    296KB

  • memory/112-31-0x0000000074DB0000-0x0000000075560000-memory.dmp

    Filesize

    7.7MB

  • memory/112-199-0x0000000007A00000-0x0000000007A66000-memory.dmp

    Filesize

    408KB

  • memory/112-200-0x0000000007580000-0x00000000075F6000-memory.dmp

    Filesize

    472KB

  • memory/112-201-0x0000000007500000-0x000000000751E000-memory.dmp

    Filesize

    120KB

  • memory/112-204-0x0000000074DB0000-0x0000000075560000-memory.dmp

    Filesize

    7.7MB