Analysis

  • max time kernel
    144s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 01:30

General

  • Target

    4982cf1702801f6cedce0fabdf5d5e1cf94af778b768eddad5044f923180cb89.exe

  • Size

    6.4MB

  • MD5

    d5ef7a30cb9c06cafd2654a3c8018425

  • SHA1

    b88c6e3e2abe0edd06e4565cd5b9f4f8e9a72a6c

  • SHA256

    4982cf1702801f6cedce0fabdf5d5e1cf94af778b768eddad5044f923180cb89

  • SHA512

    f409dd5c797f7117f93bd5a2ce67372b135a624bdbeaa6d457a8860e2d5460d13d01de1ffc27ea560da7f5f914204262ba1a4b77e8a26421eea5161d3d72bf0b

  • SSDEEP

    98304:4bShAumVddxYQEyKENP1xKkGSlXCgGH1w64ObLyXO:4bShApjdmstxDC1H1LbmXO

Malware Config

Extracted

Family

cryptbot

C2

twelvevf12vt.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4982cf1702801f6cedce0fabdf5d5e1cf94af778b768eddad5044f923180cb89.exe
    "C:\Users\Admin\AppData\Local\Temp\4982cf1702801f6cedce0fabdf5d5e1cf94af778b768eddad5044f923180cb89.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:232
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:5116
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1204
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=2708,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=4460 /prefetch:8
    1⤵
      PID:1472
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=5048,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=3268 /prefetch:3
      1⤵
        PID:3648
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        C:\Users\Admin\AppData\Local\Temp\/service123.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4236
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        C:\Users\Admin\AppData\Local\Temp\/service123.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

        Filesize

        2B

        MD5

        d751713988987e9331980363e24189ce

        SHA1

        97d170e1550eee4afc0af065b78cda302a97674c

        SHA256

        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

        SHA512

        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

        Filesize

        40B

        MD5

        20d4b8fa017a12a108c87f540836e250

        SHA1

        1ac617fac131262b6d3ce1f52f5907e31d5f6f00

        SHA256

        6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

        SHA512

        507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

      • memory/232-0-0x0000000000400000-0x000000000106E000-memory.dmp

        Filesize

        12.4MB

      • memory/232-7-0x0000000000400000-0x000000000106E000-memory.dmp

        Filesize

        12.4MB

      • memory/232-24-0x0000000000400000-0x000000000106E000-memory.dmp

        Filesize

        12.4MB

      • memory/4236-34-0x0000000000FF0000-0x0000000001001000-memory.dmp

        Filesize

        68KB

      • memory/4552-47-0x0000000000FF0000-0x0000000001001000-memory.dmp

        Filesize

        68KB

      • memory/5116-26-0x0000000000FF0000-0x0000000001001000-memory.dmp

        Filesize

        68KB

      • memory/5116-27-0x0000000075680000-0x00000000757BC000-memory.dmp

        Filesize

        1.2MB