Analysis

  • max time kernel
    143s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 22:47

General

  • Target

    2529fedf71b1b54b4084a59546956dad83c173fe02e02700cc04b78594cf0727.exe

  • Size

    6.4MB

  • MD5

    b50c1e840e9452d6898eba3458982e88

  • SHA1

    b0144d10b4da7a3074aec23d570677f11a3201de

  • SHA256

    2529fedf71b1b54b4084a59546956dad83c173fe02e02700cc04b78594cf0727

  • SHA512

    dde0ad5cd22c0eea8faebf16bf28dcb07e3a51e46a1573ea857c7a79a832f70f750e670b1e66577c867402714b22e074de0216db9359c299615b5d73122fa0e8

  • SSDEEP

    196608:fgZ1CgmuCZ92WTs6YoQB3NhPn9PKcWkFV:fWV9CZ9n54hf9DlV

Malware Config

Extracted

Family

cryptbot

C2

eihtvf18vt.top

analforeverlovyu.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

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

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 10 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 use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2529fedf71b1b54b4084a59546956dad83c173fe02e02700cc04b78594cf0727.exe
    "C:\Users\Admin\AppData\Local\Temp\2529fedf71b1b54b4084a59546956dad83c173fe02e02700cc04b78594cf0727.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"
      2⤵
      • Executes dropped EXE
      PID:2380
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        "C:\Users\Admin\AppData\Local\Temp\service123.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2632
      • 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
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1232
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9578D35F-5F93-4604-8967-542B89EEA2C1} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2656
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe

    Filesize

    6.4MB

    MD5

    e0f961a0645e07efae6aa9d7835d70be

    SHA1

    3e4e5c3e9770f1bf3cf2a49695d4e707e43a0336

    SHA256

    f601b36824f7e81556cd468366914c010c2ab70fc038ab9a6790d4ba94dd22d3

    SHA512

    652f1c4081c6172dd653286e71fcc153df7b796e4a0beb56df1cb791ff9e65f37cdd15891e85ca0f9799ef76cb4a33764478d7b8a8dfcf7df4bbe321cfaa37ef

  • \Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe

    Filesize

    16.4MB

    MD5

    9a8fcf471ff5cd4b51cc4ce397b85482

    SHA1

    25b2d0fd6b1b0c8bbbfcbd46f608842cfdb59138

    SHA256

    01f29c10eddb472f8c172845d03818c780f833ce9cd8f46e1b48d046060cf98b

    SHA512

    51f5828c98ddb5bca20e3bc1b224ab8fd7d1c1cb3398d2d656d21a70d00c53df7040feda95f73ec382c4d8566f896a378e555c546846d29495524e2474b8c94f

  • memory/2380-9-0x000000013FD40000-0x0000000140DFE000-memory.dmp

    Filesize

    16.7MB

  • memory/2632-44-0x00000000013B0000-0x00000000013C1000-memory.dmp

    Filesize

    68KB

  • memory/2632-45-0x0000000074290000-0x00000000743BC000-memory.dmp

    Filesize

    1.2MB

  • memory/2656-43-0x00000000013B0000-0x00000000013C1000-memory.dmp

    Filesize

    68KB

  • memory/2696-24-0x0000000000400000-0x0000000001064000-memory.dmp

    Filesize

    12.4MB

  • memory/2696-25-0x0000000000400000-0x0000000001064000-memory.dmp

    Filesize

    12.4MB

  • memory/2696-38-0x0000000000400000-0x0000000001064000-memory.dmp

    Filesize

    12.4MB

  • memory/3000-58-0x00000000013B0000-0x00000000013C1000-memory.dmp

    Filesize

    68KB