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Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 22:11

General

  • Target

    1.exe

  • Size

    6.4MB

  • MD5

    8fb3610c4ba81a5a93666562e712740a

  • SHA1

    fb8b6774e490680c1e04494d101f6ced3b7be816

  • SHA256

    8f72e50fac72d3c5880f79997f6cf38026b00d6f907bcd80c5d780cf92db7158

  • SHA512

    6a833782eb81204d420841acc1cd0d5f03bce00d9725d850e5ef83a5c39c084e7bd1285582531a4092565be9fa8409a7cfbcc0b74a5cefd6dfaf9d4e4f5fd5cb

  • SSDEEP

    98304:AX+ACpyT3Q0Izx583ES5vXJY/IR7puRQ4Y4AOgtly:gBCpyTgvzL8UScWuRLY43Cly

Malware Config

Extracted

Family

cryptbot

C2

tventyvf20pt.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2224
    • 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:3912
    • 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:1128
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4828
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:1688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1688-34-0x0000000000C00000-0x0000000000C11000-memory.dmp

    Filesize

    68KB

  • memory/2224-0-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/2224-1-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/2224-13-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/3912-15-0x0000000000C00000-0x0000000000C11000-memory.dmp

    Filesize

    68KB

  • memory/3912-16-0x0000000075520000-0x000000007565C000-memory.dmp

    Filesize

    1.2MB

  • memory/4828-19-0x0000000000C00000-0x0000000000C11000-memory.dmp

    Filesize

    68KB