Analysis

  • max time kernel
    140s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2024 07:14

General

  • Target

    file.exe

  • Size

    7.1MB

  • MD5

    7105a2ba8c897b6c2072a6ab0bdecdf1

  • SHA1

    d3659027483c2825c8430a41a0c3e439aac78e2f

  • SHA256

    abc53ac9f7564ceba0a7548b880b1e92c8e0329ff9680e3c5f06abcbd4e869b9

  • SHA512

    25dc46cf350a294ea6ce7b7d07c07bfd379307783bea9f357d20a7277fa49736221c7ba1f33afd46ef26a917ef544303291263931b239c26aa8f5abb35a92c9e

  • SSDEEP

    49152:w6u6AkFUy00GL2vXkEkaBdCtsRbSgVw1y0y1zTPWs8Mo1FqSiqL7ECI4chxGeO2b:wyA+UtvLgXMaBssNSgAyPzT

Malware Config

Signatures

  • CryptBot

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

  • Detects CryptBot payload 1 IoCs

    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 use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2944
    • 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:2880
    • 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:3264
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:1804
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1804-30-0x0000000000830000-0x0000000000842000-memory.dmp

    Filesize

    72KB

  • memory/2880-24-0x0000000000830000-0x0000000000842000-memory.dmp

    Filesize

    72KB

  • memory/2880-25-0x00000000754D0000-0x0000000075604000-memory.dmp

    Filesize

    1.2MB

  • memory/2944-0-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/2944-9-0x0000000000A00000-0x0000000001124000-memory.dmp

    Filesize

    7.1MB

  • memory/2944-22-0x0000000000A00000-0x0000000001124000-memory.dmp

    Filesize

    7.1MB

  • memory/4608-45-0x0000000000830000-0x0000000000842000-memory.dmp

    Filesize

    72KB