Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 10:41

General

  • Target

    277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe

  • Size

    6.5MB

  • MD5

    3394808f2d5c141b86e33a51ace8a577

  • SHA1

    2bb0408fff0e02cbe8bd35cf0fe12e63d5bd08e1

  • SHA256

    277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758

  • SHA512

    b125c00020afdf9ea17f49e01120bafff27cd10752a018dcdf3d064fa371991654a18d86cbe1accbec67e3f05ff0d6d0b2f4237c093acea43cef4fd206b7ad6a

  • SSDEEP

    49152:zX1kYWFZc6jmmW1RXZmRUd0/Gj4L1iNhQG3nHeSy/o+8k547W9UXwgZJ5hWGDPfk:zSzjmhasSGj4L0NhN3H1y/o+ZwW9

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\277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe
    "C:\Users\Admin\AppData\Local\Temp\277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1544
    • 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:4976
    • 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:2172
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4716
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1544-0-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/1544-9-0x00000000002F0000-0x0000000000975000-memory.dmp

    Filesize

    6.5MB

  • memory/1544-22-0x00000000002F0000-0x0000000000975000-memory.dmp

    Filesize

    6.5MB

  • memory/3804-47-0x0000000000810000-0x0000000000822000-memory.dmp

    Filesize

    72KB

  • memory/4716-32-0x0000000000810000-0x0000000000822000-memory.dmp

    Filesize

    72KB

  • memory/4976-24-0x0000000000810000-0x0000000000822000-memory.dmp

    Filesize

    72KB

  • memory/4976-25-0x0000000074F80000-0x00000000750B4000-memory.dmp

    Filesize

    1.2MB