Analysis

  • max time kernel
    145s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-09-2024 14:03

General

  • Target

    4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe

  • Size

    6.3MB

  • MD5

    cb8527b1a92dc7eb211c0e78870def59

  • SHA1

    46d82d6504ba606102b43a42aba7f3ca8ef9cb96

  • SHA256

    4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1

  • SHA512

    bc2d291fbd1f1df5305a3da696353a2e93cf55157475ac34fb98d09cdbe8bf483adcdfa0f724f48e8c6db9212a96e15fa960f4b37fc36fe1b6079007da3fc4da

  • SSDEEP

    49152:JV43/hGZrWDav4GWgfLF9P0WHdqB9xZBxo/UVvq667qR44SDPsISUlGI2FJGP8Rw:x4GWOzPDHkB9DBxsJqSp4RI8a

Malware Config

Extracted

Family

cryptbot

C2

analforeverlovyu.top

tventyv20pn.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.

  • 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\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe
    "C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3484
    • 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:4472
    • 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:1780
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4224
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3484-0-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB

  • memory/3484-1-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB

  • memory/3484-13-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB

  • memory/3560-34-0x0000000000D70000-0x0000000000D81000-memory.dmp

    Filesize

    68KB

  • memory/4224-19-0x0000000000D70000-0x0000000000D81000-memory.dmp

    Filesize

    68KB

  • memory/4472-15-0x0000000000D70000-0x0000000000D81000-memory.dmp

    Filesize

    68KB

  • memory/4472-16-0x0000000075580000-0x00000000756BC000-memory.dmp

    Filesize

    1.2MB