Analysis

  • max time kernel
    141s
  • max time network
    94s
  • 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 21:44

General

  • Target

    40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe

  • Size

    6.4MB

  • MD5

    14000093998e963dcccc98a7162574c4

  • SHA1

    52e5c0d7fd74a697740f3780f17ca12dd526a295

  • SHA256

    40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463

  • SHA512

    562032fab6549498083bbbea8be678731902083f47f02a856ca4e31391c15cc16ee9ee16c164242cef333d505c8ebf56060a3a6161d3dc6926d229e644fa6f3c

  • SSDEEP

    98304:fBDzmHzcbKRVojDs5lfPKtVQ2rGNG6qUXynD4nuSDDC:JEzXQ/sfPCQ2rGNMFnD4HDC

Malware Config

Extracted

Family

cryptbot

C2

siv6pn.top

analforeverlovyu.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\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe
    "C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2984
    • 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:724
    • 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:1476
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2892
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/724-15-0x0000000000950000-0x0000000000961000-memory.dmp

    Filesize

    68KB

  • memory/724-16-0x0000000074D70000-0x0000000074EAC000-memory.dmp

    Filesize

    1.2MB

  • memory/2044-40-0x0000000000950000-0x0000000000961000-memory.dmp

    Filesize

    68KB

  • memory/2892-25-0x0000000000950000-0x0000000000961000-memory.dmp

    Filesize

    68KB

  • memory/2984-0-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB

  • memory/2984-1-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB

  • memory/2984-13-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB