Analysis

  • max time kernel
    143s
  • max time network
    98s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-09-2024 16:39

General

  • Target

    33b1feca63927883a06a667d13255b0db73c87ff11bfa396cff5f691e1983184.exe

  • Size

    6.4MB

  • MD5

    6fe57f17e8f05dbfaef51dff071d5dfe

  • SHA1

    6e2c04d41f7224d00f2ee00d8367597db3c2d2e1

  • SHA256

    33b1feca63927883a06a667d13255b0db73c87ff11bfa396cff5f691e1983184

  • SHA512

    82cd5fe0744a929f0842a8763aeb0dc9579b8ea1d407f37f21f26a5eddf293545c43e7fcaedb8c41ca356551abd11662fb4a3677aba57515fcf0934eff65ee5c

  • SSDEEP

    98304:wgb/KWKVxvjJphjT3d8NWl2lK9YIx81n2:B/KWKjtjpEWWn2

Malware Config

Extracted

Family

cryptbot

C2

threv3sb.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\33b1feca63927883a06a667d13255b0db73c87ff11bfa396cff5f691e1983184.exe
    "C:\Users\Admin\AppData\Local\Temp\33b1feca63927883a06a667d13255b0db73c87ff11bfa396cff5f691e1983184.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3964
    • 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:4488
    • 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:1552
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4232
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2412-34-0x0000000000590000-0x00000000005A1000-memory.dmp

    Filesize

    68KB

  • memory/3964-0-0x0000000000400000-0x000000000106C000-memory.dmp

    Filesize

    12.4MB

  • memory/3964-1-0x0000000000400000-0x000000000106C000-memory.dmp

    Filesize

    12.4MB

  • memory/3964-13-0x0000000000400000-0x000000000106C000-memory.dmp

    Filesize

    12.4MB

  • memory/4232-19-0x0000000000590000-0x00000000005A1000-memory.dmp

    Filesize

    68KB

  • memory/4488-15-0x0000000000590000-0x00000000005A1000-memory.dmp

    Filesize

    68KB

  • memory/4488-16-0x0000000074A40000-0x0000000074B7C000-memory.dmp

    Filesize

    1.2MB