Analysis

  • max time kernel
    147s
  • max time network
    154s
  • 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 03:32

General

  • Target

    705715ead0838a08df2dae3ed90af2a55c1a3164a32c4aafa9ca587292cebc59.exe

  • Size

    6.3MB

  • MD5

    e55ffa76f68961a84306337c444c1c5e

  • SHA1

    e2539f93b6e23258f81fc7e2c0cff04c9ffd6717

  • SHA256

    705715ead0838a08df2dae3ed90af2a55c1a3164a32c4aafa9ca587292cebc59

  • SHA512

    11ee83011d9616773220e6d38627087e0fff8aa81639c036223c6c5d136609c62be2c01e83fb67c96f06265264f6dde94ba3efc259ae27293e9d925e0a6f2183

  • SSDEEP

    98304:ti2E5+O/X2sJAmbX/j7z2lsks9fum1HPDUdpP8JJGL:ti2E5JGKbvj7G9s9m6PD6P8J4L

Malware Config

Extracted

Family

cryptbot

C2

siv6sb.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\705715ead0838a08df2dae3ed90af2a55c1a3164a32c4aafa9ca587292cebc59.exe
    "C:\Users\Admin\AppData\Local\Temp\705715ead0838a08df2dae3ed90af2a55c1a3164a32c4aafa9ca587292cebc59.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2248
    • 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:1376
    • 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:1196
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3896
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1376-15-0x00000000009B0000-0x00000000009C1000-memory.dmp

    Filesize

    68KB

  • memory/1376-16-0x0000000075980000-0x0000000075ABC000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-36-0x00000000009B0000-0x00000000009C1000-memory.dmp

    Filesize

    68KB

  • memory/2248-0-0x0000000000400000-0x0000000001065000-memory.dmp

    Filesize

    12.4MB

  • memory/2248-1-0x0000000000400000-0x0000000001065000-memory.dmp

    Filesize

    12.4MB

  • memory/2248-13-0x0000000000400000-0x0000000001065000-memory.dmp

    Filesize

    12.4MB

  • memory/3896-21-0x00000000009B0000-0x00000000009C1000-memory.dmp

    Filesize

    68KB