Resubmissions

07-09-2024 16:11

240907-tm7wvsvalg 10

Analysis

  • max time kernel
    143s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 16:11

General

  • Target

    8e77959a322818f06533b81d7bc00b36218439d722d2d64f8e78c0a1ec53a03e.exe

  • Size

    6.4MB

  • MD5

    cacc70f8664e2e64794ca8f050efbbf3

  • SHA1

    35fff7e73ca52ed27f2e37519cc79dc3259bdc9e

  • SHA256

    8e77959a322818f06533b81d7bc00b36218439d722d2d64f8e78c0a1ec53a03e

  • SHA512

    df7eaff621e6683244cb33afd1232ebfeec9da1b4666db87f983f16f7cbe2e04668ebdd3fdcfffa6fea05d9dbd0009e3b2e3490a896574bb072e4ab96dfd8241

  • SSDEEP

    98304:gCApbmXuBRlox66Z8sTONqiy7bRyLK3FjK9mC0n0rePt4MPqA7y:VAp3W8sTviA1ye3Fj6W7tx7y

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.

  • 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 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\8e77959a322818f06533b81d7bc00b36218439d722d2d64f8e78c0a1ec53a03e.exe
    "C:\Users\Admin\AppData\Local\Temp\8e77959a322818f06533b81d7bc00b36218439d722d2d64f8e78c0a1ec53a03e.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4548
    • 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:4700
    • 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:2848
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3584
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3584-27-0x0000000000560000-0x0000000000571000-memory.dmp

    Filesize

    68KB

  • memory/4480-42-0x0000000000560000-0x0000000000571000-memory.dmp

    Filesize

    68KB

  • memory/4548-0-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4548-1-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4548-13-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4700-15-0x0000000000560000-0x0000000000571000-memory.dmp

    Filesize

    68KB

  • memory/4700-16-0x0000000075510000-0x000000007564C000-memory.dmp

    Filesize

    1.2MB