Analysis

  • max time kernel
    145s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21/09/2024, 13:32

General

  • Target

    Set-up.exe

  • Size

    6.3MB

  • MD5

    71d46e328c15c55b8c3e8ceceaf4080b

  • SHA1

    821466d697e0aa0bb609f5c30758d76ef75ca493

  • SHA256

    5b68a18b943aa4a4002e2c4e62cb2f1be72023c07bfcbf7da076c438740de59f

  • SHA512

    fcc976b434e7b4dd0d3afd1e81dc8a4487352071be2ee2f00593fa8048234482963e1e73dccc6ba5998a179ff778ab312ff5cf1f3b48685754bdc63150593aa8

  • SSDEEP

    98304:RbCUku0EYnWl7GXP11r7V1yAPzjjdSyKmQb:RWBEKXbzPzkpb

Malware Config

Extracted

Family

cryptbot

C2

sixvf16pt.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 5 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 2 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Set-up.exe
    "C:\Users\Admin\AppData\Local\Temp\Set-up.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2832
    • 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:2836
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D656F68F-C3A3-418E-96D9-2D1ABAB8451B} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1724-0-0x0000000000400000-0x0000000001067000-memory.dmp

    Filesize

    12.4MB

  • memory/1724-1-0x0000000000400000-0x0000000001067000-memory.dmp

    Filesize

    12.4MB

  • memory/1724-14-0x0000000000400000-0x0000000001067000-memory.dmp

    Filesize

    12.4MB

  • memory/2572-36-0x00000000000A0000-0x00000000000B1000-memory.dmp

    Filesize

    68KB

  • memory/2604-21-0x00000000000A0000-0x00000000000B1000-memory.dmp

    Filesize

    68KB

  • memory/2832-16-0x00000000000A0000-0x00000000000B1000-memory.dmp

    Filesize

    68KB

  • memory/2832-17-0x0000000075130000-0x000000007526C000-memory.dmp

    Filesize

    1.2MB