Analysis

  • max time kernel
    149s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2024 00:01

General

  • Target

    Set-up.exe

  • Size

    6.3MB

  • MD5

    3406055d6c38b0219192413e4cd18a2b

  • SHA1

    80be1c096353caae8b01182b39df81191ae7924f

  • SHA256

    008363271c52663213d521af1a6c9cf1b9e2d4be17a629ff6079a69e796236c8

  • SHA512

    077c2fe82e5093b5bd3912ffb307495c3a58e03b2eb4c5003c30e07b0bf41012d695c1525b4ff138c9a0e4427b70a6732873b17aa5c06cf830ab56e0fa7d6311

  • SSDEEP

    98304:ui+pBnmP/EW4Cz1NEG7NWOxUFXjn+xjYQEaTZFBHSbKu0:uRTW4Cy4NwneLEaTZFBHfu0

Malware Config

Extracted

Family

cryptbot

C2

fiftv15pn.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:1592
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2852
    • 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:2708
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4C8E780B-6494-4C21-819A-D6967B8411BC} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2124
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1592-0-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/1592-1-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/1592-2-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/1592-17-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/2124-26-0x0000000000F00000-0x0000000000F11000-memory.dmp

    Filesize

    68KB

  • memory/2272-41-0x0000000000F00000-0x0000000000F11000-memory.dmp

    Filesize

    68KB

  • memory/2852-19-0x0000000000F00000-0x0000000000F11000-memory.dmp

    Filesize

    68KB

  • memory/2852-20-0x0000000074680000-0x00000000747BC000-memory.dmp

    Filesize

    1.2MB