Analysis

  • max time kernel
    142s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15/09/2024, 22:22

General

  • Target

    file.exe

  • Size

    6.4MB

  • MD5

    4475bfcbfea874adedc1a2818afe4c87

  • SHA1

    607ec3e9578f6ea4ee0059911d8170ca84d5f78d

  • SHA256

    638dd1f701aec57c51765e330c7c4664d8913cb3d0e54bb1c102bdbe30452ecc

  • SHA512

    1e8cd4b64693defe44b811e92fce83f6a6b52e4d9c7ec6e9eb9aa70d6a2ef357882b646d93d0e3b3bbb7543731a260e7c69a5aa4c061d36b7540f6dbd3f745d1

  • SSDEEP

    49152:6T1zbh2PpBi97YhGFuwa6ogSsvE1tSvdPH3LnasvrDtf67VKnO6K6+1SUNiMfk3h:4aXs8ytf6Qx/+WMfBgFfHkQ4/U67eps4

Malware Config

Extracted

Family

cryptbot

C2

fivevd5vs.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 2 IoCs
  • Loads dropped DLL 4 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2772
    • 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:2768
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {581C6684-E530-45BD-BC95-C149A9E4D6E5} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2032-31-0x0000000001220000-0x0000000001231000-memory.dmp

    Filesize

    68KB

  • memory/2372-0-0x0000000000400000-0x000000000106E000-memory.dmp

    Filesize

    12.4MB

  • memory/2372-1-0x0000000000400000-0x000000000106E000-memory.dmp

    Filesize

    12.4MB

  • memory/2372-3-0x0000000000400000-0x000000000106E000-memory.dmp

    Filesize

    12.4MB

  • memory/2372-16-0x0000000000400000-0x000000000106E000-memory.dmp

    Filesize

    12.4MB

  • memory/2772-18-0x0000000001220000-0x0000000001231000-memory.dmp

    Filesize

    68KB

  • memory/2772-19-0x00000000753E0000-0x000000007551C000-memory.dmp

    Filesize

    1.2MB