Analysis

  • max time kernel
    142s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2024 01:26

General

  • Target

    4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe

  • Size

    6.3MB

  • MD5

    cb8527b1a92dc7eb211c0e78870def59

  • SHA1

    46d82d6504ba606102b43a42aba7f3ca8ef9cb96

  • SHA256

    4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1

  • SHA512

    bc2d291fbd1f1df5305a3da696353a2e93cf55157475ac34fb98d09cdbe8bf483adcdfa0f724f48e8c6db9212a96e15fa960f4b37fc36fe1b6079007da3fc4da

  • SSDEEP

    49152:JV43/hGZrWDav4GWgfLF9P0WHdqB9xZBxo/UVvq667qR44SDPsISUlGI2FJGP8Rw:x4GWOzPDHkB9DBxsJqSp4RI8a

Malware Config

Extracted

Family

cryptbot

C2

analforeverlovyu.top

tventyv20pn.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\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe
    "C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2748
    • 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:2564
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5CB1849C-7691-4AD8-8ADF-75A6607870DC} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1560
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/840-41-0x0000000000900000-0x0000000000911000-memory.dmp

    Filesize

    68KB

  • memory/1560-26-0x0000000000900000-0x0000000000911000-memory.dmp

    Filesize

    68KB

  • memory/2748-17-0x0000000000900000-0x0000000000911000-memory.dmp

    Filesize

    68KB

  • memory/2748-18-0x00000000746A0000-0x00000000747DC000-memory.dmp

    Filesize

    1.2MB

  • memory/2872-0-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB

  • memory/2872-1-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB

  • memory/2872-15-0x0000000000400000-0x0000000001068000-memory.dmp

    Filesize

    12.4MB