Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2024 01:53

General

  • Target

    8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe

  • Size

    6.4MB

  • MD5

    cb5ad18649a907f49154af26ad332030

  • SHA1

    46acabf085b42f39bf085432ce436a2d895d8dad

  • SHA256

    8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519

  • SHA512

    36363dde451354f6e87ee48a2b68a55cec92887a49e40844141e60ff9374b694aa6a3225a20dfb3f496d1fe0ebf6be7551adf1109ae037dfa80ad7387a19cd8c

  • SSDEEP

    98304:nrNPA5ZwbswWhll1i2BXyv7KAqGSHqstqtZQbYSx:nrNA0ii2BX8xWqtZQsSx

Malware Config

Extracted

Family

cryptbot

C2

tventyv20sb.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\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe
    "C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3052
    • 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:1044
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B50D77EF-D78F-4E31-8666-08A0AC66C5B8} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • 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:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1884-34-0x0000000000C70000-0x0000000000C81000-memory.dmp

    Filesize

    68KB

  • memory/2772-19-0x0000000000C70000-0x0000000000C81000-memory.dmp

    Filesize

    68KB

  • memory/2956-0-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/2956-1-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/2956-13-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/3052-20-0x0000000000C70000-0x0000000000C81000-memory.dmp

    Filesize

    68KB

  • memory/3052-21-0x0000000075170000-0x00000000752AC000-memory.dmp

    Filesize

    1.2MB