Analysis

  • max time kernel
    292s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 05:02

General

  • Target

    4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe

  • Size

    6.4MB

  • MD5

    3d1a9c6cc39f62d16e607e3024c34945

  • SHA1

    980dfcb714b0de1470f94e243af75811d0fb4552

  • SHA256

    4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3

  • SHA512

    8f30abba9f60200fd1695d2ccbf24f54652f27cf6a522cf58e003baea0c8f1e7c22112570ce34545ca61418b093d642804f9bc0dc570176d55194eddc0fd25dc

  • SSDEEP

    98304:yuEL8PrbbdWhkhysgPMQtupecLz8K9U4J+x3lDO2Nh5:yuO8PrbbiH9OAK9XJAD3h5

Malware Config

Extracted

Family

cryptbot

C2

tventyv20pt.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 5 IoCs
  • Loads dropped DLL 7 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 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe
    "C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2836
    • 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:2764
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {64ECB856-43B4-4C44-8205-01B8082F5351} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:576
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1636
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:712
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/576-25-0x0000000001200000-0x0000000001211000-memory.dmp

    Filesize

    68KB

  • memory/712-55-0x0000000001200000-0x0000000001211000-memory.dmp

    Filesize

    68KB

  • memory/1636-40-0x0000000001200000-0x0000000001211000-memory.dmp

    Filesize

    68KB

  • memory/1972-0-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB

  • memory/1972-1-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB

  • memory/1972-13-0x0000000000400000-0x0000000001072000-memory.dmp

    Filesize

    12.4MB

  • memory/2836-16-0x0000000001200000-0x0000000001211000-memory.dmp

    Filesize

    68KB

  • memory/2836-17-0x0000000074BB0000-0x0000000074CEC000-memory.dmp

    Filesize

    1.2MB

  • memory/3048-70-0x0000000001200000-0x0000000001211000-memory.dmp

    Filesize

    68KB