Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2024 08:27

General

  • Target

    7dcd3c8c9408c26e55384b50c6b05b1623523dac22973a48325b7ac3f2e99be1.exe

  • Size

    680KB

  • MD5

    491fbb077253ef49c0acf742cb8d5833

  • SHA1

    7d838f4ba2ca272156d24191b48a1cd6f64d9152

  • SHA256

    7dcd3c8c9408c26e55384b50c6b05b1623523dac22973a48325b7ac3f2e99be1

  • SHA512

    d7187a54ee97c4013677e6d2dbb90f97773b18e403b73a260294d7c378977a048d82f2d04b5b58a393b7326a86ca3f959cdecc85cad97e4e124e023d9a16215e

  • SSDEEP

    12288:UUGpgBiEzB+pCLd5wZGh+TaYzRUYBcYGsocX8FgH7EhdTa+:UtgRzB+wd5IGh+TzzqFYn4FgH7

Malware Config

Extracted

Family

stealc

Botnet

LogsDiller

C2

http://77.220.212.32

Attributes
  • url_path

    /eb51242cada87444.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7dcd3c8c9408c26e55384b50c6b05b1623523dac22973a48325b7ac3f2e99be1.exe
    "C:\Users\Admin\AppData\Local\Temp\7dcd3c8c9408c26e55384b50c6b05b1623523dac22973a48325b7ac3f2e99be1.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7dcd3c8c9408c26e55384b50c6b05b1623523dac22973a48325b7ac3f2e99be1.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4952
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 1616
      2⤵
      • Program crash
      PID:464
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3956 -ip 3956
    1⤵
      PID:4708

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\chrome.dll

      Filesize

      676KB

      MD5

      eda18948a989176f4eebb175ce806255

      SHA1

      ff22a3d5f5fb705137f233c36622c79eab995897

      SHA256

      81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

      SHA512

      160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

    • memory/3956-2-0x0000000004870000-0x000000000494A000-memory.dmp

      Filesize

      872KB

    • memory/3956-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

      Filesize

      1024KB

    • memory/3956-3-0x0000000000400000-0x00000000006ED000-memory.dmp

      Filesize

      2.9MB

    • memory/3956-12-0x0000000000400000-0x00000000006ED000-memory.dmp

      Filesize

      2.9MB

    • memory/3956-11-0x0000000004870000-0x000000000494A000-memory.dmp

      Filesize

      872KB

    • memory/3956-10-0x0000000000400000-0x0000000002BAE000-memory.dmp

      Filesize

      39.7MB