Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 09:38

General

  • Target

    7a3c1f0a826eec9b77bbe25a3da2db497d2005238c494190f075b0a22b21006d.exe

  • Size

    680KB

  • MD5

    c4ac7a7ee7a9529b0148d9a64c43801b

  • SHA1

    f069ce0f887af125aa606f004f0b7baaf725f300

  • SHA256

    7a3c1f0a826eec9b77bbe25a3da2db497d2005238c494190f075b0a22b21006d

  • SHA512

    6b4bb83cb7ef91ca6c524b05c50017f8a9b3acadbc2122e557990ecf5e16573f121ee6c95f9bf25afec28a66ef95881ccbe8a2197a03891031839616124caccb

  • SSDEEP

    12288:HykVitmN3AUK9io6BF74ZNNuJby8gAmp+U0KtQRJxYTIEs:HykYAF74BuJEAmp+5Kmhx

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
  • Deletes itself 1 IoCs
  • 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).

  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a3c1f0a826eec9b77bbe25a3da2db497d2005238c494190f075b0a22b21006d.exe
    "C:\Users\Admin\AppData\Local\Temp\7a3c1f0a826eec9b77bbe25a3da2db497d2005238c494190f075b0a22b21006d.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7a3c1f0a826eec9b77bbe25a3da2db497d2005238c494190f075b0a22b21006d.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \ProgramData\chrome.dll

    Filesize

    676KB

    MD5

    eda18948a989176f4eebb175ce806255

    SHA1

    ff22a3d5f5fb705137f233c36622c79eab995897

    SHA256

    81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

    SHA512

    160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

  • memory/1632-1-0x0000000002C50000-0x0000000002D50000-memory.dmp

    Filesize

    1024KB

  • memory/1632-2-0x00000000002D0000-0x00000000003AA000-memory.dmp

    Filesize

    872KB

  • memory/1632-3-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/1632-11-0x0000000002C50000-0x0000000002D50000-memory.dmp

    Filesize

    1024KB

  • memory/1632-10-0x00000000002D0000-0x00000000003AA000-memory.dmp

    Filesize

    872KB

  • memory/1632-12-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/1632-9-0x0000000000400000-0x0000000002BAE000-memory.dmp

    Filesize

    39.7MB