Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14-02-2024 13:24

General

  • Target

    02cb9af88746226616ddb11daa71c69b905d058821024b33312f89280d801b20.exe

  • Size

    257KB

  • MD5

    79354d807b84eae0226cb281d51ec556

  • SHA1

    1f3b8c2cc5cb2a5ba43928bbdf69da68f7d53699

  • SHA256

    02cb9af88746226616ddb11daa71c69b905d058821024b33312f89280d801b20

  • SHA512

    b7afe17aec21af193f510f77cc64fdc9384660e39c461e9d190dc75d2056cad7782ac190ed340dd72b3d8254bbc5b4b84e248f4b18b36a4c2acdcd5c44373a3d

  • SSDEEP

    3072:ri1a+Cho8bykoRlY0j+rkzErS1qgiKSYOChEzg1rrsfHEyrUx4zXn4nYI5UXn7t7:rp3a8MdjHzXiKSuGzg1rrl04i3V

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.24

Attributes
  • url_path

    /f993692117a3fda2.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02cb9af88746226616ddb11daa71c69b905d058821024b33312f89280d801b20.exe
    "C:\Users\Admin\AppData\Local\Temp\02cb9af88746226616ddb11daa71c69b905d058821024b33312f89280d801b20.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/3044-1-0x0000000000700000-0x0000000000800000-memory.dmp

    Filesize

    1024KB

  • memory/3044-3-0x0000000000400000-0x0000000000647000-memory.dmp

    Filesize

    2.3MB

  • memory/3044-2-0x00000000002E0000-0x0000000000314000-memory.dmp

    Filesize

    208KB

  • memory/3044-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3044-64-0x0000000000400000-0x0000000000647000-memory.dmp

    Filesize

    2.3MB

  • memory/3044-65-0x0000000000400000-0x0000000000647000-memory.dmp

    Filesize

    2.3MB

  • memory/3044-66-0x0000000000700000-0x0000000000800000-memory.dmp

    Filesize

    1024KB