Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03-06-2024 10:06

General

  • Target

    ac6f694d2cb06ebf60e9733821ab1ee853daa2965deee48cde86a829aca0b15f.exe

  • Size

    343KB

  • MD5

    dde738b42bb1b43145919d380d1a30e9

  • SHA1

    66ae18ac2d5eac707fb0a47740a90b9e046dacfe

  • SHA256

    ac6f694d2cb06ebf60e9733821ab1ee853daa2965deee48cde86a829aca0b15f

  • SHA512

    02d56f8d1e4f29936e563b84aaf2718eee01de5fc3691f664e476bea59de4e8a5c142da6cefc341b787017838259e9acfa2de3d86c3e44c130ef85b47113ca3e

  • SSDEEP

    6144:pjYTeEa4wJ8rJn+A4Iah7RacwtwH944lLIX9apT:p0Te/P+V+ADWzG24PX9Q

Malware Config

Extracted

Family

stealc

Botnet

default12

C2

http://185.172.128.170

Attributes
  • url_path

    /7043a0c6a68d9c65.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac6f694d2cb06ebf60e9733821ab1ee853daa2965deee48cde86a829aca0b15f.exe
    "C:\Users\Admin\AppData\Local\Temp\ac6f694d2cb06ebf60e9733821ab1ee853daa2965deee48cde86a829aca0b15f.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HJJECBKKEC.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Users\Admin\AppData\Local\Temp\HJJECBKKEC.exe
        "C:\Users\Admin\AppData\Local\Temp\HJJECBKKEC.exe"
        3⤵
        • Executes dropped EXE
        PID:2420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\HJJECBKKEC.exe

    Filesize

    533KB

    MD5

    6c93fc68e2f01c20fb81af24470b790c

    SHA1

    d5927b38a32e30afcf5a658612a8266476fc4ad8

    SHA256

    64a71b664d76641b35dac312161cb356b3b3b5f0b45c9d88c8afa547b4902580

    SHA512

    355e9677121ef17cf8c398f0c17399776d206c62014080a2c62682e1152ea0729dcc6e233358dcd6bae009b07e3db936d4b18eb37d6e7ebc2fe9cf8d827c4ade

  • \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/1520-1-0x0000000000810000-0x0000000000910000-memory.dmp

    Filesize

    1024KB

  • memory/1520-3-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/1520-2-0x0000000000220000-0x0000000000247000-memory.dmp

    Filesize

    156KB

  • memory/1520-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1520-75-0x0000000000810000-0x0000000000910000-memory.dmp

    Filesize

    1024KB

  • memory/1520-74-0x0000000000400000-0x000000000068E000-memory.dmp

    Filesize

    2.6MB

  • memory/1520-76-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB