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Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 13:45

General

  • Target

    aa1e3f7b1f83b009b871b23fd6c38f5f565a1c4eaaba46183927b1117db916c0.exe

  • Size

    297KB

  • MD5

    4d6e9c7274a25f8a3c4bd17f6ec08a8c

  • SHA1

    d10eeb950d8db466e57c557918f9f9d50ee3f4cc

  • SHA256

    aa1e3f7b1f83b009b871b23fd6c38f5f565a1c4eaaba46183927b1117db916c0

  • SHA512

    51975c4122958b0181e0e4d13c340df3bc4de645346855574b4bae73f9d5a1862331d9dbd10b1e9b5bb5f8505b43180a7c08a9c31b9497fe5d1ba6512280ca11

  • SSDEEP

    3072:dPeXm6alymR9ywg3Eyx+F1IMHcxWd2C6Doq0l0vDBae1S2fBCqz48co9/ydzUtmH:Mm6aldWwg3c1IM8xW1vGzBDptCwtY/

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa1e3f7b1f83b009b871b23fd6c38f5f565a1c4eaaba46183927b1117db916c0.exe
    "C:\Users\Admin\AppData\Local\Temp\aa1e3f7b1f83b009b871b23fd6c38f5f565a1c4eaaba46183927b1117db916c0.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Are.docx

    Filesize

    11KB

    MD5

    a33e5b189842c5867f46566bdbf7a095

    SHA1

    e1c06359f6a76da90d19e8fd95e79c832edb3196

    SHA256

    5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

    SHA512

    f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/3436-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3436-46-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-51-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/3436-52-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-56-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-1-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/3436-3-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-86-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-93-0x0000000000400000-0x000000000063B000-memory.dmp

    Filesize

    2.2MB

  • memory/3436-2-0x0000000002260000-0x0000000002287000-memory.dmp

    Filesize

    156KB