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Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2024, 20:15

General

  • Target

    919bd7c5bd519ea81d757569fb0a340042d7b7071b9e4a2a2bb63c14a2beb171.exe

  • Size

    205KB

  • MD5

    58f22f4769e590f572304d26eaa637b0

  • SHA1

    fdfa6b1c9aa2ac4890bf0fb38f55e8471eb08ea6

  • SHA256

    919bd7c5bd519ea81d757569fb0a340042d7b7071b9e4a2a2bb63c14a2beb171

  • SHA512

    96987f86087a002b141e0eb42764e320553e10c3833a0af252ab5f71567b88d0eb957dbc3254c3ac99d9887a114ce7ef90857ca646c24f041eecf373b7233a53

  • SSDEEP

    3072:BnsLgAjV2MaqD2Yp/cdDoWEMRsleoEBgOlErQ34Kx78dSfL:BsL32+pkIleoEBbErQoD

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.79

Attributes
  • url_path

    /3886d2276f6914c4.php

rc4.plain

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 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\919bd7c5bd519ea81d757569fb0a340042d7b7071b9e4a2a2bb63c14a2beb171.exe
    "C:\Users\Admin\AppData\Local\Temp\919bd7c5bd519ea81d757569fb0a340042d7b7071b9e4a2a2bb63c14a2beb171.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2884

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/2884-35-0x0000000000980000-0x0000000000A80000-memory.dmp

    Filesize

    1024KB

  • memory/2884-4-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-5-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2884-34-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-1-0x0000000000980000-0x0000000000A80000-memory.dmp

    Filesize

    1024KB

  • memory/2884-40-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-44-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-48-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-55-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-3-0x0000000000240000-0x000000000025C000-memory.dmp

    Filesize

    112KB

  • memory/2884-2-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-74-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB

  • memory/2884-84-0x0000000000400000-0x0000000000853000-memory.dmp

    Filesize

    4.3MB