Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2024, 22:08

General

  • Target

    5843aa8280819e31b06f61a02cdf2c908c891bed32beb9860843b769a6f14157.exe

  • Size

    326KB

  • MD5

    9d250ac8d4aadc7ea557ce665788702d

  • SHA1

    c345a53e243cf50dda2723763e18577e8d988384

  • SHA256

    5843aa8280819e31b06f61a02cdf2c908c891bed32beb9860843b769a6f14157

  • SHA512

    f22d16d5b9314a8f5d60e0d3f8269dc0f141ddf43eab978b15cc174e66f1c71de3df676976d69a6e1f5c20e2c017e2fbd327515351f9abe4dc32f3900d11d0d2

  • SSDEEP

    6144:Wwjg4HV406PH3SM/52tGk2RZ7DkHis8D4jtpGvNb/a:WYJV406B/UtGkkZ7DKit4jtqb/a

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
  • 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\5843aa8280819e31b06f61a02cdf2c908c891bed32beb9860843b769a6f14157.exe
    "C:\Users\Admin\AppData\Local\Temp\5843aa8280819e31b06f61a02cdf2c908c891bed32beb9860843b769a6f14157.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1924

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/1924-1-0x0000000001B60000-0x0000000001C60000-memory.dmp

          Filesize

          1024KB

        • memory/1924-2-0x0000000000400000-0x000000000063B000-memory.dmp

          Filesize

          2.2MB

        • memory/1924-3-0x0000000000400000-0x0000000001A1B000-memory.dmp

          Filesize

          22.1MB

        • memory/1924-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/1924-64-0x0000000000400000-0x0000000001A1B000-memory.dmp

          Filesize

          22.1MB

        • memory/1924-65-0x0000000000400000-0x000000000063B000-memory.dmp

          Filesize

          2.2MB