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Overview

overview

10

Static

static

3

43fefcf790...82.exe

windows7-x64

10

43fefcf790...82.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    92s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/07/2024, 06:06

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General

  • Target

    43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282.exe

  • Size

    2.4MB

  • MD5

    b618c6daef256eeded4cc8c92b5f7110

  • SHA1

    f4775fb13f91ac4dede2f2bd24bb0170851923e7

  • SHA256

    43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282

  • SHA512

    27b526f5f821dc74f1a555795a14c74e5532898681dfebc4ddc08df334fccd60feea931e9db038056df28a509cfc813cd281db3ad382072d52aaae57ecc0f2e6

  • SSDEEP

    49152:HIChsgHpNPYI9N/DsLps9bOULnDs4g3kGh8haNZ+OmFIYk4xO:oZgHTwI9N/oL8Osn9pGIaf+qY5

Score
10/10
stealcnicediscoveryspywarestealer

Malware Config

Extracted

Family

stealc

Botnet

Nice

C2

http://85.28.47.30

Attributes
  • url_path

    /920475a59bac849d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

    stealerstealc
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

    discovery
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282.exe
    "C:\Users\Admin\AppData\Local\Temp\43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1444
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    Download Submit

  • C:\ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    Download Submit

  • memory/2816-0-0x00000000001D0000-0x0000000000DC9000-memory.dmp

    Filesize

    12.0MB

    Download

  • memory/2816-1-0x000000007F420000-0x000000007F7F1000-memory.dmp

    Filesize

    3.8MB

    Download

  • memory/2816-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

    Download

  • memory/2816-75-0x00000000001D0000-0x0000000000DC9000-memory.dmp

    Filesize

    12.0MB

    Download

  • memory/2816-76-0x000000007F420000-0x000000007F7F1000-memory.dmp

    Filesize

    3.8MB

    Download