Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 21:53

General

  • Target
    671df292056ee457318360657aa0cb84a0ef7159ee9a4460735f043aa5ae6ce7.exe
  • Size 255KB
  • Sample240408-1rtncsch42
  • SHA256 671df292056ee457318360657aa0cb84a0ef7159ee9a4460735f043aa5ae6ce7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 2 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks installed software on the system 1 TTPs

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

  • Drops Chrome extension 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\671df292056ee457318360657aa0cb84a0ef7159ee9a4460735f043aa5ae6ce7.exe
    "C:\Users\Admin\AppData\Local\Temp\671df292056ee457318360657aa0cb84a0ef7159ee9a4460735f043aa5ae6ce7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4556
    • C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\512cf5ad886bb.exe
      .\512cf5ad886bb.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:3860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\Browwsye2suave\uninstall.exe
        • Size 48KB
        • SHA256 a76272ed3bbf23308782a308d428ee805ec77fbb622a830af26cb0ddbbf7377b
        • MD5 SHA1 SHA512 SSDEEP

        512cf5ad886bb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\512cf5ad886bb.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        512cf5ad886f4.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\512cf5ad886f4.dll
        • Size 115KB
        • SHA256 d4bb7937b36973cbf3b12c9500c25ed34103944a69bad9162f3b98f39474529c
        • MD5 SHA1 SHA512 SSDEEP

        512cf5ad886f4.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\512cf5ad886f4.tlb
        • Size 18KB
        • SHA256 ac3a1daa32b1c489f9c2f4413ab35c4fc90b54a52ede0fb53276666e6eeef16f
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 f250e2cb6c71e054a99f8eb9b454c3a20e6d13288546988d889beb2205171442
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 5479350fbecf1c78c8c76d609bc8f4986d8bb31d074fa4e3cbbe36a3ed239ba7
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 f4ad0f88f803cfb2181dd9f9a82237b9740345620b054269a40867094a539eba
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 0cadafe3b7423b6d3aa6e2ffb51f9e2bc2e8ef84eb822f5ac663e224ac327376
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\[email protected]\install.rdf
        • Size 605B
        • SHA256 372af4de44bc8b28bc215c7299c35499a44afa10b06c95ca6b19d29cc65d869b
        • MD5 SHA1 SHA512

        512cf5ad884ba3.55995367.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\512cf5ad884ba3.55995367.js
        • Size 4KB
        • SHA256 a2d6298111f3afb50e6d19a0e5a796b72086e1df865eb718084b012502a29b26
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\background.html
        • Size 161B
        • SHA256 4f7b6dd1746b774825f55d28735113d12653326b0aaa4fccda9f19cfb48c2a5d
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\manifest.json
        • Size 506B
        • SHA256 a39ecbecf15160fd09c974bb5d63652e51f910def275898a5d9fa0b6c0276461
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\klelgjimaplfpmbopfihhiidaphldhmm\sqlite.js
        • Size 1KB
        • SHA256 8a1c941b0a261500e840d4ddb241ed545202bf0801980fedda73183017479f4c
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4314.tmp\settings.ini
        • Size 7KB
        • SHA256 00bf1a82786a87dd9273f157fb961a04f84d062cec6873c9ca3fce99630bffa2
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nse440F.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nse440F.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/3860-78-0x0000000074570000-0x000000007457A000-memory.dmp