Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/03/2024, 05:08

General

  • Target
    dac483939dae788c4cfc846e1a308b05.exe
  • Size 249KB
  • Sample240321-fs14lscc94
  • SHA256 02b9e13e56cd556783c3759c26d6b324e4af07cb527b87d99255837f1670a456
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • 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.

  • 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\dac483939dae788c4cfc846e1a308b05.exe
    "C:\Users\Admin\AppData\Local\Temp\dac483939dae788c4cfc846e1a308b05.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\50dd80c428797.exe
      .\50dd80c428797.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:3196

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\wxDownload\uninstall.exe
        • Size 48KB
        • SHA256 43c3e8d7aa00a299f084db17e384aa96de508565f82264ee88bd9c7647fa9fc9
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 197883320c4d9537c6fdcbe7cb2240def3a8d19c63607873abdc2cb2b9825269
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 7b450ce16cd070bacab64b8f20c1d7d52685fe7ee9ffa165c043b0d09bca73e7
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 dc9c789dfec697b918154328b664d0a862c9732fd58832f3a976c1aecab67a9f
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 fbff7be9ba1fe5f7abaff99cce987c75785a226cfc8a43e59db8731681d7ead1
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\[email protected]\install.rdf
        • Size 717B
        • SHA256 1a9ef88da6336dde7f0acbaca6b5b134618569d01bfdb340c898518add845b3c
        • MD5 SHA1 SHA512

        50dd80c428797.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\50dd80c428797.exe
        • Size 70KB
        • SHA256 5e74f0e710c067ad82301c7c14ed6afb138f974f351042cfe0ecd275cea2612c
        • MD5 SHA1 SHA512 SSDEEP

        50dd80c4287ce.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\50dd80c4287ce.dll
        • Size 115KB
        • SHA256 73c44d8943947e3cf9ecabdeea4d9a37652614f5490a1f972816be4123795125
        • MD5 SHA1 SHA512 SSDEEP

        50dd80c4287ce.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\50dd80c4287ce.tlb
        • Size 2KB
        • SHA256 a602c790bcf424c154a082a88a495b256dd5456f627943568c358c74f606c568
        • MD5 SHA1 SHA512

        lohfgjafebcobcclklolgelcfikgjihm.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\lohfgjafebcobcclklolgelcfikgjihm.crx
        • Size 8KB
        • SHA256 48257606ae2d375bdc4002d39fd22c7c326c91ec63ecc06bda443f79c0328c55
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS33D1.tmp\settings.ini
        • Size 6KB
        • SHA256 0d8831c0d0b7e516e89182bcc459b8417fa03e8b1386e610a83235e671fe4c3d
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsd349E.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsd349E.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/3196-52-0x0000000074660000-0x000000007466A000-memory.dmp