Analysis

  • max time kernel
    93s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2024, 16:09

General

  • Target
    9c1a698d004271dbcdc73a8a0d1dd1ff.exe
  • Size 250KB
  • Sample240214-tlsesafb2x
  • SHA256 3a77822af6120aaa9c8129c99c2504a54bf17af803a0399be1687a70042d17c3
  • 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.

  • 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\9c1a698d004271dbcdc73a8a0d1dd1ff.exe
    "C:\Users\Admin\AppData\Local\Temp\9c1a698d004271dbcdc73a8a0d1dd1ff.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\5104e65109bf8.exe
      .\5104e65109bf8.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:3124

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

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

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 704366a357b2c2721c34c24e719bff1773755cf4ca85831a64cc3c8769ec77bb
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 2c38c68e8bf205e9f94a9f16f6fb329cf3c370a281f96354a4c7304266849f5c
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 d0b391cbab672a24590a8146fa4038cca03b773c19f7748b828b310b1afd2367
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 cf4cacce3d82f922d29d346e2a970abc4626131ce9f135032c1dda2e203e2710
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 91bd989c53b498d63dae7cccd512c6c688007f19293f794279a417a587c84aaa
        • MD5 SHA1 SHA512

        5104e65109bf8.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\5104e65109bf8.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        5104e65109c31.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\5104e65109c31.dll
        • Size 118KB
        • SHA256 67014a6fc8a77ae480dae9b09f800a1f40a40399ef967f86843a80eb4c9eb470
        • MD5 SHA1 SHA512 SSDEEP

        5104e65109c31.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\5104e65109c31.tlb
        • Size 2KB
        • SHA256 0a94d2086eb6ac57ba5ee365d3f6f64f33e7c8d18419f04715460bc04ebddf2d
        • MD5 SHA1 SHA512

        5104e65109a0b5.30207107.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\5104e65109a0b5.30207107.js
        • Size 4KB
        • SHA256 dbef7ed8ca81d9b3489e12c662e767207981e6750756a9f13833f8c3e0cb0b45
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\background.html
        • Size 161B
        • SHA256 69e7a6c9efcb32aa947f9e83b8dc5846f6f5bb9d5acc3dddab88e2a42f19b870
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\manifest.json
        • Size 478B
        • SHA256 e15ef287b8e6853958efe9c2b2ea5316ad6a2828b5cc61e0baac56e35e7fb84e
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\kkhdkogfliaamnidlcpdmlfnigooihai\sqlite.js
        • Size 1KB
        • SHA256 eb867ada4b62722ea4a9e81a104eb6184314273437e322294029fd57362bf78b
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS7D9C.tmp\settings.ini
        • Size 6KB
        • SHA256 b362da21ba2fcb85c01151e753f020916bc284acc817e1b255fd9bf65cede134
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsh7FFE.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsh7FFE.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/3124-79-0x00000000748B0000-0x00000000748BA000-memory.dmp