Analysis

  • max time kernel
    91s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 00:52

General

  • Target
    8af750c32cfbf7e5649eee174fd374e4.exe
  • Size 255KB
  • Sample240203-a8dqcsdbb9
  • SHA256 40aa21616df5fc1afdf7303ee761015e8a2b7eb148b13656b54d498ecb6ca932
  • 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\8af750c32cfbf7e5649eee174fd374e4.exe
    "C:\Users\Admin\AppData\Local\Temp\8af750c32cfbf7e5649eee174fd374e4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3668
    • C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\515752a4402ac.exe
      .\515752a4402ac.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1424

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        515752a4402e3.tlb

        • Path C:\ProgramData\Broowsee2sAAvye\515752a4402e3.tlb
        • Size 18KB
        • SHA256 ac3a1daa32b1c489f9c2f4413ab35c4fc90b54a52ede0fb53276666e6eeef16f
        • MD5 SHA1 SHA512 SSDEEP

        uninstall.exe

        • Path C:\ProgramData\Broowsee2sAAvye\uninstall.exe
        • Size 48KB
        • SHA256 a76272ed3bbf23308782a308d428ee805ec77fbb622a830af26cb0ddbbf7377b
        • MD5 SHA1 SHA512 SSDEEP

        515752a4402ac.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\515752a4402ac.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        515752a4402e3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\515752a4402e3.dll
        • Size 115KB
        • SHA256 d4bb7937b36973cbf3b12c9500c25ed34103944a69bad9162f3b98f39474529c
        • MD5 SHA1 SHA512 SSDEEP

        515752a4400f39.39034861.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\515752a4400f39.39034861.js
        • Size 4KB
        • SHA256 d90293d090ef1ee3dfd7c1cca0bb754c93806a9581029fc713183390767cbdef
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\background.html
        • Size 161B
        • SHA256 6ebe0a360e99945f92cf04cc2aa3534442c873abd82eeefa93d513e0a8349544
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\manifest.json
        • Size 507B
        • SHA256 dc43a5b929d3bec52c6581234bd3b229c0a050c7a2a8db07bf9e15f9b0ece810
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\jgfmoiloiaofnlnljjkcocdlmeegieol\sqlite.js
        • Size 1KB
        • SHA256 5b9d53bbba504da8a8fe8d137fd48d7960770e68d3e4d6d45f61cfac591f765a
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\settings.ini
        • Size 6KB
        • SHA256 c4c20fa66a0033bca77539a284904e9fa104251d7eca34902aee8f1235344cff
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 7953de1285ccde56c07c0ff32dc44ccd480ad2977380af30609cbc2cb979581b
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 04548a16d7708e39fa195462739cf383b0fa62e18e4eadb4543fe550ff5592d3
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 3f392face2cf0e85fbea42f475a13eb01ed2a5dd84e57116f97d717adcdb29cc
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 7d55082a31c17b05efa9fe12c91bcccc8d1282e9c361cad06a70f7553ebdba21
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5256.tmp\[email protected]\install.rdf
        • Size 609B
        • SHA256 1e2128ad83fea80f5dd8aa7d2fb2c79476cf7cde358edf3e7734f50332a8cd84
        • MD5 SHA1 SHA512

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsf52E4.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsf52E4.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/1424-78-0x0000000074830000-0x000000007483A000-memory.dmp