Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2024, 14:26

General

  • Target
    a213e49d2f281d611c9ab08e8c53193b.exe
  • Size 250KB
  • Sample240224-rr641sec74
  • SHA256 45db75114468bc2e7a490c9642166b5417fd85da630e2565a26cee7297ac3b85
  • 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\a213e49d2f281d611c9ab08e8c53193b.exe
    "C:\Users\Admin\AppData\Local\Temp\a213e49d2f281d611c9ab08e8c53193b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\50fc13d36d744.exe
      .\50fc13d36d744.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

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

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 07158b8963798df4e1505bdbd249c150c3e22802d24e29c9a32107eea27eb353
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 cfe8f51e73937171d811f56b1a99152a6c32e0a226d353fa8d3acea5cf8f89f9
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 9790c5a72a446c58d73d514c6b68b8dc45cf656d5e9e48aa24ec1afab6cd710b
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 dffda8a8926926a4a16c2423e5edc3a9407e2ba9221798fa68126dec255ba2ca
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 0f626c801c00ba56ff9de14e2a0ec1a8489eb2351eb30d96646a85a24fe1fca8
        • MD5 SHA1 SHA512

        50fc13d36d744.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\50fc13d36d744.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        50fc13d36d77c.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\50fc13d36d77c.dll
        • Size 118KB
        • SHA256 67014a6fc8a77ae480dae9b09f800a1f40a40399ef967f86843a80eb4c9eb470
        • MD5 SHA1 SHA512 SSDEEP

        50fc13d36d77c.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\50fc13d36d77c.tlb
        • Size 2KB
        • SHA256 0a94d2086eb6ac57ba5ee365d3f6f64f33e7c8d18419f04715460bc04ebddf2d
        • MD5 SHA1 SHA512

        50fc13d36d57d2.96728470.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\50fc13d36d57d2.96728470.js
        • Size 4KB
        • SHA256 be14785603d0b6201017028cf91dc3f0b6f078ec83bde6d313c0307dbc30c77a
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\background.html
        • Size 161B
        • SHA256 0debe3ebd71a4f0a9682396ed5510bdcda630dd97d27c594a87f64283e5d1d44
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\manifest.json
        • Size 479B
        • SHA256 a631255a7467449ff89bb97a8d97632411076d00bfb8dc84c19abd100e235e7c
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\becjhcjkbbbefcmbelaeiadnnmnbfgea\sqlite.js
        • Size 1KB
        • SHA256 00d694dfc3dd1454a763ac019ca79cc9df1fb0cb549c7c7a21dd8dfa236dcd82
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CE5.tmp\settings.ini
        • Size 6KB
        • SHA256 aeb84b18b9d914c1c56d7a659630ba92e96e23d043e4c88f0974b7d7878422e5
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsz5F38.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsz5F38.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/2704-78-0x0000000074560000-0x000000007456A000-memory.dmp