Analysis

  • max time kernel
    39s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    12/07/2024, 06:49

General

  • Target
    x64__setup__build_18957/setup.msi
  • Size 34.8MB
  • Sample240712-hlmnrasfml
  • SHA256 8735b260af2dd098418563efcc05d006f22239ba04108de94dbabc638dfd338f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 13 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\x64__setup__build_18957\setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2896
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B6B7F354A0C25985DBC9E463A78124D0
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:3000
    • C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\UnRAR.exe
      "C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\UnRAR.exe" x -p2161183588a "C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\nijboq.rar" "C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\"
      2⤵
      • Executes dropped EXE
      PID:1796
    • C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\rnpkeys.exe
      "C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\rnpkeys.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:280

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        f77a900.rbs

        • Path C:\Config.Msi\f77a900.rbs
        • Size 25KB
        • SHA256 ad85923b9f65de75d3ecc8fe0b186766d7306a1d702ea1236f5f86548ea81ced
        • MD5 SHA1 SHA512 SSDEEP

        nijboq.rar

        • Path C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\nijboq.rar
        • Size 334KB
        • SHA256 d42015f09eaa5212b07312814d9084c58513682ac68ca9f14bebd6cb94ef850b
        • MD5 SHA1 SHA512 SSDEEP

        rnp.dll

        • Path C:\Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\rnp.dll
        • Size 1.0MB
        • SHA256 de01f704428f539718b7e1872916569318dbca40c04477246335ab1685de9840
        • MD5 SHA1 SHA512 SSDEEP

        MSIA9E6.tmp

        • Path C:\Windows\Installer\MSIA9E6.tmp
        • Size 738KB
        • SHA256 ca763693cc25d316f14a9ebad80ebf00590329550c45adb7e5205486533c2504
        • MD5 SHA1 SHA512 SSDEEP

        MSIAD42.tmp

        • Path C:\Windows\Installer\MSIAD42.tmp
        • Size 1.1MB
        • SHA256 81e0df47bcb2b3380fb0fb58b0d673be4ef1b0367fd2b0d80ab8ee292fc8f730
        • MD5 SHA1 SHA512 SSDEEP

        MSIC086.tmp

        • Path C:\Windows\Installer\MSIC086.tmp
        • Size 364KB
        • SHA256 f9956417af079e428631a6c921b79716d960c3b4917c6b7d17ff3cb945f18611
        • MD5 SHA1 SHA512 SSDEEP

        f77a8fc.msi

        • Path C:\Windows\Installer\f77a8fc.msi
        • Size 34.8MB
        • SHA256 8735b260af2dd098418563efcc05d006f22239ba04108de94dbabc638dfd338f
        • MD5 SHA1 SHA512 SSDEEP

        UnRAR.exe

        • Path \Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\UnRAR.exe
        • Size 494KB
        • SHA256 e51021f6cb20efbd2169f2a2da10ce1abca58b4f5f30fbf4bae931e4ecaac99b
        • MD5 SHA1 SHA512 SSDEEP

        java.exe

        • Path \Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\java.exe
        • Size 49KB
        • SHA256 b8068815d4aa20f0f838fe081d7cb78379b5e82723f78cc1213232ed67226417
        • MD5 SHA1 SHA512 SSDEEP

        rnpkeys.exe

        • Path \Users\Admin\AppData\Roaming\Troxbox Publish\TroxApp\rnpkeys.exe
        • Size 780KB
        • SHA256 14b6f5c640c73cdd99e5834e7a56ab3d2912abe623bf5e41946154dad69e5f26
        • MD5 SHA1 SHA512 SSDEEP