Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 23:05

General

  • Target
    9a2685e9034914b7c8381fbafcf00ee1.exe
  • Size 249KB
  • Sample240213-22spgsbc2v
  • SHA256 6d5fad66f8931dcf8ee3223c0462a2e5da92e77af9e241301646ce8460124692
  • 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\9a2685e9034914b7c8381fbafcf00ee1.exe
    "C:\Users\Admin\AppData\Local\Temp\9a2685e9034914b7c8381fbafcf00ee1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\50d925e6334af.exe
      .\50d925e6334af.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2996

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

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

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 e2ea4f4afeb5fda677909f36953789de53da7674fe5cce886956954d8012ae8c
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 e2d2363f9a40a52810b96540a48f9c3ce2018015f6a1a6181292726529bc140c
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 c5be8a5836bd5e92acc991e9555f054ff41890828b8d0588a335b4db5babfa27
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 61c67cd7aab1f26674e1389efc74afc5f5c3ba2fad31e10edfc1025ce6244f70
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 6dc54047a9ab9369ea224991316b14c49d210618b8addeaaa40d51868b0b7732
        • MD5 SHA1 SHA512

        50d925e6334af.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\50d925e6334af.exe
        • Size 70KB
        • SHA256 5e74f0e710c067ad82301c7c14ed6afb138f974f351042cfe0ecd275cea2612c
        • MD5 SHA1 SHA512 SSDEEP

        50d925e6334e8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\50d925e6334e8.dll
        • Size 115KB
        • SHA256 73c44d8943947e3cf9ecabdeea4d9a37652614f5490a1f972816be4123795125
        • MD5 SHA1 SHA512 SSDEEP

        50d925e6334e8.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\50d925e6334e8.tlb
        • Size 2KB
        • SHA256 a602c790bcf424c154a082a88a495b256dd5456f627943568c358c74f606c568
        • MD5 SHA1 SHA512

        bnmllalbefkkecnmmobgcpokfijiecij.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\bnmllalbefkkecnmmobgcpokfijiecij.crx
        • Size 8KB
        • SHA256 5a22e99776d8111051c5ab7a921ae9159cef8a2a7688091ebb7fb4d9e585f817
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6A72.tmp\settings.ini
        • Size 6KB
        • SHA256 a1c79bc7d7fb4c79cbd638226792fc63b473f49f894ce8d75eb32e75dda4a435
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk6CC5.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk6CC5.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/2996-52-0x00000000745C0000-0x00000000745CA000-memory.dmp