Analysis

  • max time kernel
    140s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    02/02/2024, 22:55

General

  • Target

    VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe

  • Size

    334KB

  • MD5

    00c7e24b52d0f69c114772ed0a27f912

  • SHA1

    25e09824323c31d4fb278acb57a35e65c753ec64

  • SHA256

    0577ada4871e64c61659a7d5a3d84074a40cfcef27a61eec48e5d19f78d3b127

  • SHA512

    93485e74dd1c17f1a0dbede36d76825a0b74683dc5f50e13f6d4fe078eaf9de7071d7ff20ba710d4a9920278aab8e906bfe954060643a24e70a2a0bda8b71946

  • SSDEEP

    6144:0e3446lL8yVZolmUyMGYXFrlSdjsFodY+qTOO8g/Xb/PmQKa3dAtnJls:D6p35FMsOozqT7/L3FKa3dAtJu

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 5 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 3 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Installs/modifies Browser Helper Object
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies Internet Explorer Protected Mode
    • Modifies Internet Explorer Protected Mode Banner
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" /s "C:\Windows\system32\tdcxjoeaiqqnv.dll"
      2⤵
      • Adds Run key to start application
      • Installs/modifies Browser Helper Object
      • Maps connected drives based on registry
      • Modifies registry class
      PID:2704
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2224 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2576

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Cab5BB9.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar5BEB.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • \Users\Admin\AppData\Local\Temp\nsi4367.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • \Users\Admin\AppData\Local\Temp\nsi4B54.tmp.dll

          Filesize

          282KB

          MD5

          3f2d4a9f33af3e0d07158391f141fbac

          SHA1

          49cafcca1de589fcf2906abf4d39769f36cd6e30

          SHA256

          4af4544a7186f81c4a0b6a77eb25540824ab261bd75db18874003498a04edaa8

          SHA512

          597896131750dd276d4d2c5ec84dffdad0d5c65507a18fd616ce841bb8ee3ec7ffcf27698b4f419a89d1805b796c675698945186202958edb977aadaf20a0650

        • memory/2704-24-0x00000000406E0000-0x00000000407A0000-memory.dmp

          Filesize

          768KB

        • memory/2704-25-0x00000000001E0000-0x00000000001E2000-memory.dmp

          Filesize

          8KB

        • memory/2704-26-0x00000000406E0000-0x00000000407A0000-memory.dmp

          Filesize

          768KB

        • memory/3052-14-0x00000000406E0000-0x00000000407A0000-memory.dmp

          Filesize

          768KB

        • memory/3052-19-0x0000000002440000-0x0000000002500000-memory.dmp

          Filesize

          768KB

        • memory/3052-22-0x00000000406E0000-0x00000000407A0000-memory.dmp

          Filesize

          768KB