Analysis

  • max time kernel
    33s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2024, 16:39

General

  • Target

  • Size

    878KB

  • MD5

    e4d4a59494265949993e26dee7b077d1

  • SHA1

    83e3d0c7e544117d6054e7d55932a7d2dbaf1163

  • SHA256

    5ae57d8750822c203f5bf5e241c7132377b250df36a215dff2f396c8440b82dd

  • SHA512

    efd176555415e0771a22a6ca6f15a82aec14ca090d2599959612db9d8e07065e38a7b82e2bf7be67cbe1494733344879782f5516bb502e0177e7b540c96fa718

  • SSDEEP

    24576:bUWqistOB98g0Z1hPLX2jOmsQl3eW0a92Vdcvd7wR:bUUZ98g0FPLIRl3sa92Hcvd8R

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 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 Program Files directory 3 IoCs
  • Drops file in Windows directory 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 36 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\[email protected]
    "C:\Users\Admin\AppData\Local\Temp\[email protected]"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\RarSFX0\PCDefenderSilentSetup.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1276
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71AA340524A4D9270EA015A138DC85D0 M Global\MSI0000
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\SysWOW64\reg.exe
        "C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528_ /s /f
        3⤵
        • Modifies registry class
        PID:540
      • C:\Windows\SysWOW64\reg.exe
        "C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528_ /s /f
        3⤵
        • Modifies registry class
        PID:784
      • C:\Windows\SysWOW64\reg.exe
        "C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528_ /s /f
        3⤵
        • Modifies registry class
        PID:1148
      • C:\Windows\SysWOW64\reg.exe
        "C:\Windows\SysWOW64\reg.exe" DELETE HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\E8CBA2CF517323A48B5B5539084F2528 /f
        3⤵
        • Modifies registry class
        PID:2336
      • C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe
        "C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:556
        • C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe
          "C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe" Antispyware.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:304
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2632
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003D4" "000000000000039C"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2448
  • C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe
    "C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe
      "C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe" Antispyware.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:2112
  • C:\Program Files\Windows Defender\MSASCui.exe
    "C:\Program Files\Windows Defender\MSASCui.exe"
    1⤵
      PID:2424
    • C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe
      "C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1052

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Config.Msi\f76405e.rbs

            Filesize

            9KB

            MD5

            9ebe73b0da14e32c19ed94445e34a9ee

            SHA1

            77e98228c192a24adeb14d9f02eb4790b67ed3ed

            SHA256

            87e6e733a90474844a05a6c922e6196d1ecd0c8502faeb6ce6b5b873cb6daeac

            SHA512

            5fe5eb18974f56ae66bf9a7a32aaa44d89fb8bbe32ace0ac0f78b12d282a31529fbc4aa5b709d648cd1b2737f38cf24a75513ed18e9093ae92127d6bfb40200e

          • C:\Program Files (x86)\Def Group\PC Defender\Antispyware.exe

            Filesize

            1.4MB

            MD5

            af4761437567f84ffbec44c978ac2634

            SHA1

            488e27e01b629f3c2cd274a3c6572cdb040fc137

            SHA256

            41922380e3a419fea5a794a16e7abe3364c08da6c66fca0ce8f37c20e21ede68

            SHA512

            82694af3458a01040b9753f133e446c32fef105d4d36dfe8a5fa944080f4b6736dc8e4fbe2abb3db6f79ff24f8e1b9f07543c1193410cfa0a3faafd3e1ce096d

          • C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe

            Filesize

            88KB

            MD5

            c2514c216b4b6dac1a4d740126177f29

            SHA1

            c25d7b051339c9d0b1ee109abfb12724a24f130d

            SHA256

            8212f98e9caedd00bab3c3d561055507cd617cc2b2151c956968caeccde66e11

            SHA512

            dfe6dab9e14b539e50eea2b8314f3937f650eded149d1264763ee4d0d045bf1959569cb31e9e7d5bf602e49c68401cde02e2e552ef3d0baca2e4d48c53d78692

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\PCDefenderSilentSetup.msi

            Filesize

            870KB

            MD5

            7f728acab22868ca02cc1ba0a14f5d64

            SHA1

            9e3e82b152447b8bcd27583fbdab7aa91ca4739d

            SHA256

            586f9a9af50b2a3321e77d2b4583741cc4842967af9429cc371534f7179caec4

            SHA512

            9bc8bb97e6d4f18ec484fcd792466cb5df0bf0447cbaa19a41258ef80e599e8a2b2c83c700f32f30bef578b03614af1b554844d051435dc9f510ccbd56686800

          • \Program Files (x86)\Def Group\PC Defender\hook.dll

            Filesize

            41KB

            MD5

            dc973050688bfd27a2d47e0ac2e21abb

            SHA1

            3ff84e8c292051aa7e57439aa44b7beac68b2d71

            SHA256

            e69c437e565390cbc0209e7934136cc68a7caa07cf7341c870dac35ca549b225

            SHA512

            4123df1cb903bff54897e1edd8c8c877e3fff9b81de9919569b3096fac8d80d06f73f005ef1c63269f4b50d7ee1965deb13d473b32f365c8324880ab995a600c

          • memory/1992-26-0x00000000006F0000-0x00000000006F2000-memory.dmp

            Filesize

            8KB

          • memory/2424-156-0x0000000000150000-0x0000000000151000-memory.dmp

            Filesize

            4KB