Analysis

  • max time kernel
    126s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 10:20

General

  • Target

    33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97.exe

  • Size

    698KB

  • MD5

    4b7c6964bbdfdee992770567b303a31f

  • SHA1

    0d444f31d79f72a55def0f9b7679b5b37a29c597

  • SHA256

    33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

  • SHA512

    f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

  • SSDEEP

    12288:/7zMzuX0JUXu8pWeuvmGSGjh87DkUQMgAg:HYuX0JUXu8MHHSGjhGkUQ

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 15 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 15 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 20 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97.exe
    "C:\Users\Admin\AppData\Local\Temp\33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "GoogleUpdate" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "GoogleUpdate" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe.lnk"
        3⤵
        • Adds Run key to start application
        PID:1864
    • C:\Users\Admin\AppData\Local\Temp\33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97.exe
      "C:\Users\Admin\AppData\Local\Temp\33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:240
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
            5⤵
              PID:1992
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
              5⤵
                PID:1696

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scripting

      1
      T1064

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Scripting

      1
      T1064

      Modify Registry

      1
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
        Filesize

        102B

        MD5

        e9027e0b06726210c49955f1a48816ee

        SHA1

        af19815b02edf58bead15244782cc724e3f2a697

        SHA256

        479d8134b547bdf2ec16a0dc1e4276e360646d93e2bc891d577c2a97b535b9c3

        SHA512

        59c1e8fbc5d6df0995e41d17324db1fcbc85d8aaf3b214f3395c5a93038ad1ef0860c3c4f1f50a9f1ad5a61850f4a221b5b581c47ae0ea4d2e83d6d32c05123c

      • C:\Users\Admin\AppData\Local\Temp\holdermail.txt
        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • \Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • \Users\Admin\AppData\Roaming\Windows Update.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • \Users\Admin\AppData\Roaming\Windows Update.exe
        Filesize

        698KB

        MD5

        4b7c6964bbdfdee992770567b303a31f

        SHA1

        0d444f31d79f72a55def0f9b7679b5b37a29c597

        SHA256

        33f644cbe1d6eab6b295d460cb7d7545b1092f7128457093f20859b361f02a97

        SHA512

        f4790dabc8a013bafac72cfaa8bfb7ccb745590cf6aaff7a0498b3775858ae48a9f71fc4aa53827d764a4332b1f118f925dd6cec70dc7db3e50a79f71dfda181

      • memory/240-101-0x0000000000E26000-0x0000000000E37000-memory.dmp
        Filesize

        68KB

      • memory/240-99-0x0000000074570000-0x0000000074B1B000-memory.dmp
        Filesize

        5.7MB

      • memory/240-81-0x0000000000000000-mapping.dmp
      • memory/240-87-0x0000000000E26000-0x0000000000E37000-memory.dmp
        Filesize

        68KB

      • memory/240-86-0x0000000074570000-0x0000000074B1B000-memory.dmp
        Filesize

        5.7MB

      • memory/516-59-0x0000000000000000-mapping.dmp
      • memory/1372-57-0x0000000000180000-0x00000000001C0000-memory.dmp
        Filesize

        256KB

      • memory/1372-70-0x0000000074B20000-0x00000000750CB000-memory.dmp
        Filesize

        5.7MB

      • memory/1372-56-0x0000000074B20000-0x00000000750CB000-memory.dmp
        Filesize

        5.7MB

      • memory/1372-54-0x0000000076B51000-0x0000000076B53000-memory.dmp
        Filesize

        8KB

      • memory/1372-55-0x0000000074B20000-0x00000000750CB000-memory.dmp
        Filesize

        5.7MB

      • memory/1376-107-0x0000000074B20000-0x00000000750CB000-memory.dmp
        Filesize

        5.7MB

      • memory/1376-103-0x0000000000400000-0x000000000048C000-memory.dmp
        Filesize

        560KB

      • memory/1376-96-0x0000000000485AEE-mapping.dmp
      • memory/1376-105-0x0000000074B20000-0x00000000750CB000-memory.dmp
        Filesize

        5.7MB

      • memory/1376-100-0x0000000000400000-0x000000000048C000-memory.dmp
        Filesize

        560KB

      • memory/1696-121-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1696-119-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1696-118-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1696-115-0x0000000000442628-mapping.dmp
      • memory/1696-114-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1864-60-0x0000000000000000-mapping.dmp
      • memory/1872-64-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-71-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-62-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-61-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-66-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-85-0x0000000074570000-0x0000000074B1B000-memory.dmp
        Filesize

        5.7MB

      • memory/1872-75-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-68-0x0000000000485AEE-mapping.dmp
      • memory/1872-78-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1872-69-0x0000000000140000-0x00000000001CC000-memory.dmp
        Filesize

        560KB

      • memory/1992-108-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/1992-113-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/1992-112-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/1992-109-0x0000000000411654-mapping.dmp
      • memory/1992-122-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB