Analysis

  • max time kernel
    152s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 14:05

General

  • Target

    5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe

  • Size

    856KB

  • MD5

    6796097989ff8aa921d83d2a3553bb21

  • SHA1

    ccd7805053b00b3e14b703517662a0036f95acbb

  • SHA256

    5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

  • SHA512

    12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

  • SSDEEP

    24576:rEe1hYtljbiiIq9r+EpPinL6dTVUnCzoChg9:oeI/jvIq9v86dTVUnCzoCc

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe
    "C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe"
    1⤵
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3228
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\PcHealth.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\PcHealth.exe"
        3⤵
          PID:1492
      • C:\Users\Admin\AppData\Roaming\PcHealth.exe
        "C:\Users\Admin\AppData\Roaming\PcHealth.exe"
        2⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4336
        • C:\Users\Admin\AppData\Roaming\PcHealth.exe
          "C:\Users\Admin\AppData\Roaming\PcHealth.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4840
          • 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"
            4⤵
            • Accesses Microsoft Outlook accounts
            PID:3372
          • 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"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3480

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

    • C:\Users\Admin\AppData\Roaming\PcHealth.exe

      Filesize

      856KB

      MD5

      6796097989ff8aa921d83d2a3553bb21

      SHA1

      ccd7805053b00b3e14b703517662a0036f95acbb

      SHA256

      5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

      SHA512

      12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

    • C:\Users\Admin\AppData\Roaming\PcHealth.exe

      Filesize

      856KB

      MD5

      6796097989ff8aa921d83d2a3553bb21

      SHA1

      ccd7805053b00b3e14b703517662a0036f95acbb

      SHA256

      5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

      SHA512

      12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

    • C:\Users\Admin\AppData\Roaming\PcHealth.exe

      Filesize

      856KB

      MD5

      6796097989ff8aa921d83d2a3553bb21

      SHA1

      ccd7805053b00b3e14b703517662a0036f95acbb

      SHA256

      5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

      SHA512

      12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

    • memory/1492-135-0x0000000000000000-mapping.dmp

    • memory/3228-133-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/3228-132-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/3228-139-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/3372-151-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3372-147-0x0000000000000000-mapping.dmp

    • memory/3372-150-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3372-148-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3480-155-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/3480-152-0x0000000000000000-mapping.dmp

    • memory/3480-153-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/3480-156-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/3480-158-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/4336-145-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/4336-140-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/4336-136-0x0000000000000000-mapping.dmp

    • memory/4512-134-0x0000000000000000-mapping.dmp

    • memory/4840-146-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/4840-144-0x00000000745F0000-0x0000000074BA1000-memory.dmp

      Filesize

      5.7MB

    • memory/4840-142-0x0000000000400000-0x000000000048C000-memory.dmp

      Filesize

      560KB

    • memory/4840-141-0x0000000000000000-mapping.dmp