Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.acsbaroda.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Admin1975*

Signatures

  • HawkEye

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

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 16 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • 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 60 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe
    "C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe"
    1⤵
    • Loads dropped DLL
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1652
    • 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:2044
      • 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:2016
      • 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:2036
        • 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:1564
          • 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:1924
          • 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⤵
              PID:328

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • 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

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

        Filesize

        856KB

        MD5

        6796097989ff8aa921d83d2a3553bb21

        SHA1

        ccd7805053b00b3e14b703517662a0036f95acbb

        SHA256

        5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

        SHA512

        12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

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

        Filesize

        856KB

        MD5

        6796097989ff8aa921d83d2a3553bb21

        SHA1

        ccd7805053b00b3e14b703517662a0036f95acbb

        SHA256

        5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9

        SHA512

        12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae

      • memory/328-99-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/328-94-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/328-95-0x0000000000442628-mapping.dmp

      • memory/328-98-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/328-103-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/1564-72-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-82-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-80-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-69-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-70-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-92-0x00000000001C5000-0x00000000001D6000-memory.dmp

        Filesize

        68KB

      • memory/1564-74-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-75-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1564-76-0x000000000048599E-mapping.dmp

      • memory/1564-86-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/1564-100-0x00000000001C5000-0x00000000001D6000-memory.dmp

        Filesize

        68KB

      • memory/1564-84-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/1652-57-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/1652-66-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/1652-56-0x0000000000556000-0x0000000000567000-memory.dmp

        Filesize

        68KB

      • memory/1652-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

        Filesize

        8KB

      • memory/1652-67-0x0000000000556000-0x0000000000567000-memory.dmp

        Filesize

        68KB

      • memory/1652-55-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/1924-93-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1924-91-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1924-88-0x0000000000411654-mapping.dmp

      • memory/1924-87-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1924-101-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2016-59-0x0000000000000000-mapping.dmp

      • memory/2036-85-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/2036-68-0x00000000740E0000-0x000000007468B000-memory.dmp

        Filesize

        5.7MB

      • memory/2036-62-0x0000000000000000-mapping.dmp

      • memory/2036-78-0x0000000000C16000-0x0000000000C27000-memory.dmp

        Filesize

        68KB

      • memory/2044-58-0x0000000000000000-mapping.dmp