Analysis

  • max time kernel
    166s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 04:22

General

  • Target

    eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429.exe

  • Size

    596KB

  • MD5

    eeeef046f5456cfc861fd40c459c6891

  • SHA1

    b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

  • SHA256

    eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

  • SHA512

    82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

  • SSDEEP

    6144:R6ju7BA9luh8zWC82h19oikIIeapv6EQ6/kIIGGGMzaAyFdzDTruVXwpccNfL0d3:t8yAv7apDQCHGG7H++q4LbmS

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 7 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 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 2 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429.exe
    "C:\Users\Admin\AppData\Local\Temp\eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:860
    • 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:1820
      • 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:948
    • C:\Users\Admin\AppData\Local\Temp\eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429.exe
      "C:\Users\Admin\AppData\Local\Temp\eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1800
      • 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:600
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1468
          • 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:1320

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      102B

      MD5

      7a41a2c0ab3c89ea72c9b1a51e66e35a

      SHA1

      86a4f0f045151875dd7434d0b88f9b7631ff091a

      SHA256

      49a57814154518de9f36076b2186250d3d3ff39ece9d646379a189016f655013

      SHA512

      ace2d74a2928cf575d6f5b84b08deaa9f3d226c774c70bfbf4c1f4fe8d8897848c810b02cff6c8721421db5cf4251e1bbb13d03adf3d530448c42493530ba44c

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

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

      596KB

      MD5

      eeeef046f5456cfc861fd40c459c6891

      SHA1

      b37e91ad182fe800e2c0ee08b0dd4c01f5f8fa96

      SHA256

      eb090a048d52c44cea30006c9433e4a856e536bdcdf8ccd279053b6418cd4429

      SHA512

      82407f5343a6a3fa30af975cb4087b395a2eb49ac81acdb48ee86076215823bfc2dfb46503e47ad912ad25514e7e9560e888104cb8d75503fdff69efa6829d1b

    • memory/600-93-0x00000000739C0000-0x0000000073F6B000-memory.dmp
      Filesize

      5.7MB

    • memory/600-75-0x0000000000000000-mapping.dmp
    • memory/600-87-0x00000000739C0000-0x0000000073F6B000-memory.dmp
      Filesize

      5.7MB

    • memory/860-55-0x0000000073F70000-0x000000007451B000-memory.dmp
      Filesize

      5.7MB

    • memory/860-56-0x0000000073F70000-0x000000007451B000-memory.dmp
      Filesize

      5.7MB

    • memory/860-71-0x0000000073F70000-0x000000007451B000-memory.dmp
      Filesize

      5.7MB

    • memory/860-54-0x0000000075071000-0x0000000075073000-memory.dmp
      Filesize

      8KB

    • memory/948-59-0x0000000000000000-mapping.dmp
    • memory/1320-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1320-101-0x0000000000411106-mapping.dmp
    • memory/1320-100-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1320-105-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1468-99-0x0000000073F70000-0x000000007451B000-memory.dmp
      Filesize

      5.7MB

    • memory/1468-97-0x0000000073F70000-0x000000007451B000-memory.dmp
      Filesize

      5.7MB

    • memory/1468-89-0x000000000048266E-mapping.dmp
    • memory/1800-69-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-79-0x00000000739C0000-0x0000000073F6B000-memory.dmp
      Filesize

      5.7MB

    • memory/1800-67-0x000000000048266E-mapping.dmp
    • memory/1800-60-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-65-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-66-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-61-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-72-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1800-63-0x0000000000400000-0x000000000048A000-memory.dmp
      Filesize

      552KB

    • memory/1820-58-0x0000000000000000-mapping.dmp