Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 10:18

General

  • Target

    4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e.exe

  • Size

    1008KB

  • MD5

    3a4ab7084fe967a029f3c54ab7f9cf52

  • SHA1

    648827cb4d63421ff5fbc6dd04282dc11ca6ca99

  • SHA256

    4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

  • SHA512

    12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

  • SSDEEP

    12288:yfX3sAdDa1oLJNoKwQS9/Vh1IJcXWyPiKFdZJP3t+vlYvhDPlIrvtgpxVcvuS94U:gyo1N6VkJhyPDl3zPlIvnvuxHHGdH

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 12 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Obfuscated with Agile.Net obfuscator 5 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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
  • Adds Run key to start application 2 TTPs 1 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e.exe
    "C:\Users\Admin\AppData\Local\Temp\4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e.exe
      "C:\Users\Admin\AppData\Local\Temp\4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1740
      • 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:1204
        • 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:968
          • 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⤵
            • Accesses Microsoft Outlook accounts
            PID:1696
          • 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:1564

    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

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      102B

      MD5

      ed36f351672516d37f1ebcc7465c8068

      SHA1

      57d8fdcf15119bc926afb93a2f41fa52395cc1df

      SHA256

      5814614277eb5205edc669c8ae8de77f33e33b8a8f0ae3dd8133a7263140ec4d

      SHA512

      be65fef0269c20e439f2f7342195ddb90cb9d4f6a0645eb49f780db3ff3deaf7e7674ea420de37cb43c1585b75a6379103db85fc490fd9a436159150ca9c24ea

    • 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

      1008KB

      MD5

      3a4ab7084fe967a029f3c54ab7f9cf52

      SHA1

      648827cb4d63421ff5fbc6dd04282dc11ca6ca99

      SHA256

      4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

      SHA512

      12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

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

      1008KB

      MD5

      3a4ab7084fe967a029f3c54ab7f9cf52

      SHA1

      648827cb4d63421ff5fbc6dd04282dc11ca6ca99

      SHA256

      4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

      SHA512

      12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

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

      1008KB

      MD5

      3a4ab7084fe967a029f3c54ab7f9cf52

      SHA1

      648827cb4d63421ff5fbc6dd04282dc11ca6ca99

      SHA256

      4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

      SHA512

      12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

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

      1008KB

      MD5

      3a4ab7084fe967a029f3c54ab7f9cf52

      SHA1

      648827cb4d63421ff5fbc6dd04282dc11ca6ca99

      SHA256

      4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

      SHA512

      12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

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

      1008KB

      MD5

      3a4ab7084fe967a029f3c54ab7f9cf52

      SHA1

      648827cb4d63421ff5fbc6dd04282dc11ca6ca99

      SHA256

      4cace28eddc52ee96da50475956e9092200dbd103a8a55761e5c61e85843021e

      SHA512

      12f6a31615919c0fc4b949f529114c65fe8d7e6c14a3ede82e9e4e8b5fa5ac40808fd863e249caa580210d657396f5e13f1bac44c8c30b3cef4c81b57e7c6ff1

    • memory/968-88-0x0000000000485B1E-mapping.dmp
    • memory/968-98-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/968-96-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1204-91-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1204-79-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1204-73-0x0000000000000000-mapping.dmp
    • memory/1204-78-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1564-107-0x0000000000442628-mapping.dmp
    • memory/1564-106-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-110-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-111-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-113-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1696-99-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-100-0x0000000000411654-mapping.dmp
    • memory/1696-105-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-103-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1740-66-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-71-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1740-63-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-57-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-77-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1740-68-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-58-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-64-0x0000000000485B1E-mapping.dmp
    • memory/1740-62-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1740-60-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1976-70-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1976-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
      Filesize

      8KB

    • memory/1976-56-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB

    • memory/1976-55-0x0000000075040000-0x00000000755EB000-memory.dmp
      Filesize

      5.7MB