Analysis

  • max time kernel
    144s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 19:17

General

  • Target

    1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443.exe

  • Size

    502KB

  • MD5

    022425300a675b63a39b87367eb479d6

  • SHA1

    8ebaf81c0fdc92943d144f8fc0eabe3d3a31401c

  • SHA256

    1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443

  • SHA512

    182aace96b3763001d476e2fcb5b975d928cd25cdd727f3512d7a7534cd0d076b3adeebc1d85dd06aa2a074678cde883a48897a3003ac46f350ab78e362be14c

  • SSDEEP

    6144:AbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9vH8:AQtqB5urTIoYWBQk1E+VF9mOx9U

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443.exe
    "C:\Users\Admin\AppData\Local\Temp\1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:764
      • 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"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1008
      • 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\holderwb.txt"
        3⤵
          PID:1728

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      102B

      MD5

      c5c2661daadc8c8f4ecd7a26035de944

      SHA1

      bed4c3fdc525106c6ed26a2c66ccbb33e2a18c10

      SHA256

      d6dcc4249e0fccb074dace3f2b064ec52aaa55086b85ed6f1528f0eeccb5cb32

      SHA512

      6d69486525b21e6a9ed969b121d35ca442c5e06a512149c10e68e2aeac1b09a8788e2f1505f72c644abe8c7212c3d8d0fec9d61cb092a6a641cef5aa73873e5f

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      Filesize

      502KB

      MD5

      022425300a675b63a39b87367eb479d6

      SHA1

      8ebaf81c0fdc92943d144f8fc0eabe3d3a31401c

      SHA256

      1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443

      SHA512

      182aace96b3763001d476e2fcb5b975d928cd25cdd727f3512d7a7534cd0d076b3adeebc1d85dd06aa2a074678cde883a48897a3003ac46f350ab78e362be14c

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

      Filesize

      502KB

      MD5

      022425300a675b63a39b87367eb479d6

      SHA1

      8ebaf81c0fdc92943d144f8fc0eabe3d3a31401c

      SHA256

      1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443

      SHA512

      182aace96b3763001d476e2fcb5b975d928cd25cdd727f3512d7a7534cd0d076b3adeebc1d85dd06aa2a074678cde883a48897a3003ac46f350ab78e362be14c

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

      Filesize

      502KB

      MD5

      022425300a675b63a39b87367eb479d6

      SHA1

      8ebaf81c0fdc92943d144f8fc0eabe3d3a31401c

      SHA256

      1938e8b37120c2998918a2c857fcdad85d41df14cb83f9b9c70aa006a4fea443

      SHA512

      182aace96b3763001d476e2fcb5b975d928cd25cdd727f3512d7a7534cd0d076b3adeebc1d85dd06aa2a074678cde883a48897a3003ac46f350ab78e362be14c

    • memory/764-57-0x0000000000000000-mapping.dmp

    • memory/764-70-0x0000000074C70000-0x000000007521B000-memory.dmp

      Filesize

      5.7MB

    • memory/764-62-0x0000000074C70000-0x000000007521B000-memory.dmp

      Filesize

      5.7MB

    • memory/1008-64-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1008-65-0x0000000000411654-mapping.dmp

    • memory/1008-68-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1008-69-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1008-71-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1504-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

      Filesize

      8KB

    • memory/1504-61-0x0000000074C70000-0x000000007521B000-memory.dmp

      Filesize

      5.7MB

    • memory/1504-55-0x0000000074C70000-0x000000007521B000-memory.dmp

      Filesize

      5.7MB

    • memory/1728-73-0x0000000000442628-mapping.dmp

    • memory/1728-72-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1728-76-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1728-77-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1728-79-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB