Analysis

  • max time kernel
    107s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 08:03

General

  • Target

    R2607210998764553.doc

  • Size

    1.9MB

  • MD5

    c37d902c03a12a87e5394f849ae966d3

  • SHA1

    8b4a32210a84fe179b97b211e05bccec0a377789

  • SHA256

    5c783a84eb7784ccab875c4ec73f44f99a6e443ef7c5dcfaaaa9f2e23f71e072

  • SHA512

    1f0b42a167ff8e97c51d269048668ac39f9563e709b125b839b443dfa0e3b499f131a63404a80bf9631859f5fc7165e66844eb31e5b29f0351e03f7fdebfbc9b

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.vngpack.com
  • Port:
    21
  • Username:
    newloggsaa@vngpack.com
  • Password:
    Xpen2000

Signatures

  • HawkEye

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

  • suricata: ET MALWARE HawkEye Keylogger FTP
  • NirSoft MailPassView 6 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\R2607210998764553.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1488
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Users\Admin\AppData\Roaming\name.exe
        "C:\Users\Admin\AppData\Roaming\name.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
          "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
          3⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1928
          • 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:1632
            • 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"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1088

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scripting

      1
      T1064

      Exploitation for Client Execution

      1
      T1203

      Defense Evasion

      Scripting

      1
      T1064

      Modify Registry

      2
      T1112

      Install Root Certificate

      1
      T1130

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        MD5

        91c9ae9c9a17a9db5e08b120e668c74c

        SHA1

        50770954c1ceb0bb6f1d5d3f2de2a0a065773723

        SHA256

        e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

        SHA512

        ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        MD5

        91c9ae9c9a17a9db5e08b120e668c74c

        SHA1

        50770954c1ceb0bb6f1d5d3f2de2a0a065773723

        SHA256

        e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

        SHA512

        ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

      • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • C:\Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • C:\Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • \Users\Admin\AppData\Local\Temp\InstallUtil.exe
        MD5

        91c9ae9c9a17a9db5e08b120e668c74c

        SHA1

        50770954c1ceb0bb6f1d5d3f2de2a0a065773723

        SHA256

        e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

        SHA512

        ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        08d679d4b9a12137756cc9244bd6f017

        SHA1

        580c29bc356057d76873c9c453ed466e1024b7f2

        SHA256

        047f33e6f83796d9fc056d7006a6e8ef69696d63eceb29fb1592bb13a62e79bf

        SHA512

        e6293a802a6f539be11df5f6d83ee113ad98d8e5566d59810a18359ff0756eabe2b10f4c8bbd1e17222aaf45400b8a89d33f0e5786418347dc5213b79d8d7116

      • memory/1088-98-0x0000000000442628-mapping.dmp
      • memory/1088-97-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1088-100-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/1420-60-0x00000000720A1000-0x00000000720A4000-memory.dmp
        Filesize

        12KB

      • memory/1420-61-0x000000006FB21000-0x000000006FB23000-memory.dmp
        Filesize

        8KB

      • memory/1420-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1420-102-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1420-63-0x0000000074FB1000-0x0000000074FB3000-memory.dmp
        Filesize

        8KB

      • memory/1488-77-0x0000000000000000-mapping.dmp
      • memory/1488-78-0x000007FEFB741000-0x000007FEFB743000-memory.dmp
        Filesize

        8KB

      • memory/1632-95-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/1632-91-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/1632-92-0x0000000000411654-mapping.dmp
      • memory/1928-83-0x0000000000400000-0x0000000000488000-memory.dmp
        Filesize

        544KB

      • memory/1928-87-0x0000000000400000-0x0000000000488000-memory.dmp
        Filesize

        544KB

      • memory/1928-89-0x0000000004D60000-0x0000000004D61000-memory.dmp
        Filesize

        4KB

      • memory/1928-90-0x0000000000590000-0x0000000000592000-memory.dmp
        Filesize

        8KB

      • memory/1928-84-0x0000000000480B6E-mapping.dmp
      • memory/1928-94-0x0000000004D65000-0x0000000004D76000-memory.dmp
        Filesize

        68KB

      • memory/1948-82-0x0000000004961000-0x0000000004962000-memory.dmp
        Filesize

        4KB

      • memory/1948-80-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
        Filesize

        4KB

      • memory/1948-79-0x0000000000BA0000-0x0000000000BAB000-memory.dmp
        Filesize

        44KB

      • memory/1948-76-0x00000000008F0000-0x0000000000911000-memory.dmp
        Filesize

        132KB

      • memory/1948-74-0x0000000004960000-0x0000000004961000-memory.dmp
        Filesize

        4KB

      • memory/1948-72-0x0000000001380000-0x0000000001381000-memory.dmp
        Filesize

        4KB

      • memory/1948-69-0x0000000000000000-mapping.dmp