Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 11:12

General

  • Target

    fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8.exe

  • Size

    985KB

  • MD5

    5d2da9b42ecb25a2ef75a3df61cce0f3

  • SHA1

    ab1f675356123b518aea542d0b4d7535c490bf1a

  • SHA256

    fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

  • SHA512

    5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

  • SSDEEP

    24576:7wZc+Mn5x6G+zuRrCtMRYMVi+1iJA3KaGco3SjA6f1Gvz4r:7X9f6G2uN6M8iwdsAm1q

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 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 24 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 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 6 IoCs
  • Drops file in Windows directory 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 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8.exe
    "C:\Users\Admin\AppData\Local\Temp\fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Users\Admin\AppData\Local\Temp\fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8.exe
      "C:\Users\Admin\AppData\Local\Temp\fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1044
      • 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
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1372
        • 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: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\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:112
          • 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"
            5⤵
              PID:368
            • 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\holderprodkey.txt"
              5⤵
                PID:1700
              • 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\holderskypeview.txt"
                5⤵
                  PID:1080

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          102B

          MD5

          568198f493dd4d7271c038eb9df14b10

          SHA1

          6918dd233dd76f484992f2cc20cb20af1d35fb89

          SHA256

          375741188d8e2cf3b8adf006b0ab62cfc4529b363ecf92d85cd76c6d26ed18e7

          SHA512

          ecaa22981f909d5d63c238d124bbe3b496baca3cd36d6fb80644c68b620abcc4eefed65137e962d81fa22eb1dad5f6e8030c65aa2265374d95877eb43ec51106

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

          Filesize

          1KB

          MD5

          77cb34ce76be9099649a0b1b13a019e3

          SHA1

          4ea05e97b5d183c532a2e5c322f7379eb8603980

          SHA256

          fb50d9d26eee22484ea63f95ac3ce6ac329a4f020c2b73bbc8de859080bb3036

          SHA512

          6288a9436867545636f64c3679bb73699c92b42071c17aad0b9365b533aa8bfc891313220fb9727f638a534453345783c5c8af6bc0460976dec9c53da572c886

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

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Roaming\Microsoft\CLR Security Config\v2.0.50727.312\security.config.cch

          Filesize

          408B

          MD5

          64ac14e92ddd6ac35c3408a78029ec6f

          SHA1

          52bab63d3cd62575e6c6a3a40ffeeb99c30d6917

          SHA256

          8dd379402b3cc58ae46373c5d2c63a1eab7288672fafc5386833648fb5d867ec

          SHA512

          6fd43f35878228e085dd05ec3384be21634fc33b72de8fdf5cc3870ff8c3fe26007324d777f157fc8e42c6fef25511b0a1c764ae5eec57d678920b314a160958

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

          Filesize

          985KB

          MD5

          5d2da9b42ecb25a2ef75a3df61cce0f3

          SHA1

          ab1f675356123b518aea542d0b4d7535c490bf1a

          SHA256

          fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

          SHA512

          5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

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

          Filesize

          985KB

          MD5

          5d2da9b42ecb25a2ef75a3df61cce0f3

          SHA1

          ab1f675356123b518aea542d0b4d7535c490bf1a

          SHA256

          fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

          SHA512

          5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

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

          Filesize

          985KB

          MD5

          5d2da9b42ecb25a2ef75a3df61cce0f3

          SHA1

          ab1f675356123b518aea542d0b4d7535c490bf1a

          SHA256

          fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

          SHA512

          5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch

          Filesize

          514B

          MD5

          a28f5b3714717c8bd517d82867fb275c

          SHA1

          820497b392b5d1cd08f0b9ebe27d44a554d0ea94

          SHA256

          1c06b89648c57190017d393aaf4ae4283b40370677f26bf6e340e2199dede232

          SHA512

          58015989c98d9a659da97f8ec728239d2677a406b44dbd1e91de737c89954fdccc8410f1607a55da078da68f07712a02379bb2b7a311330d1ab77ea2099c8b99

        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch

          Filesize

          874B

          MD5

          a0ef9ff3f20bc8296498425b1139d651

          SHA1

          9f8f21c6d19330ff2543ad12942d157c6156887e

          SHA256

          52cb581bcf7f3a9eee02051cc623509cb3ae422227c043f17a8a2406e7055e78

          SHA512

          7e61884339939b74c4b0a89d9b0d35e9b04e644723c273e2ced2c9bca245bbc5813cf35a85d41a60d96cf40c50baea8cd5e419bbfdac4afeb819b97660177038

        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch

          Filesize

          874B

          MD5

          a0ef9ff3f20bc8296498425b1139d651

          SHA1

          9f8f21c6d19330ff2543ad12942d157c6156887e

          SHA256

          52cb581bcf7f3a9eee02051cc623509cb3ae422227c043f17a8a2406e7055e78

          SHA512

          7e61884339939b74c4b0a89d9b0d35e9b04e644723c273e2ced2c9bca245bbc5813cf35a85d41a60d96cf40c50baea8cd5e419bbfdac4afeb819b97660177038

        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch

          Filesize

          514B

          MD5

          a28f5b3714717c8bd517d82867fb275c

          SHA1

          820497b392b5d1cd08f0b9ebe27d44a554d0ea94

          SHA256

          1c06b89648c57190017d393aaf4ae4283b40370677f26bf6e340e2199dede232

          SHA512

          58015989c98d9a659da97f8ec728239d2677a406b44dbd1e91de737c89954fdccc8410f1607a55da078da68f07712a02379bb2b7a311330d1ab77ea2099c8b99

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

          Filesize

          985KB

          MD5

          5d2da9b42ecb25a2ef75a3df61cce0f3

          SHA1

          ab1f675356123b518aea542d0b4d7535c490bf1a

          SHA256

          fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

          SHA512

          5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

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

          Filesize

          985KB

          MD5

          5d2da9b42ecb25a2ef75a3df61cce0f3

          SHA1

          ab1f675356123b518aea542d0b4d7535c490bf1a

          SHA256

          fc1bf3ec89e6decb97d920558547cadf88e2a7aed3a76efa65bf505d7f515ef8

          SHA512

          5fa781eecd3715b53017989ce8c737d0e760e398631c5088290bbb163b376526ba2c9ea7940b38dbad1ea73f187468bf72369ee22ee48a5e20545c57532b1c41

        • memory/112-106-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/112-100-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/112-101-0x0000000000411714-mapping.dmp

        • memory/112-104-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/112-105-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/368-108-0x0000000000442F04-mapping.dmp

        • memory/368-107-0x0000000000400000-0x0000000000459000-memory.dmp

          Filesize

          356KB

        • memory/368-113-0x0000000000400000-0x0000000000459000-memory.dmp

          Filesize

          356KB

        • memory/368-111-0x0000000000400000-0x0000000000459000-memory.dmp

          Filesize

          356KB

        • memory/1044-65-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-61-0x00000000004EB20E-mapping.dmp

        • memory/1044-55-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-68-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1044-56-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-77-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1044-59-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-58-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-63-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1044-60-0x0000000000400000-0x00000000004F0000-memory.dmp

          Filesize

          960KB

        • memory/1080-125-0x0000000000400000-0x000000000044F000-memory.dmp

          Filesize

          316KB

        • memory/1080-121-0x0000000000400000-0x000000000044F000-memory.dmp

          Filesize

          316KB

        • memory/1080-122-0x000000000043BC50-mapping.dmp

        • memory/1080-127-0x0000000000400000-0x000000000044F000-memory.dmp

          Filesize

          316KB

        • memory/1372-92-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1372-71-0x0000000000000000-mapping.dmp

        • memory/1372-78-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1632-97-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1632-99-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1632-86-0x00000000004EB20E-mapping.dmp

        • memory/1700-115-0x000000000040BEC0-mapping.dmp

        • memory/1700-118-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1700-114-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1700-119-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1716-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

          Filesize

          8KB

        • memory/1716-67-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB

        • memory/1716-69-0x0000000074990000-0x0000000074F3B000-memory.dmp

          Filesize

          5.7MB