Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    12/03/2024, 16:18

General

  • Target
    A. STUCKI COMPANY, Chase Bank Authorization Letter.pdf
  • Size 88KB
  • Sample240312-tsfdssfd97
  • SHA256 8ab7575e7baaffe69f63197e45e044885aed3029ab51274c682ae549f6341cbc
  • MD5 SHA1 SHA512 SSDEEP
Score
1/10

Malware Config

Signatures

  • 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 20 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • 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\A. STUCKI COMPANY, Chase Bank Authorization Letter.pdf"
    1⤵
    • 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:2712
    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c --type=collab-renderer --proc=1960
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2240
        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe
          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe" GetChannelUri
          4⤵
            PID:1932
      • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c
        2⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2840
        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c --type=collab-renderer --proc=2840
          3⤵
            PID:5116
        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c
          2⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:904
          • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
            "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c --type=collab-renderer --proc=904
            3⤵
              PID:3308
          • 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
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2284
            • 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=5A60877397959B32F862F42418C16041 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
              3⤵
                PID:1980
              • 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=E954CA50F0123F00FB795719B60CF4BA --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=E954CA50F0123F00FB795719B60CF4BA --renderer-client-id=2 --mojo-platform-channel-handle=1784 --allow-no-sandbox-job /prefetch:1
                3⤵
                  PID:3196
                • 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=09626BEA1E5FADDE334E9BCAA7FE4305 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                  3⤵
                    PID:2976
                  • 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=C4AD9A13845079621E7F04A40202CE6E --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=C4AD9A13845079621E7F04A40202CE6E --renderer-client-id=5 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
                    3⤵
                      PID:2188
                    • 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=B9FFBBFC71460082A7C132952750989C --mojo-platform-channel-handle=2484 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                      3⤵
                        PID:5056
                      • 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=338D3DDE3D9F5AB8AA2129432A1B02B2 --mojo-platform-channel-handle=2720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                        3⤵
                          PID:2112
                      • 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
                        2⤵
                          PID:2892
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:3740

                        Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              ReaderMessages

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
                              • Size 36KB
                              • SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
                              • MD5 SHA1 SHA512 SSDEEP

                              ReaderMessages

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
                              • Size 56KB
                              • SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
                              • MD5 SHA1 SHA512 SSDEEP

                              ReaderMessages

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
                              • Size 64KB
                              • SHA256 3733554d664e3449ecbbfc74af652e741ab8035fa2426ebfa05e2e1778f547bc
                              • MD5 SHA1 SHA512 SSDEEP

                              eac4cf9da8b4acca06ece00ca75105a1.db-wal

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Eureka\AcroCoreSync\Adobe\CoreSync\EntitySync\eac4cf9da8b4acca06ece00ca75105a1.db-wal
                              • Size 32B
                              • SHA256 22fdb100e44ee5509507ecc94e101e34af3765226bf70ed84a9bd7d0b8456625
                              • MD5 SHA1 SHA512

                              EntitySync-2024-03-12.log

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Eureka\AcroCoreSync\CreativeCloud\CoreSync\EntitySync-2024-03-12.log
                              • Size 2KB
                              • SHA256 e930a2f7154384869bfdffff153567ab9146d5d1b75cacf6208b43de7be4dccb
                              • MD5 SHA1 SHA512

                              EntitySync-2024-03-12.log

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Eureka\AcroCoreSync\CreativeCloud\CoreSync\EntitySync-2024-03-12.log
                              • Size 296B
                              • SHA256 78abcdab9498531b35ebf955d8e1a5790072706ecdb2d21d19c95f4d45a66109
                              • MD5 SHA1 SHA512

                              Synchronizer

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
                              • Size 92KB
                              • SHA256 87aa4c64348b534771f03919b5bdca09596e89f6e0cca0a992bb3d290ec4155a
                              • MD5 SHA1 SHA512 SSDEEP

                              Synchronizer

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
                              • Size 92KB
                              • SHA256 85023a770585cb54545268271d291cf635a2e03878285922784b3fbf19474fd2
                              • MD5 SHA1 SHA512 SSDEEP

                              Synchronizer

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
                              • Size 92KB
                              • SHA256 58adae562c37eb8af8492b4fcec405b504026d477f192c82c5a1dbaebf892b77
                              • MD5 SHA1 SHA512 SSDEEP

                              Synchronizer

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
                              • Size 92KB
                              • SHA256 a027cf12f2055635a3020f08e0448b2f0314791260ccd25570426088c5b0e307
                              • MD5 SHA1 SHA512 SSDEEP

                              resource-18

                              • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\resources\resource-18
                              • Size 3.6MB
                              • SHA256 152951ea34b49de148c3d4f11fa81875193576c8aa4a49abc5fa756cd3e12f42
                              • MD5 SHA1 SHA512 SSDEEP

                              B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04

                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04
                              • Size 471B
                              • SHA256 be4be9b9934fd13e8dab8010a103603ff6554cc0150c022abc90f941636c1eae
                              • MD5 SHA1 SHA512

                              B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04

                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04
                              • Size 400B
                              • SHA256 40f8ad7a666ff2aea798e62df05639492fdb40294b4ac1afc5dddb1fb0147c5d
                              • MD5 SHA1 SHA512

                              SharedDataEvents

                              • Path C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents
                              • Size 12KB
                              • SHA256 7cdb5b3c74b28cdf0081e256b4bb25cb0c4d076fed0bfc9d7e5b2d7da599aecb
                              • MD5 SHA1 SHA512 SSDEEP

                              SharedDataEvents

                              • Path C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents
                              • Size 12KB
                              • SHA256 aed52235cf036ed1cc0d8508043c1c0728b205c635d51e2a8ecd297d36b66156
                              • MD5 SHA1 SHA512 SSDEEP

                              addressbook.acrodata

                              • Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\addressbook.acrodata
                              • Size 5.3MB
                              • SHA256 793125c5420b86d763c7c3fd5191d0448480732551b1e5dc10f09eefb05b3380
                              • MD5 SHA1 SHA512 SSDEEP

                              addressbook.acrodata

                              • Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\addressbook.acrodata
                              • Size 14KB
                              • SHA256 06a576fc14e995c437b26c0d150b4e84cd745e7cedfd972a84b42b51c842fc9b
                              • MD5 SHA1 SHA512 SSDEEP

                              memory/2712-276-0x0000000010960000-0x0000000010AAD000-memory.dmp