Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/08/2026, 12:12

General

  • Target
    download.pdf
  • Size 5.2MB
  • Sample260813-pc65csyfmc
  • SHA256 48eae2b5032edaaae46fb5da04685c6597996d07f37c364efb1e31582c63eef1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 16 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 12 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\download.pdf"
    1⤵
    • System Location Discovery: System Language Discovery
    • 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:456
    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe
      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe" -c
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3904
      • 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=3904
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:4708
        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe
          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe" GetChannelUri
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2956
    • 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⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2136
      • 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=F6C94C59977D8D147F3E2DB4E6FF4C35 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        PID:412
      • 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=A656BA2C5F1DED44EE85D0B35766C48E --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=A656BA2C5F1DED44EE85D0B35766C48E --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1036
      • 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=6F659245F377BC07D967962C71C48749 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2964
      • 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=A1ED71378AB0FD5939FB224EE72D8E39 --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=A1ED71378AB0FD5939FB224EE72D8E39 --renderer-client-id=5 --mojo-platform-channel-handle=1608 --allow-no-sandbox-job /prefetch:1
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1656
      • 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=EE9605D35B2CE9622D8E375506199CB6 --mojo-platform-channel-handle=1884 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4572
      • 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=18761985DD3771A8DC273B1845089166 --mojo-platform-channel-handle=2888 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3196

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ReaderMessages

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

        ReaderMessages

        • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
        • Size 64KB
        • SHA256 3d0bbee09b7b58a922871d0b54ca5a8f5be1d9859a31f17ea45ba31385d633ba
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Synchronizer

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

        Synchronizer

        • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
        • Size 92KB
        • SHA256 f6c92d5ceec12fff56cedf48681c7c5886a9751c69609c7119e5c5c26171f6ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Synchronizer

        • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\metadata\Synchronizer
        • Size 92KB
        • SHA256 fc54681ff1bf9ba7db70d08351f7c74761b686307206e837b9690099d4ef9e4a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Synchronizer

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

        resource-18

        • Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\Reader\Synchronizer\resources\resource-18
        • Size 4.3MB
        • SHA256 ed7d2fc2c84e03a3b7805b2d7baafae7b5db47bb1cc513d31ee5953453292abb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_49536AB5156BDD74EFF881D01C36A419

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_49536AB5156BDD74EFF881D01C36A419
        • Size 471B
        • SHA256 177bb293cd05097bd3e11bc627c1ce05901e232b74e64098cd01d0faa8b8d236
        • MD5 SHA1 SHA512 TLSH

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_49536AB5156BDD74EFF881D01C36A419

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_49536AB5156BDD74EFF881D01C36A419
        • Size 412B
        • SHA256 e50b0439dfe1735ee50ae505a727ab28b074d24973d209e9e2c29bc531d13979
        • MD5 SHA1 SHA512 TLSH

        SharedDataEvents

        • Path C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents
        • Size 12KB
        • SHA256 ac38f466e4261f0c8b98a7aa698270ea86037e660ce89622d381565cfd16adab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        addressbook.acrodata

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

        addressbook.acrodata

        • Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\addressbook.acrodata
        • Size 6.4MB
        • SHA256 69d8e6484ffeeaa9b1ec6bb8707cdb15fe9cc4e854d1c7a40282c8772f53e1cc
        • MD5 SHA1 SHA512 SSDEEP TLSH