Analysis

  • max time kernel
    32s
  • max time network
    31s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-12-2022 15:57

General

  • Target

    Letter of Appreciation.pdf

  • Size

    10KB

  • MD5

    320bf1284032d59212cdfa833b9034ad

  • SHA1

    c2cbc3a319fadba938cc8c2158cad91f8cedf14b

  • SHA256

    d2023262b98412180d7aa4169f8349ec47abbc133871006e3100e2344330ec8d

  • SHA512

    05685cb11f44f3210a9e77088ed71442e8e214c22940beb0ec46fdddc0c7480e2201cc0da8a76ec7af20461a2ae51046485bae50232275418c7e94b94e1fac56

  • SSDEEP

    192:yQpML0/LHWmjM9i1ni2U5XqFGTs7p1MZFhJ+DozMULN6N9yTANWVJdzSwl5FfRIK:yQpML0/LHWmjaiw5XqFG4l2fh6olLN6c

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
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 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\Letter of Appreciation.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:3764
    • 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:2984
      • 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=83CC87FD3863F25E6CD3B8E9D72EE66F --mojo-platform-channel-handle=1624 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
          PID:564
        • 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=0D0A2CD5596FC8D33E9C3A24D4E434A5 --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=1 --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=0D0A2CD5596FC8D33E9C3A24D4E434A5 --renderer-client-id=2 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job /prefetch:1
          3⤵
            PID:620
          • 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=0DD4C516B26E54F279DD73613A5CA494 --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=1 --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=0DD4C516B26E54F279DD73613A5CA494 --renderer-client-id=4 --mojo-platform-channel-handle=1980 --allow-no-sandbox-job /prefetch:1
            3⤵
              PID:748
            • 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=5D81B44F263EB3EF0A343E36A620D758 --mojo-platform-channel-handle=2452 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
              3⤵
                PID:3956
            • 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:4268

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/3764-120-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-121-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-122-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-123-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-124-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-125-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-126-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-127-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-129-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-130-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-132-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-133-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-131-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-134-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-135-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-136-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-137-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-138-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-140-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-141-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-143-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-145-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-146-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-148-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-150-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-151-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-153-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-155-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-157-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-160-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-162-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-163-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-165-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-164-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-161-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-159-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-158-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-156-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-154-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-152-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-149-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-147-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-144-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-142-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-139-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-128-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-166-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-167-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-168-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-169-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-170-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-171-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-172-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-173-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-174-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-175-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-176-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-177-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-178-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-179-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-180-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-181-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-182-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB

            • memory/3764-183-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

              Filesize

              1.6MB