Analysis

  • max time kernel
    54s
  • max time network
    48s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    25-01-2022 18:40

General

  • Target

    cb7c86b23fe81bcf2a8fedf7273fe0d7.pdf

  • Size

    99KB

  • MD5

    cb7c86b23fe81bcf2a8fedf7273fe0d7

  • SHA1

    c4c22a81b42f1657a8158ac8f98008056511a11c

  • SHA256

    a82e9297da902f3e4c68758bd5eec73e965cd88db7cb34b1c6ab5c1e84dbd8f6

  • SHA512

    af796159d0b3be7778cf15ffb74fd02fc648c04319727e8ed8d82abecbeb1631dad2c703f24d9dcb57f252503c75eb564a3e94a8cde0806674ce3f49bc9353ea

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 4 IoCs
  • 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 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 9 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\cb7c86b23fe81bcf2a8fedf7273fe0d7.pdf"
    1⤵
    • Checks processor information in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2756
    • 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:2856
      • 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=72C1D905AE3978114507E4F152EC3B21 --mojo-platform-channel-handle=1644 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
          PID:3880
        • 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=1292D6752FDC140E76798A8572DE35E1 --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=1292D6752FDC140E76798A8572DE35E1 --renderer-client-id=2 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job /prefetch:1
          3⤵
            PID:3320
          • 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=55225F00A38A7BCD36395B0F9581CEC4 --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=55225F00A38A7BCD36395B0F9581CEC4 --renderer-client-id=4 --mojo-platform-channel-handle=2236 --allow-no-sandbox-job /prefetch:1
            3⤵
              PID:1212
            • 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=396895534059858A857ED6FA9812CD46 --mojo-platform-channel-handle=2368 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
              3⤵
                PID:1228
              • 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=872EA561FA24D35FE6594FAF38DC7AA2 --mojo-platform-channel-handle=2644 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                3⤵
                  PID:596
                • 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=441E73BF26871E676BD525BE440726D9 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                  3⤵
                    PID:1612
                • C:\Windows\SysWOW64\LaunchWinApp.exe
                  "C:\Windows\system32\LaunchWinApp.exe" "https://feedproxy.google.com/%7Er/1eyvgo/aqOO/%7E3/BkSY9tpko7c/uplcv?utm_term=bo%C5%BEanstvena+komedija+cijela+knjiga+pdf"
                  2⤵
                    PID:1876
                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
                  1⤵
                  • Drops file in Windows directory
                  • Modifies Internet Explorer settings
                  • Modifies registry class
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of SetWindowsHookEx
                  PID:3184
                • C:\Windows\system32\browser_broker.exe
                  C:\Windows\system32\browser_broker.exe -Embedding
                  1⤵
                  • Modifies Internet Explorer settings
                  PID:1388
                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                  1⤵
                  • Modifies registry class
                  • Suspicious behavior: MapViewOfSection
                  • Suspicious use of SetWindowsHookEx
                  PID:1468
                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                  1⤵
                  • Drops file in Windows directory
                  • Modifies Internet Explorer settings
                  • Modifies registry class
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2304
                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                  1⤵
                  • Modifies registry class
                  PID:2244
                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                  1⤵
                  • Drops file in Windows directory
                  • Modifies registry class
                  PID:4192

                Network

                MITRE ATT&CK Matrix ATT&CK v6

                Defense Evasion

                Modify Registry

                1
                T1112

                Discovery

                Query Registry

                1
                T1012

                System Information Discovery

                1
                T1082

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
                  MD5

                  c00021478cf5e9618bf131457bf1ef92

                  SHA1

                  f5eed5503603d5cb65b86ffeb43e2f78b8aee671

                  SHA256

                  a5432eb92490df64299b6a859577915e556251da18777b1c4420bbb00f34465f

                  SHA512

                  84972ed5e92381ba26ad59a5e2f925d8133b63cf0fe9a583de00f413f84fc799b3bac768a6bdf99cf9c659667ed6debf335b13f55a8dc57149e422e00609ce55

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_A7725538C46DE2D0088EE44974E2CEBA
                  MD5

                  64e9b8bb98e2303717538ce259bec57d

                  SHA1

                  2b07bf8e0d831da42760c54feff484635009c172

                  SHA256

                  76bd459ec8e467efc3e3fb94cb21b9c77a2aa73c9d4c0f3faf823677be756331

                  SHA512

                  8980af4a87a009f1ae165182d1edd4ccbd12b40a5890de5dbaea4dbf3aeb86edffd58b088b1e35e12d6b1197cc0db658a9392283583b3cb24a516ebc1f736c56

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\F07644E38ED7C9F37D11EEC6D4335E02_C15B120C7F4EE6F1182923868E66174B
                  MD5

                  5ecc28b4be35c72fdbd3178856cb01fb

                  SHA1

                  86979b79dd68ebd6c23b585b85f460d3aeb60012

                  SHA256

                  41b3be93901dd378d15798a143b0fc45308bd6466104051a123e2c041be0d629

                  SHA512

                  d0caf20f274dde9f5b165164abde89919dc28187c82f6d7a9b6bf277aec16385de33e6bcb72e12e3a0167899fc9d92a1933acac27aed8549a3578be786bad594

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
                  MD5

                  7949ebb9d3b8806de558ff743822e85d

                  SHA1

                  680ca87bfab287ec63cac5dabbed5edd0b646acc

                  SHA256

                  c4381da789614e0b072b83ab032974b332a44efc5a7ac0c44e1f2255465cb81b

                  SHA512

                  e502c752c50325aadbf79826dcc8dc83a490a8b9bf6df82662232a6eec5a1cdf8437210ad5eae8b62076ee95ad15fd7bb335357f4ebd5cfddc778f115a5cf472

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_A7725538C46DE2D0088EE44974E2CEBA
                  MD5

                  8e7da2f4e1dedd29da3d9fac22ba8a77

                  SHA1

                  5b272c7db1c1cd48cc947d100ddaf9c03448007d

                  SHA256

                  ae878003354e85bde2deb1dde62347898ec07dc765f66f6d3e03ef4b80f55778

                  SHA512

                  7044cc087d8e3c3c2af1e251e3a1c809f93c4fae6e91e87ab4a1f1b1d7250a9dd71f0d21a868fc379e4b8bb8cc2ef8c1a99a07d4014c8b6f79560b36b1fc7b25

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\F07644E38ED7C9F37D11EEC6D4335E02_C15B120C7F4EE6F1182923868E66174B
                  MD5

                  f15cb2cfe52312ba6334439b85c947ec

                  SHA1

                  66558bcd408d0c65b0eff3ef3699b7d4c02fc700

                  SHA256

                  057b631094b6b3a0514b85724ed1ce3340c7ec8a796d3f8c74f6ef96977baa1d

                  SHA512

                  9b1198ca77ad89c8aea8466078545f28837eb89e670ed74d051d309585e786f015c0c90664a94589163e7a529d250ecfb3149db2978641520f484bbb6870acb2

                • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\Windows\3720402701\1659841449.pri
                  MD5

                  6dfa43a584ed243390dc943abac397c0

                  SHA1

                  665637e060c9da24288944b90b377a309da6d533

                  SHA256

                  4f31fe4baa7a557ed5fc2ccf57b2861946ecea6222200aca124796e251a524ad

                  SHA512

                  9561a2867cf1e73578d0206d4c73e576e2b8c7497ec1db8a69df6a35ca78e84bf01060089e45ec32e5afde6d3b1de26afcd0e411a25b615042ce5bdd575cb6b0

                • memory/596-130-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB

                • memory/1212-122-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB

                • memory/1228-127-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB

                • memory/1612-133-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB

                • memory/3184-136-0x000001DF0DE20000-0x000001DF0E120000-memory.dmp
                  Filesize

                  3.0MB

                • memory/3320-117-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB

                • memory/3880-114-0x00000000771B2000-0x00000000771B3000-memory.dmp
                  Filesize

                  4KB