Resubmissions

20-03-2022 09:45

220320-lref4sbghm 10

20-03-2022 08:52

220320-ks5t1sbca7 10

20-03-2022 07:17

220320-h4fyxsaee6 10

20-03-2022 06:45

220320-hjkrdaabg5 10

Analysis

  • max time kernel
    445s
  • max time network
    449s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20-03-2022 07:17

General

  • Target

    13160edab74cc2dd34653920d4bf56e487fea2fd6adf8249e0be9215ced902b4.pdf

  • Size

    2.6MB

  • MD5

    7f6060451f81564336bd5d9e5c95797a

  • SHA1

    70c756af084d013e703d5e1c0f561eea6cb2f781

  • SHA256

    13160edab74cc2dd34653920d4bf56e487fea2fd6adf8249e0be9215ced902b4

  • SHA512

    c5263836ef7264e48e4166042827340244fe430b490ad41acde7fef378757731e7d3fecfe05c5d75695d32dcba7a13db86bea36366c5f4fb1e0ea3e321032abf

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs
  • Executes dropped EXE 6 IoCs
  • Sets file execution options in registry 2 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 48 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 35 IoCs
  • Modifies data under HKEY_USERS 38 IoCs
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 53 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\13160edab74cc2dd34653920d4bf56e487fea2fd6adf8249e0be9215ced902b4.pdf"
    1⤵
    • Checks processor information in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3112
    • 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:2364
      • 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=0229E06B834A6349040FF289B80A53F7 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        3⤵
          PID:1664
        • 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=2B84D1A9C5F57260A2FD4D5882395D80 --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=2B84D1A9C5F57260A2FD4D5882395D80 --renderer-client-id=2 --mojo-platform-channel-handle=1784 --allow-no-sandbox-job /prefetch:1
          3⤵
            PID:1392
          • 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=14FC12C3930505021A5B1F6F563EDF62 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            3⤵
              PID:3652
            • 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=6A4DA6BFC4F8FA2814FF4305992917D2 --mojo-platform-channel-handle=1780 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
              3⤵
                PID:2456
              • 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=8CBC606049B5E8BCBEDDB1089760B3B5 --mojo-platform-channel-handle=2016 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                3⤵
                  PID:4056
                • 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=7AF6C1767A9004D56EEE70B6F00C7FAB --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=7AF6C1767A9004D56EEE70B6F00C7FAB --renderer-client-id=8 --mojo-platform-channel-handle=2344 --allow-no-sandbox-job /prefetch:1
                  3⤵
                    PID:3660
                • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
                  "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe" /PRODUCT:Reader /VERSION:19.0 /MODE:3
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of SetWindowsHookEx
                  PID:2496
                  • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe
                    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"
                    3⤵
                      PID:2084
                    • C:\ProgramData\Adobe\ARM\S\27770\AdobeARMHelper.exe
                      "C:\ProgramData\Adobe\ARM\S\27770\AdobeARMHelper.exe" /ArmUpdate /MSI FOLDER:"C:\ProgramData\Adobe\ARM\S\27770" /MODE:3 /PRODUCT:Reader /VERSION:19.0 /LANG:ENU
                      3⤵
                      • Executes dropped EXE
                      • Checks computer location settings
                      • Checks whether UAC is enabled
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:392
                      • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
                        "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe" /ArmUpdate /MSI FOLDER:"C:\ProgramData\Adobe\ARM\S\27770" /MODE:3 /PRODUCT:Reader /VERSION:19.0 /LANG:ENU
                        4⤵
                        • Executes dropped EXE
                        • Checks whether UAC is enabled
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of SendNotifyMessage
                        • Suspicious use of SetWindowsHookEx
                        PID:3712
                • C:\Windows\System32\svchost.exe
                  C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
                  1⤵
                  • Modifies data under HKEY_USERS
                  PID:1804
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:3864
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
                    1⤵
                      PID:552
                    • C:\Windows\System32\rundll32.exe
                      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                      1⤵
                        PID:4864
                      • C:\Windows\system32\msiexec.exe
                        C:\Windows\system32\msiexec.exe /V
                        1⤵
                        • Enumerates connected drives
                        • Drops file in Program Files directory
                        • Drops file in Windows directory
                        • Modifies Internet Explorer settings
                        • Modifies data under HKEY_USERS
                        • Modifies registry class
                        • Suspicious use of AdjustPrivilegeToken
                        PID:700
                        • C:\Windows\syswow64\MsiExec.exe
                          C:\Windows\syswow64\MsiExec.exe -Embedding A1293A5875F1D4EA34E4C07FB09A4A79
                          2⤵
                          • Loads dropped DLL
                          PID:3284
                        • C:\Windows\syswow64\MsiExec.exe
                          C:\Windows\syswow64\MsiExec.exe -Embedding 0B753DEECED3745AE692D50D2C22B3F1 E Global\MSI0000
                          2⤵
                          • Loads dropped DLL
                          PID:2512
                        • C:\Windows\syswow64\MsiExec.exe
                          C:\Windows\syswow64\MsiExec.exe -Embedding B16894736819B6C9FA70D5A99CAB3C36
                          2⤵
                          • Loads dropped DLL
                          • Drops file in System32 directory
                          PID:4916
                        • C:\Windows\syswow64\MsiExec.exe
                          C:\Windows\syswow64\MsiExec.exe -Embedding 5AE30A7921BC52578AB69986910AA41C E Global\MSI0000
                          2⤵
                          • Loads dropped DLL
                          • Modifies Internet Explorer settings
                          • Modifies registry class
                          • Suspicious behavior: EnumeratesProcesses
                          PID:4768
                        • C:\Windows\Installer\MSI9869.tmp
                          "C:\Windows\Installer\MSI9869.tmp" /b 2 120 0
                          2⤵
                          • Executes dropped EXE
                          PID:5020
                        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe
                          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe" 19.010.20098 19.010.20069.0
                          2⤵
                          • Executes dropped EXE
                          • Drops file in Program Files directory
                          PID:4500
                      • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
                        "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe"
                        1⤵
                        • Executes dropped EXE
                        PID:4728
                      • C:\Windows\system32\OpenWith.exe
                        C:\Windows\system32\OpenWith.exe -Embedding
                        1⤵
                        • Suspicious use of SetWindowsHookEx
                        PID:3016
                        • C:\Windows\system32\NOTEPAD.EXE
                          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\13160edab74cc2dd34653920d4bf56e487fea2fd6adf8249e0be9215ced902b4.pdf
                          2⤵
                          • Opens file in notepad (likely ransom note)
                          PID:4356
                      • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
                        "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe"
                        1⤵
                        • Executes dropped EXE
                        PID:4220
                      • C:\Windows\system32\compattelrunner.exe
                        C:\Windows\system32\compattelrunner.exe -m:aeinv.dll -f:UpdateSoftwareInventoryW
                        1⤵
                        • Modifies data under HKEY_USERS
                        PID:1952

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/1804-132-0x000001FBE1480000-0x000001FBE1484000-memory.dmp

                        Filesize

                        16KB

                      • memory/1804-130-0x000001FBDEE60000-0x000001FBDEE70000-memory.dmp

                        Filesize

                        64KB

                      • memory/1804-131-0x000001FBDEEC0000-0x000001FBDEED0000-memory.dmp

                        Filesize

                        64KB

                      • memory/1804-212-0x000001FBE1770000-0x000001FBE1774000-memory.dmp

                        Filesize

                        16KB

                      • memory/1804-213-0x000001FBE1760000-0x000001FBE1761000-memory.dmp

                        Filesize

                        4KB

                      • memory/1804-214-0x000001FBE14B0000-0x000001FBE14B4000-memory.dmp

                        Filesize

                        16KB

                      • memory/1804-215-0x000001FBE14A0000-0x000001FBE14A1000-memory.dmp

                        Filesize

                        4KB

                      • memory/1804-216-0x000001FBE14A0000-0x000001FBE14A4000-memory.dmp

                        Filesize

                        16KB

                      • memory/1804-217-0x000001FBDF1A0000-0x000001FBDF1A1000-memory.dmp

                        Filesize

                        4KB