Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 12:09

General

  • Target

    Boleto.2a.via.arquivo.anexos.visualizar.exe

  • Size

    478KB

  • MD5

    6981524ca41b3fdcdf2e17b1987e312b

  • SHA1

    6687c094e37b7367b924f09ee7b0fb44a71f9c39

  • SHA256

    830eda18b7bab059bb57b6d5f1ab225b0e19bc036501e26ba694062c0c903924

  • SHA512

    2e226128a4ad6941e73898a8571ef4aeede7a19e5938e3726fe1e989933a5c4b6c423d71d3ae4c2801a90deb5ff4652f0a8563bb9bcc1ba1f7cda088185b829f

  • SSDEEP

    6144:ZiLpzJlA3hTWyArrlMtSFXeww8Mlc02HLm+ZHBX0SZe2Tf/9VJUzVW4OX9WKKxK7:ZiLpjA3SaQeeZ6+Z+U/BNXnms

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 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 20 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Boleto.2a.via.arquivo.anexos.visualizar.exe
    "C:\Users\Admin\AppData\Local\Temp\Boleto.2a.via.arquivo.anexos.visualizar.exe"
    1⤵
    • Maps connected drives based on registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\CMD.exe
      CMD /C C:\Users\Admin\AppData\Local\Temp\BOLETO~1.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:652
    • C:\Windows\SysWOW64\CMD.exe
      CMD /C Start BOLETO~1.PDF
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2768
      • 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\Boleto.2a.via.arquivo.anexos.visualizar.pdf"
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5224
        • 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
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4532
          • 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=C20EFB2D21A055D0027C1E22740CFB29 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1548
          • 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=BDDD29BAB8012D844B92EE29EECCCA23 --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=BDDD29BAB8012D844B92EE29EECCCA23 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4220
          • 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=6F5B637232E5FABB47EDE8FC595A3608 --mojo-platform-channel-handle=2348 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4488
          • 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=B38B3B8DFF7A61CC1BE464E220749AFE --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3000
          • 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=091EF8AFBED5DBB684145088E95324FC --mojo-platform-channel-handle=2112 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            PID:5960
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3820,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=4384 /prefetch:8
    1⤵
      PID:3340

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

      Filesize

      64KB

      MD5

      3333594dff48df0503384bf4999d9850

      SHA1

      ae3cf73c74bbfe4dc4ca6fc81f3868d8d292d0c6

      SHA256

      3afeec580d6ebbd1ffd0fdcb81fb9a5e9ea2539d91a07102726635224a6646e1

      SHA512

      0ec2d8355ca38d93fe12a0ae23caf81efa4c3b1d6fe17663b6ca5c5b0b9df4651e5450ac825f2474d14e25e95382046e07e37b232fca0fc458febc11dc01f677

    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

      Filesize

      36KB

      MD5

      b30d3becc8731792523d599d949e63f5

      SHA1

      19350257e42d7aee17fb3bf139a9d3adb330fad4

      SHA256

      b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

      SHA512

      523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

    • C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

      Filesize

      56KB

      MD5

      752a1f26b18748311b691c7d8fc20633

      SHA1

      c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

      SHA256

      111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

      SHA512

      a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

    • C:\Users\Admin\AppData\Local\Temp\BOLETO~1.bat

      Filesize

      252B

      MD5

      94b604c0e403a68d8be10cf2d11ae0fa

      SHA1

      8939ae010db8ff6d553bc33537fa7b7acaadf0f2

      SHA256

      e72b59e3a947af9a6504ec8c45dfb1fe0e7478a13c968a74c8ed7a0c96b041a0

      SHA512

      99e7c2195c78443ce3f1eff93cbe7b151f9eb8b0d4502141600f910ac1a0412fbfb257e938f72ba247d88c28e13daf508f64899c657f48354880195ff960c6be

    • C:\Users\Admin\AppData\Local\Temp\Boleto.2a.via.arquivo.anexos.visualizar.pdf

      Filesize

      20B

      MD5

      da3427767b8164b069b7f1cead5afd02

      SHA1

      7d9a577acfaa533a9c479f88d466929180576447

      SHA256

      e53b93633158290fd3856558e94d8171c78dd285a7c039cfdc1a3285d634e75f

      SHA512

      a6e4b092ecc0b682089b654066fbca30668c94fa9d54eea4e3c56477971d5cafbcb29462265a3064b7ef3d24d7d910c91bb8baf20af2d2a7acb4a2311a65b0f5

    • memory/1700-0-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/1700-1-0x0000000000B20000-0x0000000000B21000-memory.dmp

      Filesize

      4KB

    • memory/1700-5-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/1700-7-0x0000000000B20000-0x0000000000B21000-memory.dmp

      Filesize

      4KB

    • memory/1700-6-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/1700-8-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/1700-11-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB