Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 00:00

General

  • Target

    74e8b8df8bf176cfdae5381336e466b0af5149ad92b877b95ddbb5f5d911e83d.exe

  • Size

    1.8MB

  • MD5

    5e189818e7a91f70ab650334d2fa9185

  • SHA1

    625448d0cb20fec36503e01da474ec80b7f4b39a

  • SHA256

    74e8b8df8bf176cfdae5381336e466b0af5149ad92b877b95ddbb5f5d911e83d

  • SHA512

    e7ec4455753e7453c39e3839a8d958b23a1c823666447bcd472c5ce481288b01a450e6edf8b259d70b28adec0bc773203170024ce65984642e9515d102d2f038

  • SSDEEP

    49152:8I3YCPorTf5p7Fx1qd3m+JiGeatgs+kL1R:8SPO5p7YN1J9tgs31R

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

0.tcp.ap.ngrok.io:10816

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74e8b8df8bf176cfdae5381336e466b0af5149ad92b877b95ddbb5f5d911e83d.exe
    "C:\Users\Admin\AppData\Local\Temp\74e8b8df8bf176cfdae5381336e466b0af5149ad92b877b95ddbb5f5d911e83d.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3984
    • C:\1.exe
      "C:\1.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2772
      • C:\1.exe
        "C:\1.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2120
    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\3.pdf"
      2⤵
      • 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:436
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1076
        • 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=803F6B9D0887FFDDAA02F590D2B8E276 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
          4⤵
            PID:1636
          • 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=06C17380D2E855E5216E3EE211CB4F1E --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=06C17380D2E855E5216E3EE211CB4F1E --renderer-client-id=2 --mojo-platform-channel-handle=1780 --allow-no-sandbox-job /prefetch:1
            4⤵
              PID:4320
            • 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=BC53BD1BF50F1D0FDBCDDD8BB8BC65DA --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=BC53BD1BF50F1D0FDBCDDD8BB8BC65DA --renderer-client-id=4 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job /prefetch:1
              4⤵
                PID:972
              • 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=F988749F6D83D42298FE34C59CB12BCD --mojo-platform-channel-handle=2456 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                4⤵
                  PID:3052
                • 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=DF52713CBAC4D52441B70315A839F390 --mojo-platform-channel-handle=1980 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                  4⤵
                    PID:2404
                  • 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=220D0CF531FF15DABFF68E6839A14DA8 --mojo-platform-channel-handle=2480 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                    4⤵
                      PID:1100
              • C:\Windows\System32\CompPkgSrv.exe
                C:\Windows\System32\CompPkgSrv.exe -Embedding
                1⤵
                  PID:4168

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      • C:\1.exe

                        Filesize

                        2.6MB

                        MD5

                        8830437b97b4ec8f4c6ade4431731de1

                        SHA1

                        ccf861d87c84cbe2eb2e7382bde164c9c2757f33

                        SHA256

                        0ceaa610d3cd5febe47acc20f9b5193b660f66fc9cb737d23ed5390b4bd57962

                        SHA512

                        d0a6781581481d2c1737d1bd48d7ee053f0068489211e6899b9dcc9526a580604ba5d6e06612fc9739e22e427da6d1ae89de4e82231033dd134d39811f2b57fb

                      • C:\1.exe

                        Filesize

                        2.6MB

                        MD5

                        8830437b97b4ec8f4c6ade4431731de1

                        SHA1

                        ccf861d87c84cbe2eb2e7382bde164c9c2757f33

                        SHA256

                        0ceaa610d3cd5febe47acc20f9b5193b660f66fc9cb737d23ed5390b4bd57962

                        SHA512

                        d0a6781581481d2c1737d1bd48d7ee053f0068489211e6899b9dcc9526a580604ba5d6e06612fc9739e22e427da6d1ae89de4e82231033dd134d39811f2b57fb

                      • C:\1.exe

                        Filesize

                        2.6MB

                        MD5

                        8830437b97b4ec8f4c6ade4431731de1

                        SHA1

                        ccf861d87c84cbe2eb2e7382bde164c9c2757f33

                        SHA256

                        0ceaa610d3cd5febe47acc20f9b5193b660f66fc9cb737d23ed5390b4bd57962

                        SHA512

                        d0a6781581481d2c1737d1bd48d7ee053f0068489211e6899b9dcc9526a580604ba5d6e06612fc9739e22e427da6d1ae89de4e82231033dd134d39811f2b57fb

                      • C:\1.exe

                        Filesize

                        2.6MB

                        MD5

                        8830437b97b4ec8f4c6ade4431731de1

                        SHA1

                        ccf861d87c84cbe2eb2e7382bde164c9c2757f33

                        SHA256

                        0ceaa610d3cd5febe47acc20f9b5193b660f66fc9cb737d23ed5390b4bd57962

                        SHA512

                        d0a6781581481d2c1737d1bd48d7ee053f0068489211e6899b9dcc9526a580604ba5d6e06612fc9739e22e427da6d1ae89de4e82231033dd134d39811f2b57fb

                      • C:\3.pdf

                        Filesize

                        506KB

                        MD5

                        497a62780e2a1ad39f16e387c150c88c

                        SHA1

                        34bd683895c441c656aae1b52eada7a220e597f5

                        SHA256

                        32f9f8201523ef15e9c3e1ed8edf9a054e8794b4132579705461b5f0d0b11c02

                        SHA512

                        ffd2bd21e9804e1c03d32feb2d33473d8eeb4daf32c034aa98d8ac61f34613515562f4b06ba16cd750f3376a1ef9514ca213e242a020d79f26ebe9ad978af4c9

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

                        Filesize

                        64KB

                        MD5

                        4aced5f2de5c1d93005c4332aee33452

                        SHA1

                        54c1626e3aeb0cca289cf0dcef17e844019b281e

                        SHA256

                        d73d36e4a04779d11f186b33489680948b9bcc78527b6e2d9670f37ac1c56bf7

                        SHA512

                        c2a9413250a18f548393cafc7bd2ede845e53d1cd62804a360c3491fa571a8b3e69efd3ee8fff5d875520164782c2b3cf80bac6976391445bab27d8e8b6ab0dc

                      • 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\Microsoft\CLR_v4.0_32\UsageLogs\1.exe.log

                        Filesize

                        321B

                        MD5

                        baf5d1398fdb79e947b60fe51e45397f

                        SHA1

                        49e7b8389f47b93509d621b8030b75e96bb577af

                        SHA256

                        10c8c7b5fa58f8c6b69f44e92a4e2af111b59fcf4f21a07e04b19e14876ccdf8

                        SHA512

                        b2c9ef5581d5eae7c17ae260fe9f52344ed737fa851cb44d1cea58a32359d0ac5d0ca3099c970209bd30a0d4af6e504101f21b7054cf5eca91c0831cf12fb413

                      • memory/2120-54-0x0000000072750000-0x0000000072F00000-memory.dmp

                        Filesize

                        7.7MB

                      • memory/2120-24-0x0000000072750000-0x0000000072F00000-memory.dmp

                        Filesize

                        7.7MB

                      • memory/2120-26-0x0000000005780000-0x0000000005790000-memory.dmp

                        Filesize

                        64KB

                      • memory/2120-55-0x0000000005780000-0x0000000005790000-memory.dmp

                        Filesize

                        64KB

                      • memory/2120-19-0x0000000000400000-0x0000000000412000-memory.dmp

                        Filesize

                        72KB

                      • memory/2772-23-0x0000000072750000-0x0000000072F00000-memory.dmp

                        Filesize

                        7.7MB

                      • memory/2772-15-0x0000000072750000-0x0000000072F00000-memory.dmp

                        Filesize

                        7.7MB

                      • memory/2772-17-0x00000000055C0000-0x0000000005B64000-memory.dmp

                        Filesize

                        5.6MB

                      • memory/2772-16-0x0000000000350000-0x00000000005EE000-memory.dmp

                        Filesize

                        2.6MB

                      • memory/2772-18-0x0000000004F60000-0x0000000004F9A000-memory.dmp

                        Filesize

                        232KB