Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2023, 10:57

General

  • Target

    1.exe

  • Size

    6.4MB

  • MD5

    1633a17d9fe1614e44ed2fd60ccbacdc

  • SHA1

    dd824c5db8f807366826998942d6710ac29121a8

  • SHA256

    a1d2f4f45a1807e61807649d05063aa1d77638e4f6995020c6ac84b48c0bff95

  • SHA512

    e303d1373ea9f7a0d35f6834a937e25c05c8552e55fd8c29de7670c2db4bf17a7af9476925ad3b820062d9b366213d47697db0101c224f87d4accafebb28b118

  • SSDEEP

    196608:ARnXFcNKaCYG6G3nKbZOGymJruTvwGe1Hm:+X6NzM6WneJOvwxJ

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 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\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\users\public\ncsofts_hr.exe
      "C:\users\public\ncsofts_hr.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Writes to the Master Boot Record (MBR)
      • Suspicious behavior: EnumeratesProcesses
      PID:3796
    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\users\public\×Ö½ÚÌø¶¯2023ÄêµÚÒ»¼¾¶ÈÔÚÕиÚλ.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:4916
      • 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:4560
        • 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=9D539BBA98AD5F7B974DF159E6B2F9D6 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
          4⤵
            PID:3720
          • 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=1EDF384E075446FDC358CCB7DB5D2117 --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=1EDF384E075446FDC358CCB7DB5D2117 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
            4⤵
              PID:3856
            • 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=DEDEDB4BABCB947ED8DD12C1380BD732 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
              4⤵
                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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=73156E14623543424C56F8A050498687 --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=73156E14623543424C56F8A050498687 --renderer-client-id=5 --mojo-platform-channel-handle=1800 --allow-no-sandbox-job /prefetch:1
                4⤵
                  PID:4040
                • 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=F27E7DB15104632113DF93DF205492F6 --mojo-platform-channel-handle=2468 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                  4⤵
                    PID:3108
                  • 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=BCCD721F146078521C1094B82571F865 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                    4⤵
                      PID:604
              • C:\Windows\System32\CompPkgSrv.exe
                C:\Windows\System32\CompPkgSrv.exe -Embedding
                1⤵
                  PID:3152

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

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                      Downloads

                      • C:\Users\Public\libmlt-6.dll

                        Filesize

                        6.0MB

                        MD5

                        0758eea456b6349ca6931d61f99bfc61

                        SHA1

                        76524329e6030940f5172b7f165dd385c2c3b3de

                        SHA256

                        66583e410c0595a13f7ce086c5ca35ca467c2aa7542194b865c839167155ce6e

                        SHA512

                        e50623d5e90ed8e47aafb6e958dbfa14d7f6b85c8bd9057856a2f8561eb33ba7ddb9f71e53f158cddcd1fcc0a4c8a430152889b7ed7b70d8b8da047f40f22e28

                      • C:\Users\Public\ncsofts_hr.exe

                        Filesize

                        100KB

                        MD5

                        8bcefca8ab5a7c325bd46bb3eb569863

                        SHA1

                        f173f394812c623ec4c268df367963f3a3f6e0a2

                        SHA256

                        114f8cf2eebf94a4aa20d9fdf1ad3bb95e7827d78684556f4c6004c88d03eb40

                        SHA512

                        02ce18517404a2189fdc2cadb5254d783f08760864127ab288fb4eb23dfeaf22e6d6e4aef1a5b6e8bbbec8dd75f370e5d91246f22183864373fc70bfa4b57116

                      • C:\users\public\libmlt-6.dll

                        Filesize

                        6.0MB

                        MD5

                        0758eea456b6349ca6931d61f99bfc61

                        SHA1

                        76524329e6030940f5172b7f165dd385c2c3b3de

                        SHA256

                        66583e410c0595a13f7ce086c5ca35ca467c2aa7542194b865c839167155ce6e

                        SHA512

                        e50623d5e90ed8e47aafb6e958dbfa14d7f6b85c8bd9057856a2f8561eb33ba7ddb9f71e53f158cddcd1fcc0a4c8a430152889b7ed7b70d8b8da047f40f22e28

                      • C:\users\public\×Ö½ÚÌø¶¯2023ÄêµÚÒ»¼¾¶ÈÔÚÕиÚλ.pdf

                        Filesize

                        286KB

                        MD5

                        c280eadf6b75c94b77e5ad5c5b914013

                        SHA1

                        c42d2112faa42e65e8cefaa702fe07e1a11af81e

                        SHA256

                        24d61fa0c3a0a3cab7be888770dc5205acd35ab71406f9572e43eb79cf2cf370

                        SHA512

                        88fb4685831df2e881e02ba8912661ffa48820d8e02305d8e447d3a2148ef6bb293fc3072080874999eacda0d3a15a1164a615bbf8b9ef6bfcf5ec276df49e99

                      • memory/3796-137-0x00007FFF24F90000-0x00007FFF25E45000-memory.dmp

                        Filesize

                        14.7MB

                      • memory/3796-138-0x00007FFF24F90000-0x00007FFF25E45000-memory.dmp

                        Filesize

                        14.7MB

                      • memory/3796-139-0x00007FFF24F90000-0x00007FFF25E45000-memory.dmp

                        Filesize

                        14.7MB

                      • memory/3796-140-0x00007FFF24F90000-0x00007FFF25E45000-memory.dmp

                        Filesize

                        14.7MB

                      • memory/3796-142-0x0000000002E60000-0x0000000003260000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/3796-143-0x00007FFF24F90000-0x00007FFF25E45000-memory.dmp

                        Filesize

                        14.7MB