Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2022 22:06

General

  • Target

    peachjars - Linkvertise Downloader_kT33-41.exe

  • Size

    4.3MB

  • MD5

    bf244845092d9973e7a5a93635080267

  • SHA1

    3e5d24552e8b5881a794479faa9cd7e48f09d219

  • SHA256

    f71fbe54ec60dc2c19ca7a7d1ee06a2b134c216e32228ddb76217a64b452011c

  • SHA512

    fc81d20d8d24ca997c5cd1a3f171934a022aa318ecd978c7ede01a4e1cd3d3fa5384d3edc9c4dd3e6cb88cf82a6d66d3db7fd5b96a4af5aad83f2c393a3eea49

  • SSDEEP

    98304:xSie6hoXOWZ3lsuUxqxgWph7NLx137O5z:/oXOM1ughx7Sz

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 2 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\peachjars - Linkvertise Downloader_kT33-41.exe
    "C:\Users\Admin\AppData\Local\Temp\peachjars - Linkvertise Downloader_kT33-41.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3400
    • C:\Users\Admin\AppData\Local\Temp\is-CAAIQ.tmp\peachjars - Linkvertise Downloader_kT33-41.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CAAIQ.tmp\peachjars - Linkvertise Downloader_kT33-41.tmp" /SL5="$8003A,3525439,1235456,C:\Users\Admin\AppData\Local\Temp\peachjars - Linkvertise Downloader_kT33-41.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://mega.nz/folder/RZZgkKZY#ePhPVBRTv0j3jMF8fI6F6w
        3⤵
        • Adds Run key to start application
        • Enumerates system info in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:5092
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffe997a46f8,0x7ffe997a4708,0x7ffe997a4718
          4⤵
            PID:4016
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2204 /prefetch:2
            4⤵
              PID:4576
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2268 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4136
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2856 /prefetch:8
              4⤵
                PID:4864
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3436 /prefetch:1
                4⤵
                  PID:4304
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3440 /prefetch:1
                  4⤵
                    PID:3564
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5284 /prefetch:8
                    4⤵
                      PID:828
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5588 /prefetch:8
                      4⤵
                        PID:2632
                      • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6116 /prefetch:8
                        4⤵
                          PID:4220
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                          4⤵
                          • Drops file in Program Files directory
                          PID:1720
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff7caf55460,0x7ff7caf55470,0x7ff7caf55480
                            5⤵
                              PID:4708
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6116 /prefetch:8
                            4⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:3856
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=6064 /prefetch:8
                            4⤵
                              PID:2252
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6392 /prefetch:1
                              4⤵
                                PID:1112
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5964 /prefetch:1
                                4⤵
                                  PID:2108
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3896 /prefetch:1
                                  4⤵
                                    PID:5476
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1824 /prefetch:1
                                    4⤵
                                      PID:5548
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2780 /prefetch:1
                                      4⤵
                                        PID:5632
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5844 /prefetch:1
                                        4⤵
                                          PID:5780
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4056 /prefetch:8
                                          4⤵
                                            PID:5928
                                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5660 /prefetch:8
                                            4⤵
                                              PID:6004
                                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2148,2381995688224169368,10570258665305727847,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=3996 /prefetch:2
                                              4⤵
                                              • Suspicious behavior: EnumeratesProcesses
                                              PID:6056
                                      • C:\Windows\System32\CompPkgSrv.exe
                                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                                        1⤵
                                          PID:3888
                                        • C:\Windows\system32\AUDIODG.EXE
                                          C:\Windows\system32\AUDIODG.EXE 0x31c 0x300
                                          1⤵
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:2760

                                        Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\is-8L2ID.tmp\AppUtils.dll

                                          Filesize

                                          1.8MB

                                          MD5

                                          43ce6d593abd5141a3139603f352ae05

                                          SHA1

                                          a97c75e23d275dddfde15ef5fdf3ff3253c0992c

                                          SHA256

                                          94e874f2702ea6be50e7d74864b66e7f763449c3db237803f3fad6adfd64ed3d

                                          SHA512

                                          bfc527529e5f73ba190dfc5bd043175c7e2ae963b665d6d39421c29e025020f1d593dc88b7bee33d86ef6b4f7a4c5e1a0339df4e99cab6849a275d1dda9f439f

                                        • C:\Users\Admin\AppData\Local\Temp\is-8L2ID.tmp\DimensionUtils.dll

                                          Filesize

                                          1.9MB

                                          MD5

                                          ce2dc2cc12aec529511da19cf63ba802

                                          SHA1

                                          5b45c33a34df73920077f546176a3aa96df0f80e

                                          SHA256

                                          bde7cc0193ad2fbdfa9f072d9003bf1c82cd27e027b2e038343514f8cc8ee6d2

                                          SHA512

                                          98b5017e437b05639238b63bdf6cccdea7665f3fa0c55e87e8c7139551c213b1a63d641d588b950346ec66bb03b4800dc4e3dd4c60f80e0e76779b1ba58d2be7

                                        • C:\Users\Admin\AppData\Local\Temp\is-8L2ID.tmp\botva2.dll

                                          Filesize

                                          37KB

                                          MD5

                                          67965a5957a61867d661f05ae1f4773e

                                          SHA1

                                          f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

                                          SHA256

                                          450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

                                          SHA512

                                          c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

                                        • C:\Users\Admin\AppData\Local\Temp\is-8L2ID.tmp\botva2.dll

                                          Filesize

                                          37KB

                                          MD5

                                          67965a5957a61867d661f05ae1f4773e

                                          SHA1

                                          f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

                                          SHA256

                                          450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

                                          SHA512

                                          c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

                                        • C:\Users\Admin\AppData\Local\Temp\is-CAAIQ.tmp\peachjars - Linkvertise Downloader_kT33-41.tmp

                                          Filesize

                                          3.4MB

                                          MD5

                                          06e087e48e6d73efd7f353855aacb570

                                          SHA1

                                          679e2a92aa2c8a09fa3b615d56e48667ff8bb4f8

                                          SHA256

                                          9a0815e309db4d6feebf90ce5e91cc78892b2016dcbe07fd436afd655477320d

                                          SHA512

                                          05e4fe70aa104a4edbbdddf5e7396446d67123e2865c3a02c414a39c1ee6dc34aba6fa6f587435755a9a90ade1b7eccefe0e76244563689e0971a024049086c2

                                        • memory/828-156-0x0000000000000000-mapping.dmp

                                        • memory/1112-166-0x0000000000000000-mapping.dmp

                                        • memory/1720-160-0x0000000000000000-mapping.dmp

                                        • memory/2108-168-0x0000000000000000-mapping.dmp

                                        • memory/2252-164-0x0000000000000000-mapping.dmp

                                        • memory/2632-158-0x0000000000000000-mapping.dmp

                                        • memory/3400-136-0x0000000000400000-0x000000000053B000-memory.dmp

                                          Filesize

                                          1.2MB

                                        • memory/3400-143-0x0000000000400000-0x000000000053B000-memory.dmp

                                          Filesize

                                          1.2MB

                                        • memory/3400-132-0x0000000000400000-0x000000000053B000-memory.dmp

                                          Filesize

                                          1.2MB

                                        • memory/3564-154-0x0000000000000000-mapping.dmp

                                        • memory/3856-162-0x0000000000000000-mapping.dmp

                                        • memory/4016-144-0x0000000000000000-mapping.dmp

                                        • memory/4136-147-0x0000000000000000-mapping.dmp

                                        • memory/4304-152-0x0000000000000000-mapping.dmp

                                        • memory/4576-146-0x0000000000000000-mapping.dmp

                                        • memory/4708-161-0x0000000000000000-mapping.dmp

                                        • memory/4864-150-0x0000000000000000-mapping.dmp

                                        • memory/5040-134-0x0000000000000000-mapping.dmp

                                        • memory/5040-140-0x0000000005690000-0x000000000569F000-memory.dmp

                                          Filesize

                                          60KB

                                        • memory/5092-142-0x0000000000000000-mapping.dmp

                                        • memory/5476-170-0x0000000000000000-mapping.dmp

                                        • memory/5548-172-0x0000000000000000-mapping.dmp

                                        • memory/5632-174-0x0000000000000000-mapping.dmp

                                        • memory/5780-176-0x0000000000000000-mapping.dmp

                                        • memory/5928-178-0x0000000000000000-mapping.dmp

                                        • memory/6004-180-0x0000000000000000-mapping.dmp

                                        • memory/6056-181-0x0000000000000000-mapping.dmp