Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2024, 22:37

General

  • Target

    rtflib.exe

  • Size

    22KB

  • MD5

    f392b45bd2a468647ef8d4230f45c132

  • SHA1

    786e8c5b01e07c52b68585e80bcda3cf865c33c9

  • SHA256

    6c4c1d409fbd9a7a33f912317e665c1adaa5e254ecccc0ece8af8fd25597abc6

  • SHA512

    c6120f81aa32c09a337fda70cacffb92a213b37e5d9d9882829f9ca6090d816080e008d6e6cbf0beb18af590f02feb0ed781b8e0eb382010877507c829e7d94b

  • SSDEEP

    384:zkfCtNKvzHR+zZxhKzB+vU+V7qB8wuNb0nMzwBaxkNXvDEZZd6yW:Qm0Bk9V78uV0nRLEN6

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rtflib.exe
    "C:\Users\Admin\AppData\Local\Temp\rtflib.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.verypdf.com/
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4856
      • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffc24ee46f8,0x7ffc24ee4708,0x7ffc24ee4718
        3⤵
          PID:3228
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2244 /prefetch:2
          3⤵
            PID:1516
          • 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=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2316 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2788
          • 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=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2784 /prefetch:8
            3⤵
              PID:1412
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3248 /prefetch:1
              3⤵
                PID:3960
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3308 /prefetch:1
                3⤵
                  PID:4032
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4948 /prefetch:1
                  3⤵
                    PID:3616
                  • 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=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3516 /prefetch:8
                    3⤵
                      PID:4192
                    • 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=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3516 /prefetch:8
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:4588
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5136 /prefetch:1
                      3⤵
                        PID:3728
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5152 /prefetch:1
                        3⤵
                          PID:3276
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5228 /prefetch:1
                          3⤵
                            PID:4528
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5188 /prefetch:1
                            3⤵
                              PID:4392
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2240,454333170982044466,14456223332756495047,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --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=5740 /prefetch:2
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:3840
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:368
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:1536

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                              Filesize

                              152B

                              MD5

                              de1d175f3af722d1feb1c205f4e92d1e

                              SHA1

                              019cf8527a9b94bd0b35418bf7be8348be5a1c39

                              SHA256

                              1b99cae942ebf99c31795fa279d51b1a2379ca0af7b27bd3c58ea6c78a033924

                              SHA512

                              f0dcd08afd3c6a761cc1afa2846ec23fb5438d6127ebd535a754498debabd0b1ebd04858d1b98be92faf14b512f982b1f3dcbb702860e96877eb835f763f9734

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                              Filesize

                              152B

                              MD5

                              06b496d28461d5c01fc81bc2be6a9978

                              SHA1

                              36e7a9d9c7a924d5bb448d68038c7fe5e6cbf5aa

                              SHA256

                              e4a2d1395627095b0fa55e977e527ccb5b71dff3cd2d138df498f50f9f5ab507

                              SHA512

                              6488a807c978d38d65010583c1e5582548ab8102ebd68ee827e603c9bdfcdbb9f98a488d31414a829409f6edca8bd2eb4aadd4ff31b144de41249fa63a26bc91

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\74af1107-6507-45cd-86a8-1ba0fb51e9e5.tmp

                              Filesize

                              7KB

                              MD5

                              9593ec4f2aac8189c46653f70c801384

                              SHA1

                              251dffb85deb01ba1172242ea5de2b8c62677190

                              SHA256

                              2ed71766266abb3970739e9c1ffb79159280f6b33722f33592b75879d9274045

                              SHA512

                              206b85909de468c6573edaae53fb84e74ada8b816762fd08197c60411dc41b71b5d4c1c68be03c54a7e8fa5465776203baeef5f9789117b012607dbc00d385bc

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                              Filesize

                              264B

                              MD5

                              d0be3419d9af65b186846e09566d8816

                              SHA1

                              28f124c356fcf60a0c62ebf829a27792f24767ac

                              SHA256

                              55eb2f4d697088fb80f09cd34201f5bb34a7e29736185d4a7494c786a96d0170

                              SHA512

                              ee8034cbeb9334543cb1a4a4e0b70140e0b41f6c6c178d1b3b3ee0d6bb68b3bfba152cf1f9b7d7fab150bf7accfcdaf5c0be980bb7aa3816e3c8860c663ea58a

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                              Filesize

                              111B

                              MD5

                              285252a2f6327d41eab203dc2f402c67

                              SHA1

                              acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

                              SHA256

                              5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

                              SHA512

                              11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                              Filesize

                              1KB

                              MD5

                              95e7f31e7141e9cf9307e85bc3449021

                              SHA1

                              ca14ece4c919dfa66affb48a6770f5e684a73ca3

                              SHA256

                              b143d96c468e825a8a6da73e38d19e3365fb34874ba96f17bb1d733dfb3066e8

                              SHA512

                              db0f1381c9d73fb3d49e9b04764d4d9a18dc3d291ac3df7ad69dc37ac25cc2d215c5594d7775a6c71a5f1cbbb6d34f8691870db3975db1f77c7091cfe921e65c

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                              Filesize

                              6KB

                              MD5

                              f59191ed50c5cc0e8488e75c03bb1919

                              SHA1

                              7e4e24934663faa4fc9285d59092646f373994f1

                              SHA256

                              c2e7bed0cbf9233c3a0e2c8d698f1e8e6052b3f688a34a3ce6b2e56e3ca162a8

                              SHA512

                              aa4fe695445de4beb1ba27e13573fd51b32ee8e763dea3f0e4ff4d7f6fca2bf1778bcc6bc1202e9cdab7f235fb553bd9bb57df56512e6fe6a0492c832ef180a7

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                              Filesize

                              16B

                              MD5

                              6752a1d65b201c13b62ea44016eb221f

                              SHA1

                              58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                              SHA256

                              0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                              SHA512

                              9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                              Filesize

                              11KB

                              MD5

                              eb7a6e1cc70a724ce600c4bbd3fa0b5d

                              SHA1

                              74d6a4566decabe9ca59495683853a4767a67a3e

                              SHA256

                              51c9c40ac097a371d25dc63b0a31f91fcd792968ac2d7a8d8d148d0850398097

                              SHA512

                              761ae024b16caa369443015d0cbdcbd2fc69987914ec471e4e336e07366e441ff4559ebcc09be3cdc0b44e504a8c325625b3167e325cc74c18adf0e77f5f6d5d

                            • memory/404-0-0x0000000000400000-0x0000000000412000-memory.dmp

                              Filesize

                              72KB

                            • memory/404-2-0x0000000000400000-0x0000000000412000-memory.dmp

                              Filesize

                              72KB