Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2025, 05:11

General

  • Target

    f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b2.dll

  • Size

    159KB

  • MD5

    7932ee5fa6f83b149569752c47e04b87

  • SHA1

    6eb115feadc5808507fb5a666dd18aa89a45616c

  • SHA256

    f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b

  • SHA512

    17ba26e69f7536f5adaa52454fbd407338be61d97bc396baa591de9fa19aab3e539b4ca32059b2ddb1b901ac7ecd341dff9ead706fc0d058086e6b3795642f58

  • SSDEEP

    3072:pusrpo1j49JvKa0ePbh37E6ZO78buZKxrF:ZQcvKpE37E6nmKhF

Malware Config

Signatures

  • Locky

    Ransomware strain released in 2016, with advanced features like anti-analysis.

  • Locky (Osiris variant)

    Variant of the Locky ransomware seen in the wild since early 2017.

  • Locky family
  • Locky_osiris family
  • Blocklisted process makes network request 6 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b2.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b2.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Sets desktop wallpaper using registry
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Suspicious use of WriteProcessMemory
      PID:3736
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\DesktopOSIRIS.htm
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:3696
        • 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,0x100,0x104,0xd8,0x108,0x7ffab9d046f8,0x7ffab9d04708,0x7ffab9d04718
          4⤵
            PID:2264
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /prefetch:2
            4⤵
              PID:116
            • 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=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2164 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4608
            • 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=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2848 /prefetch:8
              4⤵
                PID:3296
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --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=3220 /prefetch:1
                4⤵
                  PID:2648
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --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=3232 /prefetch:1
                  4⤵
                    PID:3244
                  • 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=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5176 /prefetch:8
                    4⤵
                      PID:244
                    • 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=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5176 /prefetch:8
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:3932
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4740 /prefetch:1
                      4⤵
                        PID:2932
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5272 /prefetch:1
                        4⤵
                          PID:5008
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4072 /prefetch:1
                          4⤵
                            PID:704
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2072,7170592723653645149,8432206239418372223,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3504 /prefetch:1
                            4⤵
                              PID:1808
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:2008
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:4432

                          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

                            9f4a0b24e1ad3a25fc9435eb63195e60

                            SHA1

                            052b5a37605d7e0e27d8b47bf162a000850196cd

                            SHA256

                            7d70a8fc286520712421636b563e9ee32335bca9a5be764544a084c77ddd5feb

                            SHA512

                            70897560b30f7885745fede85def923fb9a4f63820e351247d5dcbe81daab9dab49c1db03b29c390f58b3907d5025737a84fff026af2372c3233bc585dcfd284

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

                            Filesize

                            152B

                            MD5

                            4c9b7e612ef21ee665c70534d72524b0

                            SHA1

                            e76e22880ffa7d643933bf09544ceb23573d5add

                            SHA256

                            a64366387921aba157bba7472244791d5368aef8ecaf6472b616e1e130d7d05e

                            SHA512

                            e195e1ce5e7c06d193aa1f924d0079ea72b66eb22c3aea5b6811172251768f649368734e817996d9f0f72ddfd0e2bf2454aaee0bc650eaffd56fa125a334ae88

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

                            Filesize

                            5KB

                            MD5

                            df6fdffb617097cae5b24554af01ee81

                            SHA1

                            46eb91a1eb6f116bdcfd253d5b9a2611f98621b0

                            SHA256

                            a17ff593eccef159880797a853e48d739b84fcd127a42b88904aa58ec0eb2028

                            SHA512

                            26e350b303fb9db5f1acd94d28593ddeebbb99132fc767c55cca49483c277c120a1e7023bb588f899269f548d5f6dea8d8623287b7a516b252b58d57b01ae03b

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

                            Filesize

                            6KB

                            MD5

                            0a9f34cfe666d51aa4747c15de994fac

                            SHA1

                            9c7cd0c97205a9d547ca3d144f77c9ba8bc73380

                            SHA256

                            a4207cda676f83b9c37f801e611f6f0d1d54851239f60efb314b1f3d8b04ce1a

                            SHA512

                            534d16546ddfd0dff3d4212023235efbdbe875f729bda19b692509ac7c7b5a418c484b761de2959be2f246d83fd26cc82c38ac091d961ffe8994497780e70e49

                          • 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

                            07843011fdd736d823ed6cffa52062c6

                            SHA1

                            3261c98e658510e658ecf78bc26dae0e56c64d13

                            SHA256

                            61ead0099c615cbe730c9041f216cfb86981e6915b4124a165aecc65446e26ad

                            SHA512

                            38082d8aad9fe11c3998175f0d6ad85225b45902138a58dc23d4cbc840aedbf1c9cd2445f85cf96e3f2d906708d14b6d40b1f23f11fdc61285b15df5c46be65d

                          • C:\Users\Admin\Desktop\OSIRIS-4e7f.htm

                            Filesize

                            8KB

                            MD5

                            b4d0dbe652ab135e237d4cdad2b4f10a

                            SHA1

                            b118e0c1f9f367b9e47e3c0c42a5bd53db99dba6

                            SHA256

                            6e82a517bc5997722742c85783bf97038ea8f097a79db7e313649ef8024d8c7d

                            SHA512

                            3a5a0adcc930e1c7d26ce6f775db301455547bc4f80d1e6b5c48cbc3e3b1027684a24d5d7980b4d52a8f60b188f370f93d50f08dded74cc41aa11c26e212d6a1

                          • memory/3736-4-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-16-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-14-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-12-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-9-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-7-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-0-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-5-0x0000000002B30000-0x0000000002B31000-memory.dmp

                            Filesize

                            4KB

                          • memory/3736-2-0x00000000750D0000-0x0000000075102000-memory.dmp

                            Filesize

                            200KB

                          • memory/3736-1-0x0000000002B30000-0x0000000002B31000-memory.dmp

                            Filesize

                            4KB