Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04-07-2022 12:38

General

  • Target

    f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

  • Size

    329KB

  • MD5

    b99c2748e46c0f8ed8da08fd933e0d9f

  • SHA1

    b86e4150446e189259db650270edcc02296b4ca5

  • SHA256

    f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f

  • SHA512

    da239c429c2bc7e24f1a4ad1420d501a29e7abde4b89e474f290b4678d10a571c84b2cddb6994104ec2dc80d260122f3f8289e9113b2d0b54c483f249207167f

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.

  • suricata: ET MALWARE Locky CnC Checkin Dec 5 M1

    suricata: ET MALWARE Locky CnC Checkin Dec 5 M1

  • suricata: ET MALWARE Locky CnC Checkin HTTP Pattern

    suricata: ET MALWARE Locky CnC Checkin HTTP Pattern

  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
    "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4260
    • 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
      2⤵
      • 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:2524
      • 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,0x100,0x104,0xf8,0x108,0x7ffddaa146f8,0x7ffddaa14708,0x7ffddaa14718
        3⤵
          PID:1104
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
          3⤵
            PID:2800
          • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2452 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1816
          • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2692 /prefetch:8
            3⤵
              PID:4328
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=3804 /prefetch:1
              3⤵
                PID:1844
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=3832 /prefetch:1
                3⤵
                  PID:4752
                • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5268 /prefetch:8
                  3⤵
                    PID:3788
                  • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5464 /prefetch:8
                    3⤵
                      PID:3716
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5296 /prefetch:1
                      3⤵
                        PID:4828
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5468 /prefetch:1
                        3⤵
                          PID:3420
                        • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3872 /prefetch:8
                          3⤵
                            PID:1468
                          • 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
                            3⤵
                            • Drops file in Program Files directory
                            PID:1772
                            • 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,0x7ff73eb05460,0x7ff73eb05470,0x7ff73eb05480
                              4⤵
                                PID:2904
                            • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3872 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:5096
                            • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1908 /prefetch:8
                              3⤵
                                PID:3480
                              • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1324 /prefetch:8
                                3⤵
                                  PID:4768
                                • 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3176 /prefetch:8
                                  3⤵
                                    PID:3476
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
                                  2⤵
                                    PID:2620
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:540

                                  Network

                                  MITRE ATT&CK Matrix ATT&CK v6

                                  Persistence

                                  Registry Run Keys / Startup Folder

                                  1
                                  T1060

                                  Defense Evasion

                                  Modify Registry

                                  2
                                  T1112

                                  Discovery

                                  System Information Discovery

                                  2
                                  T1082

                                  Query Registry

                                  1
                                  T1012

                                  Impact

                                  Defacement

                                  1
                                  T1491

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\DesktopOSIRIS.htm
                                    Filesize

                                    8KB

                                    MD5

                                    fc29c955616f6dee48192bdac161c54f

                                    SHA1

                                    9cb8b1ff48300744a3b08e12b909dc585d7e8235

                                    SHA256

                                    b9f32d5be340aae5ebc404e7e9509e12cb7ae40d9d7d151d66283c48ebe3d82b

                                    SHA512

                                    0a8edd62ea0a2815f40579d78b11618966319f8837fdb8055bae7542e6f503813391ab9ed5f321f5b468769947afb76b1ceb455e5221b9eb980a8269609e2204

                                  • \??\pipe\LOCAL\crashpad_2524_CKWEFQFZJIGKQSNR
                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • memory/1104-138-0x0000000000000000-mapping.dmp
                                  • memory/1772-159-0x0000000000000000-mapping.dmp
                                  • memory/1816-142-0x0000000000000000-mapping.dmp
                                  • memory/1844-147-0x0000000000000000-mapping.dmp
                                  • memory/2524-136-0x0000000000000000-mapping.dmp
                                  • memory/2620-137-0x0000000000000000-mapping.dmp
                                  • memory/2800-141-0x0000000000000000-mapping.dmp
                                  • memory/2904-160-0x0000000000000000-mapping.dmp
                                  • memory/3420-158-0x0000000000000000-mapping.dmp
                                  • memory/3476-167-0x0000000000000000-mapping.dmp
                                  • memory/3480-163-0x0000000000000000-mapping.dmp
                                  • memory/3716-154-0x0000000000000000-mapping.dmp
                                  • memory/3788-152-0x0000000000000000-mapping.dmp
                                  • memory/4260-139-0x0000000004080000-0x00000000040A7000-memory.dmp
                                    Filesize

                                    156KB

                                  • memory/4260-134-0x0000000002EA0000-0x0000000002EC7000-memory.dmp
                                    Filesize

                                    156KB

                                  • memory/4260-130-0x0000000002EA0000-0x0000000002EC7000-memory.dmp
                                    Filesize

                                    156KB

                                  • memory/4260-135-0x0000000004080000-0x00000000040A7000-memory.dmp
                                    Filesize

                                    156KB

                                  • memory/4260-133-0x0000000004080000-0x00000000040A7000-memory.dmp
                                    Filesize

                                    156KB

                                  • memory/4260-131-0x0000000000400000-0x0000000000456000-memory.dmp
                                    Filesize

                                    344KB

                                  • memory/4328-145-0x0000000000000000-mapping.dmp
                                  • memory/4752-149-0x0000000000000000-mapping.dmp
                                  • memory/4768-165-0x0000000000000000-mapping.dmp
                                  • memory/4828-156-0x0000000000000000-mapping.dmp
                                  • memory/5096-161-0x0000000000000000-mapping.dmp