Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-07-2022 12:35

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 4 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 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 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:2004
    • 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:4648
      • 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,0x100,0x9c,0x104,0x7ff8b96f46f8,0x7ff8b96f4708,0x7ff8b96f4718
        3⤵
          PID:3320
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2236,2599352454016711360,5445238216625154082,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2248 /prefetch:2
          3⤵
            PID:1664
          • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2304 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3680
          • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2872 /prefetch:8
            3⤵
              PID:2408
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,2599352454016711360,5445238216625154082,131072 --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=3916 /prefetch:1
              3⤵
                PID:4696
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,2599352454016711360,5445238216625154082,131072 --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=3964 /prefetch:1
                3⤵
                  PID:4472
                • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5148 /prefetch:8
                  3⤵
                    PID:3948
                  • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5252 /prefetch:8
                    3⤵
                      PID:3936
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,2599352454016711360,5445238216625154082,131072 --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=5660 /prefetch:1
                      3⤵
                        PID:1668
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,2599352454016711360,5445238216625154082,131072 --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=5676 /prefetch:1
                        3⤵
                          PID:4932
                        • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5220 /prefetch:8
                          3⤵
                            PID:3512
                          • 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:228
                            • 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,0x7ff672315460,0x7ff672315470,0x7ff672315480
                              4⤵
                                PID:776
                            • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5220 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:5004
                            • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6004 /prefetch:8
                              3⤵
                                PID:1520
                              • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3516 /prefetch:8
                                3⤵
                                  PID:3392
                                • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3472 /prefetch:8
                                  3⤵
                                    PID:4492
                                  • 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=2236,2599352454016711360,5445238216625154082,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2440 /prefetch:8
                                    3⤵
                                      PID:3512
                                  • C:\Windows\SysWOW64\cmd.exe
                                    cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
                                    2⤵
                                      PID:5004
                                  • C:\Windows\System32\CompPkgSrv.exe
                                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                                    1⤵
                                      PID:1500

                                    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

                                      bc13b9d7baedca149d1acef15a4b50da

                                      SHA1

                                      059b4be1b690a8911079980cf37fa42727834000

                                      SHA256

                                      1bd7ed4850df1f7adb1c67fc32b2ad559f0e3944c075a294a78d78a9159e60ac

                                      SHA512

                                      4f254b5131c6c9410303b54e150208f7437e74514ae1f727901918e8b5d06d43fa6251c249ede33a16a0452a651091af67280742525e208240cc523341ce5db4

                                    • \??\pipe\LOCAL\crashpad_4648_QXAFNMYFYUGUEEHM
                                      MD5

                                      d41d8cd98f00b204e9800998ecf8427e

                                      SHA1

                                      da39a3ee5e6b4b0d3255bfef95601890afd80709

                                      SHA256

                                      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                      SHA512

                                      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                    • memory/228-158-0x0000000000000000-mapping.dmp
                                    • memory/776-159-0x0000000000000000-mapping.dmp
                                    • memory/1520-162-0x0000000000000000-mapping.dmp
                                    • memory/1664-140-0x0000000000000000-mapping.dmp
                                    • memory/1668-155-0x0000000000000000-mapping.dmp
                                    • memory/2004-134-0x0000000003F70000-0x0000000003F97000-memory.dmp
                                      Filesize

                                      156KB

                                    • memory/2004-137-0x0000000003F70000-0x0000000003F97000-memory.dmp
                                      Filesize

                                      156KB

                                    • memory/2004-130-0x0000000002F60000-0x0000000002F87000-memory.dmp
                                      Filesize

                                      156KB

                                    • memory/2004-132-0x0000000000400000-0x0000000000456000-memory.dmp
                                      Filesize

                                      344KB

                                    • memory/2004-131-0x0000000002F60000-0x0000000002F87000-memory.dmp
                                      Filesize

                                      156KB

                                    • memory/2408-143-0x0000000000000000-mapping.dmp
                                    • memory/3320-138-0x0000000000000000-mapping.dmp
                                    • memory/3392-164-0x0000000000000000-mapping.dmp
                                    • memory/3512-168-0x0000000000000000-mapping.dmp
                                    • memory/3680-141-0x0000000000000000-mapping.dmp
                                    • memory/3936-153-0x0000000000000000-mapping.dmp
                                    • memory/3948-151-0x0000000000000000-mapping.dmp
                                    • memory/4472-148-0x0000000000000000-mapping.dmp
                                    • memory/4492-166-0x0000000000000000-mapping.dmp
                                    • memory/4648-135-0x0000000000000000-mapping.dmp
                                    • memory/4696-146-0x0000000000000000-mapping.dmp
                                    • memory/4932-157-0x0000000000000000-mapping.dmp
                                    • memory/5004-160-0x0000000000000000-mapping.dmp
                                    • memory/5004-136-0x0000000000000000-mapping.dmp