Analysis

  • max time kernel
    138s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 18:32

General

  • Target

    0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe

  • Size

    303KB

  • MD5

    d5fee0c6f1d0d730de259c64e6373a0c

  • SHA1

    894f45f50454001bd21ad2713fefc15eb25b2b8b

  • SHA256

    0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b

  • SHA512

    fa39d6cdf1c00ec33ce02df71d16d83d58095d09d6a2a1c9d31ceb0bcd1d0c01abbe39daa49de37fab525a59678db241d2d2ebb36359c203a2e25c808c6b5f79

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.

  • 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 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe
    "C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious use of WriteProcessMemory
    PID:4532
    • 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:2508
      • 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=0xd8,0xfc,0x100,0xb0,0x104,0x7ffe59d146f8,0x7ffe59d14708,0x7ffe59d14718
        3⤵
          PID:2152
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2180 /prefetch:2
          3⤵
            PID:4184
          • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2284
          • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2932 /prefetch:8
            3⤵
              PID:1460
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --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=3328 /prefetch:1
              3⤵
                PID:1156
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --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=3900 /prefetch:1
                3⤵
                  PID:2784
                • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5232 /prefetch:8
                  3⤵
                    PID:1036
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5320 /prefetch:1
                    3⤵
                      PID:4980
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5332 /prefetch:1
                      3⤵
                        PID:2988
                      • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5944 /prefetch:8
                        3⤵
                          PID:4172
                        • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6148 /prefetch:8
                          3⤵
                            PID:5024
                          • 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:1380
                            • 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,0x7ff610c95460,0x7ff610c95470,0x7ff610c95480
                              4⤵
                                PID:2088
                            • 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6148 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:1852
                          • C:\Windows\SysWOW64\cmd.exe
                            cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe"
                            2⤵
                              PID:3860
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:3416
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
                              1⤵
                                PID:3112

                              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

                                7KB

                                MD5

                                dd612244aba7811fbd03718459d539e0

                                SHA1

                                693e245526fbd38c738e23e5547c81e6362ef4e8

                                SHA256

                                dd06877ca18039b91f1ec8813672f39b7470471630e657574b2f20d115a296b9

                                SHA512

                                23622b1bf7fb1c9d70f145fb68f5b75029d2643b95d2f8845b09cd1e7060136c6014de806cc46a8e8eb7dae1221eddfdaf30350edcdb424c17864ca6c7dfd312

                              • \??\pipe\LOCAL\crashpad_2508_GOVJDNSZAPRGMHER
                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                              • memory/1036-150-0x0000000000000000-mapping.dmp
                              • memory/1156-145-0x0000000000000000-mapping.dmp
                              • memory/1380-157-0x0000000000000000-mapping.dmp
                              • memory/1460-143-0x0000000000000000-mapping.dmp
                              • memory/1852-159-0x0000000000000000-mapping.dmp
                              • memory/2088-158-0x0000000000000000-mapping.dmp
                              • memory/2152-137-0x0000000000000000-mapping.dmp
                              • memory/2284-140-0x0000000000000000-mapping.dmp
                              • memory/2508-135-0x0000000000000000-mapping.dmp
                              • memory/2784-147-0x0000000000000000-mapping.dmp
                              • memory/2988-154-0x0000000000000000-mapping.dmp
                              • memory/3860-136-0x0000000000000000-mapping.dmp
                              • memory/4172-156-0x0000000000000000-mapping.dmp
                              • memory/4184-139-0x0000000000000000-mapping.dmp
                              • memory/4532-131-0x0000000003380000-0x00000000033A5000-memory.dmp
                                Filesize

                                148KB

                              • memory/4532-134-0x0000000003340000-0x0000000003367000-memory.dmp
                                Filesize

                                156KB

                              • memory/4532-132-0x0000000000400000-0x0000000000450000-memory.dmp
                                Filesize

                                320KB

                              • memory/4980-152-0x0000000000000000-mapping.dmp