Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 03:49

General

  • Target

    39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff.exe

  • Size

    228KB

  • MD5

    740df801c26b6fa95b8afe3861bbb84f

  • SHA1

    86a8eeab02f782d14b653d4a42756a968d2f5494

  • SHA256

    39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff

  • SHA512

    0537a7bb6da72e74e85c9a10010e99199741214d5fcec2ca364d823bb24158adc8267f7de4109ccf09233446f8b1fb8e9e93b23cb516cc242fa325033d64e614

  • SSDEEP

    6144:XGks8C+sEQDu0irIuU5pmZbgXooP17xerO:E8jsx085pmZUPbcO

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Detected potential entity reuse from brand microsoft.
  • 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 registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff.exe
    "C:\Users\Admin\AppData\Local\Temp\39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
      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:2860
      • 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=0x10c,0x110,0x114,0xe8,0x118,0x7ff8d1a546f8,0x7ff8d1a54708,0x7ff8d1a54718
        3⤵
          PID:5016
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2156 /prefetch:2
          3⤵
            PID:4116
          • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2204 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:924
          • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2708 /prefetch:8
            3⤵
              PID:4428
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --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=3300 /prefetch:1
              3⤵
                PID:3412
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --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=3324 /prefetch:1
                3⤵
                  PID:4460
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5432 /prefetch:1
                  3⤵
                    PID:4760
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5396 /prefetch:1
                    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=2116,17630590244928432205,10267505257151468378,131072 --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=5824 /prefetch:1
                      3⤵
                        PID:716
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5416 /prefetch:1
                        3⤵
                          PID:4352
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5560 /prefetch:1
                          3⤵
                            PID:4572
                          • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4656 /prefetch:8
                            3⤵
                              PID:3912
                            • 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:4956
                              • 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=0xdc,0xe0,0xe4,0xf4,0xe8,0x7ff69b625460,0x7ff69b625470,0x7ff69b625480
                                4⤵
                                  PID:1508
                              • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6852 /prefetch:8
                                3⤵
                                  PID:2864
                                • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6852 /prefetch:8
                                  3⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:4632
                                • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6564 /prefetch:8
                                  3⤵
                                    PID:2196
                                  • 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=2116,17630590244928432205,10267505257151468378,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5832 /prefetch:8
                                    3⤵
                                      PID:4460
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17630590244928432205,10267505257151468378,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --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=4872 /prefetch:2
                                      3⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:3684
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=39c3bc94da657024ec3131e96b5071d0c605c1f61d40a7cde4919fbcf19a01ff.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
                                    2⤵
                                      PID:4080
                                      • 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,0x100,0x104,0xd8,0x108,0x7ff8d1a546f8,0x7ff8d1a54708,0x7ff8d1a54718
                                        3⤵
                                          PID:1220
                                    • C:\Windows\System32\CompPkgSrv.exe
                                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                                      1⤵
                                        PID:3724

                                      Network

                                      MITRE ATT&CK Matrix ATT&CK v6

                                      Persistence

                                      Registry Run Keys / Startup Folder

                                      1
                                      T1060

                                      Defense Evasion

                                      Modify Registry

                                      1
                                      T1112

                                      Discovery

                                      System Information Discovery

                                      2
                                      T1082

                                      Query Registry

                                      1
                                      T1012

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

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

                                        152B

                                        MD5

                                        71b657795f1d63721f304fcf46915016

                                        SHA1

                                        d2cabf753a2b8888642a3a26878e7f47784153b2

                                        SHA256

                                        f6d95ff8ef0a6098a3c31bedf0f623555cf3855bab0142f2350f07eb85832c28

                                        SHA512

                                        dd1d8e6e56463cba11da14b604c4dcedf13e1914c4afab93121f6535a30120e0d907c0129c6eebfc8a0a70a557d2f6d467a24fe0bac960c79519049e1931ea20

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

                                        152B

                                        MD5

                                        f647a9024e00f209b4882586b48a6d1c

                                        SHA1

                                        825a1e51260086c4261315dbc9704e1848fe5ff7

                                        SHA256

                                        77614c9d1cb42c41c0ce0415aecc9a20823ba79bdcdb8a27e90be7a16c57229b

                                        SHA512

                                        84961cc97defa398b0053b40453db58198b3e5bd2ad59770707ed11eb282eff479664253e616427826b40377e6486cdc1676369324617e5b5b0262b904f2ca9a

                                      • \??\pipe\LOCAL\crashpad_2860_CLXVNXFTROEYOJUB
                                        MD5

                                        d41d8cd98f00b204e9800998ecf8427e

                                        SHA1

                                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                                        SHA256

                                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                        SHA512

                                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                      • memory/716-153-0x0000000000000000-mapping.dmp
                                      • memory/924-136-0x0000000000000000-mapping.dmp
                                      • memory/1220-149-0x0000000000000000-mapping.dmp
                                      • memory/1508-161-0x0000000000000000-mapping.dmp
                                      • memory/2196-164-0x0000000000000000-mapping.dmp
                                      • memory/2860-132-0x0000000000000000-mapping.dmp
                                      • memory/3412-141-0x0000000000000000-mapping.dmp
                                      • memory/3684-167-0x0000000000000000-mapping.dmp
                                      • memory/3912-159-0x0000000000000000-mapping.dmp
                                      • memory/3936-148-0x0000000000000000-mapping.dmp
                                      • memory/4080-144-0x0000000000000000-mapping.dmp
                                      • memory/4116-135-0x0000000000000000-mapping.dmp
                                      • memory/4352-155-0x0000000000000000-mapping.dmp
                                      • memory/4428-139-0x0000000000000000-mapping.dmp
                                      • memory/4460-143-0x0000000000000000-mapping.dmp
                                      • memory/4460-166-0x0000000000000000-mapping.dmp
                                      • memory/4572-157-0x0000000000000000-mapping.dmp
                                      • memory/4632-162-0x0000000000000000-mapping.dmp
                                      • memory/4760-146-0x0000000000000000-mapping.dmp
                                      • memory/4956-160-0x0000000000000000-mapping.dmp
                                      • memory/5016-133-0x0000000000000000-mapping.dmp