Analysis

  • max time kernel
    141s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 23:22

General

  • Target

    a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065.exe

  • Size

    108KB

  • MD5

    a70e260bae5075bfe6954e2381d81afe

  • SHA1

    9dc345e5ff8530d5b1f97c950636fec21f9b07a6

  • SHA256

    a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065

  • SHA512

    166c4fbf8f9f5363be2607028cb2b0ffb9e587529f25152e94e60fee352cbd5dd955359904f1c4b5bdd3945f2a4d653b90054b8403479e863bf9190ce18b8cf0

  • SSDEEP

    1536:Pe642nDM6OmKaVPAutsG36l87moMgj1MZQGbqMj7xZwI1OmC6innsRulqQV+nbH:PewDjAutBqlamzZVmM3HwVsFXbH

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\a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065.exe
    "C:\Users\Admin\AppData\Local\Temp\a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2444
    • 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=a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065.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:4744
      • 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=0x100,0x104,0x108,0xdc,0x10c,0x7ff8356e46f8,0x7ff8356e4708,0x7ff8356e4718
        3⤵
          PID:3944
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
          3⤵
            PID:1584
          • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2324 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3060
          • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2736 /prefetch:8
            3⤵
              PID:880
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=3032 /prefetch:1
              3⤵
                PID:4524
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=3044 /prefetch:1
                3⤵
                  PID:4780
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=4424 /prefetch:1
                  3⤵
                    PID:3268
                  • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3676 /prefetch:8
                    3⤵
                      PID:4800
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=5300 /prefetch:1
                      3⤵
                        PID:4004
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=5260 /prefetch:1
                        3⤵
                          PID:2272
                        • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5896 /prefetch:8
                          3⤵
                            PID:4756
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6100 /prefetch:1
                            3⤵
                              PID:2160
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6148 /prefetch:1
                              3⤵
                                PID:4688
                              • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3528 /prefetch:8
                                3⤵
                                  PID:540
                                • 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:2208
                                  • 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=0x22c,0x230,0x234,0x208,0x238,0x7ff697a15460,0x7ff697a15470,0x7ff697a15480
                                    4⤵
                                      PID:948
                                  • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3528 /prefetch:8
                                    3⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:828
                                  • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1308 /prefetch:8
                                    3⤵
                                      PID:3240
                                    • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3096 /prefetch:8
                                      3⤵
                                        PID:1296
                                      • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6456 /prefetch:8
                                        3⤵
                                          PID:3396
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,9858916644102872530,1775107326644538004,131072 --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=1840 /prefetch:2
                                          3⤵
                                          • Suspicious behavior: EnumeratesProcesses
                                          PID:4600
                                        • 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=2120,9858916644102872530,1775107326644538004,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6352 /prefetch:8
                                          3⤵
                                            PID:4008
                                        • 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=a8a5fab5158369f3e4caf83f51f718267905a33c82ca3903375406af7cbab065.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
                                          2⤵
                                            PID:4168
                                            • 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,0x100,0xd4,0x104,0x7ff8356e46f8,0x7ff8356e4708,0x7ff8356e4718
                                              3⤵
                                                PID:1492
                                          • C:\Windows\System32\CompPkgSrv.exe
                                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                                            1⤵
                                              PID:4500

                                            Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

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

                                              Filesize

                                              152B

                                              MD5

                                              1aa7e0f203b5b0b2f753567d77fbe2d9

                                              SHA1

                                              443937fd906e3a356a6689181b29a9e849f54209

                                              SHA256

                                              27f1577aa081b2222b6549e74de58ef60bf0a054c7b2a345366e6ebbf44fab8c

                                              SHA512

                                              ce2fff1ddfab2e82f4e8ec6b3d04405f9fb2ad07dccfdde404411de9bbc66033610ad1689316173878be9758bb822612d4a931901e1ed4bbbd41199c2885debf

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

                                              Filesize

                                              152B

                                              MD5

                                              b8814439123c54cbc8e61bb010a24511

                                              SHA1

                                              403ad16668fc85e4ef366f00749eaec0f88b94b0

                                              SHA256

                                              ee60f00dcded0ed07c9c88d582efde48ddc73d1f1a28081d5e2dea006c4ac894

                                              SHA512

                                              de05eaa43d562783009cb1ade9c87f3d1b1020c951067d2f95dbab698b5f35271790bb9a547dd30cacf68783e09a4bdd1dfbfcf8cf53343b132b9c3d6c4d2800

                                            • \??\pipe\LOCAL\crashpad_4744_UBGPMBDGHYJYEBDY

                                              MD5

                                              d41d8cd98f00b204e9800998ecf8427e

                                              SHA1

                                              da39a3ee5e6b4b0d3255bfef95601890afd80709

                                              SHA256

                                              e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                              SHA512

                                              cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                            • memory/828-166-0x0000000000000000-mapping.dmp

                                            • memory/880-140-0x0000000000000000-mapping.dmp

                                            • memory/948-165-0x0000000000000000-mapping.dmp

                                            • memory/1296-170-0x0000000000000000-mapping.dmp

                                            • memory/1492-142-0x0000000000000000-mapping.dmp

                                            • memory/1584-136-0x0000000000000000-mapping.dmp

                                            • memory/2160-161-0x0000000000000000-mapping.dmp

                                            • memory/2208-164-0x0000000000000000-mapping.dmp

                                            • memory/2272-157-0x0000000000000000-mapping.dmp

                                            • memory/2444-132-0x00000000002A0000-0x00000000002BE000-memory.dmp

                                              Filesize

                                              120KB

                                            • memory/2444-144-0x00000000002A0000-0x00000000002BE000-memory.dmp

                                              Filesize

                                              120KB

                                            • memory/3060-137-0x0000000000000000-mapping.dmp

                                            • memory/3240-168-0x0000000000000000-mapping.dmp

                                            • memory/3268-150-0x0000000000000000-mapping.dmp

                                            • memory/3396-172-0x0000000000000000-mapping.dmp

                                            • memory/3944-134-0x0000000000000000-mapping.dmp

                                            • memory/4004-155-0x0000000000000000-mapping.dmp

                                            • memory/4008-175-0x0000000000000000-mapping.dmp

                                            • memory/4168-141-0x0000000000000000-mapping.dmp

                                            • memory/4524-146-0x0000000000000000-mapping.dmp

                                            • memory/4600-173-0x0000000000000000-mapping.dmp

                                            • memory/4688-163-0x0000000000000000-mapping.dmp

                                            • memory/4744-133-0x0000000000000000-mapping.dmp

                                            • memory/4756-159-0x0000000000000000-mapping.dmp

                                            • memory/4780-148-0x0000000000000000-mapping.dmp

                                            • memory/4800-152-0x0000000000000000-mapping.dmp