Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 11:33

General

  • Target

    7fbe8eb4b95cd644fff51b464ee2a1f8ab0e8eebb42d3fa27c2917c21a0058a1.exe

  • Size

    407KB

  • MD5

    61dd8cdb5b9680aef47d3712c311ee37

  • SHA1

    11f1b48ded997ee4bdb017ee9006aef23fdce05f

  • SHA256

    7fbe8eb4b95cd644fff51b464ee2a1f8ab0e8eebb42d3fa27c2917c21a0058a1

  • SHA512

    af09b9b9c314216df66df894c65909f2b2f824c657ebeace05ecdea629fb8b66c6523248ca98ab68685c2cdac2efae57d608987a501ad51af085e78c30139bb8

  • SSDEEP

    12288:grEU8FSDKXHtLYsQhjUhaWeL8cM9+P6eOaa:YEU8FKKXHtLYnmhVeL8cMw6eO/

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Detected potential entity reuse from brand microsoft.
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 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 15 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fbe8eb4b95cd644fff51b464ee2a1f8ab0e8eebb42d3fa27c2917c21a0058a1.exe
    "C:\Users\Admin\AppData\Local\Temp\7fbe8eb4b95cd644fff51b464ee2a1f8ab0e8eebb42d3fa27c2917c21a0058a1.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\winlogon.exe
      C:\winlogon.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1140
      • 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=winlogon.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
        3⤵
        • 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:784
        • 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,0x100,0xd4,0x104,0x7ffa11c246f8,0x7ffa11c24708,0x7ffa11c24718
          4⤵
            PID:3428
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2276 /prefetch:2
            4⤵
              PID:2696
            • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2328 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3416
            • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2688 /prefetch:8
              4⤵
                PID:3456
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=3576 /prefetch:1
                4⤵
                  PID:4288
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=3600 /prefetch:1
                  4⤵
                    PID:3772
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=3300 /prefetch:1
                    4⤵
                      PID:3524
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=5980 /prefetch:1
                      4⤵
                        PID:5056
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=5996 /prefetch:1
                        4⤵
                          PID:3716
                        • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5680 /prefetch:8
                          4⤵
                            PID:3156
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=6676 /prefetch:1
                            4⤵
                              PID:4740
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=6996 /prefetch:1
                              4⤵
                                PID:8
                              • 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
                                4⤵
                                • Drops file in Program Files directory
                                PID:2712
                                • 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,0x7ff6b2c55460,0x7ff6b2c55470,0x7ff6b2c55480
                                  5⤵
                                    PID:2484
                                • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5776 /prefetch:8
                                  4⤵
                                    PID:1336
                                  • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5776 /prefetch:8
                                    4⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:3216
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,6895101292040637910,8187507339028030724,131072 --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=3396 /prefetch:2
                                    4⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:2712
                                  • 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=2120,6895101292040637910,8187507339028030724,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3420 /prefetch:8
                                    4⤵
                                      PID:3836
                                  • 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=winlogon.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
                                    3⤵
                                      PID:5104
                                      • 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,0x100,0xd4,0x104,0x7ffa11c246f8,0x7ffa11c24708,0x7ffa11c24718
                                        4⤵
                                          PID:1908
                                  • C:\Windows\System32\CompPkgSrv.exe
                                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                                    1⤵
                                      PID:4756

                                    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

                                      71b657795f1d63721f304fcf46915016

                                      SHA1

                                      d2cabf753a2b8888642a3a26878e7f47784153b2

                                      SHA256

                                      f6d95ff8ef0a6098a3c31bedf0f623555cf3855bab0142f2350f07eb85832c28

                                      SHA512

                                      dd1d8e6e56463cba11da14b604c4dcedf13e1914c4afab93121f6535a30120e0d907c0129c6eebfc8a0a70a557d2f6d467a24fe0bac960c79519049e1931ea20

                                    • C:\winlogon.exe
                                      Filesize

                                      2KB

                                      MD5

                                      4428c969f83fe0fb6bb2a635fe605bce

                                      SHA1

                                      15efa531bc399c5e92d72cf266f8e18b4ec78bb0

                                      SHA256

                                      458b17876c0ea9ce182b9966f97d7617600ac6cb95c363cc7f33aec420424151

                                      SHA512

                                      4896c3e06391a7caca83ae36fd2a093af81ad6165979ed23232fb35a4d85a7188ecbbc66e720c4cd3d86e4c5546848ce7b02e5d8e28cd02ca0c246b091e9d809

                                    • C:\winlogon.exe
                                      Filesize

                                      2KB

                                      MD5

                                      4428c969f83fe0fb6bb2a635fe605bce

                                      SHA1

                                      15efa531bc399c5e92d72cf266f8e18b4ec78bb0

                                      SHA256

                                      458b17876c0ea9ce182b9966f97d7617600ac6cb95c363cc7f33aec420424151

                                      SHA512

                                      4896c3e06391a7caca83ae36fd2a093af81ad6165979ed23232fb35a4d85a7188ecbbc66e720c4cd3d86e4c5546848ce7b02e5d8e28cd02ca0c246b091e9d809

                                    • \??\pipe\LOCAL\crashpad_784_IETSDJUVGASRGMQT
                                      MD5

                                      d41d8cd98f00b204e9800998ecf8427e

                                      SHA1

                                      da39a3ee5e6b4b0d3255bfef95601890afd80709

                                      SHA256

                                      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                      SHA512

                                      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                    • memory/8-165-0x0000000000000000-mapping.dmp
                                    • memory/784-138-0x0000000000000000-mapping.dmp
                                    • memory/1140-134-0x0000000000400000-0x000000000042E000-memory.dmp
                                      Filesize

                                      184KB

                                    • memory/1140-133-0x0000000000000000-mapping.dmp
                                    • memory/1908-147-0x0000000000000000-mapping.dmp
                                    • memory/2484-167-0x0000000000000000-mapping.dmp
                                    • memory/2696-141-0x0000000000000000-mapping.dmp
                                    • memory/2712-166-0x0000000000000000-mapping.dmp
                                    • memory/2712-169-0x0000000000000000-mapping.dmp
                                    • memory/3156-161-0x0000000000000000-mapping.dmp
                                    • memory/3216-168-0x0000000000000000-mapping.dmp
                                    • memory/3416-142-0x0000000000000000-mapping.dmp
                                    • memory/3428-139-0x0000000000000000-mapping.dmp
                                    • memory/3456-145-0x0000000000000000-mapping.dmp
                                    • memory/3524-155-0x0000000000000000-mapping.dmp
                                    • memory/3716-159-0x0000000000000000-mapping.dmp
                                    • memory/3772-153-0x0000000000000000-mapping.dmp
                                    • memory/3836-171-0x0000000000000000-mapping.dmp
                                    • memory/3896-132-0x0000000075510000-0x0000000075AC1000-memory.dmp
                                      Filesize

                                      5.7MB

                                    • memory/3896-137-0x0000000075510000-0x0000000075AC1000-memory.dmp
                                      Filesize

                                      5.7MB

                                    • memory/4288-151-0x0000000000000000-mapping.dmp
                                    • memory/4740-163-0x0000000000000000-mapping.dmp
                                    • memory/5056-157-0x0000000000000000-mapping.dmp
                                    • memory/5104-146-0x0000000000000000-mapping.dmp