Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/09/2026, 16:58

General

  • Target
    Signature Nib.exe
  • Size 12.0MB
  • Sample260912-vg83ea1cmc
  • SHA256 660f1a38bb5772fd54838a3d86d17fbe9b223f31f768eb1b1519e35f5f3f1684
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Windows directory 17 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Signature Nib.exe
    "C:\Users\Admin\AppData\Local\Temp\Signature Nib.exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --disable-features=msSmartScreenProtection --enable-features=MojoIpcz --mojo-named-platform-channel-pipe=2288.5084.4738757414582372729 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:716
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" /prefetch:4 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.139 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=122.0.2365.106 --initial-client-data=0x184,0x188,0x18c,0x160,0x194,0x7ffa34ff5fd8,0x7ffa34ff5fe4,0x7ffa34ff5ff0
        3⤵
          PID:5744
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=gpu-process --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1700 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:2 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
          3⤵
            PID:748
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2060 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:3 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
            3⤵
              PID:5564
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2336 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
              3⤵
                PID:4120
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc --ms-user-locale=" --mojo-platform-channel-handle=3540 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261 /prefetch:1
                3⤵
                  PID:4592
                • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                  "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=4508 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
                  3⤵
                    PID:4632
                  • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=gpu-process --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=10.0.26100.1301 --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAABEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=4512 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:6096
                  • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView" --webview-exe-name="Signature Nib.exe" --webview-exe-version=3.7.4 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=4628 --field-trial-handle=1364,i,18398291383710687830,18445299642990054138,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:39a0fd71392fef204a74932a89364ec100b8e261
                    3⤵
                      PID:2308

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      settings.dat

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 2bc1765b8160c76c2415a650980f5883e336d37549e23d75da551a7e03b935fa
                      • MD5 SHA1 SHA512 TLSH

                      settings.dat

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 1e4e8bbf520ebb52b6190ae4595cf6d70fdb1ee6e56aeda0b00ae0a1407bd595
                      • MD5 SHA1 SHA512

                      throttle_store.dat

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Crashpad\throttle_store.dat
                      • Size 20B
                      • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                      • MD5 SHA1 SHA512

                      3b26ece0-9cc3-4f86-a33b-0095544e06a7.tmp

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\3b26ece0-9cc3-4f86-a33b-0095544e06a7.tmp
                      • Size 6KB
                      • SHA256 7a68ea69de17e8cdd7b415c3f19a388c1c369f0cd3b440b60433eda0c86c8448
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      the-real-index

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 96B
                      • SHA256 e23a410387b4f5aa5ec5943441c68e10105ecec9707f42ff12eddb7814616e3f
                      • MD5 SHA1 SHA512 TLSH

                      the-real-index~RFe59aca1.TMP

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Code Cache\js\index-dir\the-real-index~RFe59aca1.TMP
                      • Size 48B
                      • SHA256 c1e727bd987df5d85d1d07245082b4c66eea12666a752a0ebe1201091dc68c15
                      • MD5 SHA1 SHA512

                      Network Persistent State

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Network\Network Persistent State
                      • Size 111B
                      • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                      • MD5 SHA1 SHA512 TLSH

                      Network Persistent State~RFe5a82be.TMP

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Network\Network Persistent State~RFe5a82be.TMP
                      • Size 59B
                      • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                      • MD5 SHA1 SHA512 TLSH

                      SCT Auditing Pending Reports

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Network\SCT Auditing Pending Reports
                      • Size 2B
                      • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                      • MD5 SHA1 SHA512

                      Preferences

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Preferences
                      • Size 6KB
                      • SHA256 6929c33e3113e14a8288f82e66b84d6e9cc25d83f015ac584e59a65541e3a097
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      CURRENT

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\Site Characteristics Database\CURRENT
                      • Size 16B
                      • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                      • MD5 SHA1 SHA512

                      MANIFEST-000001

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Default\shared_proto_db\metadata\MANIFEST-000001
                      • Size 41B
                      • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                      • MD5 SHA1 SHA512

                      data_0

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\GraphiteDawnCache\data_0
                      • Size 8KB
                      • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                      • MD5 SHA1 SHA512 SSDEEP

                      data_1

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\GraphiteDawnCache\data_1
                      • Size 264KB
                      • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                      • MD5 SHA1 SHA512 SSDEEP

                      data_2

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\GraphiteDawnCache\data_2
                      • Size 8KB
                      • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                      • MD5 SHA1 SHA512 SSDEEP

                      data_3

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\GraphiteDawnCache\data_3
                      • Size 8KB
                      • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                      • MD5 SHA1 SHA512 SSDEEP

                      Local State

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Local State
                      • Size 2KB
                      • SHA256 071d17bcf6e10c14e7f44df64f19de456b774a05d76b673797c0538be4b87936
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Local State
                      • Size 15KB
                      • SHA256 178829fdb44e5aec6bb8891c44a58eecee1981c59a6d77ebd024add4e7978cd0
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Local State
                      • Size 3KB
                      • SHA256 39a545fa244b62e5ea46ef7c3ada7da1c2c5ffea2e569820a192b86b9ec73ced
                      • MD5 SHA1 SHA512 TLSH

                      Local State~RFe595b74.TMP

                      • Path C:\Users\Admin\AppData\Roaming\Signature Nib.exe\EBWebView\Local State~RFe595b74.TMP
                      • Size 1KB
                      • SHA256 21f2916b68c8e067b78a3c28eaedded151a0db858cab8c9b15dbaa91adfee8a5
                      • MD5 SHA1 SHA512 TLSH

                      memory/748-26-0x00007FFA537B0000-0x00007FFA537B1000-memory.dmp

                      memory/4592-102-0x00007FFA537B0000-0x00007FFA537B1000-memory.dmp

                      memory/4632-224-0x00007FFA53F00000-0x00007FFA53F01000-memory.dmp

                      memory/4632-225-0x00007FFA52350000-0x00007FFA52351000-memory.dmp

                      memory/6096-291-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-289-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-288-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-287-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-286-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-282-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-280-0x000002829D3A0000-0x000002829D3A1000-memory.dmp

                      memory/6096-290-0x000002829D3A0000-0x000002829D3A1000-memory.dmp