Resubmissions

06-07-2024 00:02

240706-abqzessckb 10

05-07-2024 22:21

240705-19zbkazekf 10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-07-2024 00:02

General

  • Target

    https://updown.link/file/b62j02

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Downloads MZ/PE file
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://updown.link/file/b62j02
    1⤵
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1016
    • 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,0x100,0x104,0xd8,0x108,0x7fff2d8746f8,0x7fff2d874708,0x7fff2d874718
      2⤵
        PID:1192
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2068 /prefetch:2
        2⤵
          PID:6068
        • 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=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2496 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1032
        • 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=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2692 /prefetch:8
          2⤵
            PID:720
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3316 /prefetch:1
            2⤵
              PID:3396
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3340 /prefetch:1
              2⤵
                PID:3992
              • 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=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5104 /prefetch:8
                2⤵
                  PID:3872
                • 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=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5104 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:5064
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3968 /prefetch:1
                  2⤵
                    PID:376
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5376 /prefetch:1
                    2⤵
                      PID:3476
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=3456 /prefetch:8
                      2⤵
                        PID:3948
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5648 /prefetch:1
                        2⤵
                          PID:1424
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=6096 /prefetch:8
                          2⤵
                            PID:4892
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6248 /prefetch:1
                            2⤵
                              PID:4748
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6280 /prefetch:1
                              2⤵
                                PID:3184
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2032,9655429133551721995,14801198293928694435,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --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=4812 /prefetch:2
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4052
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4612
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4008

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

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

                                  152B

                                  MD5

                                  f0f818d52a59eb6cf9c4dd2a1c844df9

                                  SHA1

                                  26afc4b28c0287274624690bd5bd4786cfe11d16

                                  SHA256

                                  58c0beea55fecbeded2d2c593473149214df818be1e4e4a28c97171dc8179d61

                                  SHA512

                                  7e8a1d3a6c8c9b0f1ac497e509e9edbe9e121df1df0147ce4421b8cf526ad238bd146868e177f9ce02e2d8f99cf7bb9ce7db4a582d487bbc921945211a977509

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

                                  152B

                                  MD5

                                  0331fa75ac7846bafcf885ea76d47447

                                  SHA1

                                  5a141ffda430e091153fefc4aa36317422ba28ae

                                  SHA256

                                  64b4b2e791644fc04f164ecd13b8b9a3e62669896fb7907bf0a072bbeebaf74a

                                  SHA512

                                  f8b960d38d73cf29ce17ea409ef6830cae99d7deafaf2ff59f8347120d81925ff16e38faaa0f7f4c39936472d05d1d131df2a8a383351f138c38afb21c1a60e2

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                  Filesize

                                  360B

                                  MD5

                                  eff22f5a825dc28d74468aaf26521cbb

                                  SHA1

                                  f510247cbd592309c088765d2fac86a2cc4572e4

                                  SHA256

                                  2ef496561995229094f9e53ba7cbb493838fb8a09093c12bd94f50ad8ea964fc

                                  SHA512

                                  4091e047749896ce993d6ee248e3e7da21ff5fe0c01e5ce633b581480c337e7c64a09eea5a6d3d7996d5b26e5d5e6742d2243bf275ac1cf9ce448f59dd5d9448

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                  Filesize

                                  336B

                                  MD5

                                  b1de2bd6394eb41d6029a526d3662dbf

                                  SHA1

                                  13ac476f21eb5a44c26c58f2032cc2af97171529

                                  SHA256

                                  c43267495ad446a9b807e729fc3175a479c2516d00cc9c712ea4dd30f6858174

                                  SHA512

                                  7ab63aad7eb124fbbe86ea5aa5c1281a7e724e4fb8930c65e5cb2fed49914d6bb6bbecc0aff32fc92711158ceee946c2700609d620b2618da6416fc4959b3ea0

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                  Filesize

                                  443B

                                  MD5

                                  17d20ae7dc49c24c09afc9872c081fda

                                  SHA1

                                  adcb3603eca3d5c8a64090541fd23e7ab3ad7555

                                  SHA256

                                  aa3d56c8ce347ad500137bf96c0e381db99cf9f54ddbd39a8921a993eefe9f9a

                                  SHA512

                                  85ccca19d1639c8c765893f6aa067a8dc56dbec9a3214fa4d4fe4d3179dcde99f48ed8fe16723452f093d087cab175b73af6f69cb4ac8530c94f2e8743bd6b3d

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                  Filesize

                                  6KB

                                  MD5

                                  17b1fb707f32c000edd7c31c06c6170a

                                  SHA1

                                  202d1ec18871a0e64d3ec326005533efbde43cd4

                                  SHA256

                                  0b1422781150d3ba162a45a743bc7cd1d2ebb13036b05517caff578a25fc81ee

                                  SHA512

                                  84e7a9a170420f8c528e418eaf6744b87536b80d1b3bf464c80fad3e534e62017f0c3f65523cefbf99e3d27181aab6024891f066588a88c1d51adbdf5da907f5

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                  Filesize

                                  6KB

                                  MD5

                                  473bc58ba39bdb4b17862eb0b973fd3d

                                  SHA1

                                  13959942c0fb250cd95df5eef7a5df195b265a9d

                                  SHA256

                                  e14820483823785c34609f7e2d5b3d8258e84c5460bc4f214129555eb9ed88a4

                                  SHA512

                                  8597c6a767a64722d8ad0a179d913cbf1e9873cabd4ba8f65689cb4a8c3c05937d9629ef7f7d859df139d9cff0659a840d5345b15f3d1191a340b17f364969fc

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                  Filesize

                                  16B

                                  MD5

                                  206702161f94c5cd39fadd03f4014d98

                                  SHA1

                                  bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                  SHA256

                                  1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                  SHA512

                                  0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                  Filesize

                                  16B

                                  MD5

                                  46295cac801e5d4857d09837238a6394

                                  SHA1

                                  44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                  SHA256

                                  0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                  SHA512

                                  8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                  Filesize

                                  11KB

                                  MD5

                                  c23a61dbbbaf6477515f52e5981fd429

                                  SHA1

                                  3f836d713e5489e924bd92be2eefe1907babf1f3

                                  SHA256

                                  2761ffb190e2edbc83197dbbb82d5fb40c518df58f1d42fa5441141052427cae

                                  SHA512

                                  3a5c5bc5cdf12378ea941d781f466cff3b90dfc544a894b03ecacc5586aceed5542e9cbe49faa482a83a14bd8a368f5c3be6e9232801db0eba486280ebf70f6f

                                • C:\Users\Admin\Downloads\Unconfirmed 630479.crdownload
                                  Filesize

                                  482KB

                                  MD5

                                  f0463e89e4d196f296afb160224f63b0

                                  SHA1

                                  1ada6bf36121d08f96f4a09402774d3d5a065a7d

                                  SHA256

                                  d891136336eb391236b2cc2f6749440d9eb4dc8fc517eb1262cf739276657073

                                  SHA512

                                  8aacfd6f7c745d41bc639d90cb841652541ec17f7f745bd3ee9f2d24458b3b0c1a5d6b9d50a1e9a50a3e583841e4a443f8d930e626365bc729bff93d19528e34

                                • \??\pipe\LOCAL\crashpad_1016_XZBAFQBLWZYQFCOQ
                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e