Analysis

  • max time kernel
    2333s
  • max time network
    2328s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/03/2024, 03:29

General

  • Target
    benfile.vbs
  • Size 78B
  • Sample240326-d2b5qsce83
  • SHA256 e4eba14a008b2f1a8f374e760040f7d9cc240a00554bd88b087acb598f04f13a
  • MD5 SHA1 SHA512
Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 5 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\benfile.vbs"
    1⤵
      PID:624
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5248 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:1692
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4748 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:1588
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe"
          1⤵
          • Suspicious use of WriteProcessMemory
          PID:216
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe"
            2⤵
            • Checks processor information in registry
            • Modifies registry class
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3516
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.0.435535162\1200031608" -parentBuildID 20221007134813 -prefsHandle 1880 -prefMapHandle 1872 -prefsLen 20749 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {3403976f-ecce-4a18-a106-9bba2f513196} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 1960 283f1bee058 gpu
              3⤵
                PID:3580
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.1.370389014\98587461" -parentBuildID 20221007134813 -prefsHandle 2348 -prefMapHandle 2344 -prefsLen 20785 -prefMapSize 233444 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {c7cc99df-c6cc-44c3-a09e-72563fc4b8cf} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 2360 283f1afa258 socket
                3⤵
                  PID:3888
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.2.516868854\1050741160" -childID 1 -isForBrowser -prefsHandle 3056 -prefMapHandle 2904 -prefsLen 20888 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b589925e-5483-484b-b6a2-d86033ea8a9f} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 3176 283f1b60058 tab
                  3⤵
                    PID:1404
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.3.1889443257\38801343" -childID 2 -isForBrowser -prefsHandle 3616 -prefMapHandle 3612 -prefsLen 26066 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {16f11847-94ba-4811-8032-c2c3d1557d20} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 3624 283f43fee58 tab
                    3⤵
                      PID:684
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.4.541329000\1471264134" -childID 3 -isForBrowser -prefsHandle 3920 -prefMapHandle 3916 -prefsLen 26066 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ff74addd-5f72-4a03-8ad4-9fdb68cfdce6} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 3924 283f6e38458 tab
                      3⤵
                        PID:4816
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.5.89763228\495897492" -childID 4 -isForBrowser -prefsHandle 5260 -prefMapHandle 5064 -prefsLen 26206 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {fcdd9c32-fac7-43a6-a74a-b4d4884207fb} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 4908 283f1afc958 tab
                        3⤵
                          PID:3172
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.6.791507699\1895282103" -childID 5 -isForBrowser -prefsHandle 5296 -prefMapHandle 5300 -prefsLen 26206 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5510fb9c-835a-4ab5-b993-d2bd557f5db0} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 5288 283f7e8f758 tab
                          3⤵
                            PID:2800
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.7.2122189868\445246261" -childID 6 -isForBrowser -prefsHandle 5488 -prefMapHandle 5492 -prefsLen 26206 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {4d07ed2d-d4fc-4bc3-bd73-11619126470b} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 5572 283f7e91858 tab
                            3⤵
                              PID:4052
                            • C:\Program Files\Mozilla Firefox\firefox.exe
                              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3516.8.540210994\188048327" -childID 7 -isForBrowser -prefsHandle 5844 -prefMapHandle 3912 -prefsLen 26206 -prefMapSize 233444 -jsInitHandle 1380 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {397996af-0795-4bc4-b23f-8d4d4d5d242b} 3516 "\\.\pipe\gecko-crash-server-pipe.3516" 4892 283e5271f58 tab
                              3⤵
                                PID:1344
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                            1⤵
                            • Drops file in Windows directory
                            • Modifies data under HKEY_USERS
                            • Suspicious use of AdjustPrivilegeToken
                            PID:3548

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                20178

                                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\4s2odj76.default-release\cache2\doomed\20178
                                • Size 9KB
                                • SHA256 d4bbd1e623989c3070d2488fb7bbd1e79d3771b13a98622e7d160f9832397d13
                                • MD5 SHA1 SHA512 SSDEEP

                                tmpaddon

                                • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                                • Size 442KB
                                • SHA256 a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e
                                • MD5 SHA1 SHA512 SSDEEP

                                tmpaddon-1

                                • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
                                • Size 8.0MB
                                • SHA256 345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42
                                • MD5 SHA1 SHA512 SSDEEP

                                6824f4a902c78fbd.customDestinations-ms

                                • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6824f4a902c78fbd.customDestinations-ms
                                • Size 7KB
                                • SHA256 0445192d849eb4b284b626f9f8357984ed55781e8b336fc349dcd05e6ed0d85f
                                • MD5 SHA1 SHA512 SSDEEP

                                addonStartup.json.lz4

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\addonStartup.json.lz4
                                • Size 5KB
                                • SHA256 9b2c48678582b72ec0a97b0420841792ffda6e7c9f2da1b01c119d4e55360400
                                • MD5 SHA1 SHA512 SSDEEP

                                bookmarks-2024-03-26_11_8isp+gHyP3QyHg7eXV012w==.jsonlz4

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\bookmarkbackups\bookmarks-2024-03-26_11_8isp+gHyP3QyHg7eXV012w==.jsonlz4
                                • Size 950B
                                • SHA256 1496d4f20935c304d2e661264713fb152b1558850d404b59353a09e7f830c264
                                • MD5 SHA1 SHA512

                                broadcast-listeners.json

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\broadcast-listeners.json
                                • Size 204B
                                • SHA256 9cf589357fceea2f37cd1a925e5d33fd517a44d22a16c357f7fb5d4d187034aa
                                • MD5 SHA1 SHA512

                                data.safe.bin

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\datareporting\glean\db\data.safe.bin
                                • Size 9KB
                                • SHA256 dfa8785ceeee7624b4a94139c52b61816cd4217e71a1d5f7a7d10772c1d9148b
                                • MD5 SHA1 SHA512 SSDEEP

                                bd29dd82-1cb2-41bc-acb1-29e25c3ef351

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\datareporting\glean\pending_pings\bd29dd82-1cb2-41bc-acb1-29e25c3ef351
                                • Size 734B
                                • SHA256 c83242f7ff90e75abe82684cf15dbf16ade1bd9321d7aeff9867616cc017b64b
                                • MD5 SHA1 SHA512

                                gmpopenh264.dll

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll
                                • Size 997KB
                                • SHA256 1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e
                                • MD5 SHA1 SHA512 SSDEEP

                                gmpopenh264.info

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info
                                • Size 116B
                                • SHA256 f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
                                • MD5 SHA1 SHA512

                                LICENSE.txt

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt
                                • Size 479B
                                • SHA256 2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539
                                • MD5 SHA1 SHA512

                                manifest.json

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json
                                • Size 372B
                                • SHA256 e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd
                                • MD5 SHA1 SHA512

                                widevinecdm.dll

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll
                                • Size 9.9MB
                                • SHA256 4839c8a3ef529f4ab258727b0f6d3cc615cf2b8861f29e326ce60acef6de610b
                                • MD5 SHA1 SHA512 SSDEEP

                                widevinecdm.dll.lib

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib
                                • Size 1KB
                                • SHA256 33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237
                                • MD5 SHA1 SHA512

                                widevinecdm.dll.sig

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig
                                • Size 1KB
                                • SHA256 68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81
                                • MD5 SHA1 SHA512

                                prefs-1.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs-1.js
                                • Size 6KB
                                • SHA256 6df8b223633816fee7ba14f48d1b40dddab075b152ce1b356fd51e65fe32eb26
                                • MD5 SHA1 SHA512 SSDEEP

                                prefs-1.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs-1.js
                                • Size 7KB
                                • SHA256 587905a568d43f1dab850640e8ec777d0711b90cb328f4e7336aab46b6b85f32
                                • MD5 SHA1 SHA512 SSDEEP

                                prefs-1.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs-1.js
                                • Size 7KB
                                • SHA256 5d93df529c3826c701b948696c2121ac0da3f10fdebca3d810ae7448c30e3ef2
                                • MD5 SHA1 SHA512 SSDEEP

                                prefs-1.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs-1.js
                                • Size 6KB
                                • SHA256 81d7c4473668ca68553a142d630c9582e0a53d09c7844c7f034eaf91b5aa62b4
                                • MD5 SHA1 SHA512 SSDEEP

                                prefs.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs.js
                                • Size 6KB
                                • SHA256 c186c2dd9bae6a75a7adfd99102b1a8b37126b5448ddd72e6dd0cc98eac2ea06
                                • MD5 SHA1 SHA512 SSDEEP

                                prefs.js

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\prefs.js
                                • Size 6KB
                                • SHA256 a2f30423ab6a41e0fc8186852b4b1ebe4d88ae8ac2948d42a42f11486aa758c6
                                • MD5 SHA1 SHA512 SSDEEP

                                sessionCheckpoints.json

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\sessionCheckpoints.json
                                • Size 90B
                                • SHA256 00ad9799527c3fd21f3a85012565eae817490f3e0d417413bf9567bb5909f6a2
                                • MD5 SHA1 SHA512

                                recovery.jsonlz4

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\sessionstore-backups\recovery.jsonlz4
                                • Size 3KB
                                • SHA256 80efd3e22f4ad4090642b9d2768746ac915f36f33c9ba4f8fa8c7cd21fe175fa
                                • MD5 SHA1 SHA512

                                recovery.jsonlz4

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\sessionstore-backups\recovery.jsonlz4
                                • Size 4KB
                                • SHA256 536add5f2477cf36cc69e70d603df2f2e1c99c291b9ac56d5f8a7e0c167876de
                                • MD5 SHA1 SHA512 SSDEEP

                                recovery.jsonlz4

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\sessionstore-backups\recovery.jsonlz4
                                • Size 4KB
                                • SHA256 cb22292f75db4c3196debc8690ad6b7af93d7cd64fecf01ad20b7692a16594b9
                                • MD5 SHA1 SHA512 SSDEEP

                                targeting.snapshot.json

                                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\4s2odj76.default-release\targeting.snapshot.json
                                • Size 3KB
                                • SHA256 87f49658fa026104aa0582d64740a1b112584e7c6ee16007896888fd95791b30
                                • MD5 SHA1 SHA512