Analysis

  • max time kernel
    76s
  • max time network
    84s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    28-05-2024 15:07

General

  • Target

    Stealerium/Builder.exe

  • Size

    216KB

  • MD5

    41dd506cd0525197e69d9c8592aed2a7

  • SHA1

    5d04b134c8f1800fbcd664898d34dee8d10d8fa8

  • SHA256

    dcd0162524ce4ae11f5c5e9b496e35ce6a096e5dea8e63b45fa835069737f87c

  • SHA512

    16ba073d871eb9a244b8e733c101e9fec98699d881440e0dfa661e9f331fda0789f232e4abd70dcff3649a5428049590461da83ab7f0078e3ed9c7fc2fbfb28b

  • SSDEEP

    6144:Klx3eDAIbr0K3xybL1tAj4PhFqFVfrRbP:Klx3mbr0P1tAj4P6r9

Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 11 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:\Users\Admin\AppData\Local\Temp\Stealerium\Builder.exe
    "C:\Users\Admin\AppData\Local\Temp\Stealerium\Builder.exe"
    1⤵
      PID:4760
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4808
      • 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:3220
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.0.1150052400\1167211876" -parentBuildID 20221007134813 -prefsHandle 1672 -prefMapHandle 1660 -prefsLen 20747 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {4400c54e-fcb5-445e-aef8-e3c9a6bb412e} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 1764 2391dded158 gpu
          3⤵
            PID:3824
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.1.403367979\803138168" -parentBuildID 20221007134813 -prefsHandle 2108 -prefMapHandle 2104 -prefsLen 20828 -prefMapSize 233444 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {e12432a0-5b85-432a-ba88-25d9d55d3b48} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 2120 23912d72258 socket
            3⤵
            • Checks processor information in registry
            PID:4044
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.2.1916792418\738911142" -childID 1 -isForBrowser -prefsHandle 3148 -prefMapHandle 3144 -prefsLen 20866 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f8ee6d20-60fb-4de6-a909-70b7a96850b0} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 3160 23922106258 tab
            3⤵
              PID:4860
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.3.474060354\261238277" -childID 2 -isForBrowser -prefsHandle 3164 -prefMapHandle 3420 -prefsLen 26109 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {4f7c3148-9811-487a-9806-d044a91b24bb} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 3456 23912d68d58 tab
              3⤵
                PID:1384
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.4.778815658\161984122" -childID 3 -isForBrowser -prefsHandle 4172 -prefMapHandle 4168 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {8beb90fe-eb5b-4bca-ae41-fc315648a09f} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 4180 23923cb2558 tab
                3⤵
                  PID:4436
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.5.949495412\397010450" -childID 4 -isForBrowser -prefsHandle 2500 -prefMapHandle 4924 -prefsLen 26249 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c21f27aa-7ef6-413f-8834-c21bb57293d6} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 2504 239253cfe58 tab
                  3⤵
                    PID:4776
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.6.522676685\166278038" -childID 5 -isForBrowser -prefsHandle 5056 -prefMapHandle 5060 -prefsLen 26249 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c5941477-c7df-4574-93fb-fea3296e51de} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 4908 23923cb5558 tab
                    3⤵
                      PID:2384
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.7.806107361\1644623214" -childID 6 -isForBrowser -prefsHandle 5280 -prefMapHandle 5288 -prefsLen 26249 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {206683f1-f1a8-40aa-b760-bf388403bfdb} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 5236 239253d2858 tab
                      3⤵
                        PID:1396
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3220.8.580661090\1345381079" -childID 7 -isForBrowser -prefsHandle 5636 -prefMapHandle 5640 -prefsLen 26249 -prefMapSize 233444 -jsInitHandle 1328 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f57d24f8-ff5e-4f7a-84af-e6ad5529239d} 3220 "\\.\pipe\gecko-crash-server-pipe.3220" 5648 23925581258 tab
                        3⤵
                          PID:3140

                    Network

                    MITRE ATT&CK Matrix ATT&CK v13

                    Discovery

                    Query Registry

                    2
                    T1012

                    System Information Discovery

                    1
                    T1082

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\41eh5pdr.default-release\cache2\entries\9902E140B540D26CF6D9EBAA6901D21E045AD01B
                      Filesize

                      215KB

                      MD5

                      de218ca5d1bcad2d6d50fcbd502db41b

                      SHA1

                      d411337d09e2a82ed94c82d6c3c99a3f3a8fb2ac

                      SHA256

                      12ca5d767d5569900588e4e658e84a0991f5822a74fd66f1a06f20eed5ff138e

                      SHA512

                      38f480e50d8044684b14d2225d60f66a80ee8aab0a39f67954945a6e862c9f6ae6970f252f1718998c031a642efdc91889bdade5317e349b696e7986cd552ac2

                    • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\41eh5pdr.default-release\cache2\entries\F418EE6A69EE0D4BEE92A028326F7F1CAA0585F3
                      Filesize

                      60KB

                      MD5

                      970bc887c2a214048bc014631044a17f

                      SHA1

                      4d8e7e78809b271a22713444304a55a49f2261e8

                      SHA256

                      340d400f6967132c64f4409f9dc75165c110f3b0837db29ce73da85652e35a94

                      SHA512

                      4ad3c64a6ef65a5e89e97006a6d92bf47c9282dcd8220da975f65b2b1755dc6cf03d80f3a3a02e31cf8d6a6090762481047d431eb249bdbd69f36a3c0498f6c3

                    • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\41eh5pdr.default-release\settings\main\ms-language-packs\browser\newtab\asrouter.ftl
                      Filesize

                      7KB

                      MD5

                      c460716b62456449360b23cf5663f275

                      SHA1

                      06573a83d88286153066bae7062cc9300e567d92

                      SHA256

                      0ec0f16f92d876a9c1140d4c11e2b346a9292984d9a854360e54e99fdcd99cc0

                      SHA512

                      476bc3a333aace4c75d9a971ef202d5889561e10d237792ca89f8d379280262ce98cf3d4728460696f8d7ff429a508237764bf4a9ccb59fd615aee07bdcadf30

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\datareporting\glean\db\data.safe.bin
                      Filesize

                      2KB

                      MD5

                      7118a3e30a5435795e6cea16110c2cc2

                      SHA1

                      65e2b3db659003f68201eac6539c253beebe3616

                      SHA256

                      4e4e2cdf7650e74791c988fa0e9d1686561ed97b9e4a3c00c4e31c745670960d

                      SHA512

                      fcd80d2e020932398d2fd5b8102911dc364c4fe02eeda7b0248a7aeec44b2198258620bc1125ceef7e911c1f5cb98123ba53905fb332402e248385c1b02d69ae

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\datareporting\glean\pending_pings\4f592b78-1428-467e-9083-300a326b358d
                      Filesize

                      12KB

                      MD5

                      cbb51d5e747b082f5bb934a0c3948131

                      SHA1

                      d2936d1c8d458617dc779c5f24ee03590e58e806

                      SHA256

                      8c0e1e77b3afbb3c1b7bc4c91a870d3e076b46cbf91361ec8830f58d7fc0556d

                      SHA512

                      2c5b0e6fb33af99aa67ae71b1bde14732cf3068d3408c59406414339b0a04d09deab01a29bef8375315ea2283598a32c97bf2406ea69582df4dccaeed200146e

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\datareporting\glean\pending_pings\fb64bf0b-bbcf-4c32-8517-e6ccae28d172
                      Filesize

                      746B

                      MD5

                      b3b7e49cbb683f775ff7bcacf922e53b

                      SHA1

                      7bbe4113e8a4211d0136fce492d13a42406d76bd

                      SHA256

                      8e143bda140ee47eae6f7e0bb8c6a3a8099c02dbaf7dd6e6937dfc7d3d15c2dd

                      SHA512

                      d08a46fc354ef3d16d5abef41f79adac99cdf345e30b15fed72aa323462c4b3ef754dd5cd4d50c538df1bcca78a48c44aa472932678a9919c37f217e59bca62a

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\prefs-1.js
                      Filesize

                      6KB

                      MD5

                      31fdf3bbf8bab4c9721b95bbfe429b61

                      SHA1

                      23ea70f856bd33bcc3738c46b7527977da253c29

                      SHA256

                      c00456e101ecaf71005523de4b60585180999280075e6b611b0ba1775d02c46c

                      SHA512

                      d76c3505961e57300684a309cef4a503fc1160418b10cbae3d732f971ecc42f0908a1ee5f85d3cf8321a75307a5a6683d9722b62433870076f846106fa10551a

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\prefs-1.js
                      Filesize

                      6KB

                      MD5

                      5e26f25c92b52afb8cdbc355f591ff8b

                      SHA1

                      6161e290346b17202ddaa73e255f79e5d393ca7a

                      SHA256

                      a019b09184361ca1cd2a85689b480f9f6ffe7b0deeed3ee55eee0b69a8677255

                      SHA512

                      46a6e055e37fb18f20c7e88225aefcd285c0a40d482c791bf401e7fc49462b607dafc788fc240543a252d7926d2afee5f8b2d9aeb722fb4d6762c8c58db22465

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\sessionCheckpoints.json.tmp
                      Filesize

                      259B

                      MD5

                      700fe59d2eb10b8cd28525fcc46bc0cc

                      SHA1

                      339badf0e1eba5332bff317d7cf8a41d5860390d

                      SHA256

                      4f5d849bdf4a5eeeb5da8836589e064e31c8e94129d4e55b1c69a6f98fb9f9ea

                      SHA512

                      3fa1b3fd4277d5900140e013b1035cb4c72065afcc6b6a8595b43101cfe7d09e75554a877e4a01bb80b0d7a58cdcfe553c4a9ef308c5695c5e77cb0ea99bada4

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\sessionstore-backups\recovery.jsonlz4
                      Filesize

                      3KB

                      MD5

                      6ae5b85f5cedf5d82f7743ecc53509bc

                      SHA1

                      a1f41f9d2b861f8934a4780726684be10c3d5b93

                      SHA256

                      bcb6a1499f028800d1f6fc0178a868cb5104e212ce2e2912602a5a29eb36ce36

                      SHA512

                      3cfe1a1ff6608d2a0b0fd693512e54f296938d6fc000ee97f56de0e8e8e69722c286bf0b10a74d573af65943df412028a48a9d52f4b106c4a790ff50c6a0fdd7

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\sessionstore-backups\recovery.jsonlz4
                      Filesize

                      4KB

                      MD5

                      9a6ebdffca177494879263a530f2cc5c

                      SHA1

                      3218b36d7ac06ad1c5d5b9e543cb00420273d08d

                      SHA256

                      4d1d607e8275afe3b2bca90ba89f63466f6336e3228803215cbc852c0c46e9fc

                      SHA512

                      31a07f7064591891ad0088c261f9562cd6e3a7c665384142218618187f188ce0c6fa6c910589b2ffe712b714f5cfd716af208be571f660abb17f00c4b3829ba3

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\sessionstore.jsonlz4
                      Filesize

                      4KB

                      MD5

                      1f4e8a065d41027c740eb1194a96ca41

                      SHA1

                      a24b0f3105921237656111e600f5fcba02d6dd89

                      SHA256

                      df96fe7c8b6a30323610e57df7c9c1a545cbd3610568fa78d2b54ea2c942a509

                      SHA512

                      193542fb890bdd5b777dc34338bd8715c85e8c039d0ba9674a532247078fd47d1fd313f765cfe4baf2fdcdfa2122087cf646bad220222055ee9ab6dac9ecedc8

                    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\41eh5pdr.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                      Filesize

                      184KB

                      MD5

                      81dab136a2da1190e77304a1b4a8a2d7

                      SHA1

                      7d9b92e6641172d9c4d72b810d9c7cc6d3815e65

                      SHA256

                      56097d1f244fe89bbe78ee3b8fcd17076781ab395edb361f721296636742dead

                      SHA512

                      cf587f0ff95f6841467299c8b995955daa6eb094e3a6c26df6a2c5a96eb9ee09fc968ac28141987afe0c55d976dff922715589eb4e1ede06f1abca21c56d0831