Analysis

  • max time kernel
    206s
  • max time network
    222s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 14:53

General

  • Target

    Brain.A.zip

  • Size

    286KB

  • MD5

    d233096f5a149aab0322bfd2e72aebb4

  • SHA1

    2059dcd4adda140b042e65b0b0539fa4f27cf141

  • SHA256

    03eb8137f1276e939f6eff4dbf8b8ef68001c2c245bfbc537347153a2fa9f0ed

  • SHA512

    1934513f819cc64411aecf583d079dc02baaffbb3583883cb4bb5c4acf84c56405d3a0addd13186b2ac62a51babe235d47c1315734f10afa2c3800251fbdbca0

  • SSDEEP

    6144:ouoG32n9ddKM2vkm0aWyRv3091vZJT3CqbMrhryfQNRPaCieMjAkvCJv1Vi0Zj33:JoG32n9ddKM2vkm0aWyRv3091vZJT3Cz

Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 11 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Modifies registry class 1 IoCs
  • NTFS ADS 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Brain.A.zip
    1⤵
      PID:2220
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:2824
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2604
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe"
          2⤵
          • Checks processor information in registry
          • Modifies registry class
          • NTFS ADS
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2640
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.0.1361807314\553850994" -parentBuildID 20221007134813 -prefsHandle 1208 -prefMapHandle 1188 -prefsLen 20749 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {eb758230-205c-46ea-9040-6c2762defa68} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 1284 11fb9058 gpu
            3⤵
              PID:2516
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.1.1447810407\2082435966" -parentBuildID 20221007134813 -prefsHandle 1476 -prefMapHandle 1472 -prefsLen 20830 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {fc7641be-e19f-4621-9f68-4d73c1e1afbf} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 1488 e70758 socket
              3⤵
                PID:2436
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.2.376217951\827276050" -childID 1 -isForBrowser -prefsHandle 1964 -prefMapHandle 1980 -prefsLen 20933 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {2d44400c-413a-44e7-9d86-9f7064c34089} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 2224 19f68c58 tab
                3⤵
                  PID:1656
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.3.1694733760\1972740265" -childID 2 -isForBrowser -prefsHandle 2540 -prefMapHandle 540 -prefsLen 26111 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {65922f52-17e3-42d6-bdce-41b5a191f3b3} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 1628 e68458 tab
                  3⤵
                    PID:1948
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.4.1566763895\1169853285" -childID 3 -isForBrowser -prefsHandle 2924 -prefMapHandle 2904 -prefsLen 26111 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {be1b7847-39df-4571-ab6e-29c76b26d735} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 2940 1bc61558 tab
                    3⤵
                      PID:1060
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.5.1676555872\688110987" -childID 4 -isForBrowser -prefsHandle 3708 -prefMapHandle 3728 -prefsLen 26251 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f22b8976-e61b-414e-8cc8-ca4771c0872a} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 3744 1e08df58 tab
                      3⤵
                        PID:1896
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.6.683797457\91852139" -childID 5 -isForBrowser -prefsHandle 3856 -prefMapHandle 3860 -prefsLen 26251 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {5e0c78f3-74d8-4c83-a80c-66cb99cd543f} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 3840 1e89f158 tab
                        3⤵
                          PID:1744
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.7.1328626641\1417717738" -childID 6 -isForBrowser -prefsHandle 4036 -prefMapHandle 4040 -prefsLen 26251 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {33e9d3fc-ee87-4c58-a6a3-0dc0826c243d} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 4024 1e89e258 tab
                          3⤵
                            PID:832
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.8.1695784199\188342298" -childID 7 -isForBrowser -prefsHandle 4404 -prefMapHandle 4376 -prefsLen 26251 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {1791d1f7-839d-42f1-9bdb-529f734aa32d} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 4416 20dc1d58 tab
                            3⤵
                              PID:2928
                            • C:\Program Files\Mozilla Firefox\firefox.exe
                              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2640.9.639036362\992154674" -childID 8 -isForBrowser -prefsHandle 3804 -prefMapHandle 1112 -prefsLen 26691 -prefMapSize 233444 -jsInitHandle 860 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f8bad59e-1d66-45f6-8c70-5ff60d928714} 2640 "\\.\pipe\gecko-crash-server-pipe.2640" 3260 103fad58 tab
                              3⤵
                                PID:2140
                          • C:\Program Files\7-Zip\7zG.exe
                            "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\Brain.A\" -ad -an -ai#7zMap31607:76:7zEvent17981
                            1⤵
                            • Suspicious behavior: GetForegroundWindowSpam
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of FindShellTrayWindow
                            PID:1420
                          • C:\Windows\system32\NOTEPAD.EXE
                            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\Brain.A\Brain.A.txt
                            1⤵
                            • Opens file in notepad (likely ransom note)
                            PID:1164

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\gdoevwuq.default-release\cache2\doomed\29957

                            Filesize

                            9KB

                            MD5

                            91a88451fc90b809eeb147442e69986e

                            SHA1

                            910db1b527451ad0ebd7f39d30bfde2cfc10bd4a

                            SHA256

                            580ccc6e8a64da6c3f9c16e504b23b44bb4461cc310eb4ebfe3cc48019c8b191

                            SHA512

                            11970038ff8c4a5a042ca170b33e4a9f73eca0e0112eec7d7c0494c8dcbad5fbb6f5bd6e5763a95009435b4da3f38b70418696daac152afe3117989cbecac6e2

                          • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\gdoevwuq.default-release\jumpListCache\+9IfQtkETCVqkhH9y4NV8g==.ico

                            Filesize

                            25KB

                            MD5

                            6b120367fa9e50d6f91f30601ee58bb3

                            SHA1

                            9a32726e2496f78ef54f91954836b31b9a0faa50

                            SHA256

                            92c62d192e956e966fd01a0c1f721d241b9b6f256b308a2be06187a7b925f9e0

                            SHA512

                            c8d55a2c10a2ef484dedded911b8f3c2f5ecb996be6f6f425c5bd4b4f53eb620a2baccd48bac1915a81da9a792971d95ff36c3f216075d93e5fd7a462ecd784f

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

                            Filesize

                            2KB

                            MD5

                            ffc652ab8908bffd7955f1c2610f03c3

                            SHA1

                            403b44fc0a5b92ec37fd97f9de91f240dca88cbf

                            SHA256

                            52e0e257f7e7321c7df4c5b5d0d3972cebc294fab3250bc322f6e55685c201aa

                            SHA512

                            eb83e8eb79ed9e593aed14479b027791be0b6ddb79735ebf656c1a8db78c07f502a56ccc750b6605e910ae4289c4e89d8136c6e6f8345a254fc8ac5474d0660b

                          • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\gdoevwuq.default-release\datareporting\glean\pending_pings\24a771b3-a9a0-4853-b98e-db6acd80bc8c

                            Filesize

                            855B

                            MD5

                            04f599a3d76589e4dd52cb7f30ecdf91

                            SHA1

                            22c65a8f57ff765243ffdaaf27055c8987f34be4

                            SHA256

                            9cd6efd1c1ecd535a47fbe9dec63067410baad1661a25aca76d327be7d722fba

                            SHA512

                            6e302d88d854efc83e9e04007b5e9dd941ccca8ece47d6c9e87c1b0c7d11dff7e7e7e7b70a6a33c385bacd9032f4a45c810e259a354c34a552353372e269ad2b

                          • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\gdoevwuq.default-release\datareporting\glean\pending_pings\99b2318a-695a-4582-a33b-c3d04c5fe8e9

                            Filesize

                            933B

                            MD5

                            6bbbc8bd5d4f53d42dd012445d9b2a50

                            SHA1

                            a545ebd9b370e67f92e25af0ad2f1fbd80c15dc4

                            SHA256

                            5acc04f936f0bc5a12796d0eedacd3b0d158bf2193dc00ba7817eb8681d15844

                            SHA512

                            d07d2c9d80735b820b5c8f9ddb7e8ab9337c167550763f9e012297cacec835a8ef987dd3a7a54288bbd2d43345738cb42c8288666ea774434e0149a8e8e0169e

                          • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\gdoevwuq.default-release\datareporting\glean\pending_pings\a9c15d5e-e130-4a43-b630-551a679edc68

                            Filesize

                            12KB

                            MD5

                            a6324b03df046ca6a3ff95e6eef69f6e

                            SHA1

                            1d772fc50c95b8d732e59eb0de3db0219f0f18c7

                            SHA256

                            203c84a538c78de6d7689ac4e59dff2368075837c8ecc3d763e0210820af4d75

                            SHA512

                            ba71cce6f687ec9e96feb1e9bbf3c1dc8d14d1bd792bf2cbc46fe14a4658c81bb7dfd2b29530328e576eef8a4af7b7a17cb0846ca0f840e9b3079c55052fc4b8

                          • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\gdoevwuq.default-release\datareporting\glean\pending_pings\ddd59360-5fca-42ac-a111-ebad5aac9a73

                            Filesize

                            745B

                            MD5

                            c15bd7f4c3be2ba0447678bed8b7da55

                            SHA1

                            8d1dba9d2db9dd842751d25cd731b746aaa46421

                            SHA256

                            e8c2fd03ded6be3dee16022018182c37e57f6edc439afdbed9918cae2bdd7fb0

                            SHA512

                            4e89b261b30616f7249cc473382f9653f00d1f91ce270399bdfc0375081c96b52c1f0ad8298db3d961a96f550440b564c67e9e3360adbcd0e2ebde319d4e80c9

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

                            Filesize

                            6KB

                            MD5

                            8c69149845eb0ba2b2843534b79d39f3

                            SHA1

                            0f38feeffa5cea068518701732f9d7446fa26f70

                            SHA256

                            1376066915b45bb6abecfff36f83b48f2ab2d38baa8bd69ddab782a7169ced22

                            SHA512

                            7836039bb732f8a0737c814f91a7297b8a052e1d4c17c2367d6323a4e4e9d0fc6b93de2470d35ddacc313bbea0e3080fca045012110b923664ff827f8a8a3e80

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

                            Filesize

                            6KB

                            MD5

                            90bf6d6c9170febc2470af74be59662b

                            SHA1

                            11b5880597f41fed6bfae92fadf01b2487e6c542

                            SHA256

                            c8cd211ad47ea22336a013d4f6e141ab4fc5b9f919cdc9f014e8d0cf2286f742

                            SHA512

                            ecb49e9965474af258bd3dfe6aefe73a6e1662f8098843ce548342f3b4e0cf5de5bca7f5b760f5f201134b70ba9cc887df21423e0d4ed35b12c56dd94cfe568e

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

                            Filesize

                            4KB

                            MD5

                            3e5f514e0631dfcb2338ef0367aee532

                            SHA1

                            4db765ed87cb5ae30cdbaa3e406b4270522f0e7b

                            SHA256

                            6e6411fe19b18ff4d7e7eb68a57812b3a1db4a8f73fe1a97eff4fc0aab80135f

                            SHA512

                            30d83697c0fcfadf6e450ffd12d2dbb16697a2f8b8a9907188cc8a629e970b9898e19c49ae3194d44fab70442d5aeb95a1333c0c0a27e895fa0228234019d186

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

                            Filesize

                            4KB

                            MD5

                            d6ac56cffd06b4f642aeea5cd2fcd5d3

                            SHA1

                            b5ac55ed976626373ed4fd9f99dbbc4af577e157

                            SHA256

                            61dd7cbe624ddd2251449c71e2aa6ae8b883464aed93fda1b9961e6728a57e1c

                            SHA512

                            2b633f2d4bd29cbec8331426e43a78a9945bd072ac2d895c913e8ddbf77445058ec9b9fd6af394595cd1262bb8700e88db5af16bb8169eae77f440dae4d90674

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

                            Filesize

                            6KB

                            MD5

                            05791de0271a2510ec5aeb5ca5323f86

                            SHA1

                            31452ad531638883952fd9640793204c356144a3

                            SHA256

                            2c782a82df9652287b9ea64ddc3d7ba91259dc5ffed6ad3138a6c98450db703b

                            SHA512

                            da81ed9ad3a1e13d6b5df2bef07bd13b5019b875bfea22b0c4ef9ca184538161265a3889d740756bd62aab74c4fb5df42bd9814ebd0234129e7ea0e139004315

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

                            Filesize

                            3KB

                            MD5

                            b32be6e0425d21325cfaae263f88d94b

                            SHA1

                            7161b68c18910cd9f5147b3cea6c98ae0351bae6

                            SHA256

                            8c172dfca7dd387509e46f8b6e7f8129976a7edb28f217747c67fad06d0bbff6

                            SHA512

                            c76d7a8468187aa6b2deae284bb5e827aeccf900d58a6261c7e46f347726503e1ebf67ea7f3a8b7677643e77385565a969452591d6f9c9d3cda6d5b26b0d7165

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

                            Filesize

                            4KB

                            MD5

                            de052c3a6e73bbccce972b9046e37f83

                            SHA1

                            c896aacbd4775ab265afe9fc38d80ed85b3d5fbc

                            SHA256

                            80913c98cccede95d16565853cc68a0924f519554cac192d7db4b25fe93df024

                            SHA512

                            7bf03dad1cc77800f4711504f4b2a2c881c8bd0c1414725b1b66c540f84d2baf0218c3ec2dd977d90f046f5e750ec0d696cc005126cdd46dcd6dd6c76a186288

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

                            Filesize

                            4KB

                            MD5

                            f858ad801c528d28dca27447d85e2423

                            SHA1

                            86da51a772da5ffd6cc794d2bda7fd4af68f4991

                            SHA256

                            b1c5bda5437e04cb1087bad3fede78de575c4fce0bbbde445e6af44c8b87f11b

                            SHA512

                            852c8cadeac13fd4749c16fb2f0366be3cf621bf043731add10d35f7c61914f9c7f3b44f005abdf2cfb04bd83c94a80be2303aef4219af35c82b2a88116d36b1

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

                            Filesize

                            6KB

                            MD5

                            b84a8d6d9c0593325625dcc6f0c0bc63

                            SHA1

                            6b647c08b25f7ca96c1b900782075eafcaac97e7

                            SHA256

                            479c709e9a8c1240cddb3f2d74ea7e2292cb2dd2bc96a31a2a3ecf5a3b39d275

                            SHA512

                            472cb2c085ecf12f18c864522ce836dad8ffc4e2eafb8ac2720954f02ac55957d2f81bdf655ca6cd728d28cc2bdff6c142dce707869be119a94e5ea33b074a68

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

                            Filesize

                            184KB

                            MD5

                            84915a4201d8a8e0564944a76ad800b0

                            SHA1

                            898b5b1061e0ab66aaf128107f8ebe071214eae1

                            SHA256

                            8fa1acacc57ac6b358b867004a18c6e99ac57069dd50b618689c3c2304ca1a95

                            SHA512

                            fbc253aefd6b8977297a5823e6736b68c64b45f0c9c0f4c344d23977ee31e6d798b197ceb4ed2d4dbe7392dc9459b5a8eb3fd20b4d87217f32b755c4afd03a8d

                          • C:\Users\Admin\Desktop\Brain.A\Brain.A.txt

                            Filesize

                            2KB

                            MD5

                            630a6d7268a23c00ab9af46b5e57c331

                            SHA1

                            4395a1070b3c886ba4606ca8748ad3cdb39b22dd

                            SHA256

                            7a6a41b23cdab9d3128e7f61b78fbd7b396c2739f3168454f6bfde8068283749

                            SHA512

                            1367dc1a77f372dbf979ac77f2cbea65a036f169e17a9bc83cd7e1ef44058328428649595205c09ecb392f1c95ee34749b476515d3f98b628c10a7ca24755b6b

                          • C:\Users\Admin\Downloads\SLCVzl8V.zip.part

                            Filesize

                            59KB

                            MD5

                            c56f135fdaff397ad207f61b4f2042fe

                            SHA1

                            03f1e073761af071d373f025359da84ec39ada19

                            SHA256

                            d636ffa6537b80d475731d6878b014a44a390bddc383eea5263a1dad4765f0d2

                            SHA512

                            d0cd72274ab23f5369ef9e0bd2f22a097952c3060fdd86991e1ba30cac32c87d053a6703ecf9bcc30e07ffb41efe2e9ccb5b28be987aaf31e629587e1fb85ec2