Analysis

  • max time kernel
    153s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2023 14:12

General

  • Target

    qbittorrent_4.5.5_x64_setup.exe

  • Size

    31.5MB

  • MD5

    a1e3d62bb16c2fef5fba7d2899796239

  • SHA1

    841c7c16a30ca3a2ec77148b2fcd250ce9335830

  • SHA256

    a95a39a8701661fcd9eec6dbf78f8099be1edfa145fb7d43a0105ec82f97df8f

  • SHA512

    121401f7df8f4cd01ecc5205510ad4d824ca7208ddb69bb9a5e4678359e82005d76b20467662878975a739f41236edc8581f61279bae278dbb5c7206058def59

  • SSDEEP

    786432:rDRS7fOdUC+EQNLErJ5L8xPEP9vnzfrnfHo9ft03Pvy96VgQCGq7NBwq:rp1+EQNLkJO2pnvnfIfq3P6YCn7H

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Bazar/Team9 Loader payload 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 37 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 19 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\qbittorrent_4.5.5_x64_setup.exe
    "C:\Users\Admin\AppData\Local\Temp\qbittorrent_4.5.5_x64_setup.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Program Files\qBittorrent\qbittorrent.exe
      "C:\Program Files\qBittorrent\qbittorrent.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1400
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
      PID:1868

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • C:\Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • C:\Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • C:\Program Files\qBittorrent\qt.conf

      Filesize

      84B

      MD5

      af7f56a63958401da8bea1f5e419b2af

      SHA1

      f66ee8779ca6d570dea22fe34ef8600e5d3c5f38

      SHA256

      fdb8fa58a6ffc14771ca2b1ef6438061a6cba638594d76d9021b91e755d030d3

      SHA512

      02f70ca7f1291b25402989be74408eb82343ab500e15e4ac22fbc7162eb9230cd7061eaa7e34acf69962b57ed0827f51ceaf0fa63da3154b53469c7b7511d23d

    • C:\Users\Admin\AppData\Local\Temp\Cab66EF.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar6712.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\FindProcDLL.dll

      Filesize

      3KB

      MD5

      b4faf654de4284a89eaf7d073e4e1e63

      SHA1

      8efcfd1ca648e942cbffd27af429784b7fcf514b

      SHA256

      c0948b2ec36a69f82c08935fac4b212238b6792694f009b93b4bdb478c4f26e3

      SHA512

      eef31e332be859cf2a64c928bf3b96442f36fe51f1a372c5628264a0d4b2fc7b3e670323c8fb5ffa72db995b8924da2555198e7de7b4f549d9e0f9e6dbb6b388

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\LangDLL.dll

      Filesize

      5KB

      MD5

      68b287f4067ba013e34a1339afdb1ea8

      SHA1

      45ad585b3cc8e5a6af7b68f5d8269c97992130b3

      SHA256

      18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

      SHA512

      06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\System.dll

      Filesize

      12KB

      MD5

      cff85c549d536f651d4fb8387f1976f2

      SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

      SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

      SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\UAC.dll

      Filesize

      14KB

      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\modern-wizard.bmp

      Filesize

      25KB

      MD5

      cbe40fd2b1ec96daedc65da172d90022

      SHA1

      366c216220aa4329dff6c485fd0e9b0f4f0a7944

      SHA256

      3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2

      SHA512

      62990cb16e37b6b4eff6ab03571c3a82dcaa21a1d393c3cb01d81f62287777fb0b4b27f8852b5fa71bc975feab5baa486d33f2c58660210e115de7e2bd34ea63

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      6c3f8c94d0727894d706940a8a980543

      SHA1

      0d1bcad901be377f38d579aafc0c41c0ef8dcefd

      SHA256

      56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2

      SHA512

      2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355

    • C:\Users\Admin\AppData\Local\Temp\nst6B43.tmp\nsisFirewallW.dll

      Filesize

      8KB

      MD5

      f5bf81a102de52a4add21b8a367e54e0

      SHA1

      cf1e76ffe4a3ecd4dad453112afd33624f16751c

      SHA256

      53be5716ad80945cb99681d5dbda60492f5dfb206fbfdb776b769b3eeb18d2c2

      SHA512

      6e280a75f706474ad31b2ce770fa34f54cb598528fac4477c466200a608b79c0f9b84011545595d9ba94331ad08e2f51bd42de91f92379db27686a28ba351256

    • C:\Users\Admin\AppData\Roaming\qBittorrent\watched_folders.json

      Filesize

      4B

      MD5

      5b76b0eef9af8a2300673e0553f609f9

      SHA1

      0b56d40c0630a74abec5398e01c6cd83263feddc

      SHA256

      d914176fd50bd7f565700006a31aa97b79d3ad17cee20c8e5ff2061d5cb74817

      SHA512

      cf06a50de1bf63b7052c19ad53766fa0d99a4d88db76a7cbc672e33276e3d423e4c5f5cb4a8ae188c5c0e17d93bb740eaab6f25753f0d26501c5f84aeded075d

    • \Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • \Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • \Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • \Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • \Program Files\qBittorrent\qbittorrent.exe

      Filesize

      28.6MB

      MD5

      eec321e889eadd13f2f398cb42c31e8c

      SHA1

      43f4a009554c22528ceb14b37cdc1f795a55876a

      SHA256

      3249a461c69458830faaa3bcbf138e1de9a882f381a8b44067475066f1fa6a77

      SHA512

      61303b82f9eec4e7fa9020835b4def4c8febe5636323ff89d2a56ca4cee788752cad4e40ba7b00b9547e4aa9e56aed992bf4d4bb3b6b11e0b33590d1b12b0811

    • \Program Files\qBittorrent\uninst.exe

      Filesize

      140KB

      MD5

      b6242ecb9f7c7d737c29d7e4661eebd6

      SHA1

      9761d2f82f9acaaabc17e4b30afcfb1030b06dde

      SHA256

      39f2b9371e27cc177ce332a416452c6fa85e777a3bbb51c08d5b22a2f9541900

      SHA512

      5100d186e6489795c9cb6497fb453d080cada9aa97f6587d21b82383eb8b9407853e9369fb586587962f9e5d1351e00fd1792ee631596de46bd8095148407657

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\FindProcDLL.dll

      Filesize

      3KB

      MD5

      b4faf654de4284a89eaf7d073e4e1e63

      SHA1

      8efcfd1ca648e942cbffd27af429784b7fcf514b

      SHA256

      c0948b2ec36a69f82c08935fac4b212238b6792694f009b93b4bdb478c4f26e3

      SHA512

      eef31e332be859cf2a64c928bf3b96442f36fe51f1a372c5628264a0d4b2fc7b3e670323c8fb5ffa72db995b8924da2555198e7de7b4f549d9e0f9e6dbb6b388

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\LangDLL.dll

      Filesize

      5KB

      MD5

      68b287f4067ba013e34a1339afdb1ea8

      SHA1

      45ad585b3cc8e5a6af7b68f5d8269c97992130b3

      SHA256

      18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

      SHA512

      06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\System.dll

      Filesize

      12KB

      MD5

      cff85c549d536f651d4fb8387f1976f2

      SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

      SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

      SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\UAC.dll

      Filesize

      14KB

      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      6c3f8c94d0727894d706940a8a980543

      SHA1

      0d1bcad901be377f38d579aafc0c41c0ef8dcefd

      SHA256

      56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2

      SHA512

      2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355

    • \Users\Admin\AppData\Local\Temp\nst6B43.tmp\nsisFirewallW.dll

      Filesize

      8KB

      MD5

      f5bf81a102de52a4add21b8a367e54e0

      SHA1

      cf1e76ffe4a3ecd4dad453112afd33624f16751c

      SHA256

      53be5716ad80945cb99681d5dbda60492f5dfb206fbfdb776b769b3eeb18d2c2

      SHA512

      6e280a75f706474ad31b2ce770fa34f54cb598528fac4477c466200a608b79c0f9b84011545595d9ba94331ad08e2f51bd42de91f92379db27686a28ba351256

    • memory/1400-143-0x0000000000320000-0x000000000032A000-memory.dmp

      Filesize

      40KB

    • memory/1400-141-0x0000000000310000-0x0000000000320000-memory.dmp

      Filesize

      64KB

    • memory/1400-153-0x0000000000320000-0x000000000032A000-memory.dmp

      Filesize

      40KB

    • memory/1400-154-0x0000000000320000-0x000000000032A000-memory.dmp

      Filesize

      40KB