Analysis

  • max time kernel
    126s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 11:56

General

  • Target
    ec80a54e5532f2e9ebd5bf9dc533a03637e36b2678680fe11404fc70c1aa40da.exe
  • Size 219KB
  • Sample240612-n355baxejl
  • SHA256 ec80a54e5532f2e9ebd5bf9dc533a03637e36b2678680fe11404fc70c1aa40da
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks for any installed AV software in registry 1 TTPs 6 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 4 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Checks processor information in registry 2 TTPs 15 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec80a54e5532f2e9ebd5bf9dc533a03637e36b2678680fe11404fc70c1aa40da.exe
    "C:\Users\Admin\AppData\Local\Temp\ec80a54e5532f2e9ebd5bf9dc533a03637e36b2678680fe11404fc70c1aa40da.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of WriteProcessMemory
    PID:3836
    • C:\Windows\Temp\asw.b2b26fe5f5e2ae86\avg_antivirus_free_setup_x64.exe
      "C:\Windows\Temp\asw.b2b26fe5f5e2ae86\avg_antivirus_free_setup_x64.exe" /cookie:mmm_bav_003_999_a7f_m:dlid_FREEGSR-HP /ga_clientid:392e00f2-a394-47f2-96c0-5e17d5c7aed4 /edat_dir:C:\Windows\Temp\asw.b2b26fe5f5e2ae86
      2⤵
      • Executes dropped EXE
      • Checks for any installed AV software in registry
      • Writes to the Master Boot Record (MBR)
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\Temp\asw.5c3f8b203c0cc8be\instup.exe
        "C:\Windows\Temp\asw.5c3f8b203c0cc8be\instup.exe" /sfx:lite /sfxstorage:C:\Windows\Temp\asw.5c3f8b203c0cc8be /edition:15 /prod:ais /stub_context:fb4bcc41-a369-4312-93e1-07e19573d456:9994552 /guid:0df12edd-e28c-48e0-991c-d98cd66977fa /ga_clientid:392e00f2-a394-47f2-96c0-5e17d5c7aed4 /cookie:mmm_bav_003_999_a7f_m:dlid_FREEGSR-HP /ga_clientid:392e00f2-a394-47f2-96c0-5e17d5c7aed4 /edat_dir:C:\Windows\Temp\asw.b2b26fe5f5e2ae86
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks for any installed AV software in registry
        • Writes to the Master Boot Record (MBR)
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2880
        • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\instup.exe
          "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\instup.exe" /sfx /sfxstorage:C:\Windows\Temp\asw.5c3f8b203c0cc8be /edition:15 /prod:ais /stub_context:fb4bcc41-a369-4312-93e1-07e19573d456:9994552 /guid:0df12edd-e28c-48e0-991c-d98cd66977fa /ga_clientid:392e00f2-a394-47f2-96c0-5e17d5c7aed4 /cookie:mmm_bav_003_999_a7f_m:dlid_FREEGSR-HP /edat_dir:C:\Windows\Temp\asw.b2b26fe5f5e2ae86 /online_installer
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks for any installed AV software in registry
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1448
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" -checkGToolbar -elevated
            5⤵
            • Executes dropped EXE
            PID:2996
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" /check_secure_browser
            5⤵
            • Executes dropped EXE
            PID:2020
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" -checkChrome -elevated
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2420
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" -checkChromeReactivation -elevated -bc=AWFC
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3952
            • C:\Users\Public\Documents\aswOfferTool.exe
              "C:\Users\Public\Documents\aswOfferTool.exe" -checkChromeReactivation -bc=AWFC
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:2380
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" -checkChromeReactivation -elevated -bc=AWFC
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:4660
            • C:\Users\Public\Documents\aswOfferTool.exe
              "C:\Users\Public\Documents\aswOfferTool.exe" -checkChromeReactivation -bc=AWFC
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:640
          • C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe
            "C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\aswOfferTool.exe" -checkChrome -elevated
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2696
  • 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 --field-trial-handle=2736,i,5229431749694857451,16836185654682871752,262144 --variations-seed-version --mojo-platform-channel-handle=1308 /prefetch:8
    1⤵
      PID:5104

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          Setup.log

          • Path C:\ProgramData\AVG\Persistent Data\Antivirus\Logs\Setup.log
          • Size 26KB
          • SHA256 d6072cbacef3ff40b312b2b99c8f7e118629942c6a4c38ad6cc1d4f8bbf7ee78
          • MD5 SHA1 SHA512 SSDEEP

          Setup.log

          • Path C:\ProgramData\AVG\Persistent Data\Antivirus\Logs\Setup.log
          • Size 1KB
          • SHA256 bedc210addd87c9dc1083614386512df05b50f6f1f93462e88fe1068a9d995a8
          • MD5 SHA1 SHA512

          event_manager.log

          • Path C:\ProgramData\AVG\Persistent Data\Antivirus\Logs\event_manager.log
          • Size 281B
          • SHA256 b86b364cfeb4dc9ad5d0dc55d89dab1ee0c511c0f93414b17901df5359f6e397
          • MD5 SHA1 SHA512

          HTMLayout.dll

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\HTMLayout.dll
          • Size 4.0MB
          • SHA256 0ffd67c501dd1778c35830465f07f2390e318a485e0b22e437404b0a9d4b5ad2
          • MD5 SHA1 SHA512 SSDEEP

          Instup.dll

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\Instup.dll
          • Size 18.1MB
          • SHA256 67721cd04b1866888a97c1027e6d6ca5805b08124b724a31ff9931f9f3e28b2a
          • MD5 SHA1 SHA512 SSDEEP

          Instup.exe

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\Instup.exe
          • Size 3.6MB
          • SHA256 068bd9cd5dc944ff9030bdf3e31638408314e54861b93cdaf8c3c905a8005cac
          • MD5 SHA1 SHA512 SSDEEP

          asw7cf0f2e1cd85eb2d.tmp

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\asw7cf0f2e1cd85eb2d.tmp
          • Size 19KB
          • SHA256 7fd358eddcef6756f315fec2bfad52286402f7194104fcfd3dcec7d588597025
          • MD5 SHA1 SHA512 SSDEEP

          gcapi.dll

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\New_18050d08\gcapi.dll
          • Size 867KB
          • SHA256 e0d08b9da7e502ad8c75f8be52e9a08a6bcd0c5f98d360704173be33777e4905
          • MD5 SHA1 SHA512 SSDEEP

          asw2efc970cff36ed9e.ini

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\asw2efc970cff36ed9e.ini
          • Size 1KB
          • SHA256 71c1997aebc9f5cfcb5eef151442e72a74664419c6aa67e8db1bc913461194ac
          • MD5 SHA1 SHA512

          aswa340aa5190bb3985.ini

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\aswa340aa5190bb3985.ini
          • Size 579B
          • SHA256 766ef8ae49828d48be5ef8e3766b8a18d7007ebdc81af387c5494f12ab647922
          • MD5 SHA1 SHA512

          avbugreport_x64_ais-d08.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\avbugreport_x64_ais-d08.vpx
          • Size 4.7MB
          • SHA256 b1819bf1551be44e0f293f6b6ead1841aacb63ca3a9d90f1a31c9cb52f648c6e
          • MD5 SHA1 SHA512 SSDEEP

          avdump_x64_ais-d08.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\avdump_x64_ais-d08.vpx
          • Size 3.3MB
          • SHA256 55ebd9dc7c26877a51e11722d3ea17f1afdf39a30aeda07ef6804659c34e54c4
          • MD5 SHA1 SHA512 SSDEEP

          config.def

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\config.def
          • Size 18KB
          • SHA256 b64d1d23aef5cdeeb2279216a00c931b201bce90407c9cbff3a7ef2742873878
          • MD5 SHA1 SHA512 SSDEEP

          config.def

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\config.def
          • Size 18KB
          • SHA256 2ad35455993e3ac3974998b6bcf773ca04ff9af3a278cc703ee6e39e66b7e19a
          • MD5 SHA1 SHA512 SSDEEP

          config.def

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\config.def
          • Size 24KB
          • SHA256 83d74d9847c39cd432d06092eb32f7a15bfadd9dbba9c6a857e8cd37180f5b99
          • MD5 SHA1 SHA512 SSDEEP

          config.ini

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\config.ini
          • Size 676B
          • SHA256 938f66d4302b59d2987fdbcae028bda9fd8a4388dee0e9e642a7981cb3cc7c19
          • MD5 SHA1 SHA512

          offertool_x64_ais-d08.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\offertool_x64_ais-d08.vpx
          • Size 2.3MB
          • SHA256 0b7c3caa31928131ce0e1ca570aa72e20a98dda13e4ca0c59f31cc677d8e8c6e
          • MD5 SHA1 SHA512 SSDEEP

          part-jrog2-79.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\part-jrog2-79.vpx
          • Size 211B
          • SHA256 ba1333f2355a7660001410efc8ae3e0b49d1600806272050883980889d6e250b
          • MD5 SHA1 SHA512

          part-prg_ais-18050d08.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\part-prg_ais-18050d08.vpx
          • Size 73KB
          • SHA256 4b01a68078d7e1af1c0197baddbbb1ef4d3cbf13f71e8b9df766f88b4e6d8025
          • MD5 SHA1 SHA512 SSDEEP

          part-setup_ais-18050d08.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\part-setup_ais-18050d08.vpx
          • Size 4KB
          • SHA256 675bd92f752a51bd7d9797895252b3130095a06d7d5db8f221ab6251735ead8d
          • MD5 SHA1 SHA512 SSDEEP

          part-vps_windows-24061199.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\part-vps_windows-24061199.vpx
          • Size 7KB
          • SHA256 60cbcb938b4d06ec162bb2379fe94f0f22cac8927ea5740cb52260809c5ef50a
          • MD5 SHA1 SHA512 SSDEEP

          prod-pgm.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\prod-pgm.vpx
          • Size 572B
          • SHA256 846f9f2f624c8a1f001a4bd7c7ca3158c8c79cb11fa6d474cfdf8e48d0238a3f
          • MD5 SHA1 SHA512

          prod-vps.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\prod-vps.vpx
          • Size 343B
          • SHA256 52e06087d9c0968150bc5d3b06895e3ab9b69aebea20e0328434b703aa242099
          • MD5 SHA1 SHA512

          prod-vps.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\prod-vps.vpx
          • Size 340B
          • SHA256 b5992d7f4f9cfbd8c06d0b40110f296e70a7b804e581553d120d22146efdfc92
          • MD5 SHA1 SHA512

          servers.def

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\servers.def
          • Size 27KB
          • SHA256 1fc616dd97e72451eda1324979f65df6af823aaaee1c83e5c2c3f3308cd26a67
          • MD5 SHA1 SHA512 SSDEEP

          servers.def.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\servers.def.vpx
          • Size 1KB
          • SHA256 e1b5e5122457b19ad5175b0b372d6d0b55813503827ad1d84c26f23b8506a66d
          • MD5 SHA1 SHA512

          setup.def

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\setup.def
          • Size 38KB
          • SHA256 0b9aedce74468150c054d27649dad8f98109e537a581649be6668a13cd29e6a7
          • MD5 SHA1 SHA512 SSDEEP

          uat64.dll

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\uat64.dll
          • Size 29KB
          • SHA256 5a690ef46a5c889adbad580b773a6025040426ee11d3817927dd1e77698e8ece
          • MD5 SHA1 SHA512 SSDEEP

          uat64.vpx

          • Path C:\Windows\Temp\asw.5c3f8b203c0cc8be\uat64.vpx
          • Size 16KB
          • SHA256 bf60d1aa67abc73f927e1544ba8b66a79ec9143caedb15e1d94d023be6aba036
          • MD5 SHA1 SHA512 SSDEEP

          avg_antivirus_free_setup_x64.exe

          • Path C:\Windows\Temp\asw.b2b26fe5f5e2ae86\avg_antivirus_free_setup_x64.exe
          • Size 9.5MB
          • SHA256 47cee4d44e8fe27f3229fa751c11259227a00b605d6a42e2cb066f100a9049c3
          • MD5 SHA1 SHA512 SSDEEP

          ecoo.edat

          • Path C:\Windows\Temp\asw.b2b26fe5f5e2ae86\ecoo.edat
          • Size 37B
          • SHA256 928cc7649fe1d3acd42918fad923b05c49f9c199e267b41c6677333fe7bd9f90
          • MD5 SHA1 SHA512