Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2024, 13:19

General

  • Target

    Bootstrapper.exe

  • Size

    37KB

  • MD5

    92fd66073b9a4f83ee5257d4dfc611fb

  • SHA1

    87377414dd581082a1e5d26633f2aa9838d26062

  • SHA256

    cbbd4d987c1f2368de89953f3d2ab06a803806faaab1d116d6c72cf11a93cbb2

  • SHA512

    f0e24cac627234e2556e7ce1b1634c32f0b17380850e3d956d35d6f92d1489dcad2fdcb799abbdf0d8169dff0d9c3da7a5672bf84899481368ed6909d6b19c95

  • SSDEEP

    768:Ob3MDF3lFdS7IVW5mae2rM+rMRa8Nuvyt:Ob6F3lPSUVW5op+gRJNE

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\ProgramData\COM Surrogate.exe
      "C:\ProgramData\COM Surrogate.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\COM Surrogate.exe" "COM Surrogate.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4996
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM SecHealthUI.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2144
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefault2ced8d6ah0938h4eadh9e20h03a16e97a5e6
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x124,0x128,0x12c,0x100,0x130,0x7ff9d3fb46f8,0x7ff9d3fb4708,0x7ff9d3fb4718
      2⤵
        PID:4664
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2092,16765505084450961555,14326170387777941059,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2112 /prefetch:2
        2⤵
          PID:3240
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2092,16765505084450961555,14326170387777941059,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2188 /prefetch:3
          2⤵
            PID:3660
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2092,16765505084450961555,14326170387777941059,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2792 /prefetch:8
            2⤵
              PID:3196
          • C:\Windows\System32\CompPkgSrv.exe
            C:\Windows\System32\CompPkgSrv.exe -Embedding
            1⤵
              PID:5080
            • C:\Windows\System32\CompPkgSrv.exe
              C:\Windows\System32\CompPkgSrv.exe -Embedding
              1⤵
                PID:2896
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefaultc368d6c8hfca0h48d7hb51ah81b5b3f0ff33
                1⤵
                  PID:4620
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ff9d3fb46f8,0x7ff9d3fb4708,0x7ff9d3fb4718
                    2⤵
                      PID:612
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2172,18080746302708381929,13759850971118647756,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2188 /prefetch:2
                      2⤵
                        PID:3196
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2172,18080746302708381929,13759850971118647756,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
                        2⤵
                          PID:1700
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2172,18080746302708381929,13759850971118647756,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2876 /prefetch:8
                          2⤵
                            PID:4276

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • C:\ProgramData\COM Surrogate.exe

                          Filesize

                          37KB

                          MD5

                          92fd66073b9a4f83ee5257d4dfc611fb

                          SHA1

                          87377414dd581082a1e5d26633f2aa9838d26062

                          SHA256

                          cbbd4d987c1f2368de89953f3d2ab06a803806faaab1d116d6c72cf11a93cbb2

                          SHA512

                          f0e24cac627234e2556e7ce1b1634c32f0b17380850e3d956d35d6f92d1489dcad2fdcb799abbdf0d8169dff0d9c3da7a5672bf84899481368ed6909d6b19c95

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                          Filesize

                          152B

                          MD5

                          36988ca14952e1848e81a959880ea217

                          SHA1

                          a0482ef725657760502c2d1a5abe0bb37aebaadb

                          SHA256

                          d7e96088b37cec1bde202ae8ec2d2f3c3aafc368b6ebd91b3e2985846facf2e6

                          SHA512

                          d04b2f5afec92eb3d9f9cdc148a3eddd1b615e0dfb270566a7969576f50881d1f8572bccb8b9fd7993724bdfe36fc7633a33381d43e0b96c4e9bbd53fc010173

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                          Filesize

                          152B

                          MD5

                          fab8d8d865e33fe195732aa7dcb91c30

                          SHA1

                          2637e832f38acc70af3e511f5eba80fbd7461f2c

                          SHA256

                          1b034ffe38e534e2b7a21be7c1f207ff84a1d5f3893207d0b4bb1a509b4185ea

                          SHA512

                          39a3d43ef7e28fea2cb247a5d09576a4904a43680db8c32139f22a03d80f6ede98708a2452f3f82232b868501340f79c0b3f810f597bcaf5267c3ccfb1704b43

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                          Filesize

                          5KB

                          MD5

                          df21debfad4b25502d8701e7e1caf3a7

                          SHA1

                          18dfd85615e4e02f49a4a3da878d48c1675f4172

                          SHA256

                          964a5b57b32b7c844a7f1b0c3f1fcdefd95c4d4738641f6fdcec797079adc858

                          SHA512

                          252c595684b841b980853a10487431b5f26cbc62f73d39bd034949cc15a4611c57f55cf6f72b6001ab50b9006cea501053423ef92963947af51c73d7809c2cc2

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Site Characteristics Database\LOG

                          Filesize

                          347B

                          MD5

                          75b64337d1faa5121eba2ffc2dbc82ec

                          SHA1

                          44c574ad2874f4d5fb5540ff8bc1bf13bb532250

                          SHA256

                          188ee3d2254b21ba0fe8d9cb6457ee2d49257bbc3c2fce11183c8322f37c5575

                          SHA512

                          b48168e079a5c50820182d879168e75033a9c53e9c35163961c9b97176df57ed90058ca61bebdc3d7a5831eb8df811181cf5a8720c6e1d62333433f634126b22

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\LevelDB\LOG

                          Filesize

                          320B

                          MD5

                          88ab558f9d37f55da4140c37de0dac77

                          SHA1

                          96c0eb71896b5e6aa42d6556b6038724871b2960

                          SHA256

                          a7ab09f0956730a89a791fcbcc65a5e4701c567bfaa91eb93e28060c13937434

                          SHA512

                          cdc0a5cee7de505ad9d26c0dbae321e3a07c8221a52dc40fb7425bb60b856ef0d4fe668f29006f9ff3fa6ab56fa6ce2f0db191c5a587e48369f913dc5673dcc8

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Last Version

                          Filesize

                          11B

                          MD5

                          838a7b32aefb618130392bc7d006aa2e

                          SHA1

                          5159e0f18c9e68f0e75e2239875aa994847b8290

                          SHA256

                          ac3dd2221d90b09b795f1f72e72e4860342a4508fe336c4b822476eb25a55eaa

                          SHA512

                          9e350f0565cc726f66146838f9cebaaa38dd01892ffab9a45fe4f72e5be5459c0442e99107293a7c6f2412c71f668242c5e5a502124bc57cbf3b6ad8940cb3e9

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                          Filesize

                          8KB

                          MD5

                          a8660b644b405869104540dcd262c2d7

                          SHA1

                          6676c488bd300a34109be57988cc2914c7ac8e8a

                          SHA256

                          9b95e970a54d189ebaf5535ec304a56973108f3a0b57d28c2145b9531e6c8c93

                          SHA512

                          97841f4d78605baa0a35be33f4ebb65bbdc959c6525575af1142db8748a64e7d8c8dd816c89c2572313da3b6ab60d70b9f6d2b54b30478fa93978bbfe5d5158a

                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\ShaderCache\GPUCache\data_1

                          Filesize

                          264KB

                          MD5

                          f50f89a0a91564d0b8a211f8921aa7de

                          SHA1

                          112403a17dd69d5b9018b8cede023cb3b54eab7d

                          SHA256

                          b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                          SHA512

                          bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                        • memory/372-13-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB

                        • memory/372-1-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB

                        • memory/372-0-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

                          Filesize

                          4KB

                        • memory/372-2-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB

                        • memory/1836-24-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB

                        • memory/1836-14-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB

                        • memory/1836-12-0x0000000074BE0000-0x0000000075191000-memory.dmp

                          Filesize

                          5.7MB