Analysis

  • max time kernel
    52s
  • max time network
    55s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-03-2024 22:30

General

  • Target

    https://gofile.io/d/hes3BU

Malware Config

Extracted

Family

xworm

C2

147.185.221.18:31798

Attributes
  • Install_directory

    %AppData%

  • install_file

    winhost32.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Downloads MZ/PE file
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 12 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:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://gofile.io/d/hes3BU
    1⤵
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2052
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ff9ac2f3cb8,0x7ff9ac2f3cc8,0x7ff9ac2f3cd8
      2⤵
        PID:5032
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1956 /prefetch:2
        2⤵
          PID:1308
        • 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=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2384 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2588
        • 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=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2760 /prefetch:8
          2⤵
            PID:2424
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3140 /prefetch:1
            2⤵
              PID:1992
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3300 /prefetch:1
              2⤵
                PID:3988
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4524 /prefetch:1
                2⤵
                  PID:4088
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4144 /prefetch:1
                  2⤵
                    PID:4172
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5136 /prefetch:1
                    2⤵
                      PID:4304
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5584 /prefetch:8
                      2⤵
                        PID:2820
                      • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3516 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:248
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5896 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1116
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5916 /prefetch:1
                        2⤵
                          PID:2776
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5796 /prefetch:8
                          2⤵
                          • NTFS ADS
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5004
                        • C:\Users\Admin\Downloads\winhost32.exe
                          "C:\Users\Admin\Downloads\winhost32.exe"
                          2⤵
                          • Drops startup file
                          • Executes dropped EXE
                          • Adds Run key to start application
                          • Suspicious use of AdjustPrivilegeToken
                          PID:3984
                          • C:\Windows\System32\schtasks.exe
                            "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "winhost32" /tr "C:\Users\Admin\AppData\Roaming\winhost32.exe"
                            3⤵
                            • Creates scheduled task(s)
                            PID:2468
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1708 /prefetch:1
                          2⤵
                            PID:2668
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=18 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3692 /prefetch:1
                            2⤵
                              PID:3456
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3852 /prefetch:1
                              2⤵
                                PID:4872
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1948,15606699847552983275,482721351155387796,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=20 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4784 /prefetch:1
                                2⤵
                                  PID:536
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:640
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:1640

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

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

                                    Filesize

                                    152B

                                    MD5

                                    5c48e8b68231fb5b2d7f1188b930bc0e

                                    SHA1

                                    1822aef5da8fdd47626fb91afcf79a2be175a325

                                    SHA256

                                    c3b287c29eaa57166b2ab1ba9bd0aaced13cc2f946a04b8d708ac429187fe944

                                    SHA512

                                    2bd09b83e44e0104fbe080a8573690217dc9fbf7fd59ff25a1a9e9ebd2d87ac533f9b99350773d081a7e748b39657115a13e94538b153bceb13ecdfc4672a0f8

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

                                    Filesize

                                    152B

                                    MD5

                                    f2dc80f5403feb8461b7ffa09890d6a0

                                    SHA1

                                    d5b61e6d672e7e71571e0132e21cead181da8805

                                    SHA256

                                    eadeadba37eed18e5acba408d7e076270b00403fed372b77164577232232428a

                                    SHA512

                                    5e2119529b99b76be105c43714e4b9977ee2147172c1c44e92bd9b41fa7a66f55d4073c864aac668a912aff2898bd216fb38f2fe34ef65de69ad12965218caf5

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    288B

                                    MD5

                                    5ebca9516835687c412d9496d83a7584

                                    SHA1

                                    36d6ab408ee6714a00797a5c3732be2d5906044a

                                    SHA256

                                    38a8e4cece153c691b79b5b9b8dfb39e13c726420949261874e580ce330eed1b

                                    SHA512

                                    d95450a3c035994367c8ec43397987dc9f9c2d4d147a5850494ed390d80b5ec071719b9c9f2ef7cacec42abdea81411f31841816720a7a7ab641dd624c8f5458

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

                                    Filesize

                                    111B

                                    MD5

                                    285252a2f6327d41eab203dc2f402c67

                                    SHA1

                                    acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

                                    SHA256

                                    5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

                                    SHA512

                                    11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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

                                    Filesize

                                    5KB

                                    MD5

                                    2d6c05cc210f652f1cdc2dc4f475954c

                                    SHA1

                                    8b81cd9aba440fa5052b2f93637869a2b76ed54e

                                    SHA256

                                    94b9dd37e0ab19c2f2e6448f28f92fda92ac23b27ab2619f114b85696b856289

                                    SHA512

                                    0872f454a5e8bb02c8bf245a4a3031ae254202b577adf9eef5a86657c3d98853645759c7f894d672548b05101d67689b6ca21fa19ca824f47a1f66da26e38ca3

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

                                    Filesize

                                    6KB

                                    MD5

                                    8420bc4414b54361e9375248a4c2069c

                                    SHA1

                                    f36309504be353ccb8c57a4655daf3340ec8ddad

                                    SHA256

                                    e6bdc5df045fdc16984d30e0534cc3dc5b973d6976c11761161399995529243d

                                    SHA512

                                    2e166788f1907fab317877f4841431938fc70c1ab293ddb323dddbd40c998063d9acb6e8b9a28f09a81057c36303b8144eb5f9879f53b066c3ebcaf65576f1bf

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

                                    Filesize

                                    6KB

                                    MD5

                                    b1b392e3a264830dab2292cb3b45a9d3

                                    SHA1

                                    895fc339ed0809c91878e76d7204c6058208dc00

                                    SHA256

                                    68a60aa7e901652a305cdf748bde827938a895fe8a5bc91181ca6023d942ff77

                                    SHA512

                                    1b4962092d3c1f87644df94b1f879efeed7b2152a896145608353649f9e86e10b651548250e1eaa841a327dd37da052d0a1d6b19e71b15f768ba4a4376458be5

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

                                    Filesize

                                    16B

                                    MD5

                                    6752a1d65b201c13b62ea44016eb221f

                                    SHA1

                                    58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                    SHA256

                                    0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                    SHA512

                                    9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

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

                                    Filesize

                                    11KB

                                    MD5

                                    fe75e7284990483a2af73fd287dcf9c4

                                    SHA1

                                    503580ffd426c6ffa14a4cc8d353045bb182ba8f

                                    SHA256

                                    b0e10b594ed93f3998798ebafb4d0931e4c51a3736452c7dba8e276a33057094

                                    SHA512

                                    6e28c189fbd8aa2c0f2a14b2fcd886568fc9a3b5ea0e3cfa1db9edc20daf23b0a944b44aa52dfe2b374ef1d72d80f477475725ac2d1be3a7ad397852c1c5bede

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

                                    Filesize

                                    11KB

                                    MD5

                                    cd69217822f443ce9436753c4ade7974

                                    SHA1

                                    afe8f8c5b0537944a0f163ccdcf52292726915bd

                                    SHA256

                                    0ed77e5c632eea639f68894d2e1f4c97ab7892136aa6d0a075e2ce8a3ffe0794

                                    SHA512

                                    9a08d8ade82ae77de4baf56caf2bb51bbb00ecf15adc3d76405d487c06e1c497cf8f1c2e463ddf86548165b7b7a5bace98c58d4ceb6b61b1fa5cf6e0dfb72c44

                                  • C:\Users\Admin\Downloads\Unconfirmed 152439.crdownload

                                    Filesize

                                    72KB

                                    MD5

                                    e68093921d654ffa2ec636200de9c2e5

                                    SHA1

                                    2c07f12debd6080d8c4cb6de60163826879883f0

                                    SHA256

                                    605606979ff1a0b78608dfef0c8910b7b15794a0b1a5fee6554a8452f67a76a6

                                    SHA512

                                    94fc7d7ae245af222bac6084a2f8d7bb258f7819d308e739482039bea55a912c1f41cfb0d5107cba7fae6a703234b7223d8101dfdd9c0c932764d3894d139eac

                                  • C:\Users\Admin\Downloads\winhost32.exe:Zone.Identifier

                                    Filesize

                                    156B

                                    MD5

                                    1251691254c817a884f7e232cc60004e

                                    SHA1

                                    7acbe93e6a111e11be7bee31683b2b7f856e6bf3

                                    SHA256

                                    38cf4a762a4f731ffa8bcfb0a815bff3d7c2e6f7eb68682a3ebf2df2b52ce274

                                    SHA512

                                    517114a967f1b36b8736bae76ba95fa6688454f2a033cd44d8759664ec6667f81eaefac1a17a22ea30909e6fa5dfd3fcf42d70dbe9380825d594042bb8ac7c27

                                  • memory/3984-102-0x0000000000CF0000-0x0000000000D08000-memory.dmp

                                    Filesize

                                    96KB

                                  • memory/3984-103-0x00007FF998A60000-0x00007FF999522000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/3984-134-0x000000001B900000-0x000000001B910000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/3984-144-0x00007FF998A60000-0x00007FF999522000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/3984-160-0x000000001B900000-0x000000001B910000-memory.dmp

                                    Filesize

                                    64KB