Analysis

  • max time kernel
    66s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 21:20

General

  • Target

    43810.exe

  • Size

    34KB

  • MD5

    3325932fba61e0f8d19d87e3da22b075

  • SHA1

    a8d06733d83de73da64ae6f8bef39a6bbbd1e2ef

  • SHA256

    3933a6053d10ac2a6d87e7286adb069a4e8f8a8348166b5ddf9d70cff64162e9

  • SHA512

    577524bf80a266a9c7f360560be01560248b1aa5e50d1deb5a1df9383103b5889f2f726bb05a45e9529398c52f2d63c484b76770c3db0fa32d6e695fc88c8333

  • SSDEEP

    384:pxaXVqG28uymzhzUuHnOmYxLm9SCwvHixdTX2VR8pkFTBLTIZwYGDcvw9IkuisoW:HaXUzPi9wSC4C+V9FZ9jkOjh//kp5

Malware Config

Extracted

Family

xworm

Version

5.0

C2

cheflilou-43810.portmap.host:43810

Mutex

ib8OKYsBW5exmPhy

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43810.exe
    "C:\Users\Admin\AppData\Local\Temp\43810.exe"
    1⤵
    • Drops startup file
    • Suspicious use of AdjustPrivilegeToken
    PID:1780
    • C:\Windows\system32\taskkill.exe
      taskkill /F /IM explorer.exe
      2⤵
      • Kills process with taskkill
      PID:1864
  • C:\Windows\system32\mspaint.exe
    "C:\Windows\system32\mspaint.exe" /p "C:\Users\Admin\Downloads\BlockUnblock.rle"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    PID:1640
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1684
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7feeecf9758,0x7feeecf9768,0x7feeecf9778
      2⤵
        PID:1644
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1116 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:2
        2⤵
          PID:1260
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1524 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:8
          2⤵
            PID:2300
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1628 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:8
            2⤵
              PID:2044
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2328 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:1
              2⤵
                PID:1364
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2348 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:1
                2⤵
                  PID:1520
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1592 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:2
                  2⤵
                    PID:2352
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1464 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:1
                    2⤵
                      PID:1716
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3692 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:8
                      2⤵
                        PID:2484
                      • C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe
                        "C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe" --reenable-autoupdates --system-level
                        2⤵
                          PID:2096
                          • C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe
                            "C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0x154,0x158,0x15c,0x128,0x160,0x13fc87688,0x13fc87698,0x13fc876a8
                            3⤵
                              PID:572
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=3864 --field-trial-handle=1320,i,16123489664540193929,7387532731451762074,131072 /prefetch:1
                            2⤵
                              PID:2164
                          • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                            1⤵
                              PID:2948

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00000a

                              Filesize

                              215KB

                              MD5

                              2be38925751dc3580e84c3af3a87f98d

                              SHA1

                              8a390d24e6588bef5da1d3db713784c11ca58921

                              SHA256

                              1412046f2516b688d644ff26b6c7ef2275b6c8f132eb809bd32e118208a4ec1b

                              SHA512

                              1341ffc84f16c1247eb0e9baacd26a70c6b9ee904bc2861e55b092263613c0f09072efd174b3e649a347ef3192ae92d7807cc4f5782f8fd07389703d75c4c4e2

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

                              Filesize

                              432B

                              MD5

                              06e80601948463c7bec4f3b93e47e6a3

                              SHA1

                              791fa3fa2ff11d5a7fd85a85fa69a279a1d2ce98

                              SHA256

                              042d78af14c180699448c70771771f92b494e1aa55d44d655f79665b509901d3

                              SHA512

                              513df97673ce800cf8cd3fd7266508ca5e19c5c7a847a19ceb97c33a6f0b897784e80c3526aeba9ee910bdd52bbd01710b095633244749d6c8aea492dd1f01ff

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                              Filesize

                              264KB

                              MD5

                              f50f89a0a91564d0b8a211f8921aa7de

                              SHA1

                              112403a17dd69d5b9018b8cede023cb3b54eab7d

                              SHA256

                              b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                              SHA512

                              bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                              Filesize

                              363B

                              MD5

                              52a3fc28a26a524c86e0131868f4f21f

                              SHA1

                              86ca9249d4d3babb27b8cd6d6f06e46987aee5b2

                              SHA256

                              085b1abcab028ac397bf8696b094879b6628265f13f2a27aab70da1fca58ccc1

                              SHA512

                              6febb5c64a32c131843671718fc89695b82f0ab624a30b9ec2f1c8a914f7bd13054aae49c65663324b46ed33511faf042cef36dc05d76bf255ebadc839fe60ac

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                              Filesize

                              6KB

                              MD5

                              ddb9128ce9f82b6e494a2afd337d03f1

                              SHA1

                              1136a6f6fc651de5e8d6d2c4123a211117f44eef

                              SHA256

                              f4f58d985e306e3da7343784eb90c4989d7569f15e2f2a0b9d49e0d671307b56

                              SHA512

                              c4cfec0ba483bc2d43f82a600a34de14f85a85b4c81bbf959602f32d2af5d150423eaefcfc012317e6ab876f3795f436a2264941618a301d1e78e111206ae556

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                              Filesize

                              6KB

                              MD5

                              a0a07994f2de3e7afcf4328671e36d2b

                              SHA1

                              506afda1faa0b74e0ff7235c2d0b2a96ad752097

                              SHA256

                              11f746520c8754eb73c8a11131400d58db78b43f4286920ad3121f9bdc20ebab

                              SHA512

                              e62cea2058f50e758770048b8f34c87c965d0818724f684cd49a65a911bf7392378c80a258586b946ed04edb768abad54ec79d0325c31fe187b84027eef5ae82

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

                              Filesize

                              16B

                              MD5

                              18e723571b00fb1694a3bad6c78e4054

                              SHA1

                              afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                              SHA256

                              8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                              SHA512

                              43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                            • memory/1640-8-0x000007FEEF6F0000-0x000007FEEF73C000-memory.dmp

                              Filesize

                              304KB

                            • memory/1640-10-0x000007FEEF6F0000-0x000007FEEF73C000-memory.dmp

                              Filesize

                              304KB

                            • memory/1640-9-0x0000000001EF0000-0x0000000001EF1000-memory.dmp

                              Filesize

                              4KB

                            • memory/1780-0-0x000007FEF57E3000-0x000007FEF57E4000-memory.dmp

                              Filesize

                              4KB

                            • memory/1780-153-0x0000000002190000-0x000000000219C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1780-7-0x000007FEF57E0000-0x000007FEF61CC000-memory.dmp

                              Filesize

                              9.9MB

                            • memory/1780-6-0x000007FEF57E0000-0x000007FEF61CC000-memory.dmp

                              Filesize

                              9.9MB

                            • memory/1780-179-0x000000001A7E0000-0x000000001A7EC000-memory.dmp

                              Filesize

                              48KB

                            • memory/1780-1-0x0000000000C70000-0x0000000000C7E000-memory.dmp

                              Filesize

                              56KB

                            • memory/1780-191-0x000000001A7F0000-0x000000001A7FA000-memory.dmp

                              Filesize

                              40KB

                            • memory/1780-192-0x000000001A8C0000-0x000000001A8CA000-memory.dmp

                              Filesize

                              40KB