Analysis

  • max time kernel
    1798s
  • max time network
    1800s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 20:59

General

  • Target

    XClient.exe

  • Size

    34KB

  • MD5

    c066e2162e9aa7dd672e4c20c1c8c9eb

  • SHA1

    20c061ca760ed127dd7c43ad5147064af4009d93

  • SHA256

    f2c139ededc6158ae672aa2ae484cbdf503517af131062ddd80a106dd7827557

  • SHA512

    aa75920ffef507b16ed23f7c4033374ec5b1ae56d9f6f32db6a0b632366a031280be4b6c2fed4ef895fda459899dccb62def861ffb90d287a23112a9d56a4adf

  • SSDEEP

    384:PxXv9qZ/QXokXcjlcTB+Gx//wD7rXVhLHzVdfgkBE2jHuh/58pkFyHBLTLZwYGoy:JXB2GxebHzDyCw/VFye9F+Ojh7yaEr4

Malware Config

Extracted

Family

xworm

Version

5.0

C2

cheflilou-43810.portmap.host:43810

Mutex

JQrIKWspeoVSCrcE

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Sets desktop wallpaper using registry 2 TTPs 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).

  • 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 Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Drops startup file
    • Sets desktop wallpaper using registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\How To Decrypt My Files.html
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4740
      • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffa10cd46f8,0x7ffa10cd4708,0x7ffa10cd4718
        3⤵
          PID:184
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2112 /prefetch:2
          3⤵
            PID:2184
          • 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=2096,11644978949434489831,15885491512000286774,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            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=storage.mojom.StorageService --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2780 /prefetch:8
            3⤵
              PID:32
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=3228 /prefetch:1
              3⤵
                PID:3360
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=3276 /prefetch:1
                3⤵
                  PID:4128
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5128 /prefetch:8
                  3⤵
                    PID:1776
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5128 /prefetch:8
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2624
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=5216 /prefetch:1
                    3⤵
                      PID:1520
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5232 /prefetch:1
                      3⤵
                        PID:4564
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=3228 /prefetch:1
                        3⤵
                          PID:5028
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3452 /prefetch:1
                          3⤵
                            PID:2492
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2096,11644978949434489831,15885491512000286774,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1932 /prefetch:2
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:448
                        • C:\Windows\SYSTEM32\cmd.exe
                          "cmd"
                          2⤵
                            PID:1388
                            • C:\Windows\system32\netsh.exe
                              netsh wlan show profiles
                              3⤵
                              • Event Triggered Execution: Netsh Helper DLL
                              • System Network Configuration Discovery: Wi-Fi Discovery
                              PID:4192
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:3096
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4260

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

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

                              Filesize

                              152B

                              MD5

                              7de1bbdc1f9cf1a58ae1de4951ce8cb9

                              SHA1

                              010da169e15457c25bd80ef02d76a940c1210301

                              SHA256

                              6e390bbc0d03a652516705775e8e9a7b7936312a8a5bea407f9d7d9fa99d957e

                              SHA512

                              e4a33f2128883e71ab41e803e8b55d0ac17cbc51be3bde42bed157df24f10f34ad264f74ef3254dbe30d253aca03158fde21518c2b78aaa05dae8308b1c5f30c

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

                              Filesize

                              152B

                              MD5

                              85ba073d7015b6ce7da19235a275f6da

                              SHA1

                              a23c8c2125e45a0788bac14423ae1f3eab92cf00

                              SHA256

                              5ad04b8c19bf43b550ad725202f79086168ecccabe791100fba203d9aa27e617

                              SHA512

                              eb4fd72d7030ea1a25af2b59769b671a5760735fb95d18145f036a8d9e6f42c903b34a7e606046c740c644fab0bb9f5b7335c1869b098f121579e71f10f5a9c3

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

                              Filesize

                              124KB

                              MD5

                              250f1a3a524ee5e1ba3f0756f99b6690

                              SHA1

                              776015f554b415e881624bba5fa2f046b970eafb

                              SHA256

                              926228c2f6b5174c1b0b9f933be5c04326d1f03d879ff374523890dcb369b38f

                              SHA512

                              aaaf8a7db52339c6ee263d337753c838a363cae03ac4fa8a1dc4b2a57effdabbf88acba5b46338659906f7f20213dd804bd128f9a2e377722a71fdaf345ce55b

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

                              Filesize

                              6KB

                              MD5

                              c3b57af4fe8a469aaadaaa596ac0f12f

                              SHA1

                              608831221bd4e5544250fed3692989a7affbcdf3

                              SHA256

                              4af0d9418409835aef0f90d724fabe79c31d91e04b69df5cde37e32d3ae46f9d

                              SHA512

                              b4c7d35ae284eb7431e0e7496281fa501e77a1104a1f5ca29af63dc46a0dbd7e1bf4552219e88a568b547c65405dee14a02e88de976f2dac6b868312f795f551

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

                              Filesize

                              5KB

                              MD5

                              a8c823528809c65cb582a9fdf0ebd21d

                              SHA1

                              692c4ebb518eb7f7daa66dc9c03b148159d874ce

                              SHA256

                              2531723599af87e4f665a778a68a18df0531de502ac839db04979542f48fde12

                              SHA512

                              4541fa75d8fddfd000eb243a87508686756ed61666ad74246fdfbb98d1d95795093ed2e1528f204228ca08d11646cca5dc654183997fb68a96f1ed7160127ba2

                            • 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

                              10KB

                              MD5

                              9e672fa7063e9fb8157eed5f7331464d

                              SHA1

                              e2af763a209bdb87cd58794ebc7546dabb76bed7

                              SHA256

                              7765db8122adb5cfb08c245f2a606c22e15621f533fc985edb6339e50bda90da

                              SHA512

                              cb7a4c10befb7af193e62aa3036ee31f001fde6c8dc98c78980de1ef3f34fbe02aa8d115bc40afe015956dd7452c0aa0cf2d68e46825bf29d39108b8f31816ad

                            • C:\Users\Admin\Desktop\How To Decrypt My Files.html

                              Filesize

                              659B

                              MD5

                              3240858de0533c03c7e03b0a580e2e5d

                              SHA1

                              c5d057fc592c3839048dc1d6f3c5619b46203ad9

                              SHA256

                              29cbddfee201713aaa5ed75402cfb588b764d4a33bd89537e1b3f9238f777ed3

                              SHA512

                              70ef6de859f73ca9637e10348de945e5eb2b689db4aceec58bd509a6d1ef3c0721134e104d2eafc654181cb9cbd6e553b750ffb8942fe665cf68238afb125208

                            • C:\Users\Admin\NTUSER.DAT{53b39e88-18c4-11ea-a811-000d3aa4692b}.TMContainer00000000000000000001.regtrans-ms.ENC

                              Filesize

                              16B

                              MD5

                              52786be9ac0d12123c38502248a875be

                              SHA1

                              5e00b2270c1627b6d4bca2dc1f006587b2bfd8b1

                              SHA256

                              5c5128a9bb85213184df46a265ccddb8208c8ed8faaf544894328f6f9a51ba41

                              SHA512

                              8d6e057272320092ccc9dbb7d25fa6685775071bc7e0a294b3b37ef919728d462123dde3df19ec5f6f9d9c4d365b3f37339faf5df4ef28989c53ca7e1a7b9e0d

                            • memory/1964-7-0x00007FFA14270000-0x00007FFA14D31000-memory.dmp

                              Filesize

                              10.8MB

                            • memory/1964-6-0x00007FFA14270000-0x00007FFA14D31000-memory.dmp

                              Filesize

                              10.8MB

                            • memory/1964-9-0x000000001C780000-0x000000001C93A000-memory.dmp

                              Filesize

                              1.7MB

                            • memory/1964-11-0x0000000002FD0000-0x0000000002FDC000-memory.dmp

                              Filesize

                              48KB

                            • memory/1964-10-0x0000000001610000-0x000000000161C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1964-0-0x00007FFA14273000-0x00007FFA14275000-memory.dmp

                              Filesize

                              8KB

                            • memory/1964-309-0x000000001EB80000-0x000000001ECA0000-memory.dmp

                              Filesize

                              1.1MB

                            • memory/1964-310-0x000000001BE10000-0x000000001BE1E000-memory.dmp

                              Filesize

                              56KB

                            • memory/1964-1-0x0000000000D20000-0x0000000000D2E000-memory.dmp

                              Filesize

                              56KB

                            • memory/1964-350-0x000000001BF80000-0x000000001BFA2000-memory.dmp

                              Filesize

                              136KB

                            • memory/1964-351-0x000000001FAC0000-0x000000001FE10000-memory.dmp

                              Filesize

                              3.3MB