Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 12:05

General

  • Target

    Server.exe

  • Size

    37KB

  • MD5

    704ed08f02343f35ff669d8ec651d4c1

  • SHA1

    44b3f95cd69649435f129d9bcd0363a402d1534a

  • SHA256

    92daebf4afdf05aa2b7e92ec7d81c44803d255fc9bd6bbda8f9ed4af271b45da

  • SHA512

    022f1ffe197e038c46b2ce46e59106bd910d5eb85fc6a08d999dda14ed5be7eb1c168b7a0e4158ab23368d97c43fd1b44034e543c5c0e68b3ba6fbae860c2cb9

  • SSDEEP

    384:ZLm2KMizd9jnBhFbJ8ycPVnvvnwaUBTrAF+rMRTyN/0L+EcoinblneHQM3epzXF0:Q2g9lLJfcPVn3VU9rM+rMRa8Nu7ct

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 6 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 6 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 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\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4596
    • C:\Users\Admin\AppData\Local\Temp\njrat_test.exe
      "C:\Users\Admin\AppData\Local\Temp\njrat_test.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\njrat_test.exe" "njrat_test.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4872
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.google.com/
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:4456
        • 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,0x100,0x104,0xd8,0x108,0x7ffc6dcd46f8,0x7ffc6dcd4708,0x7ffc6dcd4718
          4⤵
            PID:4828
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2088 /prefetch:2
            4⤵
              PID:5116
            • 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=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2228 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4420
            • 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=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2804 /prefetch:8
              4⤵
                PID:3068
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --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=3288 /prefetch:1
                4⤵
                  PID:5108
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --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=3316 /prefetch:1
                  4⤵
                    PID:5112
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --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=5020 /prefetch:1
                    4⤵
                      PID:5028
                    • 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=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5260 /prefetch:8
                      4⤵
                        PID:4300
                      • 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=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5260 /prefetch:8
                        4⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:4072
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5596 /prefetch:1
                        4⤵
                          PID:4532
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5492 /prefetch:1
                          4⤵
                            PID:3820
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5040 /prefetch:1
                            4⤵
                              PID:4160
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,6988470531333297957,12288471056678521428,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5728 /prefetch:1
                              4⤵
                                PID:5012
                            • C:\Windows\SysWOW64\netsh.exe
                              netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\njrat_test.exe"
                              3⤵
                              • Modifies Windows Firewall
                              • Event Triggered Execution: Netsh Helper DLL
                              • System Location Discovery: System Language Discovery
                              PID:1736
                            • C:\Windows\SysWOW64\cmd.exe
                              cmd.exe /k ping 0 & del "C:\Users\Admin\AppData\Local\Temp\njrat_test.exe" & exit
                              3⤵
                              • System Location Discovery: System Language Discovery
                              • System Network Configuration Discovery: Internet Connection Discovery
                              PID:3548
                              • C:\Windows\SysWOW64\PING.EXE
                                ping 0
                                4⤵
                                • System Location Discovery: System Language Discovery
                                • System Network Configuration Discovery: Internet Connection Discovery
                                • Runs ping.exe
                                PID:2936
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:4700
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4412

                            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

                              34d2c4f40f47672ecdf6f66fea242f4a

                              SHA1

                              4bcad62542aeb44cae38a907d8b5a8604115ada2

                              SHA256

                              b214e3affb02a2ea4469a8bbdfa8a179e7cc57cababd83b4bafae9cdbe23fa33

                              SHA512

                              50fba54ec95d694211a005d0e3e6cf5b5677efa16989cbf854207a1a67e3a139f32b757c6f2ce824a48f621440b93fde60ad1dc790fcec4b76edddd0d92a75d6

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

                              Filesize

                              152B

                              MD5

                              8749e21d9d0a17dac32d5aa2027f7a75

                              SHA1

                              a5d555f8b035c7938a4a864e89218c0402ab7cde

                              SHA256

                              915193bd331ee9ea7c750398a37fbb552b8c5a1d90edec6293688296bda6f304

                              SHA512

                              c645a41180ed01e854f197868283f9b40620dbbc813a1c122f6870db574ebc1c4917da4d320bdfd1cc67f23303a2c6d74e4f36dd9d3ffcfa92d3dfca3b7ca31a

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Cache\f_000003

                              Filesize

                              215KB

                              MD5

                              d79b35ccf8e6af6714eb612714349097

                              SHA1

                              eb3ccc9ed29830df42f3fd129951cb8b791aaf98

                              SHA256

                              c8459799169b81fdab64d028a9ebb058ea2d0ad5feb33a11f6a45a54a5ccc365

                              SHA512

                              f4be1c1e192a700139d7cff5059af81c0234ed5f032796036a1a4879b032ce4eedd16a121bbf776f17bc84a0012846f467ad48b46db4008841c25b779c7d8f5a

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

                              Filesize

                              144B

                              MD5

                              7d86fa20f05993965fd490eb1407baa3

                              SHA1

                              b986f9e7ad640a65c2a0f371e81eaa2f7eb807fb

                              SHA256

                              055c85fecd68d2276115e3c3db315ada7b9c3c88a9c01307b226c14bbf5d113e

                              SHA512

                              5e2decf1703b5e9e2af5017a2bcbeca0764bf5d35fd83f3cdb54e23390bc0130eecefe7b56e07b2e380b326b931c195b34bd77bc6a65ad528bcda9702356f8ae

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

                              Filesize

                              845B

                              MD5

                              027f499f372a0d5fe4f7ee156f5a5802

                              SHA1

                              5a905a99a64f2d97371c46a5ddc4db589eee7288

                              SHA256

                              7746f007f7ae94725987cb51ad31047db6e9336f94907d9cfc43b9679eb22217

                              SHA512

                              ab361b9182547a745c8fea1bc7a2eacc5bb7b952587f380a9e8bd49b457e998ab06d3790edd97166bd61fd60abd016bb5244e3a3bbefb3ebfac620f92da4b539

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

                              Filesize

                              5KB

                              MD5

                              cede4f977050c8f8ab3322018de75650

                              SHA1

                              398172ce7699c036e1356a29e051ea8de7d37470

                              SHA256

                              7bd8ca1525bd99d6fa24fd5c36d79aec61794c4ca9996c1b8bcac2f10579aeb9

                              SHA512

                              3a13e986257d99e7e897409dc20229682f0bce06611e15eeb1c3c66c0134555e7cb4319f413e8247ee16a76c5f3dfbe4e5a948c393203d9583fb29e004bcfbfd

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

                              Filesize

                              6KB

                              MD5

                              0acd50d47786488bd343b5d81d0cf2a3

                              SHA1

                              b250314f13b9f6106bb0b5e589ec02c2d71a5b81

                              SHA256

                              de2cab543a5c61c5379aec51e3185e56e68827aea3a64e4626cb4d4b823e066e

                              SHA512

                              ce0c1e4949950f645cf2a21734f75f0d83926551b47c71ccc74bf2c37d9c24622df6a12cad72ebbd65ac746aa971125797fce0889e140f50b57c1556e1b8fbb8

                            • 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

                              b3c5b09ff2a77969faba615a03d47392

                              SHA1

                              2d1fd98861be077ead487afdd5a888f2742568ce

                              SHA256

                              e150a791c55b8add220020d743468b71a3b402dc59d8f0225ec3a97d195708dd

                              SHA512

                              88dde96c3aaa966a770ce992322cc006cef7c87abad620ba2ab3c0c18e23665fca4d3de4b7959657f86b76d502aedac04499d64cb3998f8f2b7a04cb78c70aa6

                            • C:\Users\Admin\AppData\Local\Temp\njrat_test.exe

                              Filesize

                              37KB

                              MD5

                              704ed08f02343f35ff669d8ec651d4c1

                              SHA1

                              44b3f95cd69649435f129d9bcd0363a402d1534a

                              SHA256

                              92daebf4afdf05aa2b7e92ec7d81c44803d255fc9bd6bbda8f9ed4af271b45da

                              SHA512

                              022f1ffe197e038c46b2ce46e59106bd910d5eb85fc6a08d999dda14ed5be7eb1c168b7a0e4158ab23368d97c43fd1b44034e543c5c0e68b3ba6fbae860c2cb9

                            • memory/852-15-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-20-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-19-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-18-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-17-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-16-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-14-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-12-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/852-142-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4596-0-0x0000000075212000-0x0000000075213000-memory.dmp

                              Filesize

                              4KB

                            • memory/4596-13-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4596-2-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4596-1-0x0000000075210000-0x00000000757C1000-memory.dmp

                              Filesize

                              5.7MB