Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2024, 18:34

General

  • Target

    $R0/Uninstall Lunar Client.exe

  • Size

    179KB

  • MD5

    d8467036b71c4b617ba5c2d90a3c8f34

  • SHA1

    af9542cc0c2962ef73190d6f85d43d0202130529

  • SHA256

    970ea7020a05ad79d9d89bc584553452abf2745a7e47be6792578eb3e41fb382

  • SHA512

    693070ec8f10ee7cab7f4ed8758723d8574a847fd8f408e5d0c445567296bbbe437d36be8ac8acd671f40c4d4b0a67b0e6fafcee1f0f6ae0dcf0cd788f0802c6

  • SSDEEP

    3072:Kn77v00hEoDEtau24lkW6Dx/XItjLSTtWIDlXiGzo7Qqt7iv1/aH2tvhOEA1RJC9:K740ImskW6V4tjLSTPpiGzo7Qqtmvpsm

Score
5/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 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\$R0\Uninstall Lunar Client.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3280
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://lunarclient.com/uninstaller/?installId=unknown
        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:620
        • 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,0x100,0x104,0xd8,0x108,0x7ff8249346f8,0x7ff824934708,0x7ff824934718
          4⤵
            PID:392
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2064 /prefetch:2
            4⤵
              PID:2664
            • 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=2076,9352123449202156476,6829168860994794734,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2156 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4816
            • 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=2076,9352123449202156476,6829168860994794734,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2664 /prefetch:8
              4⤵
                PID:2952
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=3188 /prefetch:1
                4⤵
                  PID:4576
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=3196 /prefetch:1
                  4⤵
                    PID:4168
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=5128 /prefetch:1
                    4⤵
                      PID:116
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=5280 /prefetch:1
                      4⤵
                        PID:3500
                      • 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=2076,9352123449202156476,6829168860994794734,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5636 /prefetch:8
                        4⤵
                          PID:4120
                        • 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=2076,9352123449202156476,6829168860994794734,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5636 /prefetch:8
                          4⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1320
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=5712 /prefetch:1
                          4⤵
                            PID:4196
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=5728 /prefetch:1
                            4⤵
                              PID:3364
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3292 /prefetch:1
                              4⤵
                                PID:3416
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6052 /prefetch:1
                                4⤵
                                  PID:2284
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2076,9352123449202156476,6829168860994794734,131072 --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=4388 /prefetch:2
                                  4⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:3748
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:1280
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:3128

                              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

                                eaa3db555ab5bc0cb364826204aad3f0

                                SHA1

                                a4cdfaac8de49e6e6e88b335cfeaa7c9e3c563ca

                                SHA256

                                ef7baeb1b2ab05ff3c5fbb76c2759db49294654548706c7c8e87f0cde855b86b

                                SHA512

                                e13981da51b52c15261ecabb98af32f9b920651b46b10ce0cc823c5878b22eb1420258c80deef204070d1e0bdd3a64d875ac2522e3713a3cf11657aa55aeccd4

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

                                Filesize

                                152B

                                MD5

                                4b4f91fa1b362ba5341ecb2836438dea

                                SHA1

                                9561f5aabed742404d455da735259a2c6781fa07

                                SHA256

                                d824b742eace197ddc8b6ed5d918f390fde4b0fbf0e371b8e1f2ed40a3b6455c

                                SHA512

                                fef22217dcdd8000bc193e25129699d4b8f7a103ca4fe1613baf73ccf67090d9fbae27eb93e4bb8747455853a0a4326f2d0c38df41c8d42351cdcd4132418dac

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

                                Filesize

                                648B

                                MD5

                                67c611bb8e63c9a946254ceb26ded91c

                                SHA1

                                9ea13e9c5609fff35ff4448e712baee5888c7d45

                                SHA256

                                05861655b8174d71257da36d831687baa622ce86f6299c13613c01da15f2407b

                                SHA512

                                3416d280d818787b48722af958d8c56bd40c186a10a05f2330f66d0e68255bc688c19eb9c02fbafa72025bc850af7f010fe2195f4595d89604db2d19681e13f7

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

                                Filesize

                                2KB

                                MD5

                                21bfcb1b0c073b9b942d26600e03ac57

                                SHA1

                                438c8763b89a04fb8493d00a7c1491e5f8ce7a4c

                                SHA256

                                0b597de37681088bc1afdb2ee53f6ead3dd2f62e275e0292912091312f5cb5d0

                                SHA512

                                86bf7923dc3f672bfd3f033e028042774eb6e3cbf3ca71b90909eb57a839f8bf347a43893206f18a733c1bc8490f9417c61659fc4288266b6c8a3751201b759c

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

                                Filesize

                                7KB

                                MD5

                                8ab23f474f4e509c2fd8cd27a3888102

                                SHA1

                                2d8f1bb00ee3bc1f3d564ded7cd983ebb73a48d1

                                SHA256

                                770ed9660f7a3b919f65dc341f94644804ca365c695132b93c54de6bdfd2fbdb

                                SHA512

                                532b2c8015b372d67bdedf40025ae529c58f3c166a1eb963e467026f42f5c56c1cd396eba24e55494ac64615468309dd2010c1b3b867326338846ba511b1441a

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

                                Filesize

                                7KB

                                MD5

                                735605a04d9acd33adb82706353a185b

                                SHA1

                                1fca336954162f665aeb221d5d0e1ae7bbde5335

                                SHA256

                                eb744664a76e59fa919a90672f89cad45640869131895f5f242e30bee08d1210

                                SHA512

                                8ecf31b59a3ba59cdc208e5bcbcc460d235af6efef0f633817d95b6f2a78a01adca10e7134f7a073ec053a93135c6049a01dd45017062d5946173c72c4854f16

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

                                Filesize

                                5KB

                                MD5

                                f7e28856d9e724d1a81b9ae37b4413f5

                                SHA1

                                f231661fe249eb1753160e205d2800c345809cf4

                                SHA256

                                b6f4452621dde2c6120a51c8610751163a62cf77ea77b1b9d066e03301bf7d11

                                SHA512

                                cfc690a5fedccce521e5c6be8d45a02580bdb36f6f7a1f8424cdde7061ee89c382b1ce310430d7317c16824f450113cf12bddbc9b4b8fcd19c276b813a4bf040

                              • 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

                                b63c59c27158272d3b3190689502c137

                                SHA1

                                f2623cf6dbb4a675631e8652745ba7d46a2ac44f

                                SHA256

                                b9ed21fa2e444a6cd1291fac5e43fdf564eff4a477281e17bbf42c2668bad44c

                                SHA512

                                8ad8b023549b1d97823463a561768ae7883c76c2d744e28d72e57c15c63d4728dfff9a4af030c77b25c0120715d31f20f15417436941773c209e2d6ed786e751

                              • C:\Users\Admin\AppData\Local\Temp\nso42C7.tmp\StdUtils.dll

                                Filesize

                                100KB

                                MD5

                                c6a6e03f77c313b267498515488c5740

                                SHA1

                                3d49fc2784b9450962ed6b82b46e9c3c957d7c15

                                SHA256

                                b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

                                SHA512

                                9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

                              • C:\Users\Admin\AppData\Local\Temp\nso42C7.tmp\System.dll

                                Filesize

                                12KB

                                MD5

                                0d7ad4f45dc6f5aa87f606d0331c6901

                                SHA1

                                48df0911f0484cbe2a8cdd5362140b63c41ee457

                                SHA256

                                3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

                                SHA512

                                c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

                              • C:\Users\Admin\AppData\Local\Temp\nso42C7.tmp\WinShell.dll

                                Filesize

                                3KB

                                MD5

                                1cc7c37b7e0c8cd8bf04b6cc283e1e56

                                SHA1

                                0b9519763be6625bd5abce175dcc59c96d100d4c

                                SHA256

                                9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

                                SHA512

                                7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

                              • C:\Users\Admin\AppData\Local\Temp\nso42C7.tmp\nsExec.dll

                                Filesize

                                6KB

                                MD5

                                ec0504e6b8a11d5aad43b296beeb84b2

                                SHA1

                                91b5ce085130c8c7194d66b2439ec9e1c206497c

                                SHA256

                                5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

                                SHA512

                                3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

                              • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

                                Filesize

                                179KB

                                MD5

                                d8467036b71c4b617ba5c2d90a3c8f34

                                SHA1

                                af9542cc0c2962ef73190d6f85d43d0202130529

                                SHA256

                                970ea7020a05ad79d9d89bc584553452abf2745a7e47be6792578eb3e41fb382

                                SHA512

                                693070ec8f10ee7cab7f4ed8758723d8574a847fd8f408e5d0c445567296bbbe437d36be8ac8acd671f40c4d4b0a67b0e6fafcee1f0f6ae0dcf0cd788f0802c6