Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-03-2024 03:46

General

  • Target

    $R0/Uninstall Lunar Client.exe

  • Size

    404KB

  • MD5

    227c1f9fe7c7f6fb24a451a5ca84e722

  • SHA1

    9c34be548c0b2affd930d05c1b315a5cbe9bca45

  • SHA256

    bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a

  • SHA512

    1fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66

  • SSDEEP

    3072:Wn77v00hEoDEtauTsqBGeQIfxqxAjDsksbfVl1snhl+l2L0Sa9/l7a4vZAzLmDVH:W740IEa+J+Rql1DKs2t0EyL+ya2

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 processes with tasklist 1 TTPs 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 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:3600
    • 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:1384
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq Lunar Client.exe" | %SYSTEMROOT%\System32\find.exe "Lunar Client.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3540
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq Lunar Client.exe"
          4⤵
          • Enumerates processes with tasklist
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4908
        • C:\Windows\SysWOW64\find.exe
          C:\Windows\System32\find.exe "Lunar Client.exe"
          4⤵
            PID:5108
        • 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:976
          • 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=0x100,0x104,0x108,0xdc,0x10c,0x7ffa7c1946f8,0x7ffa7c194708,0x7ffa7c194718
            4⤵
              PID:396
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2180 /prefetch:2
              4⤵
                PID:3088
              • 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=2168,14278023787359336010,9771357249638863648,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2232 /prefetch:3
                4⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:1276
              • 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=2168,14278023787359336010,9771357249638863648,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2748 /prefetch:8
                4⤵
                  PID:5044
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=3272 /prefetch:1
                  4⤵
                    PID:2968
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=3288 /prefetch:1
                    4⤵
                      PID:900
                    • 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=2168,14278023787359336010,9771357249638863648,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4988 /prefetch:8
                      4⤵
                        PID:2716
                      • 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=2168,14278023787359336010,9771357249638863648,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4988 /prefetch:8
                        4⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:748
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=5528 /prefetch:1
                        4⤵
                          PID:4792
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=5424 /prefetch:1
                          4⤵
                            PID:4992
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=3356 /prefetch:1
                            4⤵
                              PID:5324
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=5364 /prefetch:1
                              4⤵
                                PID:5368
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=5160 /prefetch:1
                                4⤵
                                  PID:5576
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=5472 /prefetch:1
                                  4⤵
                                    PID:5584
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2168,14278023787359336010,9771357249638863648,131072 --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=4868 /prefetch:2
                                    4⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:4344
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:516
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4420

                                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

                                  e0811105475d528ab174dfdb69f935f3

                                  SHA1

                                  dd9689f0f70a07b4e6fb29607e42d2d5faf1f516

                                  SHA256

                                  c91388c87878a9e2c530c6096dbdd993b0a26fefe8ad797e0133547225032d6c

                                  SHA512

                                  8374a721ea3ff3a1ea70d8a074e5c193dbba27ba7e301f19cea89d648b2378c376e48310c33fe81078cd40b1863daec935e8ac22e8e3878dc3a5bb529d028852

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

                                  Filesize

                                  152B

                                  MD5

                                  47b2c6613360b818825d076d14c051f7

                                  SHA1

                                  7df7304568313a06540f490bf3305cb89bc03e5c

                                  SHA256

                                  47a22bea2e7d0154c59bf5d8790ec68274eb05e9fa6cf0eab0d648121f1a02ac

                                  SHA512

                                  08d2366fc1ce87dbe96b9bf997e4c59c9206fcfea47c1f17b01e79aeb0580f25cac5c7349bb453a50775b2743053446653f4129f835f81f4a8547ca392557aac

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

                                  Filesize

                                  672B

                                  MD5

                                  ff794b6234a50b4c4d16a605efb416ed

                                  SHA1

                                  f651512cd126b12a33eb4ca31b83ab9f3e19b860

                                  SHA256

                                  5cdd1999041b831a780ce5d8a51509a1fe5dbb36cbab733ab842a3f9e685a6e7

                                  SHA512

                                  acb0efb7e9481977eb79539f4ba8c8a76f913f726d11de6bccfcd479f43ca8131a3224fbcd54bd515a1c07c2a0ed497c15fa3fc9c70c795d8436be248881e421

                                • 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

                                  7KB

                                  MD5

                                  6f306969f08720821a5b08d269ddc97b

                                  SHA1

                                  5560d9c065a1cc140c7e66f47613f0dc1a2ac403

                                  SHA256

                                  a9baae339b1115fcd8858a53ce537b4c7ef61fc059fcc79cbbfa75761f84083c

                                  SHA512

                                  f1bbc720c279f9bb4033cb3eeece67eba63d26325b2d2e50ade062c0650b635e3b9bf933a03b17193f15e8fd5dcfb711d3f4e9ad21f018497595316ccba76ed7

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

                                  Filesize

                                  6KB

                                  MD5

                                  13b7a6d784039f439a2569a7bff668b8

                                  SHA1

                                  9ece8c8991f61a65c9befd2e440b8d3ba2a6ef51

                                  SHA256

                                  c466c6c5bf910658b96f027ac961d288fd4e97bf358fa7b1c5e8280b8cf36a84

                                  SHA512

                                  6a908bbd70c3f688780022848dfd0568a6763653ee1ed0c8c85166bb5bfa3e4ee987dabc0aff7f316d3fadcb2fdc96d97cdc5c3bf4ebcfbb89bc3e1b0a8d0fd6

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\b06cf5c9-ec28-4f5d-a55f-7d93918fdccb.tmp

                                  Filesize

                                  2KB

                                  MD5

                                  28f896ba2ece572ba127539fc15a1caf

                                  SHA1

                                  2fa07fdd58f50c01f0829bdf455a181e537e20c8

                                  SHA256

                                  d5a4a2bde96f000aee1d1b9aea6b3865d03be8a4f619e6f8f0e2c4177278c753

                                  SHA512

                                  c8cecc976f3c2ba482c112da30e1fd6135adc4ee8676efada0a6c28c78ef8480970c4312f12b3d5fba74923885cdbc31be9a0613d0eb18d8d732c75d8f17ebd2

                                • 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

                                  12KB

                                  MD5

                                  b653fc6281e34ccf435494454f0d1516

                                  SHA1

                                  e288861e23ead125daebd3e8345f8f2025eb0589

                                  SHA256

                                  06b03196ea5ace5617a930a51b0dd586dbf182901e6f11cd57992685bb03cdc1

                                  SHA512

                                  596af3c65fc1d39c59bc334192963a54359d981e40918105fb348f32d462000b3785462e60d90ec94a1c971f80b9f118fa86023bf8eed4fe64b458da8991f88d

                                • C:\Users\Admin\AppData\Local\Temp\nsf3B06.tmp\StdUtils.dll

                                  Filesize

                                  100KB

                                  MD5

                                  c6a6e03f77c313b267498515488c5740

                                  SHA1

                                  3d49fc2784b9450962ed6b82b46e9c3c957d7c15

                                  SHA256

                                  b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

                                  SHA512

                                  9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

                                • C:\Users\Admin\AppData\Local\Temp\nsf3B06.tmp\System.dll

                                  Filesize

                                  12KB

                                  MD5

                                  0d7ad4f45dc6f5aa87f606d0331c6901

                                  SHA1

                                  48df0911f0484cbe2a8cdd5362140b63c41ee457

                                  SHA256

                                  3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

                                  SHA512

                                  c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

                                • C:\Users\Admin\AppData\Local\Temp\nsf3B06.tmp\WinShell.dll

                                  Filesize

                                  3KB

                                  MD5

                                  1cc7c37b7e0c8cd8bf04b6cc283e1e56

                                  SHA1

                                  0b9519763be6625bd5abce175dcc59c96d100d4c

                                  SHA256

                                  9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

                                  SHA512

                                  7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

                                • C:\Users\Admin\AppData\Local\Temp\nsf3B06.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

                                  404KB

                                  MD5

                                  227c1f9fe7c7f6fb24a451a5ca84e722

                                  SHA1

                                  9c34be548c0b2affd930d05c1b315a5cbe9bca45

                                  SHA256

                                  bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a

                                  SHA512

                                  1fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66