Resubmissions

05-03-2024 05:37

240305-gbkwqsge55 8

05-03-2024 05:34

240305-f9ksysfe9v 6

Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05-03-2024 05:37

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
4/10

Malware Config

Signatures

  • 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 16 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 12 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:3608
    • 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⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3604
      • 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:4916
        • 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:4668
        • C:\Windows\SysWOW64\find.exe
          C:\Windows\System32\find.exe "Lunar Client.exe"
          4⤵
            PID:4012
        • 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:1800
          • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffca8a93cb8,0x7ffca8a93cc8,0x7ffca8a93cd8
            4⤵
              PID:3592
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1928 /prefetch:2
              4⤵
                PID:1776
              • 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=1916,1572525247371564154,14209536141395723679,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2364 /prefetch:3
                4⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4604
              • 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=1916,1572525247371564154,14209536141395723679,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2716 /prefetch:8
                4⤵
                  PID:3904
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=3176 /prefetch:1
                  4⤵
                    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=1916,1572525247371564154,14209536141395723679,131072 --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=3184 /prefetch:1
                    4⤵
                      PID:2880
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=5432 /prefetch:1
                      4⤵
                        PID:1612
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=3960 /prefetch:1
                        4⤵
                          PID:3404
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=4024 /prefetch:1
                          4⤵
                            PID:3540
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=4856 /prefetch:1
                            4⤵
                              PID:1632
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5528 /prefetch:8
                              4⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:2692
                            • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5820 /prefetch:8
                              4⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4896
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5988 /prefetch:1
                              4⤵
                                PID:4556
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6172 /prefetch:1
                                4⤵
                                  PID:1100
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1916,1572525247371564154,14209536141395723679,131072 --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=10.0.22000.1 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=4700 /prefetch:2
                                  4⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:4804
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:436
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:5072

                              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

                                656bb397c72d15efa159441f116440a6

                                SHA1

                                5b57747d6fdd99160af6d3e580114dbbd351921f

                                SHA256

                                770ed0fcd22783f60407cdc55b5998b08e37b3e06efb3d1168ffed8768751fab

                                SHA512

                                5923db1d102f99d0b29d60916b183b92e6be12cc55733998d3da36d796d6158c76e385cef320ec0e9afa242a42bfb596f7233b60b548f719f7d41cb8f404e73c

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

                                Filesize

                                152B

                                MD5

                                d459a8c16562fb3f4b1d7cadaca620aa

                                SHA1

                                7810bf83e8c362e0c69298e8c16964ed48a90d3a

                                SHA256

                                fa31bc49a2f9af06d325871104e36dd69bfe3847cd521059b62461a92912331a

                                SHA512

                                35cb00c21908e1332c3439af1ec9867c81befcc4792248ee392080b455b1f5ce2b0c0c2415e344d91537469b5eb72f330b79feb7e8a86eeb6cf41ec5be5dfd2f

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

                                Filesize

                                672B

                                MD5

                                ce02434c4b91be51dcc329ca158aeeb8

                                SHA1

                                37f0858ce381f68ccabf4da81d98064a1cb16616

                                SHA256

                                157ddd825c3a5dc26e4d689ba54b3a464dec2b099eaca23096f234c58e5bace6

                                SHA512

                                c2adf42ba8bd59b4e813721cbf0edc87abf44af690db46da0b44c2e0bc9bad993984aae403e7a1b92d36c62da617dd8d3bcb6e5d0368b5b270ed88d67a474901

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

                                Filesize

                                2KB

                                MD5

                                a6af08520f5bcbc7f989db3767eca2ac

                                SHA1

                                a4a446b61f790427cee9f0c3a281e6fb059b56e0

                                SHA256

                                56f23bafda1a56bcec26caef2c59664f7cf635d0e971e652f4664365c5c02c31

                                SHA512

                                52a9ad49b2e4f85ef6e07bf57ca44bb3a87aadaba1d71d3d4dca0b307419c8383e95b48ce3179e66b2385cfde888ee98a1d646cdc3a7fb7ac56fcc0f2c94a574

                              • 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

                                5KB

                                MD5

                                c4d70f4ad93b750a05311e9451a05f0f

                                SHA1

                                342e293ce42cd382daaac83e1cd5efed3d475e7a

                                SHA256

                                c11c59f8b3af5bad182ee3d2ac52cfc63ce913d50f8e74bb06a1e6580434f1db

                                SHA512

                                f2e0cb76af4facf0f63f069f83a1435128bfcb1488df67fe3c4cbdc4d2039cbd84dc79490f0b4d0b34be85037ecaa1c999201ea6941a166b22a821ee8f80db78

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

                                Filesize

                                6KB

                                MD5

                                8df8bbbc64cd6bd7dd155f531f71bd29

                                SHA1

                                fe62ca814cb35ae565d9538f48ea9d00b0e87255

                                SHA256

                                f87413944f068203cd350935100545d55ea708c7730f88fb0044f06a7f851320

                                SHA512

                                f5d8f74d1a6db7f05a5112dc0c9746eb5a21a1530eb9f784b0be0399b419228236f5f9ca8d7eba2d426e1da29eac19e7cbbcecbd4310a03a858a183611b98b83

                              • 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

                                11KB

                                MD5

                                7bea51cabd760455d9e23463f65291b1

                                SHA1

                                d8f879881570f19d40c38dd3a8a3c5f788c20b88

                                SHA256

                                a675b50f93b21943f8516339e6edcadaa1121f63bc62e329b224573692d53dd8

                                SHA512

                                718532a36295560a017d51ddac28083463c2edceb00a9e65cfb53c6aabf2976acf40a2a79ec309cb40bb578d51c97adae9c37ed043e0e13def335438d1b82148

                              • C:\Users\Admin\AppData\Local\Temp\nso6979.tmp\StdUtils.dll

                                Filesize

                                100KB

                                MD5

                                c6a6e03f77c313b267498515488c5740

                                SHA1

                                3d49fc2784b9450962ed6b82b46e9c3c957d7c15

                                SHA256

                                b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

                                SHA512

                                9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

                              • C:\Users\Admin\AppData\Local\Temp\nso6979.tmp\System.dll

                                Filesize

                                12KB

                                MD5

                                0d7ad4f45dc6f5aa87f606d0331c6901

                                SHA1

                                48df0911f0484cbe2a8cdd5362140b63c41ee457

                                SHA256

                                3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

                                SHA512

                                c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

                              • C:\Users\Admin\AppData\Local\Temp\nso6979.tmp\WinShell.dll

                                Filesize

                                3KB

                                MD5

                                1cc7c37b7e0c8cd8bf04b6cc283e1e56

                                SHA1

                                0b9519763be6625bd5abce175dcc59c96d100d4c

                                SHA256

                                9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

                                SHA512

                                7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

                              • C:\Users\Admin\AppData\Local\Temp\nso6979.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

                              • \??\pipe\LOCAL\crashpad_1800_WHQUBCXICAHJBQME

                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e