Analysis

  • max time kernel
    141s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-02-2024 01:05

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:4988
    • 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:4888
      • 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:3848
        • 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:3996
        • C:\Windows\SysWOW64\find.exe
          C:\Windows\System32\find.exe "Lunar Client.exe"
          4⤵
            PID:2888
        • 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:1844
          • 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,0x100,0x104,0xd8,0x108,0x7ffd8cde46f8,0x7ffd8cde4708,0x7ffd8cde4718
            4⤵
              PID:2828
            • 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=2108,6094797801954339037,6396514866842815858,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2188 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3992
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2132 /prefetch:2
              4⤵
                PID:436
              • 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=2108,6094797801954339037,6396514866842815858,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2788 /prefetch:8
                4⤵
                  PID:1048
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=3308 /prefetch:1
                  4⤵
                    PID:1856
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=3276 /prefetch:1
                    4⤵
                      PID:216
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=4604 /prefetch:1
                      4⤵
                        PID:4692
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=4780 /prefetch:1
                        4⤵
                          PID:988
                        • 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=2108,6094797801954339037,6396514866842815858,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5588 /prefetch:8
                          4⤵
                            PID:2024
                          • 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=2108,6094797801954339037,6396514866842815858,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5588 /prefetch:8
                            4⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:968
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=5340 /prefetch:1
                            4⤵
                              PID:3612
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=3816 /prefetch:1
                              4⤵
                                PID:1232
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=4832 /prefetch:1
                                4⤵
                                  PID:2088
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=5056 /prefetch:1
                                  4⤵
                                    PID:2888
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,6094797801954339037,6396514866842815858,131072 --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=4452 /prefetch:2
                                    4⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:1516
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2120
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:1948

                                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

                                  f5b0bf4edca2187f7715ddd49777a1b2

                                  SHA1

                                  eb78099013d0894a11c48d496f48973585f0c7c0

                                  SHA256

                                  562016f9159ef363fcbe62ed13ee26052b31d4f67dc5ea6d60864a7d5dfa50a1

                                  SHA512

                                  1039b98cffd32ca4c9e37486b96e01b167d76b19dd8440a21da4932d677c463f4c5ce2260239e8337f59bd61ff3111905e23ab71d3ca5b20e7d2935fea7952c9

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

                                  Filesize

                                  152B

                                  MD5

                                  f4db60c9bb06ea5452df26771fa873ac

                                  SHA1

                                  c118183a1315a285606f81da05fc19367a2cdfe1

                                  SHA256

                                  f168242e74bfde18bacb9e18945a39bb447188eba916c7adf0f342ed8d82281e

                                  SHA512

                                  180ed98f9d5a14a22687a099c4a0ba6b586610f7b8b4c8de89f3b91713b07a2ef3726fcd318cb4e270b1745213b898037d29cca4b490d0c91833b797d69ac406

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

                                  Filesize

                                  672B

                                  MD5

                                  355c0bf769b0857b3003e982f5cf8d72

                                  SHA1

                                  7023cb5d6ae0f72927820d66d8b710dcf9adca3c

                                  SHA256

                                  b866c3f88dbf9e9ad2e4b8324d5c3e52972b695c9e503022e06a7e4e4a097199

                                  SHA512

                                  469370991c2186cb32f09ea6c55737fc832c3a8c33696fec7da8cd989e68c66a1fbcc8dea95d4f4523fc26581b43abfed85ebeb15741db447b3e1729df100a3d

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

                                  Filesize

                                  2KB

                                  MD5

                                  1258e0d27187d6e2e217d1b369ea53b6

                                  SHA1

                                  d56f3019269c8abd77b17bda1fcd8c30f38224f7

                                  SHA256

                                  f68b048e03b8a9d5e8c45dbb683fe17c0ea7303fd412b88b79f6642c7e272f55

                                  SHA512

                                  3574b205f650009ec1e5fef31f4a228294509409211740af178897de6d14cb157c57b3ebfd7d8e665b929b4543aa7bf8cbe69a8871eb5872ef4b89935bfee8a4

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

                                  Filesize

                                  6KB

                                  MD5

                                  99df501436527da3aaead1d95cb02b32

                                  SHA1

                                  393d7f87e6532e85c51d6bba4071d40a73269363

                                  SHA256

                                  3c13dda0ae063dc640a722338f3794f95b802cf4854cd9e78a205bba0199cbc8

                                  SHA512

                                  89690cdc0e059a52dc510180e1a2c7c371b9f7449c2f22c101ed9e8c631abd018abaec3113f0422fa72faf6eca51a140a30de84049b29cbbdd741e44cc89ffef

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

                                  Filesize

                                  7KB

                                  MD5

                                  d3244286a587fa6e3c8ccde32b6a56a9

                                  SHA1

                                  33025b6d3d9245b3b7eb0b5b3e24aea2da5cd8c2

                                  SHA256

                                  1ae95fbe9ba0aa74ac515eb317fc4d97a51707acaa262b85684b9735d5314cdf

                                  SHA512

                                  3716399e66549c786988fe4dd0a52a711a0f02d2b35e057d80baf271f66a164bea2d407b89b8e708356d5421a33010dfaecd54da09ff8ae1d0dcd431afeb5c82

                                • 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

                                  68c0dfc2c6309ea26980350d88f3bb8b

                                  SHA1

                                  98d8300e62910ea0cca81a5509bc4c0d7271f3a5

                                  SHA256

                                  8ef7a505842abffa13013513d2206197dc5058cea934089fba86fba13abd66ac

                                  SHA512

                                  fac2f395a7eddef4eea38217f76e75de627f4e1485d789fb8f27215aa70ffc492d9cff1632b289a560e6c1d22aba42a8179653b1aed49373661e00d1311f4ea4

                                • C:\Users\Admin\AppData\Local\Temp\nsfB910.tmp\StdUtils.dll

                                  Filesize

                                  100KB

                                  MD5

                                  c6a6e03f77c313b267498515488c5740

                                  SHA1

                                  3d49fc2784b9450962ed6b82b46e9c3c957d7c15

                                  SHA256

                                  b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

                                  SHA512

                                  9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

                                • C:\Users\Admin\AppData\Local\Temp\nsfB910.tmp\System.dll

                                  Filesize

                                  12KB

                                  MD5

                                  0d7ad4f45dc6f5aa87f606d0331c6901

                                  SHA1

                                  48df0911f0484cbe2a8cdd5362140b63c41ee457

                                  SHA256

                                  3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

                                  SHA512

                                  c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

                                • C:\Users\Admin\AppData\Local\Temp\nsfB910.tmp\WinShell.dll

                                  Filesize

                                  3KB

                                  MD5

                                  1cc7c37b7e0c8cd8bf04b6cc283e1e56

                                  SHA1

                                  0b9519763be6625bd5abce175dcc59c96d100d4c

                                  SHA256

                                  9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

                                  SHA512

                                  7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

                                • C:\Users\Admin\AppData\Local\Temp\nsfB910.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