Analysis

  • max time kernel
    40s
  • max time network
    42s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2024, 03:04

General

  • Target

    https://gofile.io/d/PO790L

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

192.168.31.99:4782

2001:4bc9:1f98:a4e::676:4782

255.255.255.0:4782

fe80::cabf:4cff:fe84:9572%17:4782

Mutex

1f65a787-81b8-4955-95e4-b7751e10cd50

Attributes
  • encryption_key

    A0B82A50BBC49EC084E3E53A9E34DF58BD7050B9

  • install_name

    Neverlose Loader.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://gofile.io/d/PO790L
    1⤵
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4392
    • 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,0x100,0x104,0xd8,0x108,0x7fffe9e246f8,0x7fffe9e24708,0x7fffe9e24718
      2⤵
        PID:3868
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2116 /prefetch:2
        2⤵
          PID:872
        • 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=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2184 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4924
        • 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=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2916 /prefetch:8
          2⤵
            PID:2620
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --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=3352 /prefetch:1
            2⤵
              PID:3216
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --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=3360 /prefetch:1
              2⤵
                PID:4668
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --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=4680 /prefetch:1
                2⤵
                  PID:4004
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --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=4892 /prefetch:1
                  2⤵
                    PID:4492
                  • 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=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5596 /prefetch:8
                    2⤵
                      PID:2996
                    • 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=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5596 /prefetch:8
                      2⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1476
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5236 /prefetch:8
                      2⤵
                        PID:2504
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --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=5668 /prefetch:1
                        2⤵
                          PID:640
                        • 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.UtilReadIcon --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4780 /prefetch:8
                          2⤵
                            PID:2176
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=2080,634024266991611367,17249122236904472614,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3584 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:3584
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:3616
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:2368
                            • C:\Windows\System32\rundll32.exe
                              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                              1⤵
                                PID:4372
                              • C:\Users\Admin\Desktop\Neverlose Loader.exe
                                "C:\Users\Admin\Desktop\Neverlose Loader.exe"
                                1⤵
                                • Executes dropped EXE
                                • NTFS ADS
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1512
                                • C:\Windows\SYSTEM32\schtasks.exe
                                  "schtasks" /create /tn "Java Updater" /sc ONLOGON /tr "C:\Users\Admin\Desktop\Neverlose Loader.exe" /rl HIGHEST /f
                                  2⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:4836
                                • C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe
                                  "C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1996
                              • C:\Users\Admin\Desktop\Neverlose Loader.exe
                                "C:\Users\Admin\Desktop\Neverlose Loader.exe"
                                1⤵
                                • Executes dropped EXE
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1384
                              • C:\Users\Admin\Desktop\Neverlose Loader.exe
                                "C:\Users\Admin\Desktop\Neverlose Loader.exe"
                                1⤵
                                • Executes dropped EXE
                                • NTFS ADS
                                • Suspicious use of AdjustPrivilegeToken
                                PID:3120
                                • C:\Windows\SYSTEM32\schtasks.exe
                                  "schtasks" /create /tn "Java Updater" /sc ONLOGON /tr "C:\Users\Admin\Desktop\Neverlose Loader.exe" /rl HIGHEST /f
                                  2⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:1060
                                • C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe
                                  "C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of SetWindowsHookEx
                                  PID:3052
                                  • C:\Windows\SYSTEM32\schtasks.exe
                                    "schtasks" /create /tn "Java Updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe" /rl HIGHEST /f
                                    3⤵
                                    • Scheduled Task/Job: Scheduled Task
                                    PID:3884

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Neverlose Loader.exe.log

                                Filesize

                                1KB

                                MD5

                                baf55b95da4a601229647f25dad12878

                                SHA1

                                abc16954ebfd213733c4493fc1910164d825cac8

                                SHA256

                                ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

                                SHA512

                                24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

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

                                Filesize

                                152B

                                MD5

                                d7cb450b1315c63b1d5d89d98ba22da5

                                SHA1

                                694005cd9e1a4c54e0b83d0598a8a0c089df1556

                                SHA256

                                38355fd694faf1223518e40bac1996bdceaf44191214b0a23c4334d5fb07d031

                                SHA512

                                df04d4f4b77bae447a940b28aeac345b21b299d8d26e28ecbb3c1c9e9a0e07c551e412d545c7dbb147a92c12bad7ae49ac35af021c34b88e2c6c5f7a0b65f6a8

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

                                Filesize

                                152B

                                MD5

                                37f660dd4b6ddf23bc37f5c823d1c33a

                                SHA1

                                1c35538aa307a3e09d15519df6ace99674ae428b

                                SHA256

                                4e2510a1d5a50a94fe4ce0f74932ab780758a8cbdc6d176a9ce8ab92309f26f8

                                SHA512

                                807b8b8dc9109b6f78fc63655450bf12b9a006ff63e8f29ade8899d45fdf4a6c068c5c46a3efbc4232b9e1e35d6494f00ded5cdb3e235c8a25023bfbd823992d

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

                                Filesize

                                288B

                                MD5

                                f4f07100f7ee08309839bbf171b99820

                                SHA1

                                c003750d82baf3b7d4d174cab8eb651c2483faa5

                                SHA256

                                3ca739144cf26593fabc8b34c9f7bf0427a7fd98edcadc6c1944a6898e310591

                                SHA512

                                6132fb91eede6a2a8783a058c9631af15441f423d1d18c458e087a43b8e9092932633c5e48f28bf817470b4ef293e27671fc96558ee44ce14696150f6a5d380d

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

                                Filesize

                                391B

                                MD5

                                381fba617977ce1a959b3bced20fd06e

                                SHA1

                                9b5e306c2323c7a8fe2bac27844bb5355c953077

                                SHA256

                                17042af08022e517702bcce064f7358c80a55421ab1c5172c08da567439c6f39

                                SHA512

                                8ec8f29e3b3590f3ab71a487c3529cad4562ea412c34bd4fdb97d6d88395826cc853c802039f99adeb6fb1756ec484d4e4a7c9db23f98b09609fb58a95eb6620

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

                                Filesize

                                6KB

                                MD5

                                5a8b9901e0e427c5ccc3c03513e18870

                                SHA1

                                813bb6e119f2b6cf7693f6a79f41d38c8ddb6464

                                SHA256

                                d5a460d3b10ff8da22db08ba69ecc4c3c0d9539660a1b5d383364e8777925da3

                                SHA512

                                559c7e31af030a34d4d7d3216aa562b1c944b4f8bbd45e8d3ec829191d2abd849f7ba56ac45b7ef62bdddc54a92c20573cebc9dca73e0e2bc0f15b1b34d6406d

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

                                Filesize

                                6KB

                                MD5

                                c26103b42419da7c36daf297e2f93f7b

                                SHA1

                                536dc94fa07526fb3bed02bc5193a35b8d20485f

                                SHA256

                                4ae7d6463004427cd0b67d3e4fbbbd1b40be33dfe9a996923682f456583dec63

                                SHA512

                                7f55ba30b848bd5eb215929728c2ef943cffd9606fb7208c14278be0c2e79a7a7095d220d280218cff5e42bdaf52568b3da1f2dbfeeda9d7699f1370cc1a70c9

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

                                Filesize

                                5KB

                                MD5

                                5f45fb520fdedf78c6484324e124fe4c

                                SHA1

                                6a200b605504de60c736c065eeb0325a0a817b08

                                SHA256

                                88293035ea385ae0d39520d892480eda7c531eeb22e0672026d048c23e6342d9

                                SHA512

                                74675a822e843f1669f26937987df9658cff3159af6e93f56e7c8e488395a93e59acfd955ad42ceeedcb307b80e708167629dac2f2414b1e36fc81be99640466

                              • 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

                                bb02ac691df0727d5f8bc90b1ede508b

                                SHA1

                                c7cc7c329e9917205c7b80116c62c1fc3def5027

                                SHA256

                                25e6cbd341c9c49bac3e4dd2b96a3b71a3fc87752476a1b107fb7fed92ee9c9b

                                SHA512

                                5323d32b11441a0346ac8f06696971c8e3c8897bfb6ebd68a3b049e792a4a098b51b20f466d255da4f34e5f12d5d0781e32b2cbf17532a74ae16909c08446084

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

                                Filesize

                                11KB

                                MD5

                                5f4a17057657646cc4439cc1e6227d61

                                SHA1

                                359df5dbbb90a575efce8ccc781d6eabf82db3f0

                                SHA256

                                94162d6b46f3ce5d6bae491f839854a47fb592f0a2d517c5b1716b570aa71efc

                                SHA512

                                32dd2dae7c8f00fdf7070e483767e7c919b64e33d221875aad105c524147980cbdf146d87ab4cc3819fa3e9cdefabd1c2d51600503857e8bcdc41861d810a1bd

                              • C:\Users\Admin\Downloads\Unconfirmed 504816.crdownload

                                Filesize

                                502KB

                                MD5

                                f5b150d54a0ba2d902974cbfd6249c56

                                SHA1

                                92e28c3d9ff4392eed379d816dda6939113830bd

                                SHA256

                                1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80

                                SHA512

                                57aade72ad0b45fdf1a6fdfa99e0d72165a9d3a77efd48c0fb5976ab605f6a395ab9817ea45f1f63994c772529b6b0c6448fa446d68c9859235ce43bf22cb688

                              • memory/1512-196-0x0000000000920000-0x00000000009A4000-memory.dmp

                                Filesize

                                528KB

                              • memory/3052-211-0x000000001BC30000-0x000000001BC80000-memory.dmp

                                Filesize

                                320KB

                              • memory/3052-212-0x000000001BD40000-0x000000001BDF2000-memory.dmp

                                Filesize

                                712KB

                              • memory/3052-213-0x000000001C730000-0x000000001CC58000-memory.dmp

                                Filesize

                                5.2MB