Analysis

  • max time kernel
    1075s
  • max time network
    1799s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 19:58

General

  • Target

    Eggpy.exe

  • Size

    3.3MB

  • MD5

    311933ce408d4d388840c403a42324a8

  • SHA1

    d8087493d05a664639ec0855bb636789be0bae53

  • SHA256

    358d36db4fe4df0ae13317555061a4dc3033254f81f53fe78eb59ed84d3483dd

  • SHA512

    965957a8e15ebd5ced85e827c9888ae69e2be563c0488b64d7c59eccf686330171a475beeae36140c271b06072c5675fe90ff9ef011cba396edd25df3928656b

  • SSDEEP

    49152:ovKgo2QSaNpzyPllgamb0CZof/JaG83ear1LoGdHh7THHB72eh2NT/:ovjo2QSaNpzyPllgamYCZof/JE3VXw

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

AWZ3153-54894.portmap.host:54894

AWZ3153-54894.portmap.host:4782

Mutex

504548b2-3cf4-4efe-90ce-156d3776854c

Attributes
  • encryption_key

    5F9B0D3C7007E834C112F6078ABD8C2684830A3F

  • install_name

    cmdline.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svchost

  • subdirectory

    cmd

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

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

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 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:\Users\Admin\AppData\Local\Temp\Eggpy.exe
    "C:\Users\Admin\AppData\Local\Temp\Eggpy.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Windows\system32\schtasks.exe
      "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\cmd\cmdline.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2852
    • C:\Users\Admin\AppData\Roaming\cmd\cmdline.exe
      "C:\Users\Admin\AppData\Roaming\cmd\cmdline.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\cmd\cmdline.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2920
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef1c49758,0x7fef1c49768,0x7fef1c49778
      2⤵
        PID:2076
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1160 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:2
        2⤵
          PID:2160
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1508 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:8
          2⤵
            PID:2524
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1604 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:8
            2⤵
              PID:1792
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2324 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:1
              2⤵
                PID:1576
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2356 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:1
                2⤵
                  PID:2224
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1400 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:2
                  2⤵
                    PID:1620
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1412 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:1
                    2⤵
                      PID:1856
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3656 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:8
                      2⤵
                        PID:2012
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=1548 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:1
                        2⤵
                          PID:828
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=672 --field-trial-handle=1196,i,395407298043493506,4393077506336152483,131072 /prefetch:8
                          2⤵
                            PID:2384
                        • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                          "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                          1⤵
                            PID:772

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

                            Filesize

                            16B

                            MD5

                            aefd77f47fb84fae5ea194496b44c67a

                            SHA1

                            dcfbb6a5b8d05662c4858664f81693bb7f803b82

                            SHA256

                            4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

                            SHA512

                            b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                            Filesize

                            264KB

                            MD5

                            f50f89a0a91564d0b8a211f8921aa7de

                            SHA1

                            112403a17dd69d5b9018b8cede023cb3b54eab7d

                            SHA256

                            b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                            SHA512

                            bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                            Filesize

                            633B

                            MD5

                            ffaa4597a34295f7019b0c2b3cb126d8

                            SHA1

                            78c1927ddcc6d156c3936c3580dd9bf1c061fc99

                            SHA256

                            73661056b9a3e040e17c7b209750520a9aafb4e557fb737aee20c8a69d889361

                            SHA512

                            ad07db7689816dacaa88c03682fb4fab4410b50350402e4fcb86bbbf7d976667d71b9258346f9fe4531c636a40a4495a8b5e3b70fe3c0d6871d901065cd17a32

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                            Filesize

                            363B

                            MD5

                            967abb7afef56045d83a0e2cdf6853cb

                            SHA1

                            7d1770eecb2aac70eeec53046cf75de0598ac7dd

                            SHA256

                            db409fcac1ff771edc3727e7a467fbe5472fa51277964d4da249b41250aae765

                            SHA512

                            224b46e6221df5ba338eeda6b301bc2360562d48d48c47b2ab79bab28fef1dc4cc855e2f1cbc4885074d88fe6685dab5369a26a5aec2c9b485b5ef87c50201cc

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                            Filesize

                            5KB

                            MD5

                            66b25803b3f76b7ee612c373cc1be914

                            SHA1

                            d41e6815e3cba64c814c893d899e3e25e2b0def9

                            SHA256

                            44a7dc4431aae9ffec9452d3f94de90876c08cd651a1e1dda060a42900a88cf1

                            SHA512

                            1e40f565ed199f1d26417f08fb2684e34c25194084c847c87790ed351b304e67b2863e78a3930d4814783e96ba4b2c364fb9e32ba705b8edb8536794ce6e528f

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                            Filesize

                            5KB

                            MD5

                            b9276ef48617910b57232235aea30c9f

                            SHA1

                            546637625066632f586477a5959469b49f05f092

                            SHA256

                            bbedf47437b5875cb53cd07329c3a55410bb68a6895969a6e0b503767cee7fe4

                            SHA512

                            1d049b3f6a2e77a5ac1c0ce9a789be287a3ec71de2086bb05602c9a9bb21470791bc2b5d4ec899a10ed0cac5a3a1a9d16384d6d72974ad6e641d24979c2894ea

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                            Filesize

                            5KB

                            MD5

                            f7bbd4e1dea833b6dd3684b83bb304bb

                            SHA1

                            12e180232ef5f33aaaafa59ece52af55317e6478

                            SHA256

                            da21e3129ed8c29da207dd7c99af43e1d10e0b08005105e5926d7a9ba7830b30

                            SHA512

                            27a995f4e74312bd1c4fbf462c8e83c1714a338bb1447b92c6e484a650f8385e8b433eb15d744bd9b0edfba79d8850f19b29d834c3abf88ef8b3118cb39c93fc

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

                            Filesize

                            16B

                            MD5

                            18e723571b00fb1694a3bad6c78e4054

                            SHA1

                            afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                            SHA256

                            8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                            SHA512

                            43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                          • C:\Users\Admin\AppData\Local\Temp\CabD8A5.tmp

                            Filesize

                            70KB

                            MD5

                            49aebf8cbd62d92ac215b2923fb1b9f5

                            SHA1

                            1723be06719828dda65ad804298d0431f6aff976

                            SHA256

                            b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

                            SHA512

                            bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

                          • C:\Users\Admin\AppData\Local\Temp\TarD8B8.tmp

                            Filesize

                            181KB

                            MD5

                            4ea6026cf93ec6338144661bf1202cd1

                            SHA1

                            a1dec9044f750ad887935a01430bf49322fbdcb7

                            SHA256

                            8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

                            SHA512

                            6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

                          • C:\Users\Admin\AppData\Roaming\cmd\cmdline.exe

                            Filesize

                            3.3MB

                            MD5

                            311933ce408d4d388840c403a42324a8

                            SHA1

                            d8087493d05a664639ec0855bb636789be0bae53

                            SHA256

                            358d36db4fe4df0ae13317555061a4dc3033254f81f53fe78eb59ed84d3483dd

                            SHA512

                            965957a8e15ebd5ced85e827c9888ae69e2be563c0488b64d7c59eccf686330171a475beeae36140c271b06072c5675fe90ff9ef011cba396edd25df3928656b

                          • memory/2668-11-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2668-62-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2668-10-0x0000000000D30000-0x0000000001084000-memory.dmp

                            Filesize

                            3.3MB

                          • memory/2668-9-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2704-8-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2704-0-0x000007FEF52E3000-0x000007FEF52E4000-memory.dmp

                            Filesize

                            4KB

                          • memory/2704-2-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2704-1-0x0000000001340000-0x0000000001694000-memory.dmp

                            Filesize

                            3.3MB