Resubmissions

17-05-2024 13:59

240517-raqeyabc32 10

17-05-2024 13:54

240517-q7w4baah8t 10

Analysis

  • max time kernel
    21s
  • max time network
    23s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-05-2024 13:59

Errors

Reason
Machine shutdown

General

  • Target

    Synapse X Launcher.exe

  • Size

    3.1MB

  • MD5

    1a1fda92143e414b4d4153ab05dd1ce8

  • SHA1

    33ac2b2d228a1ec93b0ea70ffadb436933b9a1e5

  • SHA256

    f0160a1f7a39862e14063ac468957559656405f51d97ad56dc7cff9ad34da9f1

  • SHA512

    70a9a6948f98f3bdc2c7b461634098347bdf683dec36fa92bd1ac652f72daf7fa01f842cbb8331f26c9c5f76907604f75f7c45b746bcfe8f395b3864f998f391

  • SSDEEP

    49152:VvnI22SsaNYfdPBldt698dBcjHOaRJ6HbR3LoGddPkTHHB72eh2NT:VvI22SsaNYfdPBldt6+dBcjHOaRJ6Zd

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Windows Update

C2

skbidiooiilet-31205.portmap.host:31205

Mutex

7357b58d-e5d4-42be-8b74-db6eee6cde6d

Attributes
  • encryption_key

    6F721445F7E0B1CF58980D84A9D49F4458D4EFD9

  • install_name

    Update.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowsUpdate

  • subdirectory

    Windows Update

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 25 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:\Users\Admin\AppData\Local\Temp\Synapse X Launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\Synapse X Launcher.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2756
    • C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:2360
      • C:\Windows\System32\shutdown.exe
        "C:\Windows\System32\shutdown.exe" /s /t 0
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5240
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:452
    • 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,0x100,0x104,0xd8,0x108,0x7ffe202046f8,0x7ffe20204708,0x7ffe20204718
      2⤵
        PID:1920
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,13540738845654698626,2101277541916464398,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2156 /prefetch:2
        2⤵
          PID:4168
        • 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=2144,13540738845654698626,2101277541916464398,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2208 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4352
        • 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=2144,13540738845654698626,2101277541916464398,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2812 /prefetch:8
          2⤵
            PID:3220
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,13540738845654698626,2101277541916464398,131072 --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=3348 /prefetch:1
            2⤵
              PID:2980
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,13540738845654698626,2101277541916464398,131072 --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=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3376 /prefetch:1
              2⤵
                PID:2984
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,13540738845654698626,2101277541916464398,131072 --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=5064 /prefetch:1
                2⤵
                  PID:4436
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,13540738845654698626,2101277541916464398,131072 --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=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5092 /prefetch:1
                  2⤵
                    PID:1000
                  • 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=2144,13540738845654698626,2101277541916464398,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3604 /prefetch:8
                    2⤵
                      PID:2008
                    • 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=2144,13540738845654698626,2101277541916464398,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3604 /prefetch:8
                      2⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1532
                  • C:\Windows\System32\CompPkgSrv.exe
                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                    1⤵
                      PID:4752
                    • C:\Windows\System32\CompPkgSrv.exe
                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                      1⤵
                        PID:3616
                      • C:\Windows\system32\LogonUI.exe
                        "LogonUI.exe" /flags:0x4 /state0:0xa3976055 /state1:0x41c64e6d
                        1⤵
                        • Modifies data under HKEY_USERS
                        • Suspicious use of SetWindowsHookEx
                        PID:5304

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

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

                        Filesize

                        152B

                        MD5

                        8b167567021ccb1a9fdf073fa9112ef0

                        SHA1

                        3baf293fbfaa7c1e7cdacb5f2975737f4ef69898

                        SHA256

                        26764cedf35f118b55f30b3a36e0693f9f38290a5b2b6b8b83a00e990ae18513

                        SHA512

                        726098001ef1acf1dd154a658752fa27dea32bca8fbb66395c142cb666102e71632adbad1b7e2f717071cd3e3af3867471932a71707f2ae97b989f4be468ab54

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

                        Filesize

                        152B

                        MD5

                        537815e7cc5c694912ac0308147852e4

                        SHA1

                        2ccdd9d9dc637db5462fe8119c0df261146c363c

                        SHA256

                        b4b69d099507d88abdeff4835e06cc6711e1c47464c963d013cef0a278e52d4f

                        SHA512

                        63969a69af057235dbdecddc483ef5ce0058673179a3580c5aa12938c9501513cdb72dd703a06fa7d4fc08d074f17528283338c795334398497c771ecbd1350a

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

                        Filesize

                        5KB

                        MD5

                        e289655b8553aeb2e1eca7a19df6520e

                        SHA1

                        e6ac083ed3f12504cc35f6df6396f2fddf57b27c

                        SHA256

                        8e1a09fabcc1a9337fea6f789542f24220edd9a9aad1ccd17541a26495db9c61

                        SHA512

                        aad3a9f078bfc4efad53cd7f4a93c4fab84e8e92bebc1fc14616a39b53301d4d7f816e11012619d25890cb0f8528ca1be38c43bec8b6b12f470ce75f23ea68a3

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

                        Filesize

                        6KB

                        MD5

                        123dc1a854da2f0ff756662d80b80f60

                        SHA1

                        a2c3f8468ad896a31be591817483eadb3e0c73aa

                        SHA256

                        703d6a06dfa3efcdc9d6282c6b77219f39cdceb5c2df32161bffa00d2689e5f5

                        SHA512

                        edda03ae07a834959ed81bf74dedd5dd62bba557cbf26007afb3c299aa6aa0a7828998680d312db120eb243634816e8f4eebe28dd399da509caaf7dc5ba29877

                      • 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

                        face574c7fdf32e119f8f42e7365b31d

                        SHA1

                        cff1be4953a48c79b0fb5e3bc872ea1afdd3216c

                        SHA256

                        4f6b8e7e161224f15b08aa59b5a70228cb9e800154d322aaa35839f206871940

                        SHA512

                        8780453aec6dca910045a213be8b1f548ce319560f2783f604547d49fad70e224fc3434458ab459c0a57a3b5f2d0ef30d772f39e1a2ed434831c438c30a6196d

                      • C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe

                        Filesize

                        3.1MB

                        MD5

                        1a1fda92143e414b4d4153ab05dd1ce8

                        SHA1

                        33ac2b2d228a1ec93b0ea70ffadb436933b9a1e5

                        SHA256

                        f0160a1f7a39862e14063ac468957559656405f51d97ad56dc7cff9ad34da9f1

                        SHA512

                        70a9a6948f98f3bdc2c7b461634098347bdf683dec36fa92bd1ac652f72daf7fa01f842cbb8331f26c9c5f76907604f75f7c45b746bcfe8f395b3864f998f391

                      • \??\pipe\LOCAL\crashpad_452_GPJZNVNGVFRPPYSG

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • memory/3536-9-0x00007FFE24FC0000-0x00007FFE25A81000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3536-0-0x00007FFE24FC3000-0x00007FFE24FC5000-memory.dmp

                        Filesize

                        8KB

                      • memory/3536-2-0x00007FFE24FC0000-0x00007FFE25A81000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3536-1-0x0000000000690000-0x00000000009B4000-memory.dmp

                        Filesize

                        3.1MB

                      • memory/4784-16-0x000000001B430000-0x000000001B442000-memory.dmp

                        Filesize

                        72KB

                      • memory/4784-17-0x000000001BDC0000-0x000000001BDFC000-memory.dmp

                        Filesize

                        240KB

                      • memory/4784-13-0x000000001B4C0000-0x000000001B572000-memory.dmp

                        Filesize

                        712KB

                      • memory/4784-12-0x000000001B090000-0x000000001B0E0000-memory.dmp

                        Filesize

                        320KB

                      • memory/4784-11-0x00007FFE24FC0000-0x00007FFE25A81000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/4784-10-0x00007FFE24FC0000-0x00007FFE25A81000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/4784-75-0x00007FFE24FC0000-0x00007FFE25A81000-memory.dmp

                        Filesize

                        10.8MB