Analysis

  • max time kernel
    367s
  • max time network
    371s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 00:51

General

  • Target

    https://github.com/cfedss/Synapse-X-Revamped/releases/download/SynapseXRevamp1.2/SynapseX.revamaped.V1.2.rar

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
  • Executes dropped EXE 2 IoCs
  • 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 registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 21 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://github.com/cfedss/Synapse-X-Revamped/releases/download/SynapseXRevamp1.2/SynapseX.revamaped.V1.2.rar
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2944
    • 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,0x100,0x104,0xd8,0x108,0x7ff8f56546f8,0x7ff8f5654708,0x7ff8f5654718
      2⤵
        PID:5088
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2132 /prefetch:2
        2⤵
          PID:3684
        • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2284 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1704
        • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2672 /prefetch:8
          2⤵
            PID:4940
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=3284 /prefetch:1
            2⤵
              PID:2040
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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
              2⤵
                PID:2392
              • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5384 /prefetch:8
                2⤵
                  PID:5028
                • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5384 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4504
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=5452 /prefetch:1
                  2⤵
                    PID:4744
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5468 /prefetch:1
                    2⤵
                      PID:4784
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3420 /prefetch:1
                      2⤵
                        PID:4788
                      • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=4120 /prefetch:8
                        2⤵
                          PID:1832
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=5936 /prefetch:1
                          2⤵
                            PID:4508
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=6168 /prefetch:1
                            2⤵
                              PID:3616
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,3783731718406782993,16313688492618860353,131072 --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=6640 /prefetch:2
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:6060
                            • 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=2124,3783731718406782993,16313688492618860353,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5236 /prefetch:8
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:5064
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:2156
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:3116
                              • C:\Windows\system32\OpenWith.exe
                                C:\Windows\system32\OpenWith.exe -Embedding
                                1⤵
                                • Modifies registry class
                                • Suspicious behavior: GetForegroundWindowSpam
                                • Suspicious use of SetWindowsHookEx
                                PID:5184
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:5188
                                • C:\Program Files\7-Zip\7zG.exe
                                  "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\" -an -ai#7zMap6775:108:7zEvent16456
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:5404
                                • C:\Users\Admin\Downloads\SynapseX revamaped V1.2\Synapse X Launcher.exe
                                  "C:\Users\Admin\Downloads\SynapseX revamaped V1.2\Synapse X Launcher.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:4500
                                  • 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:5376
                                  • C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe
                                    "C:\Users\Admin\AppData\Roaming\Windows Update\Update.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:5400
                                    • 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:5656
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
                                  1⤵
                                    PID:756

                                  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

                                    4f7152bc5a1a715ef481e37d1c791959

                                    SHA1

                                    c8a1ed674c62ae4f45519f90a8cc5a81eff3a6d7

                                    SHA256

                                    704dd4f98d8ca34ec421f23ba1891b178c23c14b3301e4655efc5c02d356c2bc

                                    SHA512

                                    2e6b02ca35d76a655a17a5f3e9dbd8d7517c7dae24f0095c7350eb9e7bdf9e1256a7009aa8878f96c89d1ea4fe5323a41f72b8c551806dda62880d7ff231ff5c

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

                                    Filesize

                                    152B

                                    MD5

                                    ea98e583ad99df195d29aa066204ab56

                                    SHA1

                                    f89398664af0179641aa0138b337097b617cb2db

                                    SHA256

                                    a7abb51435909fa2d75c6f2ff5c69a93d4a0ab276ed579e7d8733b2a63ffbee6

                                    SHA512

                                    e109be3466e653e5d310b3e402e1626298b09205d223722a82344dd78504f3c33e1e24e8402a02f38cd2c9c50d96a303ce4846bea5a583423937ab018cd5782f

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

                                    Filesize

                                    265B

                                    MD5

                                    f5cd008cf465804d0e6f39a8d81f9a2d

                                    SHA1

                                    6b2907356472ed4a719e5675cc08969f30adc855

                                    SHA256

                                    fcea95cc39dc6c2a925f5aed739dbedaa405ee4ce127f535fcf1c751b2b8fb5d

                                    SHA512

                                    dc97034546a4c94bdaa6f644b5cfd1e477209de9a03a5b02a360c254a406c1d647d6f90860f385e27387b35631c41f0886cb543ede9116436941b9af6cd3285d

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

                                    Filesize

                                    5KB

                                    MD5

                                    c2f752326384cc3b1b6afee707714dad

                                    SHA1

                                    dd5455b754ea823392b69d4e9970b82bd6cfad48

                                    SHA256

                                    6f30e77dfc301162cc70a47e7a697cf93f1b4eb7f802c74617b315e203923f2c

                                    SHA512

                                    c4a7f354b2e7c6156090f2592b4393cec0c8a670513df85494293d9a6435e7ba85627e4b38c3ba40687510465569eb26c04da8df32b7f1022acbfcdd46c2fb51

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

                                    Filesize

                                    6KB

                                    MD5

                                    bcfc95dd69864c017c3667a51135b340

                                    SHA1

                                    c77fef8932f107685a3dd9477e51d6d8144c8edf

                                    SHA256

                                    3ab724313beda7b4d91d33a44462b440b19d88b87cdc7ad994d6d355da1ef4ed

                                    SHA512

                                    86743ff6a5f45a46b787f840559b4b84c3640a636e0ee5ed8e126e22574f607809dd07bdef828ce90b65a1144b9407f0bbbf4aa4462d538d5f56f290573c8849

                                  • 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

                                    8dca34da0c42412901758dcdc472ad81

                                    SHA1

                                    c683c6bfa36e9575e91835f13b9432d9852537bd

                                    SHA256

                                    45d89e692f06335fc8f3c8fcc925104b80405164dfb439974f268fb258d42823

                                    SHA512

                                    ab28dee7aef97f43dee594cd3d4ae29f8252313560875f7b4a7595ac86d234f7e3e96e6273cf25e780f3dd633a13e73ec241c599f689075132d51dfc36fbf283

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

                                    Filesize

                                    12KB

                                    MD5

                                    23811da2150d9400e2c7d321e57cbb38

                                    SHA1

                                    bdf28c3793050753df17457e3630144a0df4da2d

                                    SHA256

                                    122bba5324c3efd64e0c1eb5f09f8547651fa4d4ec6c4d1d6279b2c6505b62d1

                                    SHA512

                                    f8318a35d3d4e8c2853bc4a2d243799a6ab8ca8a97c894e9f66e24ea82142dc914a8c0a615b64912d19d6cb9a9651ef61b411da337fa1a43cb55aa716d057b96

                                  • C:\Users\Admin\Downloads\SynapseX revamaped V1.2\Synapse X Launcher.exe

                                    Filesize

                                    3.1MB

                                    MD5

                                    1a1fda92143e414b4d4153ab05dd1ce8

                                    SHA1

                                    33ac2b2d228a1ec93b0ea70ffadb436933b9a1e5

                                    SHA256

                                    f0160a1f7a39862e14063ac468957559656405f51d97ad56dc7cff9ad34da9f1

                                    SHA512

                                    70a9a6948f98f3bdc2c7b461634098347bdf683dec36fa92bd1ac652f72daf7fa01f842cbb8331f26c9c5f76907604f75f7c45b746bcfe8f395b3864f998f391

                                  • \??\pipe\LOCAL\crashpad_2944_SMYKHRKGLWRAUHQL

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • memory/4500-196-0x0000000000050000-0x0000000000374000-memory.dmp

                                    Filesize

                                    3.1MB

                                  • memory/5400-203-0x000000001B7F0000-0x000000001B840000-memory.dmp

                                    Filesize

                                    320KB

                                  • memory/5400-204-0x000000001BE70000-0x000000001BF22000-memory.dmp

                                    Filesize

                                    712KB