Analysis

  • max time kernel
    1796s
  • max time network
    1800s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-05-2024 01:11

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 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 3 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2432
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ff80ea33cb8,0x7ff80ea33cc8,0x7ff80ea33cd8
      2⤵
        PID:1448
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1928 /prefetch:2
        2⤵
          PID:4224
        • 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=1908,9494201040727012305,13887819583505177992,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2392 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1380
        • 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=1908,9494201040727012305,13887819583505177992,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2800 /prefetch:8
          2⤵
            PID:2376
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=3280 /prefetch:1
            2⤵
              PID:3140
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=3292 /prefetch:1
              2⤵
                PID:4916
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=4888 /prefetch:1
                2⤵
                  PID:1856
                • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5936 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4264
                • 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.UtilWin --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5928 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:3552
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=4688 /prefetch:1
                  2⤵
                    PID:1168
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5544 /prefetch:1
                    2⤵
                      PID:1924
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=4988 /prefetch:1
                      2⤵
                        PID:784
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1908,9494201040727012305,13887819583505177992,131072 --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=6164 /prefetch:1
                        2⤵
                          PID:2028
                        • 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=1908,9494201040727012305,13887819583505177992,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3068 /prefetch:8
                          2⤵
                          • NTFS ADS
                          • Suspicious behavior: EnumeratesProcesses
                          PID:852
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:2508
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:1216
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:4652
                            • C:\Windows\system32\OpenWith.exe
                              C:\Windows\system32\OpenWith.exe -Embedding
                              1⤵
                              • Modifies registry class
                              • Suspicious use of SetWindowsHookEx
                              PID:1084
                            • C:\Program Files\7-Zip\7zG.exe
                              "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\SynapseX.revamaped.V1.2\" -an -ai#7zMap27983:156:7zEvent18791
                              1⤵
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2164
                            • C:\Users\Admin\Downloads\SynapseX.revamaped.V1.2\SynapseX revamaped V1.2\Synapse X Launcher.exe
                              "C:\Users\Admin\Downloads\SynapseX.revamaped.V1.2\SynapseX revamaped V1.2\Synapse X Launcher.exe"
                              1⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2136
                              • 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:3760
                              • 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:2052
                                • 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:2256

                            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

                              a8e4bf11ed97b6b312e938ca216cf30e

                              SHA1

                              ff6b0b475e552dc08a2c81c9eb9230821d3c8290

                              SHA256

                              296db8c9361efb62e23be1935fd172cfe9fbcd89a424f34f347ec3cc5ca5afad

                              SHA512

                              ce1a05df2619af419ed3058dcbd7254c7159d333356d9f1d5e2591c19e17ab0ac9b6d3e625e36246ad187256bee75b7011370220ef127c4f1171879014d0dd76

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

                              Filesize

                              152B

                              MD5

                              23da8c216a7633c78c347cc80603cd99

                              SHA1

                              a378873c9d3484e0c57c1cb6c6895f34fee0ea61

                              SHA256

                              03dbdb03799f9e37c38f6d9d498ad09f7f0f9901430ff69d95aa26cae87504d3

                              SHA512

                              d34ae684e8462e3f2aba2260f2649dee01b4e2138b50283513c8c19c47faf039701854e1a9cbf21d7a20c28a6306f953b58ffb9144ead067f5f73650a759ff17

                            • 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

                              0655fc4bf1b08fea026e4d13b8792e3a

                              SHA1

                              381c5d4e94fac66f89de43b48040b57d38f15704

                              SHA256

                              4faef1298ef3de4bbc2200a9db612ce04516fd5e7aa3b76dc595433d8ae3c49c

                              SHA512

                              80b755d0d3d498514d60ccd121637a95b84908b507f9f6427a38b3e2dc3d053f795b939b5b80605bc0280b9145e4a5523d61a54f15108d1ce19e33a474a27487

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

                              Filesize

                              5KB

                              MD5

                              da03aaeabefd080555e0d02d88c0260b

                              SHA1

                              9684eb9654b453e34d5697c10c40aa3bbe8b1174

                              SHA256

                              c2789cf8b72f545d5eb9f9ab4af7faabec5c9287eea585e2294bb2399f16fd68

                              SHA512

                              56325546fbb9f555bff40ed8ada63a0665631fc619ebd2e88027203a8f64649802fb2e64635792cab125cb0cc15845f883405cfbfe2d90afdef9b42952ef21b5

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

                              Filesize

                              5KB

                              MD5

                              7e71992d33a25078ab144a0c4ca1775d

                              SHA1

                              230a52030fe0987ffcb5b86c0538293159d52475

                              SHA256

                              c674a2c72e7dd8730487c32672f625cc90c57e560bb5f03742d325f5c341b5c8

                              SHA512

                              18ea41770e51920a50e451f28790254b28fd34932a8aaf48422b31778fe8ad990a595eaf2fc578c06ab5f26ec4cb39fdc632eed4353f7bcf033d9ebd86841786

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

                              Filesize

                              16B

                              MD5

                              46295cac801e5d4857d09837238a6394

                              SHA1

                              44e0fa1b517dbf802b18faf0785eeea6ac51594b

                              SHA256

                              0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                              SHA512

                              8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

                              Filesize

                              16B

                              MD5

                              206702161f94c5cd39fadd03f4014d98

                              SHA1

                              bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                              SHA256

                              1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                              SHA512

                              0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

                              Filesize

                              11KB

                              MD5

                              58d6867518483d990457612768a67d24

                              SHA1

                              b76c444d3b1bd5bba6751d1002a323d9f2a58f97

                              SHA256

                              403aa81b501f0d4f25e0733680cf2caa582acc813440232aa60a92af18df07cc

                              SHA512

                              8c65c34945a8ee83b77c7c1078ec60380f2a5dda2e4ee26136cd047c58d34dbefb6c5d77928fe447e1640e7a8ab7e45f018a5df68a40e95093e7bfe2157a54dc

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

                              Filesize

                              11KB

                              MD5

                              3b33a7c0378009df08a018c96daa3cce

                              SHA1

                              efd9193c63a78e3c6a71990a143ef0a27db73464

                              SHA256

                              a12e3976dca1a7214fd49ca2ea02e8389baef8fcd4f547b7232c5a042a2bcc7a

                              SHA512

                              a8dd6addeff4c5f2312cad78c5b84950fa796309a269fe2c6c8266c17468d4ad1b528c5eaa8482aa678c065c9dda9a2149a963ee3adcd5703042d2a0c6f7a747

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

                              Filesize

                              12KB

                              MD5

                              b24197df31b1170aa5bd4704f607a526

                              SHA1

                              343f52675898a434be0f8451dbb0030de45f7c6e

                              SHA256

                              1d77208bf1c6158f59ed2996a491e9ce2c5cd250adff725346dbb6f5bded9486

                              SHA512

                              ef729eb207dfbabfc8174a6d03fb8d61827d90a44cd640d783a45cbd21e73452292499f5b1c97df2942276b3b99351215410f713f0e6b88c467183bcd2f32598

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

                              Filesize

                              12KB

                              MD5

                              6275e3ac5d421adb19c8377c58bd4948

                              SHA1

                              1c1e38d3015e5df261f389d51758ec3785e7996e

                              SHA256

                              a19412ca85ba1dada9212eb3f419fff154565306c46b88e48b0d55ecf6b99476

                              SHA512

                              07160d6160ecdac0b6a3fcd1ccad368a8c07b942c7e17fd08b7cc27cca5d12a412b17c7b0778e0eeed12f07909533af87c121cd546d362d11867ab330e1efdd7

                            • C:\Users\Admin\Downloads\SynapseX.revamaped.V1.2.rar:Zone.Identifier

                              Filesize

                              26B

                              MD5

                              fbccf14d504b7b2dbcb5a5bda75bd93b

                              SHA1

                              d59fc84cdd5217c6cf74785703655f78da6b582b

                              SHA256

                              eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913

                              SHA512

                              aa1d2b1ea3c9de3ccadb319d4e3e3276a2f27dd1a5244fe72de2b6f94083dddc762480482c5c2e53f803cd9e3973ddefc68966f974e124307b5043e654443b98

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

                              Filesize

                              3.1MB

                              MD5

                              1a1fda92143e414b4d4153ab05dd1ce8

                              SHA1

                              33ac2b2d228a1ec93b0ea70ffadb436933b9a1e5

                              SHA256

                              f0160a1f7a39862e14063ac468957559656405f51d97ad56dc7cff9ad34da9f1

                              SHA512

                              70a9a6948f98f3bdc2c7b461634098347bdf683dec36fa92bd1ac652f72daf7fa01f842cbb8331f26c9c5f76907604f75f7c45b746bcfe8f395b3864f998f391

                            • \??\pipe\LOCAL\crashpad_2432_KUUYCQZTDWRYZMCV

                              MD5

                              d41d8cd98f00b204e9800998ecf8427e

                              SHA1

                              da39a3ee5e6b4b0d3255bfef95601890afd80709

                              SHA256

                              e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                              SHA512

                              cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                            • memory/2052-311-0x0000000002700000-0x0000000002750000-memory.dmp

                              Filesize

                              320KB

                            • memory/2052-312-0x000000001B950000-0x000000001BA02000-memory.dmp

                              Filesize

                              712KB

                            • memory/2136-304-0x0000000000350000-0x0000000000674000-memory.dmp

                              Filesize

                              3.1MB