Analysis

  • max time kernel
    110s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 00:48

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 3 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
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 24 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:2360
    • 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,0x100,0x104,0xd8,0x108,0x7ffb533746f8,0x7ffb53374708,0x7ffb53374718
      2⤵
        PID:2236
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2064 /prefetch:2
        2⤵
          PID:4124
        • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2124 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:712
        • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2572 /prefetch:8
          2⤵
            PID:3968
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=3336 /prefetch:1
            2⤵
              PID:3808
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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:4920
              • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5428 /prefetch:8
                2⤵
                  PID:3532
                • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5428 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1644
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=5480 /prefetch:1
                  2⤵
                    PID:3068
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=5504 /prefetch:1
                    2⤵
                      PID:876
                    • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=4868 /prefetch:8
                      2⤵
                        PID:232
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=5076 /prefetch:1
                        2⤵
                          PID:920
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=4712 /prefetch:1
                          2⤵
                            PID:1560
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2012,3604960536793341563,11348078668331786705,131072 --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=6196 /prefetch:1
                            2⤵
                              PID:4852
                            • 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=2012,3604960536793341563,11348078668331786705,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2284 /prefetch:8
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:5800
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:5012
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2088
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:1588
                                • C:\Program Files\7-Zip\7zG.exe
                                  "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Desktop\" -an -ai#7zMap8672:104:7zEvent13200
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1012
                                • C:\Users\Admin\Desktop\SynapseX revamaped V1.2\Synapse X Launcher.exe
                                  "C:\Users\Admin\Desktop\SynapseX revamaped V1.2\Synapse X Launcher.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:5756
                                  • 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:5872
                                  • 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:5892
                                    • 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:5924
                                • C:\Users\Admin\Desktop\SynapseX revamaped V1.2\Synapse X Launcher.exe
                                  "C:\Users\Admin\Desktop\SynapseX revamaped V1.2\Synapse X Launcher.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:6120

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Synapse X Launcher.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

                                  f61fa5143fe872d1d8f1e9f8dc6544f9

                                  SHA1

                                  df44bab94d7388fb38c63085ec4db80cfc5eb009

                                  SHA256

                                  284a24b5b40860240db00ef3ae6a33c9fa8349ab5490a634e27b2c6e9a191c64

                                  SHA512

                                  971000784a6518bb39c5cf043292c7ab659162275470f5f6b632ea91a6bcae83bc80517ceb983dd5abfe8fb4e157344cb65c27e609a879eec00b33c5fad563a6

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

                                  Filesize

                                  152B

                                  MD5

                                  87f7abeb82600e1e640b843ad50fe0a1

                                  SHA1

                                  045bbada3f23fc59941bf7d0210fb160cb78ae87

                                  SHA256

                                  b35d6906050d90a81d23646f86c20a8f5d42f058ffc6436fb0a2b8bd71ee1262

                                  SHA512

                                  ea8e7f24ab823ad710ce079c86c40aa957353a00d2775732c23e31be88a10d212e974c4691279aa86016c4660f5795febf739a15207833df6ed964a9ed99d618

                                • 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

                                  6KB

                                  MD5

                                  34aa91a4eb5402f09263746ebf51d14c

                                  SHA1

                                  6057f25866cd8746ef6a48d17315bb5802580f5d

                                  SHA256

                                  a0a649f8926429fc8b1ae17c29bac49251f9d307fd8cb604281b7c404e3f9690

                                  SHA512

                                  595270e76e886d2f9bcd19b833495a4b5cf62fd15168e5fc8e0e14f711c15a7c528b5be9c558573349af526b855a5ccb7d4951dc13e262629b57486a94db1020

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

                                  Filesize

                                  6KB

                                  MD5

                                  212cfd532f9bec3e2cb02e030d5aabf2

                                  SHA1

                                  0dc092b0daad4f44c9ef5b8ca7ff7e850d12143b

                                  SHA256

                                  47fb539b20a9ab3cdbe12351be0556c60141a436a8905e5d085b9b3763d226cb

                                  SHA512

                                  def36093a41a24ba9a4ed591dce8630cb1d3312c2f5399e0600cb5a34ddd401408daeffeca2b5761257269218453787ad9af6a35eb4aa2e91bd78283c2d8dcba

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\c92a3525-e92f-4af1-a22d-d28e94dde122.tmp

                                  Filesize

                                  5KB

                                  MD5

                                  76fd7b967657d2837136a3328b0a0b95

                                  SHA1

                                  7404e4956a3902f6003d94f6800a2f08f2938160

                                  SHA256

                                  f42ceee25521b7280de20c0abedea7018744fe90fc850052d3392e7b7ef51ba5

                                  SHA512

                                  e6c223a44f5cc6ec5633340675909207d4a35eae8acfe500c9432ee726647a3a6057a5ebecdc428781b6974b5b2735e4e04ed84d243b02c8a2ae3bb4f9bd33c4

                                • 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

                                  10b085adcee560fdad2360ab70dc4ab8

                                  SHA1

                                  e016607dba817e8afd6cb49f3ebf6c694ba554cb

                                  SHA256

                                  dacd8a773339dff7694c72bed8030e629b330eb903fd25d1167a60de5b8e4e30

                                  SHA512

                                  04fdc61978e5c11d27760b360a8f031ffe543550df0c117df64dbf430a4d3c98d270cca7baf713b0fc2f1c4a35bc981fa9d5d5bec53b1d13648c013ba538e624

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

                                  Filesize

                                  11KB

                                  MD5

                                  a7f691c57ca8c458be95fe68427cd5b7

                                  SHA1

                                  2f6323ff7884ed5ea8145689a0ee2ef486dfcd52

                                  SHA256

                                  a40fb8ba98315acbcf94664329e5db5c571a1d3b4111adf59410e131c6854819

                                  SHA512

                                  88e6d0399eada6f59942006133228c8bd1c8a548ee34f06de88d5f0037aa18c7dc29c8b6953a96d3f23ec0932a1a026d1e45e78d8c73b3ef277234f911ea9a3c

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

                                  Filesize

                                  3.1MB

                                  MD5

                                  1a1fda92143e414b4d4153ab05dd1ce8

                                  SHA1

                                  33ac2b2d228a1ec93b0ea70ffadb436933b9a1e5

                                  SHA256

                                  f0160a1f7a39862e14063ac468957559656405f51d97ad56dc7cff9ad34da9f1

                                  SHA512

                                  70a9a6948f98f3bdc2c7b461634098347bdf683dec36fa92bd1ac652f72daf7fa01f842cbb8331f26c9c5f76907604f75f7c45b746bcfe8f395b3864f998f391

                                • \??\pipe\LOCAL\crashpad_2360_LMIUFTMDKLYLGATY

                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                • memory/5756-225-0x0000000000C30000-0x0000000000F54000-memory.dmp

                                  Filesize

                                  3.1MB

                                • memory/5892-232-0x0000000003350000-0x00000000033A0000-memory.dmp

                                  Filesize

                                  320KB

                                • memory/5892-233-0x000000001C3C0000-0x000000001C472000-memory.dmp

                                  Filesize

                                  712KB