Analysis

  • max time kernel
    37s
  • max time network
    38s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    29-12-2024 22:04

General

  • Target

    Panel Ejecutador MTA 3.14.zip

  • Size

    1.1MB

  • MD5

    d345c2eb24b0d3806865fda604ad1cc8

  • SHA1

    6b813317f6108f2c242babda58097070503df242

  • SHA256

    9261f3eefa0aef107e865784d8b8b62d4e7213056dfe535893920a344fa0d908

  • SHA512

    76c941b833ffcef6da121c2e2735952ed81cbf7c6a6260a227040d37abf0adaa41461045c69710331345d52d95aac89ddf0a256ebc85fbdb2ed703106999ab74

  • SSDEEP

    24576:ioRau4l48JTUIlfSsqFDxCs3+UgQYuX370FBZa:ioRUv5UIYsqOs3+UPY234m

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

azxq0ap.localto.net:3425

Mutex

e51e2b65-e963-4051-9736-67d57ed46798

Attributes
  • encryption_key

    AEA258EF65BF1786F0F767C0BE2497ECC304C46F

  • install_name

    WindowsUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowsUpdate

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 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 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 61 IoCs
  • Suspicious use of FindShellTrayWindow 28 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:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Panel Ejecutador MTA 3.14.zip"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4260
  • C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe
    "C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4328
    • C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5080
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2192
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Drops file in Windows directory
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2264
    • 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:4 --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=123.0.6312.123 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7fffa648cc40,0x7fffa648cc4c,0x7fffa648cc58
      2⤵
        PID:3380
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1944,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=1940 /prefetch:2
        2⤵
          PID:3844
        • 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 --no-appcompat-clear --field-trial-handle=2184,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=2196 /prefetch:3
          2⤵
            PID:4820
          • 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=service --no-appcompat-clear --field-trial-handle=2260,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=2276 /prefetch:8
            2⤵
              PID:1544
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3104,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=3136 /prefetch:1
              2⤵
                PID:664
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3124,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=3184 /prefetch:1
                2⤵
                  PID:1548
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4488,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=4540 /prefetch:1
                  2⤵
                    PID:4864
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4800,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=4808 /prefetch:8
                    2⤵
                      PID:2540
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4812,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=4808 /prefetch:8
                      2⤵
                        PID:2020
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --field-trial-handle=4816,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=3172 /prefetch:1
                        2⤵
                          PID:3204
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --field-trial-handle=4472,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=4656 /prefetch:1
                          2⤵
                            PID:4696
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --field-trial-handle=4636,i,17830836831691088802,7083018059902835803,262144 --variations-seed-version=20241210-050121.637000 --mojo-platform-channel-handle=4832 /prefetch:1
                            2⤵
                              PID:1432
                          • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                            1⤵
                              PID:4516
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                              1⤵
                                PID:2828

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\56633b14-b5a2-47f7-abb5-8b2fd8e67dae.tmp

                                Filesize

                                8KB

                                MD5

                                5d67d6c53ca3043308c88bb815f6ef64

                                SHA1

                                08fe0e7a6a6bff5ee27f1eefe62752d474775354

                                SHA256

                                af8363f85b3d0ff6fa80e561d1d6efc949a4f024d1a6180ad8d7b3a1d0efcce0

                                SHA512

                                cda9b56005d3373788a1f0374d5d5a55bb4bd503930b5191b0c5387a08adeeed1162dc914221572e37d8dd3a2dc050259f79b55b439f5a80c95c49eaacbadee7

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

                                Filesize

                                649B

                                MD5

                                e45e722253237e1f779915b2356e52af

                                SHA1

                                e97fa257fe6f71c2167c2e049542103e3918d8fd

                                SHA256

                                074c9588419b33ee63633a4a5c29d22c642643f907b6d1b4831defe511cade9d

                                SHA512

                                1fdd7cffdfeba8665fda0515d151411557bae0a053a217e2f8e78f91cc15ab67356155d6c5f0ba720fce75db4b1d78d1cf382e9095041ec0be4d31f6b4804ae7

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                                Filesize

                                2B

                                MD5

                                d751713988987e9331980363e24189ce

                                SHA1

                                97d170e1550eee4afc0af065b78cda302a97674c

                                SHA256

                                4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                                SHA512

                                b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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

                                Filesize

                                356B

                                MD5

                                7ab0fa741acd725b3968ed0dee7d83b9

                                SHA1

                                b75e5b98d5ce93fdf89a442271e37d7448dec51b

                                SHA256

                                6eb5ffb6e3761d79b5abf3d201758e8fee208df5f60ee6904f57c360811df37a

                                SHA512

                                fe8d3a10468d858933ee86e80cff6d03650d91fb4b27fbba6a20b333f575e4baf50334c2336c9731ba353cf53fff2d85b15ff3b1120b4e0d76cfe4fc6b999c1f

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

                                Filesize

                                8KB

                                MD5

                                581bf0b5973f36aebf1b1378330b2d5d

                                SHA1

                                759b29d6e28d006fe1b7233e896f1d2dc41e5178

                                SHA256

                                ff91032bae4f6e300be07d6ce02ea02fa94492baa4e177897a931b420d3aa905

                                SHA512

                                1df3f922950be823de0ff978c1d4bf8011890fd774c5d102e70bb2c82c348c3b96ee98b3b67ebe1f4fa5858824f5016e7aa765f4f31543c982d950a9646a692c

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

                                Filesize

                                12KB

                                MD5

                                cd14c8dbe13d12b4d0cfdbd94337fa99

                                SHA1

                                ef9a576f8be779eb012a09bdb6f4a4dfc0c48650

                                SHA256

                                542fe5ba7cfb7bd3a047ee14c1a474663dd27677d0efab8d1ef5e05909e72e90

                                SHA512

                                238136f77bec098a56ba6d4916149158573112dd886b458f3bfc3e107f7ff63e6e537205fbda53d784677efa3e13132a4a09296969245e31360a4ac5931220e3

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

                                Filesize

                                233KB

                                MD5

                                91c2b617e395ba25c90cb1b75d619b1a

                                SHA1

                                b3732b01501c5881cb13f90e06bd2cf760482f7d

                                SHA256

                                ca65b981433f41ca7030238e9279a70f82e4d5cfcaba5dd591056266ff35d8b1

                                SHA512

                                d55467ce8243de247dab5699a7245178d556f0bee93a9f4c11eedc30f086f67d7673cf6849c11b7e52cb4c222597ea6516e3b0013a18dc428f830db0880aa18a

                              • C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe

                                Filesize

                                3.3MB

                                MD5

                                5791d405ca0a97a89eeaeb4f2be628be

                                SHA1

                                a012d40aaaa01db12a83b0e4408d012fd383dd0b

                                SHA256

                                6c67a1bf1d558b31a790e4bdcef062c9b49f00a1b3d7361dfc8308d55b87bc5d

                                SHA512

                                3971447d6a5f1ffe51bb1acc0d2525aa5bca521358c67828e6bd983d68e8c22dfa83ab49109575bc113e13de861682af563a3ed21e5ef48cce1bfcdb8f1f2afd

                              • memory/4404-9-0x00007FFFABA10000-0x00007FFFAC4D2000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/4404-6-0x00007FFFABA10000-0x00007FFFAC4D2000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/4404-5-0x0000000000F50000-0x00000000012A6000-memory.dmp

                                Filesize

                                3.3MB

                              • memory/4404-4-0x00007FFFABA13000-0x00007FFFABA15000-memory.dmp

                                Filesize

                                8KB

                              • memory/5080-40-0x000000001C700000-0x000000001C712000-memory.dmp

                                Filesize

                                72KB

                              • memory/5080-41-0x000000001D7C0000-0x000000001D7FC000-memory.dmp

                                Filesize

                                240KB

                              • memory/5080-36-0x000000001CE50000-0x000000001D378000-memory.dmp

                                Filesize

                                5.2MB

                              • memory/5080-26-0x000000001C760000-0x000000001C812000-memory.dmp

                                Filesize

                                712KB

                              • memory/5080-24-0x000000001C650000-0x000000001C6A0000-memory.dmp

                                Filesize

                                320KB