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Analysis

  • max time kernel
    72s
  • max time network
    74s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    05/12/2024, 06:57

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 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:4348
  • 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:456
    • 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:4920
    • 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
      • Suspicious use of WriteProcessMemory
      PID:1588
      • 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:4020
  • 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:3256
    • 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,0x7ffd485bcc40,0x7ffd485bcc4c,0x7ffd485bcc58
      2⤵
        PID:4668
      • 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=1988,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=1968 /prefetch:2
        2⤵
          PID:948
        • 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=1940,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2052 /prefetch:3
          2⤵
            PID:1700
          • 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=1820,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2496 /prefetch:8
            2⤵
              PID:1476
            • 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=3148,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3156 /prefetch:1
              2⤵
                PID:3180
              • 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=3180,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3188 /prefetch:1
                2⤵
                  PID:3892
                • 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=4624,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4584 /prefetch:1
                  2⤵
                    PID:4828
                  • 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=4860,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4868 /prefetch:8
                    2⤵
                      PID:3672
                    • 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=5068,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=5080 /prefetch:8
                      2⤵
                        PID:4752
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4912,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=5076 /prefetch:8
                        2⤵
                          PID:4020
                        • 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=4916,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4448 /prefetch:8
                          2⤵
                            PID:2024
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=5152,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4904 /prefetch:8
                            2⤵
                              PID:4124
                            • 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=5212,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=5052 /prefetch:8
                              2⤵
                                PID:1868
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --field-trial-handle=5128,i,13671833837609472013,9076203734693390162,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=5116 /prefetch:2
                                2⤵
                                  PID:3540
                              • 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:4824
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                  1⤵
                                    PID:1104

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\5269d2bd-460b-49e5-bf0a-75262dbc6068.tmp

                                    Filesize

                                    236KB

                                    MD5

                                    f862baff8ca28747b7a90bf6605e2d60

                                    SHA1

                                    205d0889edbdb4e40132f9009c26758190a1a9c8

                                    SHA256

                                    da6620820b951e6539c28538355fd0c1d5859b0dcc9d78b0bef24a5f4dc09111

                                    SHA512

                                    3a5a875d6026a8d5b4af3d4ef088fe74d415890ce5ee4b27175e4d73214900d1de25e07ba1cc5d82e2026511cc0438f32c51149e9e0ac529f2d1938e7716e0d9

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

                                    Filesize

                                    649B

                                    MD5

                                    5e0a26f8bea6d9df9163ef2a8e91c1f0

                                    SHA1

                                    6e1f397d389fd57a7244653cba3c38b0b65a751d

                                    SHA256

                                    626f5c2771343839f616c958e05e240c43a4845b0823429965bfdca4487f23b9

                                    SHA512

                                    c88b77ae644857b0f8b53c3c4b860cc28f7ecdec6e1351e3efbdabaa06b44d78e6b7d53c1bef44dddd01f7a43ad035e2e9613511e298ea7744f873e1001517cf

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.84.1_0\_locales\en_CA\messages.json

                                    Filesize

                                    851B

                                    MD5

                                    07ffbe5f24ca348723ff8c6c488abfb8

                                    SHA1

                                    6dc2851e39b2ee38f88cf5c35a90171dbea5b690

                                    SHA256

                                    6895648577286002f1dc9c3366f558484eb7020d52bbf64a296406e61d09599c

                                    SHA512

                                    7ed2c8db851a84f614d5daf1d5fe633bd70301fd7ff8a6723430f05f642ceb3b1ad0a40de65b224661c782ffcec69d996ebe3e5bb6b2f478181e9a07d8cd41f6

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.84.1_0\dasherSettingSchema.json

                                    Filesize

                                    854B

                                    MD5

                                    4ec1df2da46182103d2ffc3b92d20ca5

                                    SHA1

                                    fb9d1ba3710cf31a87165317c6edc110e98994ce

                                    SHA256

                                    6c69ce0fe6fab14f1990a320d704fee362c175c00eb6c9224aa6f41108918ca6

                                    SHA512

                                    939d81e6a82b10ff73a35c931052d8d53d42d915e526665079eeb4820df4d70f1c6aebab70b59519a0014a48514833fefd687d5a3ed1b06482223a168292105d

                                  • 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

                                    f786494a6c85f43e7ea74b67c17cae3d

                                    SHA1

                                    ae64d29655281b9099c102e50b7be3afcde12a7a

                                    SHA256

                                    104dfe045cdfd4e9ba92afa7d03617fc5286fc56d2049ce6b42ef4eb48a9c88d

                                    SHA512

                                    59315014faf93908ceac4f590a3da38eec01da550bf84de99d8dd0565c5d68f3e39faeedc2b168cf0e0f98f03c61b0446897e7d16efc3e63c701c06b29c3d361

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

                                    Filesize

                                    9KB

                                    MD5

                                    db8937c8e683d7aefcadd2894cd982e0

                                    SHA1

                                    3105e3d5275df94d878e0af2527cb398fe24fc1c

                                    SHA256

                                    d4e2f4062bcbee22f72e00dbeeccd15a3dae72abd946e56274c2e64816a197c1

                                    SHA512

                                    0e0092eb71d88e0bea26dce216d29701ccf4d68f9b70ba413a87cce077dde965d9561a223730a6c429019eae7cd47ba32bca3432bd61f1a12a19586441157b25

                                  • C:\Users\Admin\AppData\Local\Temp\scoped_dir3256_1862281588\CRX_INSTALL\_locales\en_CA\messages.json

                                    Filesize

                                    711B

                                    MD5

                                    558659936250e03cc14b60ebf648aa09

                                    SHA1

                                    32f1ce0361bbfdff11e2ffd53d3ae88a8b81a825

                                    SHA256

                                    2445cad863be47bb1c15b57a4960b7b0d01864e63cdfde6395f3b2689dc1444b

                                    SHA512

                                    1632f5a3cd71887774bf3cb8a4d8b787ea6278271657b0f1d113dbe1a7fd42c4daa717cc449f157ce8972037572b882dc946a7dc2c0e549d71982dcdee89f727

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

                                    Filesize

                                    3.3MB

                                    MD5

                                    5791d405ca0a97a89eeaeb4f2be628be

                                    SHA1

                                    a012d40aaaa01db12a83b0e4408d012fd383dd0b

                                    SHA256

                                    6c67a1bf1d558b31a790e4bdcef062c9b49f00a1b3d7361dfc8308d55b87bc5d

                                    SHA512

                                    3971447d6a5f1ffe51bb1acc0d2525aa5bca521358c67828e6bd983d68e8c22dfa83ab49109575bc113e13de861682af563a3ed21e5ef48cce1bfcdb8f1f2afd

                                  • memory/456-9-0x00007FFD4DD40000-0x00007FFD4E802000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/456-6-0x00007FFD4DD40000-0x00007FFD4E802000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/456-5-0x0000000000DC0000-0x0000000001116000-memory.dmp

                                    Filesize

                                    3.3MB

                                  • memory/456-4-0x00007FFD4DD43000-0x00007FFD4DD45000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1588-15-0x000000001C250000-0x000000001C28C000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/1588-14-0x000000001C1F0000-0x000000001C202000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/1588-11-0x000000001C290000-0x000000001C342000-memory.dmp

                                    Filesize

                                    712KB

                                  • memory/1588-10-0x000000001B140000-0x000000001B190000-memory.dmp

                                    Filesize

                                    320KB