Analysis

  • max time kernel
    17s
  • max time network
    18s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-01-2025 14:25

General

  • Target

    http://jujuju.lat/files/1.exe

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Miner

C2

154.216.19.144:7000

Mutex

9aaccf69-ec3a-44b7-854b-ecd43ee8e151

Attributes
  • encryption_key

    4A883D3FC8F269324ACDCF0E4B7FFECA042CD47D

  • install_name

    Svc.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Svc

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 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
  • Modifies registry class 1 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 36 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\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://jujuju.lat/files/1.exe
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3808
    • 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=0xfc,0x100,0x104,0xf8,0x108,0x7ffb61b7cc40,0x7ffb61b7cc4c,0x7ffb61b7cc58
      2⤵
        PID:1308
      • 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=1900,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1736 /prefetch:2
        2⤵
          PID:1752
        • 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=2136,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2168 /prefetch:3
          2⤵
            PID:2036
          • 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=2196,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2248 /prefetch:8
            2⤵
              PID:2092
            • 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=3020,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3056 /prefetch:1
              2⤵
                PID:220
              • 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=3024,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3180 /prefetch:1
                2⤵
                  PID:4344
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --no-appcompat-clear --field-trial-handle=4892,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4904 /prefetch:8
                  2⤵
                    PID:4800
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --no-appcompat-clear --field-trial-handle=5040,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5056 /prefetch:8
                    2⤵
                      PID:1528
                    • 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=5048,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4900 /prefetch:8
                      2⤵
                        PID:2656
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4936,i,13610586315895749090,11326848126459887559,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4912 /prefetch:8
                        2⤵
                          PID:1364
                      • 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:4872
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                          1⤵
                            PID:3100
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:712
                            • C:\Users\Admin\Downloads\1.exe
                              "C:\Users\Admin\Downloads\1.exe"
                              1⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2476
                              • C:\Windows\SYSTEM32\schtasks.exe
                                "schtasks" /create /tn "Svc" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe" /rl HIGHEST /f
                                2⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:3032
                              • C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe
                                "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe"
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of SetWindowsHookEx
                                PID:4184
                                • C:\Windows\SYSTEM32\schtasks.exe
                                  "schtasks" /create /tn "Svc" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe" /rl HIGHEST /f
                                  3⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:4284

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\10f3d881-3e79-43c8-a41c-3db2797f218c.tmp

                              Filesize

                              649B

                              MD5

                              3df514375d0156ac100eb60b43a36578

                              SHA1

                              397b3cf44771366eeb97b6f3f6d5e58a1668ceec

                              SHA256

                              98db29614387d2625e2482ab6f7c4356e995f6e79e662c676b195026e5bac7a6

                              SHA512

                              a5dfdbdc75296a5b14f00b4492287083e405ee8bc82a784a6c243e3e74fe851c1d8bcced4dea17d2b4ddb8f40b5e5c74b9e243a20dc807b357261d577c34189c

                            • 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\Preferences

                              Filesize

                              9KB

                              MD5

                              93f107b6978cc13663caf006d7bb93e7

                              SHA1

                              a47ecb3a5b9eb71047089631f99dc38374283bde

                              SHA256

                              157c01420b1fb3e22fd693b404fbfce21ea6f9ed9752043f44d1d47572b6f250

                              SHA512

                              790288ff0d5d6a670b3183f6c324715c559ec10195287085c9ed36f7f6e489eb8336db67303b68a8306c03980d8733127fa4eb7c5dee8945eb94f454aa8bab56

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

                              Filesize

                              116KB

                              MD5

                              b6cb6481c632122250baf10ffc9b9f99

                              SHA1

                              df13e585bdac6767e4a3d0712c1e4c4aa817242e

                              SHA256

                              b13f7973baecea1ab0b7f1e94640c159ed8b44d0ea2cfd1f7deddc71052f5a44

                              SHA512

                              d91e8b3e6a5875deec2816b58da73d93b812e9bc194cd1555c6a993f952ee2a216d0f25abf084550721a5b1f95f2dbc47bbe11701092b3528d9d1f389b1aaca4

                            • C:\Users\Admin\Downloads\Unconfirmed 862348.crdownload

                              Filesize

                              3.1MB

                              MD5

                              b48f94c872bb4e3596924f7f587b0a54

                              SHA1

                              748f86a0394486b577978794145328702ac77a62

                              SHA256

                              e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de

                              SHA512

                              2704c862668c3ad9f9222761b91861b1c84d84021c1309b309f5cd267fc77e542ca2c821dccb2d9ff2f2063dbc5b604204c2969fa68c7a0de3f2e40039655da1

                            • memory/2476-52-0x00007FFB4DEC3000-0x00007FFB4DEC5000-memory.dmp

                              Filesize

                              8KB

                            • memory/2476-53-0x0000000000D70000-0x0000000001094000-memory.dmp

                              Filesize

                              3.1MB

                            • memory/2476-54-0x00007FFB4DEC0000-0x00007FFB4E981000-memory.dmp

                              Filesize

                              10.8MB

                            • memory/2476-60-0x00007FFB4DEC0000-0x00007FFB4E981000-memory.dmp

                              Filesize

                              10.8MB

                            • memory/4184-61-0x000000001B9B0000-0x000000001BA00000-memory.dmp

                              Filesize

                              320KB

                            • memory/4184-62-0x000000001BAC0000-0x000000001BB72000-memory.dmp

                              Filesize

                              712KB

                            • memory/4184-65-0x000000001BA70000-0x000000001BA82000-memory.dmp

                              Filesize

                              72KB

                            • memory/4184-66-0x000000001C200000-0x000000001C23C000-memory.dmp

                              Filesize

                              240KB