Analysis

  • max time kernel
    4s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 02:39

General

  • Target

    bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe.exe

  • Size

    2.0MB

  • MD5

    82f52bcc2e4766b77c45422438138976

  • SHA1

    ba7d932862ff81e4be2fc52aff25f12ab16a6260

  • SHA256

    bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe

  • SHA512

    55cb15f8d52d53763960f339556612eed6c198856d8250e572d535471bca8ec11ceb3c57a35b49f9b069b2b2478a7f79867eee3f4f21b97dc0e5495bc21dea56

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe.exe
    "C:\Users\Admin\AppData\Local\Temp\bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 556
          3⤵
          • Program crash
          PID:1400
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4128
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3108
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2012
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:4016
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QZ3Jap4eOVr1.bat" "
            4⤵
              PID:5064
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1744
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1076
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2636
                    • C:\Windows\SysWOW64\schtasks.exe
                      "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1640
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 2268
                  4⤵
                  • Program crash
                  PID:2496
            • C:\Users\Admin\AppData\Local\Temp\bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe.exe
              "C:\Users\Admin\AppData\Local\Temp\bf70de08d46fcb86d33371203b578cb3626e67e99921a3cf4287847d838f6cfe.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1464
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
              2⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:4500
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 884 -ip 884
            1⤵
              PID:2816
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4076,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4328 /prefetch:8
              1⤵
                PID:1012
              • C:\Windows\System32\sihclient.exe
                C:\Windows\System32\sihclient.exe /cv 8vQf75V4Y0iZmEc6tbJ94Q.0.2
                1⤵
                  PID:3108
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2012 -ip 2012
                  1⤵
                    PID:3540
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:1424
                    • C:\Windows\system32\dwm.exe
                      "dwm.exe"
                      1⤵
                        PID:1404
                      • C:\Windows\system32\dwm.exe
                        "dwm.exe"
                        1⤵
                          PID:868
                        • C:\Windows\system32\dwm.exe
                          "dwm.exe"
                          1⤵
                            PID:64
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:4340
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:4064

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\QZ3Jap4eOVr1.bat

                                Filesize

                                208B

                                MD5

                                efb12fed21927ec3aedcc2c9c3895794

                                SHA1

                                184cac3caa707ee60bdd5c74d76b7a8f7323cd2b

                                SHA256

                                117c6124d877bee3fe9c13dcceedefdf68165e0188dd0a23da1659f2c08101fc

                                SHA512

                                c294a22794d22dbc4a0dd59b237ca2569458e6981ba048d0342e38792fcd8750d92b0e46f80bad57a76c15c93b90b632eb749ea8a1eb264e93fb87a837451a37

                              • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                Filesize

                                405KB

                                MD5

                                b8ba87ee4c3fc085a2fed0d839aadce1

                                SHA1

                                b3a2e3256406330e8b1779199bb2b9865122d766

                                SHA256

                                4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                SHA512

                                7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                              • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                Filesize

                                349KB

                                MD5

                                b4a202e03d4135484d0e730173abcc72

                                SHA1

                                01b30014545ea526c15a60931d676f9392ea0c70

                                SHA256

                                7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                SHA512

                                632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                              • C:\Users\Admin\AppData\Roaming\Logs\08-29-2024

                                Filesize

                                224B

                                MD5

                                e86928c6d8e2647699c8abd93d043077

                                SHA1

                                63279d0b42d78cec46ef5423f9d8b934625719b5

                                SHA256

                                5f3010c4e396b62a7120a76acbfc988362f5217f699f03eb9280b7839bc67151

                                SHA512

                                5bd7ad861ac466d200df6ee2ac393f29834aa4dbe235ae44422f8f069147940bf96d1f3b27fa4f466b7b8df80190abec220d31856160e75b369c404c4e23e714

                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                                Filesize

                                2.0MB

                                MD5

                                cb5376939a3059f54bdc1ed8827fd831

                                SHA1

                                63c0140962da23fe7424db9d0f58962931355b49

                                SHA256

                                ab69c0343d2712f2add9f30f887635e59a395450387c9547ab555c740e4b3f6b

                                SHA512

                                bcb71d84724bcd315eb9ab39986a285b262adc13309b4c4287864e36f8462de99746a7fe99105306a0f9ef0cbb0091a88c04c71de8cf4c8744fe512b81636e67

                              • memory/1464-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1464-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1988-20-0x0000000003EB0000-0x0000000003EB1000-memory.dmp

                                Filesize

                                4KB

                              • memory/2012-45-0x00000000062C0000-0x00000000062CA000-memory.dmp

                                Filesize

                                40KB

                              • memory/4128-35-0x0000000005710000-0x0000000005776000-memory.dmp

                                Filesize

                                408KB

                              • memory/4128-36-0x0000000005B80000-0x0000000005B92000-memory.dmp

                                Filesize

                                72KB

                              • memory/4128-37-0x0000000006870000-0x00000000068AC000-memory.dmp

                                Filesize

                                240KB

                              • memory/4128-34-0x0000000005670000-0x0000000005702000-memory.dmp

                                Filesize

                                584KB

                              • memory/4128-33-0x0000000005C20000-0x00000000061C4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/4128-30-0x0000000000CF0000-0x0000000000D4E000-memory.dmp

                                Filesize

                                376KB

                              • memory/4128-19-0x0000000072A2E000-0x0000000072A2F000-memory.dmp

                                Filesize

                                4KB