Analysis

  • max time kernel
    1s
  • max time network
    88s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2023 20:20

General

  • Target

    NEAS.82339da9b0d225ecf2186b1525f72840.exe

  • Size

    2.0MB

  • MD5

    82339da9b0d225ecf2186b1525f72840

  • SHA1

    ce98cc9d4f8729575b4f0e5db0d42af8f7194d7c

  • SHA256

    54dd63d606a496420149d173ea0bfb21ec5e6bafdded2f1bf25042ccf8ca3edb

  • SHA512

    fa8b8894536c0fc6801046cda0f68822cfa268d649feca4cbbc11114e7a506b4a112570dd5642732e8f4fe67cd3047b684c6d36b5087423bd78b3f0027c7420d

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YV

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 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 3 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
  • Creates scheduled task(s) 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 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.82339da9b0d225ecf2186b1525f72840.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.82339da9b0d225ecf2186b1525f72840.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:644
    • 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⤵
      • Creates scheduled task(s)
      PID:1928
    • C:\Users\Admin\AppData\Local\Temp\NEAS.82339da9b0d225ecf2186b1525f72840.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.82339da9b0d225ecf2186b1525f72840.exe"
      2⤵
        PID:1640
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:868
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:3668
            • 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⤵
              • Creates scheduled task(s)
              PID:3108
          • 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⤵
            • Creates scheduled task(s)
            PID:856
        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2916
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2916 -ip 2916
        1⤵
          PID:4792
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 548
          1⤵
          • Program crash
          PID:3684
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k
          1⤵
            PID:4716
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            1⤵
              PID:3884
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                  PID:2692
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 520
                    3⤵
                    • Program crash
                    PID:1416
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    3⤵
                      PID:5000
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    2⤵
                      PID:1824
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      2⤵
                        PID:2800
                      • 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⤵
                        • Creates scheduled task(s)
                        PID:4904
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2692 -ip 2692
                      1⤵
                        PID:3024
                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                        1⤵
                          PID:4560

                        Network

                        MITRE ATT&CK Matrix ATT&CK v13

                        Execution

                        Scheduled Task/Job

                        1
                        T1053

                        Persistence

                        Scheduled Task/Job

                        1
                        T1053

                        Privilege Escalation

                        Scheduled Task/Job

                        1
                        T1053

                        Discovery

                        Query Registry

                        2
                        T1012

                        System Information Discovery

                        3
                        T1082

                        Peripheral Device Discovery

                        1
                        T1120

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log
                          Filesize

                          701B

                          MD5

                          5de8527438c860bfa3140dc420a03e52

                          SHA1

                          235af682986b3292f20d8d71a8671353f5d6e16d

                          SHA256

                          d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                          SHA512

                          77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

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

                          405KB

                          MD5

                          b8ba87ee4c3fc085a2fed0d839aadce1

                          SHA1

                          b3a2e3256406330e8b1779199bb2b9865122d766

                          SHA256

                          4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                          SHA512

                          7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                          405KB

                          MD5

                          b8ba87ee4c3fc085a2fed0d839aadce1

                          SHA1

                          b3a2e3256406330e8b1779199bb2b9865122d766

                          SHA256

                          4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                          SHA512

                          7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                          405KB

                          MD5

                          b8ba87ee4c3fc085a2fed0d839aadce1

                          SHA1

                          b3a2e3256406330e8b1779199bb2b9865122d766

                          SHA256

                          4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                          SHA512

                          7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                        • 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\Local\Temp\windef.exe
                          Filesize

                          349KB

                          MD5

                          b4a202e03d4135484d0e730173abcc72

                          SHA1

                          01b30014545ea526c15a60931d676f9392ea0c70

                          SHA256

                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                          SHA512

                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                          349KB

                          MD5

                          b4a202e03d4135484d0e730173abcc72

                          SHA1

                          01b30014545ea526c15a60931d676f9392ea0c70

                          SHA256

                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                          SHA512

                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                          349KB

                          MD5

                          b4a202e03d4135484d0e730173abcc72

                          SHA1

                          01b30014545ea526c15a60931d676f9392ea0c70

                          SHA256

                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                          SHA512

                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          Filesize

                          349KB

                          MD5

                          b4a202e03d4135484d0e730173abcc72

                          SHA1

                          01b30014545ea526c15a60931d676f9392ea0c70

                          SHA256

                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                          SHA512

                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          Filesize

                          349KB

                          MD5

                          b4a202e03d4135484d0e730173abcc72

                          SHA1

                          01b30014545ea526c15a60931d676f9392ea0c70

                          SHA256

                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                          SHA512

                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                          2.0MB

                          MD5

                          bfc12ab500cea0f63d21d36f580e9719

                          SHA1

                          314b6e6a0a52033e94c10dc8140b2871489bbd2a

                          SHA256

                          d4750cc9d4f237e9f0794f0cd31308b10263ce80dfabf6903baa2177e0bee976

                          SHA512

                          878a84b5333a12645e91400139a3a616e92f6c9711d9354213d2322fc55fe9b094c0f908063a22c3a6cb3c01e9a230492072a242edcc59f77f77fd24d4267230

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

                          2.0MB

                          MD5

                          bfc12ab500cea0f63d21d36f580e9719

                          SHA1

                          314b6e6a0a52033e94c10dc8140b2871489bbd2a

                          SHA256

                          d4750cc9d4f237e9f0794f0cd31308b10263ce80dfabf6903baa2177e0bee976

                          SHA512

                          878a84b5333a12645e91400139a3a616e92f6c9711d9354213d2322fc55fe9b094c0f908063a22c3a6cb3c01e9a230492072a242edcc59f77f77fd24d4267230

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

                          2.0MB

                          MD5

                          bfc12ab500cea0f63d21d36f580e9719

                          SHA1

                          314b6e6a0a52033e94c10dc8140b2871489bbd2a

                          SHA256

                          d4750cc9d4f237e9f0794f0cd31308b10263ce80dfabf6903baa2177e0bee976

                          SHA512

                          878a84b5333a12645e91400139a3a616e92f6c9711d9354213d2322fc55fe9b094c0f908063a22c3a6cb3c01e9a230492072a242edcc59f77f77fd24d4267230

                        • memory/644-19-0x0000000003E00000-0x0000000003E01000-memory.dmp
                          Filesize

                          4KB

                        • memory/868-29-0x0000000000170000-0x00000000001CE000-memory.dmp
                          Filesize

                          376KB

                        • memory/868-63-0x0000000004D80000-0x0000000004D90000-memory.dmp
                          Filesize

                          64KB

                        • memory/868-36-0x0000000004B30000-0x0000000004B96000-memory.dmp
                          Filesize

                          408KB

                        • memory/868-30-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/868-37-0x00000000050F0000-0x0000000005102000-memory.dmp
                          Filesize

                          72KB

                        • memory/868-35-0x0000000004D80000-0x0000000004D90000-memory.dmp
                          Filesize

                          64KB

                        • memory/868-34-0x0000000004A90000-0x0000000004B22000-memory.dmp
                          Filesize

                          584KB

                        • memory/868-33-0x0000000005170000-0x0000000005714000-memory.dmp
                          Filesize

                          5.6MB

                        • memory/868-71-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/868-62-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/1640-20-0x0000000000400000-0x0000000000420000-memory.dmp
                          Filesize

                          128KB

                        • memory/1640-28-0x0000000000400000-0x0000000000420000-memory.dmp
                          Filesize

                          128KB

                        • memory/1824-49-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
                          Filesize

                          64KB

                        • memory/1824-61-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/1824-48-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/2800-50-0x00000000003D0000-0x00000000003F0000-memory.dmp
                          Filesize

                          128KB

                        • memory/2800-59-0x00000000003D0000-0x00000000003F0000-memory.dmp
                          Filesize

                          128KB

                        • memory/3668-72-0x0000000005220000-0x0000000005230000-memory.dmp
                          Filesize

                          64KB

                        • memory/3668-70-0x0000000072D60000-0x0000000073510000-memory.dmp
                          Filesize

                          7.7MB

                        • memory/3668-74-0x0000000006760000-0x000000000676A000-memory.dmp
                          Filesize

                          40KB