Analysis

  • max time kernel
    27s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231025-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2023 12:52

General

  • Target

    NEAS.62f01895a40b132437a5b3cbff3cb040.exe

  • Size

    2.0MB

  • MD5

    62f01895a40b132437a5b3cbff3cb040

  • SHA1

    444527171ab22e2f4ca32142f9c1ef83483be490

  • SHA256

    7f98904db7bfc328fec7bcd5abadcbb711a3c537681a9ace9ca04c49ba5d768e

  • SHA512

    6828e3de888a9f7460ff23de93481ea60276f546715a45ce76a511ded7ef5d506a28c51f5504f736b8f99eafe959b118ecfd7db4294871388137be40d5a6f4ac

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

Malware Config

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

Extracted

Family

azorult

C2

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

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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.62f01895a40b132437a5b3cbff3cb040.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.62f01895a40b132437a5b3cbff3cb040.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:4772
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:3836
      • 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:1400
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:916
          • 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:4836
      • C:\Users\Admin\AppData\Local\Temp\NEAS.62f01895a40b132437a5b3cbff3cb040.exe
        "C:\Users\Admin\AppData\Local\Temp\NEAS.62f01895a40b132437a5b3cbff3cb040.exe"
        2⤵
          PID:4620
        • 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:1780
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        1⤵
          PID:1752
          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
            2⤵
              PID:1108
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k
                3⤵
                  PID:4392
              • C:\Users\Admin\AppData\Local\Temp\windef.exe
                "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                2⤵
                  PID:1488

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                Filesize

                1KB

                MD5

                10eab9c2684febb5327b6976f2047587

                SHA1

                a12ed54146a7f5c4c580416aecb899549712449e

                SHA256

                f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                SHA512

                7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

              • 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\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

                cab28ac30c509e1061689ccf51b89acb

                SHA1

                3c7eaed1df3528e2c655d5bb2de2da83858f1b31

                SHA256

                a37ff3d5e090873257928214658b8215d90583fbbd303fa8fd02f471daa9766d

                SHA512

                b9d35d57c1fd7822d76a469e79503219f1527b523b9aa1a95350de87aebe3c76f31e2461386bdc70b5dab89462a49dd4a3ddc61d0bde70d81dba35ebf360d4be

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

                Filesize

                2.0MB

                MD5

                cab28ac30c509e1061689ccf51b89acb

                SHA1

                3c7eaed1df3528e2c655d5bb2de2da83858f1b31

                SHA256

                a37ff3d5e090873257928214658b8215d90583fbbd303fa8fd02f471daa9766d

                SHA512

                b9d35d57c1fd7822d76a469e79503219f1527b523b9aa1a95350de87aebe3c76f31e2461386bdc70b5dab89462a49dd4a3ddc61d0bde70d81dba35ebf360d4be

              • memory/916-58-0x00000000734F0000-0x0000000073CA0000-memory.dmp

                Filesize

                7.7MB

              • memory/916-57-0x0000000006A80000-0x0000000006A8A000-memory.dmp

                Filesize

                40KB

              • memory/916-54-0x00000000051B0000-0x00000000051C0000-memory.dmp

                Filesize

                64KB

              • memory/916-52-0x00000000734F0000-0x0000000073CA0000-memory.dmp

                Filesize

                7.7MB

              • memory/1488-87-0x00000000734F0000-0x0000000073CA0000-memory.dmp

                Filesize

                7.7MB

              • memory/1864-19-0x0000000000D60000-0x0000000000D61000-memory.dmp

                Filesize

                4KB

              • memory/3836-32-0x00000000734F0000-0x0000000073CA0000-memory.dmp

                Filesize

                7.7MB

              • memory/3836-34-0x0000000000910000-0x000000000096E000-memory.dmp

                Filesize

                376KB

              • memory/3836-44-0x00000000064E0000-0x00000000064F2000-memory.dmp

                Filesize

                72KB

              • memory/3836-53-0x00000000734F0000-0x0000000073CA0000-memory.dmp

                Filesize

                7.7MB

              • memory/3836-43-0x0000000005380000-0x00000000053E6000-memory.dmp

                Filesize

                408KB

              • memory/3836-45-0x0000000006920000-0x000000000695C000-memory.dmp

                Filesize

                240KB

              • memory/3836-42-0x0000000005370000-0x0000000005380000-memory.dmp

                Filesize

                64KB

              • memory/3836-41-0x0000000005420000-0x00000000054B2000-memory.dmp

                Filesize

                584KB

              • memory/3836-40-0x0000000005890000-0x0000000005E34000-memory.dmp

                Filesize

                5.6MB

              • memory/4392-74-0x00000000007F0000-0x000000000088C000-memory.dmp

                Filesize

                624KB

              • memory/4392-72-0x0000000000890000-0x0000000000891000-memory.dmp

                Filesize

                4KB

              • memory/4392-73-0x00000000007F0000-0x000000000088C000-memory.dmp

                Filesize

                624KB

              • memory/4392-78-0x00000000007F0000-0x000000000088C000-memory.dmp

                Filesize

                624KB

              • memory/4620-37-0x0000000000400000-0x0000000000420000-memory.dmp

                Filesize

                128KB

              • memory/4620-20-0x0000000000400000-0x0000000000420000-memory.dmp

                Filesize

                128KB

              • memory/4772-36-0x0000000000940000-0x00000000009DC000-memory.dmp

                Filesize

                624KB

              • memory/4772-55-0x0000000000940000-0x00000000009DC000-memory.dmp

                Filesize

                624KB

              • memory/4772-35-0x00000000009E0000-0x00000000009E1000-memory.dmp

                Filesize

                4KB

              • memory/4772-28-0x0000000000940000-0x00000000009DC000-memory.dmp

                Filesize

                624KB