Analysis

  • max time kernel
    4s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-01-2025 03:25

General

  • Target

    3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78.exe

  • Size

    2.0MB

  • MD5

    7b88dc02a3b11e27a3e4595c442d30ea

  • SHA1

    2546ae7b96ffc096d2f4cf5093290d0a74c09948

  • SHA256

    3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78

  • SHA512

    9125ed37e104c25779ec7e402e4d55894a9e2764604f786bbc6c54918775eb48c46b0373a8800117c314ff9eb6c6ee2224f48aa0fd8bf7efaa30f98f8bf3c9b8

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYj:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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 1 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78.exe
    "C:\Users\Admin\AppData\Local\Temp\3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:596
    • 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
      PID:2932
      • 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⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2960
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1196
          • 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:1972
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\qnqZH93rvBmN.bat" "
            4⤵
              PID:1240
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2088
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1944
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1736
                    • 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:1836
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 1408
                  4⤵
                  • Program crash
                  PID:2160
            • C:\Users\Admin\AppData\Local\Temp\3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78.exe
              "C:\Users\Admin\AppData\Local\Temp\3a4a38ed839a1f73825b8456fc1efa73a65a7af25ba3513472d05cfac5ecef78.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2740
            • 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:2900
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {95467205-8371-47EB-B4EF-AD29234DB942} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
            1⤵
              PID:2608
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1528
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:560
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:1444
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:1372
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2384
                          • 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
                            3⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:2556

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\qnqZH93rvBmN.bat

                        Filesize

                        208B

                        MD5

                        c19a1c259e8b8883514ef4d0b045d4a1

                        SHA1

                        3306fee4842425d02c56fc83cacfb202102323ab

                        SHA256

                        c433a8855b0e0fdbfc57692e1abc4e4ef14ca47f58d001e5ecfbdde8d35958a6

                        SHA512

                        9e859231bc7c8051f3f0d48308d4029a45018465d2404c9072386841300160da60a3aba112bfa315f1e0eb013b812d231b636b51c76acbb676dbacfea12f5100

                      • C:\Users\Admin\AppData\Roaming\Logs\01-26-2025

                        Filesize

                        224B

                        MD5

                        6ecf9ce7416449dc52c085322b46790c

                        SHA1

                        8309a2775afd2e83b8a533eafc8f0e48fd05cbae

                        SHA256

                        1b39b8c0037075d726d0855c820a55b17b8b192171646d5fb58ea783ade03335

                        SHA512

                        53899e3b9de186f8a7b9a003cfd1e103f95730713d431c0e50f5626c8d956f05259ff7dd9d889419d6fd34b0b6643b2f76eea9563ec597efafde3cab31b14871

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\769QJCSG.txt

                        Filesize

                        213B

                        MD5

                        22f81f3e9fd8d0097be7e8fe56f81466

                        SHA1

                        fef51c3b9069fd34acbc9167f29f9a2c41e2771a

                        SHA256

                        89c09f42d6f622f48ca2f36f6dd22d82cda511733d8abf54914bd1a03528702a

                        SHA512

                        4814a3bf996a676591c8fb8e283b530ec124fc866f9c260b60ce9aa9af9e733adb32d1789c46746d040c3253b3cc052227fff9057c1c386cb6ff9a2640df10aa

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

                        Filesize

                        2.0MB

                        MD5

                        7e3853f3ebb46bd5bd21dbb35d694d1f

                        SHA1

                        c6a20fa0a31f91564e49aad9ece9e92c82298883

                        SHA256

                        97e792ff2abf9bdba5fdf436d63175591ef797ffef768b51d4a31ccdeb9b48f0

                        SHA512

                        95a5d90175dd3f0d1c42055d5c3e2239e147ac52d1257afb7dd153ff5c8a072f49fec46c656e57deee383cae2de963426042b64e6f9f0ca63ed312df1f9c1fd8

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

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/596-47-0x0000000000140000-0x00000000001DC000-memory.dmp

                        Filesize

                        624KB

                      • memory/596-44-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/596-46-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

                        Filesize

                        4KB

                      • memory/596-53-0x0000000000140000-0x00000000001DC000-memory.dmp

                        Filesize

                        624KB

                      • memory/1196-64-0x0000000000FA0000-0x0000000000FFE000-memory.dmp

                        Filesize

                        376KB

                      • memory/1372-135-0x0000000000190000-0x00000000001EE000-memory.dmp

                        Filesize

                        376KB

                      • memory/1444-109-0x000007FFFFFDD000-0x000007FFFFFDE000-memory.dmp

                        Filesize

                        4KB

                      • memory/1444-110-0x00000000000D0000-0x000000000016C000-memory.dmp

                        Filesize

                        624KB

                      • memory/1444-115-0x00000000000D0000-0x000000000016C000-memory.dmp

                        Filesize

                        624KB

                      • memory/1736-81-0x0000000000FC0000-0x000000000101E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2384-129-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2572-30-0x00000000007E0000-0x00000000007E1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2740-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2740-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2740-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2740-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2932-54-0x0000000001310000-0x000000000136E000-memory.dmp

                        Filesize

                        376KB