Analysis

  • max time kernel
    2s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 17:26

General

  • Target

    34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1dN.exe

  • Size

    2.0MB

  • MD5

    21614126a784399d3e930b67fe7d75b0

  • SHA1

    56985763c6c22d210c64c46fe5915a66484a113e

  • SHA256

    34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1d

  • SHA512

    b99efffbdc40df46316486e577b28314531942ddd511207650fcaf9a8fb579323092bcdb7a1f26960387470b3a2b252aed16ef284736fb4e0920b94f7810e5af

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYg:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YS

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 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 9 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).

  • 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1dN.exe
    "C:\Users\Admin\AppData\Local\Temp\34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1dN.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:2404
    • 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:1640
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2736
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2720
      • 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:2588
      • 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
        PID:2848
        • 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:544
    • C:\Users\Admin\AppData\Local\Temp\34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1dN.exe
      "C:\Users\Admin\AppData\Local\Temp\34cc22ec2ce60926d473a8d2c43f8058a567be2f570685ad76a4c1ea537b0d1dN.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2524
    • 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:2688
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {409900F4-643F-4F5A-903E-377EFEE92607} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
    1⤵
      PID:1392
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
          PID:2132
          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
            3⤵
              PID:2176
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
              3⤵
                PID:2288

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            2.0MB

            MD5

            0d22b4e1d6e83f7ca0fdac4c8204158b

            SHA1

            cdb926ecb491aed2395a7265a737ab1b4440a453

            SHA256

            7cd0de18d9ba40f78ca5457031fc8d9558660ce11f58ea5ce2c705fb1fe5b57c

            SHA512

            540b697dd663ee70c3834050cc7d8a7a457165ee99bcfcbfe9c7031eb8a145654eef160e207427750f63f039c54cd7aff3afa92bd791db960df739c6eafb712d

          • \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/2404-66-0x00000000008A0000-0x00000000008A1000-memory.dmp

            Filesize

            4KB

          • memory/2404-43-0x00000000008A0000-0x00000000008A1000-memory.dmp

            Filesize

            4KB

          • memory/2524-40-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2524-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2524-30-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2524-28-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2720-50-0x0000000000860000-0x00000000008BE000-memory.dmp

            Filesize

            376KB

          • memory/2736-48-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

            Filesize

            4KB

          • memory/2736-54-0x00000000003D0000-0x000000000046C000-memory.dmp

            Filesize

            624KB

          • memory/2736-49-0x00000000003D0000-0x000000000046C000-memory.dmp

            Filesize

            624KB

          • memory/2736-46-0x0000000000020000-0x0000000000021000-memory.dmp

            Filesize

            4KB

          • memory/2848-64-0x00000000013C0000-0x000000000141E000-memory.dmp

            Filesize

            376KB