Analysis

  • max time kernel
    4s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-01-2025 08:25

General

  • Target

    d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cfN.exe

  • Size

    2.0MB

  • MD5

    36a308a5a1ac469c493a84a1b0c96240

  • SHA1

    6b6d55af7eed02af39e1adaa3b4a9fb4eb6938c8

  • SHA256

    d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cf

  • SHA512

    2cdf91779579beb0de8a259f1b368fb82593e3dd91354ac8537eb22089a040c52e142306350caa49044366ca06573aaf3278ee4a5aa3f6da196a7f423335d075

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYX:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YZ

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 5 IoCs
  • Executes dropped EXE 4 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 8 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cfN.exe
    "C:\Users\Admin\AppData\Local\Temp\d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cfN.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:2664
    • 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:2728
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2824
    • 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:2844
      • 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:1048
      • 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:576
        • 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:1300
    • C:\Users\Admin\AppData\Local\Temp\d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cfN.exe
      "C:\Users\Admin\AppData\Local\Temp\d25077b6b3c6d3cd8ca38dd4eb410a8f56fa2f889459c96fe4746d9c4dc9a7cfN.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2828
    • 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:2648
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {87D76D74-7712-45BC-9017-428E5322F2A0} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2040
      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
        3⤵
          PID:536
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k
            4⤵
              PID:2768
          • C:\Users\Admin\AppData\Local\Temp\windef.exe
            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
            3⤵
              PID:2376
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
              3⤵
                PID:2132
              • 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:1388

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\709O3ZRG.txt

            Filesize

            213B

            MD5

            95f4160115bdcf424f5365f5a269325e

            SHA1

            a8e997e34e2bbbb807b03bb6cb09ee29a15cf802

            SHA256

            57eaa9995d5e0b7cb771e7d55b8f1f2442073ace25fb4b927eea84e0043f095b

            SHA512

            e4228acda9ca1beb947f160dde66919ce48be8a761fe2ffed75c5d3488b53f919b225b683e69fd9e7b316633b4f8a12777c5579186841cd24790953c142de145

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

            Filesize

            2.0MB

            MD5

            3ec5ec2ec0c9afe9f7e971f24aac0666

            SHA1

            4f8e3de74beabd07db1679c2d47058f4b380f62f

            SHA256

            3998674fe09c6bc0cfe8a4bfb5c0f0e4e9140b44455277c8fc981276cd02af97

            SHA512

            92ca254ff3784b9151b0bc8c451696cd7b31c19bd11b39a5efa527f3841ef5bd34c9ea5d85884b599456d42a57ee479eb3ab7924fffede9f6d39ea0893f761e9

          • \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/576-64-0x0000000001230000-0x000000000128E000-memory.dmp

            Filesize

            376KB

          • memory/2132-106-0x00000000000D0000-0x00000000000F0000-memory.dmp

            Filesize

            128KB

          • memory/2132-99-0x00000000000D0000-0x00000000000F0000-memory.dmp

            Filesize

            128KB

          • memory/2132-102-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2376-117-0x0000000000EA0000-0x0000000000EFE000-memory.dmp

            Filesize

            376KB

          • memory/2664-30-0x0000000000740000-0x0000000000741000-memory.dmp

            Filesize

            4KB

          • memory/2768-111-0x00000000003F0000-0x000000000048C000-memory.dmp

            Filesize

            624KB

          • memory/2768-110-0x000007FFFFFDD000-0x000007FFFFFDE000-memory.dmp

            Filesize

            4KB

          • memory/2768-116-0x00000000003F0000-0x000000000048C000-memory.dmp

            Filesize

            624KB

          • memory/2824-50-0x00000000003F0000-0x000000000048C000-memory.dmp

            Filesize

            624KB

          • memory/2824-54-0x00000000003F0000-0x000000000048C000-memory.dmp

            Filesize

            624KB

          • memory/2824-47-0x0000000000020000-0x0000000000021000-memory.dmp

            Filesize

            4KB

          • memory/2824-49-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

            Filesize

            4KB

          • memory/2828-31-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2828-33-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2828-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2828-43-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2844-46-0x0000000000C40000-0x0000000000C9E000-memory.dmp

            Filesize

            376KB