Analysis

  • max time kernel
    3s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2025 09:38

General

  • Target

    a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45.exe

  • Size

    2.0MB

  • MD5

    c914eef9aed3df6f8737868abe80d331

  • SHA1

    5a666f42694dbea1ab584dc6b590b14adc89fe55

  • SHA256

    a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45

  • SHA512

    ee49e26991cac569b0dd8a14d7a303fb0964e124421bfc63ca7f6e35becd4dbec79ca07b9e9e209d39b0951d93863e709ffd52afc0a2873f6234b2695e1f0695

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYZ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

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).

  • Program crash 1 IoCs
  • 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 2 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\a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45.exe
    "C:\Users\Admin\AppData\Local\Temp\a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45.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:2272
    • 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:484
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2588
    • 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:2388
      • 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:3012
      • 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:2976
        • 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:2740
    • C:\Users\Admin\AppData\Local\Temp\a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45.exe
      "C:\Users\Admin\AppData\Local\Temp\a4bf0e49e08125ca996b4e96427606c4bc6d2b89f02c8ee08692aef627f8ac45.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      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⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2888
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {F6F93DF9-8966-46A0-958E-2411CCFADBCC} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1296
      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
        3⤵
          PID:1828
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k
            4⤵
              PID:2620
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 160
              4⤵
              • Program crash
              PID:2616
          • C:\Users\Admin\AppData\Local\Temp\windef.exe
            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
            3⤵
              PID:388
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
              3⤵
                PID:2112
              • 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:1128

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\TAPUKA7B.txt

            Filesize

            213B

            MD5

            8f29e14676dc7fc59c9234a8a19169c9

            SHA1

            762836b46eda2c0ba3d10825e21e247f3919ec24

            SHA256

            77e25951e6cb91f0bb5ee99cb9fc19c77508915aa980450b2057081b64996b8b

            SHA512

            84b69dcf4986a4ffba4a69b1b0acb3d68bbb863be809ff6813c017c8cd68c0b4f75f89516e8e233443980507ed6e829cae1969f704496f18b47b231717917732

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

            Filesize

            2.0MB

            MD5

            131f7022429fa61c97138a6e70421eb9

            SHA1

            ed05919c7a57e6516bdb312681117a9acf51a79c

            SHA256

            3241ba82a6d333ec1b0fa23b1edcac1f31dcb46f223dda467d31fcb62b808761

            SHA512

            b7a5d35cbe02086016d09c71c61ac3f711c58e1f9413f949be0725b26aabcb13d7892a07f422c35d0f2d80d7a08bdf54489c11931bcc0e06249be19f479780af

          • \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/388-110-0x00000000012C0000-0x000000000131E000-memory.dmp

            Filesize

            376KB

          • memory/2112-103-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2272-112-0x0000000000390000-0x0000000000391000-memory.dmp

            Filesize

            4KB

          • memory/2272-43-0x0000000000390000-0x0000000000391000-memory.dmp

            Filesize

            4KB

          • memory/2388-55-0x0000000000DA0000-0x0000000000DFE000-memory.dmp

            Filesize

            376KB

          • memory/2388-44-0x000000007451E000-0x000000007451F000-memory.dmp

            Filesize

            4KB

          • memory/2588-54-0x00000000002E0000-0x000000000037C000-memory.dmp

            Filesize

            624KB

          • memory/2588-47-0x0000000000020000-0x0000000000021000-memory.dmp

            Filesize

            4KB

          • memory/2588-50-0x00000000002E0000-0x000000000037C000-memory.dmp

            Filesize

            624KB

          • memory/2588-49-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

            Filesize

            4KB

          • memory/2800-42-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2800-29-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2800-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2800-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2976-65-0x0000000000FE0000-0x000000000103E000-memory.dmp

            Filesize

            376KB