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Analysis

  • max time kernel
    1s
  • max time network
    27s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/01/2025, 09:37

General

  • Target

    200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040.exe

  • Size

    2.0MB

  • MD5

    f16e2230ff6d7a1863976581db265c58

  • SHA1

    7acf5fe98ea0cc3a6c5f8fa9def759601c1b6205

  • SHA256

    200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040

  • SHA512

    1f4f31a380a775a84de49e1c47032b86394ee3eda44726dbf21b81670e37bca1658af61687a49805ad76d543771928f24e6971eb83307b46cc51bed924514f8f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYz:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YV

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 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).

  • 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.

  • 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 WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040.exe
    "C:\Users\Admin\AppData\Local\Temp\200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040.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:2520
    • 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:1748
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2148
    • 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:2368
      • 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:2104
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:676
          • 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:1936
      • C:\Users\Admin\AppData\Local\Temp\200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040.exe
        "C:\Users\Admin\AppData\Local\Temp\200d840c21d20cca109dc29b0b8406d3e3e78d232921b390aa476be233852040.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2896
      • 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:2668
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {6FAEF98D-980B-4103-ADF4-465E33CAD538} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
      1⤵
        PID:1772
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2280
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:2024

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            2.0MB

            MD5

            9d6c2c6b04862203b6c5cfbe89be6555

            SHA1

            21158fb127a1f53f97af96c58555a847ef6bd758

            SHA256

            87214625343b4f366f4217336b603502014cf3253562db68a48642c1985f4fb7

            SHA512

            cfaeaa130611758d59254eb3671894f3155858ce8dab7eaa84d9e7a924291bac7582deb467eb7e45d35786fb613b75bb63feb209ea7788fd3c705c34bcd032e6

          • \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/676-61-0x00000000010A0000-0x00000000010FE000-memory.dmp

            Filesize

            376KB

          • memory/2148-32-0x0000000000020000-0x0000000000021000-memory.dmp

            Filesize

            4KB

          • memory/2148-34-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

            Filesize

            4KB

          • memory/2148-65-0x00000000000D0000-0x000000000016C000-memory.dmp

            Filesize

            624KB

          • memory/2148-38-0x00000000000D0000-0x000000000016C000-memory.dmp

            Filesize

            624KB

          • memory/2148-37-0x0000000000020000-0x0000000000021000-memory.dmp

            Filesize

            4KB

          • memory/2148-36-0x00000000000D0000-0x000000000016C000-memory.dmp

            Filesize

            624KB

          • memory/2148-51-0x00000000000D0000-0x000000000016C000-memory.dmp

            Filesize

            624KB

          • memory/2368-31-0x00000000002D0000-0x000000000032E000-memory.dmp

            Filesize

            376KB

          • memory/2368-30-0x000000007483E000-0x000000007483F000-memory.dmp

            Filesize

            4KB

          • memory/2520-35-0x0000000000730000-0x0000000000731000-memory.dmp

            Filesize

            4KB

          • memory/2896-44-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2896-47-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2896-50-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB

          • memory/2896-42-0x0000000000080000-0x00000000000A0000-memory.dmp

            Filesize

            128KB