Analysis

  • max time kernel
    3s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 00:26

General

  • Target

    dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308N.exe

  • Size

    2.0MB

  • MD5

    0291b29d2b731393b223b6e785555e00

  • SHA1

    c7756020a77bb3369e9eae9a55d4db396509299b

  • SHA256

    dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308

  • SHA512

    c6bad54c86bf600d2814f78a6fbca048b77a8cb740a124468aa13a3b86a5fe2409523178b0473b20bd9cfd2d767ca64c09e49345351703b5c6fcccc2ff3dd716

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yf

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 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 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 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 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 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 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308N.exe
    "C:\Users\Admin\AppData\Local\Temp\dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308N.exe"
    1⤵
    • Quasar RAT
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2228
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:3060
      • 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:2244
        • 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:2512
        • 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:2852
          • 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:1488
      • C:\Users\Admin\AppData\Local\Temp\dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308N.exe
        "C:\Users\Admin\AppData\Local\Temp\dfa9214927989e835743a846c2e388e4803ca7683253feb209f8a08e82131308N.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2052
      • 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 {E4CBD05B-7B45-40EE-B2EA-591E9731DB28} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
      1⤵
        PID:1440
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2340

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          2.0MB

          MD5

          4a3b00830e745939ac7808c0e194aff5

          SHA1

          ed7cf36fc0f45dbdd8ac6071545ac0964fb5a111

          SHA256

          04517094876820ef6e3e4ef61caabe1532a43c0c3014dd2025551124f394c500

          SHA512

          5fea0ab83b43e7bca197185761e8e8ab3c8941c13bfdf57cb5878f69ef8bde90166c1cd1e28840b067cabcbc160caeabde4c7f71bfbaeb6d18283f331799eb45

        • \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/2052-33-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2052-36-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2052-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/2052-45-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2168-32-0x0000000000B70000-0x0000000000B71000-memory.dmp

          Filesize

          4KB

        • memory/2244-30-0x00000000741EE000-0x00000000741EF000-memory.dmp

          Filesize

          4KB

        • memory/2244-31-0x0000000001110000-0x000000000116E000-memory.dmp

          Filesize

          376KB

        • memory/2852-59-0x0000000001160000-0x00000000011BE000-memory.dmp

          Filesize

          376KB