Analysis

  • max time kernel
    4s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2024 18:34

General

  • Target

    0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe

  • Size

    2.0MB

  • MD5

    da6b1f75df9655f1986f5da7ebdbf354

  • SHA1

    111192c1e1192a91ec09c58f2dbbbee388019e4e

  • SHA256

    0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774

  • SHA512

    4957ae85f7801c8fa0d1f153de7d9ef7c67057f1a144937e43e0b659a66fbda4e49514e8ff73eb1e6b343bbf9dec2393abf795a2a4b47117252e7fb5053ea8cf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yk

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.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • 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 1 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 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 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 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe
    "C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.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:2516
    • 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:2520
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2520 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2616
      • 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:2080
        • 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:1336
        • 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
          • Suspicious use of WriteProcessMemory
          PID:1128
          • 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⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2512
      • C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe
        "C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2572
      • 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:3052
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {A4D18ECD-46AC-47EC-B0D0-97C5EF45E279} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
      1⤵
        PID:1564
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2036

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.0MB

          MD5

          0c14d1d15debb79b3aaec85632c624c9

          SHA1

          e36d790ce91cd9fa73967c6126a5232dbbeb7c36

          SHA256

          846bb7f126d20b9f18c2e093d81aae54c0d4bde67d3687802660458b155d5d54

          SHA512

          d7049ee1eedf0816c466d3097f4e91667dad5fe24a1e75599d6d9268c55f5823b131b35da7c8989d1348db9dc8be7c7682efff02e83216dda42e549abd5a23e3

        • \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/1128-59-0x00000000008E0000-0x000000000093E000-memory.dmp

          Filesize

          376KB

        • memory/2080-30-0x000000007481E000-0x000000007481F000-memory.dmp

          Filesize

          4KB

        • memory/2080-44-0x00000000011E0000-0x000000000123E000-memory.dmp

          Filesize

          376KB

        • memory/2516-31-0x0000000000A30000-0x0000000000A31000-memory.dmp

          Filesize

          4KB

        • memory/2572-45-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB

        • memory/2572-40-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/2572-34-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB

        • memory/2572-32-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB