Analysis

  • max time kernel
    4s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2024 15:25

General

  • Target

    f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe

  • Size

    2.0MB

  • MD5

    b7f1de7e2c05646925ec2034aade1560

  • SHA1

    207cc8a93d6300ebe4ec3e644f40efb9dce29f76

  • SHA256

    f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6

  • SHA512

    80d3f672ad0d68db8bd712a132a1f9c3026012345ead099ec65ec58ab07b5746456ae315803d2bd169d419af30b9e42d1ebd770e1120f32e95a601e733a1165f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYg:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yy

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 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe
    "C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.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:3040
    • 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:2708
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2288
    • 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:2688
      • 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:2320
      • 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 SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:800
        • 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:668
    • C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe
      "C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2592
    • 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:2576
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2988F43E-BFCE-4A59-9748-F84A8413642F} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
    1⤵
      PID:2888
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
          PID:320
          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
            3⤵
              PID:824

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\vnc.exe

          MD5

          d41d8cd98f00b204e9800998ecf8427e

          SHA1

          da39a3ee5e6b4b0d3255bfef95601890afd80709

          SHA256

          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

          SHA512

          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

          Filesize

          2.0MB

          MD5

          c62a75930da3ff646ea377c9b82fe310

          SHA1

          bf0efbc383dfe0a2dc46ac416205576485215eff

          SHA256

          34234b3833d1f12b0aace134a172dbb3b96946635e8e41de88ce00679d3f7344

          SHA512

          bb421044b31d3cc1c110934e0793c113167852379bdd62e66ea527fe2801c095fe778d0ae825a454dafb26e7fbd25a10f6503c594725e6cf6ce56e1962a9dd50

        • \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/800-64-0x0000000000300000-0x000000000035E000-memory.dmp

          Filesize

          376KB

        • memory/2288-50-0x0000000000160000-0x00000000001FC000-memory.dmp

          Filesize

          624KB

        • memory/2288-54-0x0000000000160000-0x00000000001FC000-memory.dmp

          Filesize

          624KB

        • memory/2288-49-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp

          Filesize

          4KB

        • memory/2288-47-0x0000000000020000-0x0000000000021000-memory.dmp

          Filesize

          4KB

        • memory/2592-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2592-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2592-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2592-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/2688-46-0x0000000000240000-0x000000000029E000-memory.dmp

          Filesize

          376KB

        • memory/3040-30-0x0000000000350000-0x0000000000351000-memory.dmp

          Filesize

          4KB