Analysis

  • max time kernel
    2s
  • max time network
    108s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-08-2024 20:21

General

  • Target

    3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe

  • Size

    2.0MB

  • MD5

    8ba184c3c80118a9770926647dc8a657

  • SHA1

    35b7cbe031ee425be4db9aee67369224eb79b5b9

  • SHA256

    3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af

  • SHA512

    06f691246473857df2c289443dfb74a2588de21f69b2aed53bdf734a06bf85c093eee671a03a622821732b152726929b3a397d9bb49baf12ae254616a0435789

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYW:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YY

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 4 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 24 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • 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 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe
    "C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.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:2760
    • 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:2616
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2616 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:1644
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:1724
        • 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:1696
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1940
        • C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe
          "C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2624
        • 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:264

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        405KB

        MD5

        b8ba87ee4c3fc085a2fed0d839aadce1

        SHA1

        b3a2e3256406330e8b1779199bb2b9865122d766

        SHA256

        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

        SHA512

        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

        Filesize

        349KB

        MD5

        b4a202e03d4135484d0e730173abcc72

        SHA1

        01b30014545ea526c15a60931d676f9392ea0c70

        SHA256

        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

        SHA512

        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

      • memory/1724-49-0x0000000000CC0000-0x0000000000D1E000-memory.dmp

        Filesize

        376KB

      • memory/1724-49-0x0000000000CC0000-0x0000000000D1E000-memory.dmp

        Filesize

        376KB

      • memory/1940-60-0x0000000000D40000-0x0000000000D9E000-memory.dmp

        Filesize

        376KB

      • memory/1940-60-0x0000000000D40000-0x0000000000D9E000-memory.dmp

        Filesize

        376KB

      • memory/2624-43-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-41-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-31-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/2624-43-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-31-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-41-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2624-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/2760-28-0x0000000000270000-0x0000000000271000-memory.dmp

        Filesize

        4KB

      • memory/2760-28-0x0000000000270000-0x0000000000271000-memory.dmp

        Filesize

        4KB