Analysis

  • max time kernel
    4s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 04:44

General

  • Target

    e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe

  • Size

    2.0MB

  • MD5

    0162684567a69530c945aca1ef2891a1

  • SHA1

    4d291c774ef5e00a33d1177d14faf1721d776f5e

  • SHA256

    e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22

  • SHA512

    f91b4ca6ef43febba691b31b25790b30e0413537d28685aa8016bfb552d2ba6cb4999c22bfb4ea98ae675c21f85a2529a36cb1f2f0b3a3e6f733327df377d13e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYY:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YW

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 3 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.

  • 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe
    "C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.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:2140
    • 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 use of WriteProcessMemory
      PID:2152
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2548
      • 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:2572
        • 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:1728
        • 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
          PID:1924
          • 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:1824
      • C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe
        "C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2580
      • 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:2936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      349KB

      MD5

      b4a202e03d4135484d0e730173abcc72

      SHA1

      01b30014545ea526c15a60931d676f9392ea0c70

      SHA256

      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

      SHA512

      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

      Filesize

      405KB

      MD5

      b8ba87ee4c3fc085a2fed0d839aadce1

      SHA1

      b3a2e3256406330e8b1779199bb2b9865122d766

      SHA256

      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

      SHA512

      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

    • memory/1924-58-0x00000000000A0000-0x00000000000FE000-memory.dmp

      Filesize

      376KB

    • memory/2140-30-0x0000000000900000-0x0000000000901000-memory.dmp

      Filesize

      4KB

    • memory/2572-46-0x0000000000950000-0x00000000009AE000-memory.dmp

      Filesize

      376KB

    • memory/2580-43-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/2580-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/2580-31-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/2580-33-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB