Resubmissions

16-12-2024 06:33

241216-ha7vjsylds 10

15-12-2024 22:48

241215-2rbyzs1kdz 10

Analysis

  • max time kernel
    3s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 06:33

General

  • Target

    299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5cN.exe

  • Size

    2.0MB

  • MD5

    6fb49dfcb9c5989157d919612eca3340

  • SHA1

    5bed16ffcd23eb7766dae8b58cb5b5a54f2fe0bc

  • SHA256

    299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5c

  • SHA512

    87ec239cd31352d248825dc6536d37d8574702a2dff3d63cdef4a2e73e0575776693bc44c83e98527ad47aeb5d1bc99de5e0eb9ad0412c163510b7a4e5953300

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYY:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y+

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 2 IoCs
  • Loads dropped DLL 8 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.

  • 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 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 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5cN.exe
    "C:\Users\Admin\AppData\Local\Temp\299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5cN.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:2728
    • 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:2820
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1948
    • 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:2816
      • 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:2100
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2028
          • 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:2408
      • C:\Users\Admin\AppData\Local\Temp\299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5cN.exe
        "C:\Users\Admin\AppData\Local\Temp\299e2db9c107fc6e55b5fdf3cc94ceeb26fe3656237526b6f15b614c2a2d4e5cN.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:3028

    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

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

      Filesize

      349KB

      MD5

      b4a202e03d4135484d0e730173abcc72

      SHA1

      01b30014545ea526c15a60931d676f9392ea0c70

      SHA256

      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

      SHA512

      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

    • memory/1948-48-0x000007FFFFFD6000-0x000007FFFFFD7000-memory.dmp

      Filesize

      4KB

    • memory/1948-54-0x00000000001A0000-0x000000000023C000-memory.dmp

      Filesize

      624KB

    • memory/1948-49-0x00000000001A0000-0x000000000023C000-memory.dmp

      Filesize

      624KB

    • memory/1948-46-0x0000000000020000-0x0000000000021000-memory.dmp

      Filesize

      4KB

    • memory/2028-64-0x0000000000B70000-0x0000000000BCE000-memory.dmp

      Filesize

      376KB

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

      Filesize

      128KB

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

      Filesize

      128KB

    • memory/2624-33-0x0000000000080000-0x00000000000A0000-memory.dmp

      Filesize

      128KB

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

      Filesize

      4KB

    • memory/2728-30-0x0000000002B50000-0x0000000002B51000-memory.dmp

      Filesize

      4KB

    • memory/2816-53-0x0000000000870000-0x00000000008CE000-memory.dmp

      Filesize

      376KB