Analysis

  • max time kernel
    3s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 10:28

General

  • Target

    dttcodexgigas.exe

  • Size

    2.0MB

  • MD5

    77efa5be74c9b2bb296a78610131bac1

  • SHA1

    f498f77ee46bee9565ac5706e3b8da5dedd3e5ef

  • SHA256

    43ed13d26dcd5c680e6b5a9ec646113dc52ba11bb33d91e3162169e9168437bb

  • SHA512

    7f4f7966b88921eb373b7ce634fb21853ef2d11b5cb4ae4ff1bc28d115a8ae742f826fc5da5c72182626d7cf9cfea00de740f7da94277bcad285ee44d20f6137

  • 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.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 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 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe
    "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.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:2344
    • 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:1904
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2332
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2860
      • 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:1952
        • 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:272
        • 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:992
          • 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:536
      • C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe
        "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2812
      • 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:880
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {0DE757B7-1EA5-4784-9D1D-D445B29F3D24} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
      1⤵
        PID:904
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:1640
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:2956
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:2196
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:2700
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:1032

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  2.0MB

                  MD5

                  2e22fd5f6b66e8bdaef5915ce6e32163

                  SHA1

                  e92b71a9fcdf28281e83f93e8f43aa6c55b83ba2

                  SHA256

                  c76f1c07c48f214fc0d2e5479775e242f38e01f079c6ce89c882cf07a1ea8fd7

                  SHA512

                  404eb6eada6b4ba75032279ea12503bbb305cea0d2e624c954b5aa5290272164eacd926734cd346ccd2ec50cab685c2c08415149d43b26ef8544018b81118b01

                • \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/992-59-0x0000000000030000-0x000000000008E000-memory.dmp

                  Filesize

                  376KB

                • memory/1032-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1952-30-0x0000000073C7E000-0x0000000073C7F000-memory.dmp

                  Filesize

                  4KB

                • memory/1952-31-0x00000000009A0000-0x00000000009FE000-memory.dmp

                  Filesize

                  376KB

                • memory/2196-84-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/2196-92-0x00000000000D0000-0x000000000016C000-memory.dmp

                  Filesize

                  624KB

                • memory/2196-87-0x00000000000D0000-0x000000000016C000-memory.dmp

                  Filesize

                  624KB

                • memory/2196-86-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2344-32-0x00000000006C0000-0x00000000006C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2700-94-0x0000000000A30000-0x0000000000A8E000-memory.dmp

                  Filesize

                  376KB

                • memory/2812-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2812-35-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2812-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2812-45-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB