Analysis

  • max time kernel
    3s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2024 00:49

General

  • Target

    826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700N.exe

  • Size

    2.0MB

  • MD5

    994a6ad010f19826841be4d903bec400

  • SHA1

    4abad8f214d4928845c1050095e58e1282c51814

  • SHA256

    826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700

  • SHA512

    c5e0d3d01b4da314fa2bc7db2f0769f386c3d5468436dd599a693872a88720e7cc02b31ac66baddd8cd1478e2191a65079d5afb6db659b3a46377ada76728b3c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYe:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg

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 3 IoCs
  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 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 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700N.exe
    "C:\Users\Admin\AppData\Local\Temp\826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700N.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:2084
    • 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:2508
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2864
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2752
      • 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:3032
        • 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:1712
        • 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:668
          • 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:1708
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\dSTZij6sSH2s.bat" "
            4⤵
              PID:3040
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1976
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2280
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 1504
                4⤵
                • Program crash
                PID:2236
          • C:\Users\Admin\AppData\Local\Temp\826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700N.exe
            "C:\Users\Admin\AppData\Local\Temp\826e029c9aeea20223d3dcd3ad31976f5d89e4cd5c21c38475a58cdc59e29700N.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2780
          • 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:2848
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {8A3DCCC8-9CD2-4B94-8B68-827F1E5B3B4A} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
          1⤵
            PID:1844
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:1820
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:804
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:840
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 160
                        4⤵
                        • Program crash
                        PID:484
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2268
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:632
                        • 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
                          3⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:280

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\dSTZij6sSH2s.bat

                      Filesize

                      208B

                      MD5

                      6975520445d6dcbc97c0edb7fe74970a

                      SHA1

                      e8db6b6050b7a68b2daa9f6351ce352c91bcf9c0

                      SHA256

                      5d22ac7327fb135eb90cb3629c37c7d7f1a8ea8720eadc91e29643701d14e71f

                      SHA512

                      6aa2066dad055094c08a4bddd1f6c72680109117eaa0ea9252ba914e7398020b1f3192505deaf1d9c64f77a36ace42d011461cded6dec993f1e9434c068ba3be

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

                      Filesize

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\JD41FVTB.txt

                      Filesize

                      211B

                      MD5

                      64e2a1fdef32aa32c857eb27c5973425

                      SHA1

                      493332ca0a7a8800b651871da4a0831044937d45

                      SHA256

                      d2f1da808085e6e050845b4f618a8db2c812933ddd6775e7b6105711cb8804b4

                      SHA512

                      9c158153dcc8984c9fe15beaf97d0adaf25fccd5722af9da97e2f5b46478029e4672a8ba5b784a4ac31b2f7483a9ee5be1e78b86959e8d6677b58627f0d3555a

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

                      Filesize

                      2.0MB

                      MD5

                      e129151d55dd5b3daaf8e913499c6a3e

                      SHA1

                      2ea25171f678e8cbc08edc0e864f1b49c60d8d97

                      SHA256

                      2ed879ffabfd97138e4989832b1e62fc7d5f30235278e520012348fd0eae12a8

                      SHA512

                      430b690d7c2778579f4196fbac8ba7f6042ce6a142190ed9b53ab8f11e87e8bce412b8a1a8e94b1a8b765232e7042f8ae6f5c3b7b8d2cb4780d2be4b91c8e1b9

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

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • memory/632-94-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/668-58-0x0000000000070000-0x00000000000CE000-memory.dmp

                      Filesize

                      376KB

                    • memory/2084-30-0x0000000000340000-0x0000000000341000-memory.dmp

                      Filesize

                      4KB

                    • memory/2268-85-0x0000000000360000-0x00000000003BE000-memory.dmp

                      Filesize

                      376KB

                    • memory/2780-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2780-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2780-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2780-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/3032-46-0x0000000000030000-0x000000000008E000-memory.dmp

                      Filesize

                      376KB