Analysis

  • max time kernel
    3s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-10-2024 19:55

General

  • Target

    d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52N.exe

  • Size

    2.0MB

  • MD5

    732ee005431c7c06b67416bfbbc7dd70

  • SHA1

    a303e5e5f4a08dcdb8ce66d18646dc47ae9fc13d

  • SHA256

    d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52

  • SHA512

    b2deb1eab4ecfda2c6c0191fee7c939847bb7b71a424c26375b1c41bd06ec40b124f7170b55bd9acf62f2f094023fc83f1c8126ef679e628e1cf3f4e60a1a75c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYV:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

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 4 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 2 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.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52N.exe
    "C:\Users\Admin\AppData\Local\Temp\d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52N.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:2024
    • 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:1896
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1756
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2900
      • 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:2840
        • 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:1440
        • 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:2780
          • 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:1652
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\69AfSjF0AorG.bat" "
            4⤵
              PID:1476
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:980
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 1472
                4⤵
                • Program crash
                PID:1080
          • C:\Users\Admin\AppData\Local\Temp\d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52N.exe
            "C:\Users\Admin\AppData\Local\Temp\d9c83214623af5c76e585f89161bd623e3f9efc389b9f0987dafe5e75a098c52N.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2680
          • 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:2808
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {F5318A19-8041-4989-8093-1AEAD2ECF5B8} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
          1⤵
            PID:2392
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:2008
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:1544
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:1044

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\69AfSjF0AorG.bat

                  Filesize

                  208B

                  MD5

                  eaaa68fe00009912bc1e2d9e8baab980

                  SHA1

                  1364e5bd4da49c0a9e60d93815a85fd51b5e5549

                  SHA256

                  5224a153fd47d41f2953f423bd0a3e5a8f43ea803198a592fe1283c087589b73

                  SHA512

                  94484bd4b1ec36284067cf287f3e6ffb657d97d220022f7529689da32a6d0790df0533a4dc41634ff439cd33c98f565ef39bad5690b93c4224bdbaf91ed07ab7

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

                  Filesize

                  2.0MB

                  MD5

                  da7b2f87ad2f950ece7da35562f3f26b

                  SHA1

                  29eeb7353242dfda8221dc0a1ecae4cf58eaebf7

                  SHA256

                  681cd2b3a546aebc1f5b4f17e1c378cf1be5e57b6f6167acff7bd274555adc3c

                  SHA512

                  9c9e4fc2a23962f132cc6cbabac2785a8dd0cc3b53734f023f39597cfc524d400ff32b15724b495451345f976e2dc4b0d69f8f00afcdedb482bf293329d0b972

                • \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/2024-43-0x00000000004C0000-0x00000000004C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2024-62-0x00000000004C0000-0x00000000004C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2680-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2680-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2680-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2680-29-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2780-58-0x00000000010D0000-0x000000000112E000-memory.dmp

                  Filesize

                  376KB

                • memory/2840-49-0x0000000000FB0000-0x000000000100E000-memory.dmp

                  Filesize

                  376KB