Analysis

  • max time kernel
    4s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 04:49

General

  • Target

    e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6.exe

  • Size

    2.0MB

  • MD5

    966ad4700af58274a7db964dd7b70bca

  • SHA1

    3a952f755532b6f69c39a6bc8223ef9d74804e86

  • SHA256

    e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6

  • SHA512

    ab7acf0ae966618415ce256020d6ebb481b12840d55d1951c24d12f3ab642a10624cc2c9b87c7800098be02e25f0ca0ee9fb0c17fc8fa391648b09a887d5379d

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY5:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y7

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 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 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.

  • 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6.exe
    "C:\Users\Admin\AppData\Local\Temp\e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6.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:2100
    • 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:2328
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2648
      • 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:1380
        • 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:1524
        • 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:836
          • 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:2096
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\6VutrlrQMfHV.bat" "
            4⤵
              PID:1712
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1720
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1616
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1516
                4⤵
                • Program crash
                PID:2380
          • C:\Users\Admin\AppData\Local\Temp\e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6.exe
            "C:\Users\Admin\AppData\Local\Temp\e3f7a1c37de27b25faa99ec115346d9ec34f51517f12beab5acc8b81402ba2b6.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2660
          • 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
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {0D1CCF78-532F-46E7-B38B-661ABD81290B} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
          1⤵
            PID:808
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:2872
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:2356
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:2028
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2912
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:296
                        • 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:992

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\6VutrlrQMfHV.bat

                      Filesize

                      208B

                      MD5

                      f328c766fc2c0d991103f48541ef2b70

                      SHA1

                      3607a47a9276a89e7991f989e0dd3aa77e8e12f8

                      SHA256

                      c2c8a90e6a5bdf8876b359dbb767f1d3838236e199c2474e7c724d9f760b9a50

                      SHA512

                      72f76f488af8f4ba90b85692d1c7f7e40ad0375cd09863739eb9c56ae7253a1f98b7ca2f105cf7abac3d388bcace4963f8b88eaf97e111bcf293d3e45ed21c1b

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Q20CUWRZ.txt

                      Filesize

                      213B

                      MD5

                      2f84503c2dda2ef18b941f140bbc2675

                      SHA1

                      15fcdf6695798f4a7b0e83d8583cf9a37dc7678b

                      SHA256

                      36194f1b1fcd3abaaf4afb492baeba0ed89b5e789d19f222b313a9503b6b01e8

                      SHA512

                      f9c298a727bac49133217ede65ae19d3a69e9b1b16fa772748bd464c9f418c59e706dd64c4f9c85b3cfe6dc39b6871a5249bba0d90ff610792618bfc31aea3cf

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

                      Filesize

                      2.0MB

                      MD5

                      29e8c83608937ee36b8067b97f632838

                      SHA1

                      3aa13be23b6ca41607df410ad1788ec279857744

                      SHA256

                      008d49d7b55e44193994c8ef19abd46ffd5b10943f0b0e02c4453c62574d07f9

                      SHA512

                      e993ba7380a51c508df8dc7e4f5693d619b1919243cbd5ab2ec806f74599541ad7f333d31f67e2c05e98e96a5fddec7ec82544114c8671e506a6db190378e63c

                    • \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/296-98-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/296-95-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/296-102-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/836-58-0x0000000000A80000-0x0000000000ADE000-memory.dmp

                      Filesize

                      376KB

                    • memory/1380-49-0x0000000000F20000-0x0000000000F7E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2028-108-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

                      Filesize

                      4KB

                    • memory/2028-106-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2028-109-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2028-113-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2100-30-0x0000000000900000-0x0000000000901000-memory.dmp

                      Filesize

                      4KB

                    • memory/2660-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2660-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2660-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2660-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2912-105-0x0000000000020000-0x000000000007E000-memory.dmp

                      Filesize

                      376KB