Analysis

  • max time kernel
    4s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 05:48

General

  • Target

    c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe

  • Size

    2.0MB

  • MD5

    b26e63bcd9394df3938ee34463e495bb

  • SHA1

    405f3f9da7c1800d0b19959a1ec55ebb9abd7b62

  • SHA256

    c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618

  • SHA512

    635b23b951f31563dd138e11e291d396497c28200d81bae8ad365d0c76c123b4b906ddad06e4a5ab9da36f1106cbb607fa20c117fabfc4593aba0db35fe7574b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYw:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ye

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 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\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe
    "C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.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:2556
    • 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:2712
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2808
      • 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:2732
        • 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:2860
        • 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:1856
          • 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:2960
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\c4z51kaM94SJ.bat" "
            4⤵
              PID:644
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1456
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1692
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 1484
                4⤵
                • Program crash
                PID:2440
          • C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe
            "C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2644
          • 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:2328
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {58E6932C-4124-43A7-858D-19576A95ED96} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]
          1⤵
            PID:2404
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:2044
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:3060
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:2448
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:580
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:2472
                        • 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:2064

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\c4z51kaM94SJ.bat

                      Filesize

                      208B

                      MD5

                      a44432e17f3ca34a8d1c4841844b7e5f

                      SHA1

                      96fd1a64fb608a8e48206320552a3ff79e1d7a9f

                      SHA256

                      cd247861eaef2dacdaaa43be50767b0cb4518631ed9a0c8759f23456a3127c8f

                      SHA512

                      dffa15652b5a39dd00ce573c9d4d0acc2ca80ff64cc3689b77c15192840149afcb265d5e40f6e065366a7b9af5eb013a4084bd07be660645910005565482decc

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

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\3QYFXWQU.txt

                      Filesize

                      211B

                      MD5

                      d606cce2a59a541f1fc552366306d9b0

                      SHA1

                      b08215166ae93db87c5ecfa28f4aace7983e8a96

                      SHA256

                      0c62f32d74d31f6973adbee8fdf640bac51b6a6aaef12a9f8eeb99c57e9306dd

                      SHA512

                      f8e671f41adb4b7c287d18da0726479535f8aa7ae24ea42ac4a77b8adb022156d6c5fae8bf17cbaf966c78548da0e08db87e8107cf884d67df5c5ac7ef80ee8e

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

                      Filesize

                      2.0MB

                      MD5

                      f4221fea9036deedeabbce8cd2f9b7a7

                      SHA1

                      d2b2e2e45e9ed10f133061f8debc29f8dbeb53fe

                      SHA256

                      44bdd36312e7eaffa128acf97b4487072b6ed69475bfe5b33582cdcc3311d6af

                      SHA512

                      c4fb9a498ad6551cf7bf718e9ff3e8ee0e6f6c2a73935767098a51439d2190af0575f481a763964e0e82b983910f3ef88d990d6037aa04e506f006e281d258f6

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

                      Filesize

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • memory/580-85-0x0000000000FC0000-0x000000000101E000-memory.dmp

                      Filesize

                      376KB

                    • memory/1856-60-0x00000000009F0000-0x0000000000A4E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2448-98-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp

                      Filesize

                      4KB

                    • memory/2448-99-0x00000000002B0000-0x000000000034C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2448-96-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2448-103-0x00000000002B0000-0x000000000034C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2556-30-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

                      Filesize

                      4KB

                    • memory/2644-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2644-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2644-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2644-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2732-46-0x0000000000B50000-0x0000000000BAE000-memory.dmp

                      Filesize

                      376KB