Analysis

  • max time kernel
    4s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21-08-2024 19:39

General

  • Target

    e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe

  • Size

    2.0MB

  • MD5

    b303cf21786ffb3a53bcabd6e4f0c810

  • SHA1

    213fa018f83eb7017cf22da7679df37b055ddf98

  • SHA256

    e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665

  • SHA512

    8d1d3b2a7653a2c037725d068792e532f18f8d407ed97f7aa1b4b2ba9492d20cbf145a13f8238f1be8aefa875acdb8bbb6f07a898e1d9d3a7b5d02f85c024daf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs: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 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\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe
    "C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.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:2892
    • 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:2728
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:1096
      • 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:2860
        • 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:2960
        • 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:2816
          • 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:2372
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\moASv5Q3ypED.bat" "
            4⤵
              PID:1560
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2952
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1992
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 1512
                4⤵
                • Program crash
                PID:1716
          • C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe
            "C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2604
          • 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:2652
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {01CE3B7F-A1A2-4C32-AFAE-71C386681596} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
          1⤵
            PID:2988
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:1268
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:112
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:2460
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2800
                      • 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:2320

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\moASv5Q3ypED.bat

                      Filesize

                      208B

                      MD5

                      3aca6f75270a25c71319143fa6ff0cbf

                      SHA1

                      efe270c313067448db63b8818696e073d458e266

                      SHA256

                      31690491dcc8ee8e6c3cee79abcb58f737c0476df5c19cce0ab68df2410ec576

                      SHA512

                      6ced37560d9b8e8ac4ac378ebde47734905e7ce308e0e00ed7cd046c7e8b71de44af5e78a7740e101e18f70834a9e1473727a15b2f125137f6ac276631a42fc4

                    • 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\1G254EF8.txt

                      Filesize

                      211B

                      MD5

                      9b9d2ce898b9393f1ae716c36edfc073

                      SHA1

                      3515a5815cfc2151554da509380837d345b1c879

                      SHA256

                      79e9dd5e3d26cc96009bb9d94ddf3ae06ab0bb1f517e068434f51be14b58829d

                      SHA512

                      dd10a5aa2d2184a8e2a0194471ab4de3d7d24b54481e99ea0db5e032c3e6d54f343f9bd70b0f71b6b97db9344476160005fe39fdf163a36d3ebf41e16f04e450

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

                      Filesize

                      2.0MB

                      MD5

                      2072064f185ada70bb22660bb00f202a

                      SHA1

                      c9ab780f64a995a0fdb6880383bec1f841f972c5

                      SHA256

                      8ee44814fede3bf0e5d25816fa0a07bff9d7586f40792f19065ba924aafa50a6

                      SHA512

                      9892151d9921b7b4cb48cb4e792401343aebb4da235f71b164eab8ba7748f89074ab452dd4a7b5559cbd9b6b0a409dc3c85b9ae4081d3db9f6fbc9182625334f

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

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • memory/2460-102-0x0000000000400000-0x000000000049C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2460-98-0x0000000000400000-0x000000000049C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2460-97-0x000007FFFFFDD000-0x000007FFFFFDE000-memory.dmp

                      Filesize

                      4KB

                    • memory/2460-95-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2472-90-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2472-87-0x0000000000400000-0x0000000000420000-memory.dmp

                      Filesize

                      128KB

                    • memory/2472-94-0x0000000000400000-0x0000000000420000-memory.dmp

                      Filesize

                      128KB

                    • memory/2604-31-0x00000000004C0000-0x00000000004E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2604-42-0x00000000004C0000-0x00000000004E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2604-32-0x00000000004C0000-0x00000000004E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2604-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2800-84-0x0000000001090000-0x00000000010EE000-memory.dmp

                      Filesize

                      376KB

                    • memory/2816-59-0x0000000000CE0000-0x0000000000D3E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2860-45-0x00000000001C0000-0x000000000021E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2892-29-0x0000000000D50000-0x0000000000D51000-memory.dmp

                      Filesize

                      4KB