Analysis

  • max time kernel
    1s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-01-2025 06:24

General

  • Target

    f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aaN.exe

  • Size

    2.0MB

  • MD5

    f79eefb90995844a704c85e10d6acf80

  • SHA1

    57ae598f7d019def8f4efc16427d97faef61e64f

  • SHA256

    f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aa

  • SHA512

    ce4b0f21c969d06c5181c1a102c95520f5234e88751d2fa376e70210da371cc75b3039774d378018cfbbc9863b1ea5e7c9aa5e5d7eeabbe1288f163088f3ccec

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYh:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yj

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 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 12 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 5 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 WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aaN.exe
    "C:\Users\Admin\AppData\Local\Temp\f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aaN.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:2736
    • 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:2140
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2620
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2140 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2704
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2560
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2792
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            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⤵
              • Scheduled Task/Job: Scheduled Task
              PID:840
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\um7s79f8z0V1.bat" "
              4⤵
                PID:892
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:1500
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:2300
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:3064
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 1516
                    4⤵
                    • Program crash
                    PID:1908
              • C:\Users\Admin\AppData\Local\Temp\f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aaN.exe
                "C:\Users\Admin\AppData\Local\Temp\f71ff5c20bc5151ac0df6b84e655660a7f9ed8de0729c526827c599bd9f649aaN.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:2616
              • 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:2700
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {61FBC0B4-E91D-40E0-8195-BEE8D76D33B5} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
              1⤵
                PID:1928
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:1984
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:1912
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:1684
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 160
                            4⤵
                            • Program crash
                            PID:2900
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:2964
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:3024
                            • 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:1264

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\um7s79f8z0V1.bat

                          Filesize

                          208B

                          MD5

                          beab4313fe63859e43be747b920ede58

                          SHA1

                          c0784f3dc1d3e8f4f35201865241eca5c784e80a

                          SHA256

                          481fe9218de26d37a80f031a97c8891eee989ff4509503b2e5c2e6149ef203ff

                          SHA512

                          1ea37693c7ad1cf866a1501fe5f196924cfe58e2e10b059188719a603a94cf9b45eba82ab1f27675e7304d9e8962a78909136f1c8bd5a7ad95e4f36badcf4dce

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\OSDTJ48P.txt

                          Filesize

                          213B

                          MD5

                          2cebbeacef5616cce7c0847f87865c71

                          SHA1

                          65db9823b880d6b7d1c79bd0b1e0c006ff9a945a

                          SHA256

                          c42abf935e6e9f9977d82332ca5750abc27ffa16c81a080472601d846655128e

                          SHA512

                          6d47d7283093212ea47d90743d9a0eb2ab8d4a929bb33e318845d0e9e968c7871334d4e5233f2299fd1e0d52945a7567ae8b1e3f49b0f0dc85640d4d81d7faa0

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

                          Filesize

                          2.0MB

                          MD5

                          ca7055f7d47fc9fca0f1c788e383ee5c

                          SHA1

                          565252e0e7f636b71215b012b056116502bcbfd0

                          SHA256

                          0f244ab744f7f768872ef0731ad1a71e19bafa00a69638e408ce8da218a527b3

                          SHA512

                          e499f16f6da1773eee546bbcab4e197d9312235bac48017635bd2845dac42473facebd9f31d7021e80dd7a9c9b6b9131ce4e2a0163cc9e12845815472f257aec

                        • \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/2560-46-0x0000000000D80000-0x0000000000DDE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2616-42-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2616-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2616-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2616-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2736-29-0x00000000003B0000-0x00000000003B1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-60-0x0000000000350000-0x00000000003AE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2964-105-0x00000000002F0000-0x000000000034E000-memory.dmp

                          Filesize

                          376KB

                        • memory/3024-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/3064-127-0x0000000000A20000-0x0000000000A7E000-memory.dmp

                          Filesize

                          376KB