Analysis

  • max time kernel
    4s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2024 22:36

General

  • Target

    7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1.exe

  • Size

    2.0MB

  • MD5

    06feb8ea2c84bfe15db1fc38a8cedbb7

  • SHA1

    54f5e74721cf1165ffb0e5b4ef781a624c302285

  • SHA256

    7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1

  • SHA512

    6d4463973032849b04fabc4dbce5c40cf5b0fe18de1cdcb77eac3ad3684305f808839a0b93cfdeef398257b650d67f65036963564d63cab06ef41dc6de364e46

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYj:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YF

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 1 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 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\7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1.exe
    "C:\Users\Admin\AppData\Local\Temp\7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1.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:2696
    • 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:2412
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2260
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2748
      • 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:2720
        • 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:672
        • 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:1084
          • 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:2508
      • C:\Users\Admin\AppData\Local\Temp\7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1.exe
        "C:\Users\Admin\AppData\Local\Temp\7ba37e4aa263bdfa0d24ede59f1d767ed6c5b759268660b2bf7b92f45a77c9b1.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2924
      • 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:2980
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {EAAC2523-F451-4D4B-B1FD-83BFB5811FE3} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
      1⤵
        PID:1952
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2004
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:2852
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:844
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:2524
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:636
                    • 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:2288

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\HKH99OM0.txt

                  Filesize

                  209B

                  MD5

                  c4a7a239f6bf0a444f79837cf1621740

                  SHA1

                  499fee2ec10d3ba37c90d30a448b693a192e279a

                  SHA256

                  e003fff0217fefe4f7eea12cda5fa1d39203adff9898ca15059b5261f983d7ab

                  SHA512

                  90fd0a2fd2f1c652779ed74b83ae449c5de0686f010d32ff57d91df178c3852872f4003e87eb6c65d0e7e5ee590ef24d2bc6a15c90c64eb86332dd65c08e3c1f

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

                  Filesize

                  2.0MB

                  MD5

                  51157f08560de9155afc517efc4fe0cc

                  SHA1

                  90aadc397b7f4c53699ffaa8e55207423a501293

                  SHA256

                  3108772ceb291dbd8efb9a229fe6bc8bdf4e31179bc74db790042924fb38c510

                  SHA512

                  caa47cdbb2ce85d32630f12a9326837b50f3caeabfcf07a8626a57d24fb74cf466d6e4883641ec2ac56fe2dac1df47f1d38c247ee4f0c9db8cf3784820846147

                • \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/636-89-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/636-86-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/636-93-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/844-99-0x0000000000470000-0x000000000050C000-memory.dmp

                  Filesize

                  624KB

                • memory/844-98-0x000007FFFFFDD000-0x000007FFFFFDE000-memory.dmp

                  Filesize

                  4KB

                • memory/844-96-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/1084-58-0x0000000000E50000-0x0000000000EAE000-memory.dmp

                  Filesize

                  376KB

                • memory/2524-95-0x0000000001100000-0x000000000115E000-memory.dmp

                  Filesize

                  376KB

                • memory/2696-30-0x00000000005F0000-0x00000000005F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2720-46-0x0000000000370000-0x00000000003CE000-memory.dmp

                  Filesize

                  376KB

                • memory/2924-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

                  Filesize

                  128KB

                • memory/2924-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

                  Filesize

                  128KB

                • memory/2924-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2924-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

                  Filesize

                  128KB