Analysis

  • max time kernel
    4s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-11-2024 14:10

General

  • Target

    799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4dN.exe

  • Size

    2.0MB

  • MD5

    98e14a04630eb45454969adad2f9cb60

  • SHA1

    0e824009ada1c4a7a5b367807c18f201adca3f5b

  • SHA256

    799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4d

  • SHA512

    fbf5b4fdca4d4db40a67ba95c7ebd647b0a72c7b4f11eb3cd9d9f58040e329f9a2fd831e3ca92c54b54615d81dc02dd87be549b30cd31dabb7b74e959ed909b2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYq:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y4

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 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\799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4dN.exe
    "C:\Users\Admin\AppData\Local\Temp\799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4dN.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:2636
    • 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:2832
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2832 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:3052
      • 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:2548
        • 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:2376
        • 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:756
          • 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:1780
      • C:\Users\Admin\AppData\Local\Temp\799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4dN.exe
        "C:\Users\Admin\AppData\Local\Temp\799c6db9d7230eb6b0acce1885ab60e0a3f3694d22bb2f539b69ace67e533b4dN.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2788
      • 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:2584
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {252A763F-8467-4DBA-8726-F078DD8C051F} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
      1⤵
        PID:2888
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2808
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:1212
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:2796
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:2304
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:440
                    • 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:752

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\S6VSXC4G.txt

                  Filesize

                  211B

                  MD5

                  93bc4d2b8ee5d0a61138683bc5dfc169

                  SHA1

                  6a6699671d06c4c10d0290ecbe980a05adc0a549

                  SHA256

                  285daf4f868bc179353f4200eb339d20279681c1678a1ac8f40406ef2f364740

                  SHA512

                  c27a29965b423bc697b7f67a292f08ca2669238c5ce166f3a4a33005959b60eb34989f422439335054e889dfd9657852d5908dcd1e698acea719e64ff9c5939b

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

                  Filesize

                  2.0MB

                  MD5

                  c4fc1c1c8f4538ea8bef85a084034e18

                  SHA1

                  38dffff4c61c32099d6930f0b24e831c256f648a

                  SHA256

                  33dc15de6a2ad0f8671a8f0f33c3b158d591cd58456f7a47e26a27bf0271ff1c

                  SHA512

                  45f97272abcb23fb8f5bcde8592bc4f5613a0fad63dcea7186a292c03ab441df339e7bbcc722968ff91b22425f7e02fcbb63247d407cdcb6926c49371d0d9681

                • \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/440-113-0x00000000004D0000-0x00000000004F0000-memory.dmp

                  Filesize

                  128KB

                • memory/440-106-0x00000000004D0000-0x00000000004F0000-memory.dmp

                  Filesize

                  128KB

                • memory/440-109-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/756-59-0x00000000012E0000-0x000000000133E000-memory.dmp

                  Filesize

                  376KB

                • memory/2304-103-0x0000000000C40000-0x0000000000C9E000-memory.dmp

                  Filesize

                  376KB

                • memory/2548-46-0x0000000000C50000-0x0000000000CAE000-memory.dmp

                  Filesize

                  376KB

                • memory/2636-30-0x00000000029A0000-0x00000000029A1000-memory.dmp

                  Filesize

                  4KB

                • memory/2788-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2788-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2788-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2788-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2796-83-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                  Filesize

                  4KB

                • memory/2796-81-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/2796-84-0x0000000000400000-0x000000000049C000-memory.dmp

                  Filesize

                  624KB

                • memory/2796-88-0x0000000000400000-0x000000000049C000-memory.dmp

                  Filesize

                  624KB