Analysis

  • max time kernel
    7s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 23:28

General

  • Target

    f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e.exe

  • Size

    2.0MB

  • MD5

    8a7a833cd2f827f64c55ceb0e8f7c635

  • SHA1

    1349e783e9ee3f9709069f443e8a7a440ff58795

  • SHA256

    f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e

  • SHA512

    47da5635b0b07bbc4324bb5bc494a4bec0e020f94d8c33261f947975c2d7769505299548be6d4a6955b934f2437b3cb6b4512b493116e71209501758f0b8fe62

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYi:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YI

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 7 IoCs
  • Loads dropped DLL 21 IoCs
  • Enumerates connected drives 3 TTPs 46 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 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 13 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 5 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e.exe
    "C:\Users\Admin\AppData\Local\Temp\f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e.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:3068
    • 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:2716
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2320
      • 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:2656
        • 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:1740
        • 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:1664
          • 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:1784
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\ISuwCQClVoI6.bat" "
            4⤵
              PID:1280
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2436
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1792
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 1492
                4⤵
                • Program crash
                PID:2416
          • C:\Users\Admin\AppData\Local\Temp\f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e.exe
            "C:\Users\Admin\AppData\Local\Temp\f87edcf93e2be709cf12616a0c21e2204d409def6a1c0528a1705fd554f3467e.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2840
          • 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:2536
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {C7A26673-0576-463E-8A09-9E18299719CA} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
          1⤵
          • Suspicious use of WriteProcessMemory
          PID:2860
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Enumerates connected drives
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2332
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:2964
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k
                4⤵
                • Maps connected drives based on registry
                PID:532
            • C:\Users\Admin\AppData\Local\Temp\windef.exe
              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
              3⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:592
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
              3⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:1096
            • 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⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1404

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\ISuwCQClVoI6.bat

          Filesize

          208B

          MD5

          47c79edec19b423cd25c6a4d47db27f8

          SHA1

          04d3fac115aeb62809d3413827cf22c4e8fb8e8b

          SHA256

          73dfee85aa3626467cc93710de989d3813f6e51e2251cd1f11dc6b660351c7f2

          SHA512

          1a7d081f6cce0101e51ac897ed1e356e1614664e7404caee87d7ffd84813ad44dc4191e9395c88cc53d47b38aea036316ce71777e72d98ca9b59ecb59cd156ae

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

          Filesize

          2.0MB

          MD5

          a38952663aa0d7f79a91884273f90738

          SHA1

          69e359aa35dbc0e25f86e52c372f6f41dc93f248

          SHA256

          023fbc19ae44700da4306f09bb4273eb32cf5ee11c53cb9d0c5e3ec5ee2b16fd

          SHA512

          8d3b50b7eea92fb7b167a5f0ce445eee979e5f9840da86fc7b39d761180cc91e1fc98bafa6a50a6ebdbe40cdcfa28e1343771b344bc375d8ac32525337875040

        • \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/532-84-0x0000000000290000-0x000000000032C000-memory.dmp

          Filesize

          624KB

        • memory/532-91-0x0000000000290000-0x000000000032C000-memory.dmp

          Filesize

          624KB

        • memory/532-83-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

          Filesize

          4KB

        • memory/532-81-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/592-90-0x0000000000260000-0x00000000002BE000-memory.dmp

          Filesize

          376KB

        • memory/1096-94-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/1096-97-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/1096-101-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/1664-60-0x0000000001190000-0x00000000011EE000-memory.dmp

          Filesize

          376KB

        • memory/2656-46-0x0000000000B00000-0x0000000000B5E000-memory.dmp

          Filesize

          376KB

        • memory/2840-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/2840-31-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB

        • memory/2840-43-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB

        • memory/2840-33-0x0000000000080000-0x00000000000A0000-memory.dmp

          Filesize

          128KB

        • memory/3068-29-0x0000000001100000-0x0000000001101000-memory.dmp

          Filesize

          4KB