Analysis

  • max time kernel
    3s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 15:16

General

  • Target

    5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281N.exe

  • Size

    2.0MB

  • MD5

    7f6882479e1eaf56f07e8bc9f62b7be0

  • SHA1

    b937afa72d7bbde1ef1d5095e46d8383713e195f

  • SHA256

    5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281

  • SHA512

    6ffe2f9b9dddccb1a4fe85e25c8134d550e1a3053cc3473f829a47a06d2e1f0edf57d1d4ebf0d1668599126856667001af6b8d100656024d8a26fc217d6a17fe

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYS:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y8

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 4 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 7 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 WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281N.exe
    "C:\Users\Admin\AppData\Local\Temp\5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281N.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:3032
    • 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:2748
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2864
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:1428
      • 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:2532
        • 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:2488
        • 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
          PID:2280
          • 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:2364
      • C:\Users\Admin\AppData\Local\Temp\5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281N.exe
        "C:\Users\Admin\AppData\Local\Temp\5665cf05be114932fb20c7a9dbeaa46f68e689f1f76cf1d03ddcc4e1ca09d281N.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2660
      • 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:2572
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {21619DC9-8237-4CB3-BAF3-BC826EB32090} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
      1⤵
        PID:1944
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:1648
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:1088
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:3020
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:3064
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:2188
                    • 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:588

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                  MD5

                  d41d8cd98f00b204e9800998ecf8427e

                  SHA1

                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                  SHA256

                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                  SHA512

                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\7P1Y0P1S.txt

                  Filesize

                  209B

                  MD5

                  24ca3df195fb99e0cb3e32826ab1b79e

                  SHA1

                  a7988bb8b24165b42b26e3b4ecc20e5d70c1f279

                  SHA256

                  d0c396f32f0c1b5c0a9def170dc4be02f6d3bdfa0dd5ae53b6c30fea51a8f8aa

                  SHA512

                  2d9ccb6fa8c40350a46226b48294349961325cb6af5605f969bc5a3b38686425d02527266086de03e4bed7438c827a6106e9ea43bcc15ec7e600ff8a5ef925bb

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

                  Filesize

                  2.0MB

                  MD5

                  fbb51189cff067521f902914e72b8125

                  SHA1

                  3213055705121f7e2ae278514bc12e6ceb7fb9b8

                  SHA256

                  53ecad55daf3f6594a6db6f7fafa38b7136c80acc6a8239cd04eaa378146aa66

                  SHA512

                  0d779d99e36613caf1d313698105415e3ba7dcaadd640bbae9f464a6634f367cb47b50e66fdf40a5cfe77d5df1165cac7f3617bef5ae69499b98dd5a5457a08b

                • \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/2188-98-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2280-60-0x0000000000D30000-0x0000000000D8E000-memory.dmp

                  Filesize

                  376KB

                • memory/2532-46-0x0000000000D40000-0x0000000000D9E000-memory.dmp

                  Filesize

                  376KB

                • memory/2660-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2660-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2660-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2660-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/3020-101-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/3020-103-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

                  Filesize

                  4KB

                • memory/3020-108-0x00000000003D0000-0x000000000046C000-memory.dmp

                  Filesize

                  624KB

                • memory/3032-30-0x0000000000740000-0x0000000000741000-memory.dmp

                  Filesize

                  4KB