Analysis

  • max time kernel
    4s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    03-07-2024 00:07

General

  • Target

    8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe

  • Size

    2.0MB

  • MD5

    769ded1ba7b202918ff301a726156481

  • SHA1

    a21c5a68bb2c9e8a89dafa1bad6fda99d3196ba4

  • SHA256

    8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4

  • SHA512

    9644f639c322fb1a3d5b78ebcd1e1c8fab39e3313aceca713d25aae331cc54d178e26144c52b0e19a7c83053f2fb48fd3ed1459358cf257a5de87819db18f4b4

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk: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.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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.

  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe
    "C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3024
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:3040
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:2616
      • 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:2684
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2852
          • 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:1948
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\0IKYcAp87Tey.bat" "
            4⤵
              PID:884
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1524
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1708
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1376
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 1532
                  4⤵
                  • Program crash
                  PID:3068
            • C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe
              "C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe"
              2⤵
                PID:2628
              • 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⤵
                • Scheduled Task/Job: Scheduled Task
                PID:2748
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {B44E0C9E-EBE4-4C22-AFFD-22595C3ACD80} S-1-5-21-39690363-730359138-1046745555-1000:EILATWEW\Admin:Interactive:[1]
              1⤵
                PID:1812
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:664
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:300
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:2228
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:2976
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:1272
                            • 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:2260

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\0IKYcAp87Tey.bat

                          Filesize

                          208B

                          MD5

                          33de9fad6d7040e8239fff1ca419fa3d

                          SHA1

                          9fa8e4ae7b34079bbd28222706ced31e3513bd02

                          SHA256

                          8bb84c592b51c6540f50e3d8b848748c989375f737c2fbcbba2a9f0f27528804

                          SHA512

                          a92db98a3615591af47dcd97b398485d6966b8ceed0b4a8d50ac350751db6b80accdd1d3b189c10f0af0ced813cf1dca333fa7321310d82b7c41de0ae3f22c45

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\MTAYM3ME.txt

                          Filesize

                          211B

                          MD5

                          2b1d43d75878d59d7da25ee20a512b55

                          SHA1

                          ccf1304b06a7119f3c2363b6a4f0bce5568d13d4

                          SHA256

                          ac796099ee24713a7f3c20961ee552f2fa1098245e213a7109d36a2bf85fe21c

                          SHA512

                          ef2aacc74e18bb8e96015bcdd594b68fcdc602f7f5980d7d88284c106f19ee12c5d0af31fa2084ea31959745802b769d103c35083914f375d76a5b53ebb89a72

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

                          Filesize

                          2.0MB

                          MD5

                          ffacfd12723631bcf6ab667b5c172b1c

                          SHA1

                          d7aadcd33613fb2fabf95c8d435d8b184b092a7d

                          SHA256

                          1ef443f303fb584ed97a3454c91d331302fd9b31dc9d92d7f9c2bfcbbf4aa86d

                          SHA512

                          5aca74523251205d0c89147ad4d7988a6fbaf260b62d848a860c1f4c4657bf37bf5db6857a72f2f7ef4a0848724e08a8d0e6a2bc637eaa292492feab6baa0c6d

                        • \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/1272-105-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2228-117-0x00000000003D0000-0x000000000046C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2228-113-0x00000000003D0000-0x000000000046C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2228-112-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

                          Filesize

                          4KB

                        • memory/2392-29-0x00000000007A0000-0x00000000007A1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2616-54-0x0000000000D50000-0x0000000000DAE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2628-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2628-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2628-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2628-42-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2852-64-0x0000000000B50000-0x0000000000BAE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2976-99-0x0000000000880000-0x00000000008DE000-memory.dmp

                          Filesize

                          376KB

                        • memory/3040-44-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/3040-46-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                          Filesize

                          4KB

                        • memory/3040-53-0x0000000000480000-0x000000000051C000-memory.dmp

                          Filesize

                          624KB

                        • memory/3040-47-0x0000000000480000-0x000000000051C000-memory.dmp

                          Filesize

                          624KB