Analysis

  • max time kernel
    4s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    06-07-2024 03:18

General

  • Target

    d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9.exe

  • Size

    2.0MB

  • MD5

    966b5ad554c663807232dccba0032e5e

  • SHA1

    9d2b0b8bae82bab8f7632f40302900350b036855

  • SHA256

    d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9

  • SHA512

    030e2c8456b72c98f3ee4e792924a5233f076ea46d15527e54f6cacef4035df9168ccd17782f29d857317333104693a5b45248609d84e6c51e9bd9380e2d0b33

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYm: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\d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9.exe
    "C:\Users\Admin\AppData\Local\Temp\d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1052
    • 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:2196
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1312
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:2296
      • 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:112
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2956
          • 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:1964
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\dhUHJLtcYrE7.bat" "
            4⤵
              PID:1464
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1600
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1020
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2336
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 1444
                  4⤵
                  • Program crash
                  PID:1644
            • C:\Users\Admin\AppData\Local\Temp\d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9.exe
              "C:\Users\Admin\AppData\Local\Temp\d5a6c33ad798f13bfa90944b6b0a6452d166e170be8b94dbfa29b6ab636b36f9.exe"
              2⤵
                PID:2996
              • 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:2844
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {0F1B5F17-1641-4EC8-BD36-0D3DDF3B4376} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
              1⤵
                PID:2620
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:1608
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:1748
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:1584
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:2280
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:812
                            • 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:684

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\dhUHJLtcYrE7.bat

                          Filesize

                          208B

                          MD5

                          c614e8ba95f9e95a374b4ec83c6eca7d

                          SHA1

                          735041c9259aa8cf8312cdae9b93b8606b0e9a43

                          SHA256

                          46a5aab071ff0282de0fad28a8259867e778ef1100459f92afef8da9ab0658e5

                          SHA512

                          341e861c2c618b942c346a160073d58698e71c87e0db36058ecf47fc45fc8f1b71b6a8743bb05f6a9255c01984daf01fdee393dcb9f196eb0d3ef8be1f472687

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

                          MD5

                          d41d8cd98f00b204e9800998ecf8427e

                          SHA1

                          da39a3ee5e6b4b0d3255bfef95601890afd80709

                          SHA256

                          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                          SHA512

                          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\0SN1LVG8.txt

                          Filesize

                          211B

                          MD5

                          7b8c7b17ac0700017b1c1ab3a78d76fb

                          SHA1

                          d11fef50b265d61755b6563bf72081c1d9174914

                          SHA256

                          847ba1a97efd4c6baafdc0e7b020e6e037f42fe4a03b0bff06d81dca169f8821

                          SHA512

                          173656ad615c5b1199ec80c47f756f3c18ec2f9fec53b7e222a858477915c15c096abfca23ba9c53eda292c7ec4cdeb701a62cbc3d0f399456a6339f5e8a0645

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

                          Filesize

                          2.0MB

                          MD5

                          23116e06c953eb267441f724b7647f81

                          SHA1

                          b1ecb74a18a4fe800d92d2cb3f9b5c94c45bc831

                          SHA256

                          40d728ee966a92f9263cd44a5c9a7e03c0a6d725c4765029e26e6b93c0cb73f5

                          SHA512

                          9db11a259f1440c57248db16fa2d9cb8bc4ffc9ecad2e29005bbeefa11189e1f35e6d16bf57a6eb98f480d01da18c53d6ce72cc66dea031f037b67933231dd14

                        • \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/812-105-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/1052-28-0x00000000006F0000-0x00000000006F1000-memory.dmp

                          Filesize

                          4KB

                        • memory/1312-46-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                          Filesize

                          4KB

                        • memory/1312-48-0x00000000002B0000-0x000000000034C000-memory.dmp

                          Filesize

                          624KB

                        • memory/1312-53-0x00000000002B0000-0x000000000034C000-memory.dmp

                          Filesize

                          624KB

                        • memory/1312-44-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/1584-125-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

                          Filesize

                          4KB

                        • memory/1584-126-0x0000000000270000-0x000000000030C000-memory.dmp

                          Filesize

                          624KB

                        • memory/1584-130-0x0000000000270000-0x000000000030C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2280-99-0x00000000009B0000-0x0000000000A0E000-memory.dmp

                          Filesize

                          376KB

                        • memory/2296-54-0x0000000000E00000-0x0000000000E5E000-memory.dmp

                          Filesize

                          376KB

                        • memory/2956-64-0x0000000000C90000-0x0000000000CEE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2996-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2996-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2996-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2996-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB