Analysis

  • max time kernel
    4s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2024 07:44

General

  • Target

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe

  • Size

    2.0MB

  • MD5

    2874eed770eb9c67ded0643e813a00a0

  • SHA1

    7b5ed1e6164fca1b0c82b256c238840c965661c7

  • SHA256

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637c

  • SHA512

    203ae06889e57029d663dc56c6f693cb224baa12d1c434672a39ca6dbc62acac2e291de6f4acba9db6ed562a9fb7fe5f5b8c24d6201bc1f377a2dc7df2459562

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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 3 IoCs
  • Loads dropped DLL 9 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).

  • 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
    "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.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:2416
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:340
    • 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:264
      • 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:296
      • 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
        PID:492
        • 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:1896
    • C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
      "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2844
    • 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:2740
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0AD50DAE-A315-4101-A7A0-776FD7030E46} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
    1⤵
      PID:1216
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
          PID:1588
          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
            3⤵
              PID:1764
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k
                4⤵
                  PID:2448
              • C:\Users\Admin\AppData\Local\Temp\windef.exe
                "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                3⤵
                  PID:2068
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                  3⤵
                    PID:2152
                  • 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:1580

              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\HP3EK2HJ.txt

                Filesize

                211B

                MD5

                7b1dd6e4b76687e6bfa6f93f9ced5c74

                SHA1

                0d3ee1b36c4f67bac7ac9982097e0a3c68e8961a

                SHA256

                4b6959750dbf11921b2ad43dd8d303feb859b85d3c97f259ce61678cc06f55cb

                SHA512

                d011c3467804ae715a485795c90a7a1281c8f624874d8ecc39a10f3ad90b0a0a9f7f6d1b957cedbf87270a720a69b6b033a09599fa4143704369d3dcd59c1dc0

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

                Filesize

                2.0MB

                MD5

                4d5f9a18c4062aeaa18436670175ac6a

                SHA1

                fd2d8d78dc52722a0bd284dab700864e80a5b0ca

                SHA256

                b26710f547dc196379262e53cdf30233938b21f0fa7938969e5b16daa1e7a76a

                SHA512

                cc2a4cf3201323a0a6d89e821a333e05e545e1c2bb96380638cf55fd35dd1732f3f6bb7ca186d6ced7a06b5a6e3787b3bcbc8d95023e7c661cb26ecb09c90de8

              • \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/264-48-0x00000000001E0000-0x000000000023E000-memory.dmp

                Filesize

                376KB

              • memory/340-47-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

                Filesize

                4KB

              • memory/340-45-0x0000000000020000-0x0000000000021000-memory.dmp

                Filesize

                4KB

              • memory/340-49-0x00000000004B0000-0x000000000054C000-memory.dmp

                Filesize

                624KB

              • memory/340-53-0x00000000004B0000-0x000000000054C000-memory.dmp

                Filesize

                624KB

              • memory/492-61-0x00000000010A0000-0x00000000010FE000-memory.dmp

                Filesize

                376KB

              • memory/2068-115-0x0000000000DC0000-0x0000000000E1E000-memory.dmp

                Filesize

                376KB

              • memory/2152-98-0x0000000000400000-0x0000000000420000-memory.dmp

                Filesize

                128KB

              • memory/2152-101-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2152-106-0x0000000000400000-0x0000000000420000-memory.dmp

                Filesize

                128KB

              • memory/2416-29-0x00000000008C0000-0x00000000008C1000-memory.dmp

                Filesize

                4KB

              • memory/2448-109-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

                Filesize

                4KB

              • memory/2448-111-0x00000000001F0000-0x000000000028C000-memory.dmp

                Filesize

                624KB

              • memory/2844-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2844-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2844-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2844-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB