Analysis

  • max time kernel
    3s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 22:08

General

  • Target

    508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe

  • Size

    2.0MB

  • MD5

    11b481489c61d4fb6ae5511bd2d047d8

  • SHA1

    2979994b6a9c6867579dc6339c50582ca675e8cb

  • SHA256

    508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99

  • SHA512

    7453f154fc7df1e23a97461602eec61038593ece8eb45038760f328d23191a7bcb078a0a0504dddaf93ba4e737ab05cc415c2e036e11cd20d439833bc24da999

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY2:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

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 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 2 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 3 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\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe
    "C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.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:2348
    • 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:1632
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2864
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2936
      • 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:2072
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1692
          • 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:2900
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\6bF2nv6wlxe9.bat" "
            4⤵
              PID:2184
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2176
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2572
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1044
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 1496
                  4⤵
                  • Program crash
                  PID:2168
            • C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe
              "C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2796
            • 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:2700
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {37A21040-530C-457B-A8DE-A73F9158DD9C} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:2568
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1976

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\6bF2nv6wlxe9.bat

                Filesize

                208B

                MD5

                57e37ae049f9c52630e9bbdbd53d9562

                SHA1

                b005db2c98cc6d4376bd21083966ed23aea50967

                SHA256

                e6de99a1a0f5967365120810ba15582db40373ee56d19b12a89fed691baaadd2

                SHA512

                8d0d6721f5f1c4f9510e4646fae69626fbe6b589631fdfb1d731ada8d67b58c0de749e86eca8d0c58ca224916b83a5d47571d985af2f0440347f47ac2c5f6fb8

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

                Filesize

                405KB

                MD5

                b8ba87ee4c3fc085a2fed0d839aadce1

                SHA1

                b3a2e3256406330e8b1779199bb2b9865122d766

                SHA256

                4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                SHA512

                7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                Filesize

                349KB

                MD5

                b4a202e03d4135484d0e730173abcc72

                SHA1

                01b30014545ea526c15a60931d676f9392ea0c70

                SHA256

                7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                SHA512

                632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                Filesize

                2.0MB

                MD5

                61b05c77e301e8e9432524d10d339018

                SHA1

                f6080c5be1e535fde4b5f840b7a8c1dc2d360385

                SHA256

                a13db8a370c4ce71fb40c62ce945942b4d6769d9ed8f3ebf9b1911cfda080e60

                SHA512

                c5ce32a382822b6638b5d29eb4688f50b437b3d09bbfaa5c33a0603d8f8185b3af362f7c38ba2242ef616982cb95d9085a73d79fb4f6b96452edcf0dbee925c9

              • memory/1692-63-0x0000000000C10000-0x0000000000C6E000-memory.dmp

                Filesize

                376KB

              • memory/2348-30-0x0000000002690000-0x0000000002691000-memory.dmp

                Filesize

                4KB

              • memory/2796-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2796-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2796-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2796-42-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2864-50-0x0000000000180000-0x000000000021C000-memory.dmp

                Filesize

                624KB

              • memory/2864-43-0x0000000000020000-0x0000000000021000-memory.dmp

                Filesize

                4KB

              • memory/2864-45-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                Filesize

                4KB

              • memory/2864-46-0x0000000000180000-0x000000000021C000-memory.dmp

                Filesize

                624KB

              • memory/2936-53-0x00000000001E0000-0x000000000023E000-memory.dmp

                Filesize

                376KB