Analysis

  • max time kernel
    3s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2024 00:00

General

  • Target

    8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84.exe

  • Size

    2.0MB

  • MD5

    9e163764e06bf352c692a9c4d152786f

  • SHA1

    b36cf94ab0214191d1eb27b623d4f5a6d65ec99c

  • SHA256

    8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84

  • SHA512

    e0d980a79c82e5efb7b1bd432cd04bb981aee45c7858401059fb2e590c8bdfc3de6118686b28f0af82b44b8a7a0c800664a02c01e23d7b82deaa5890d840ba40

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY1:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YX

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 12 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 6 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 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84.exe
    "C:\Users\Admin\AppData\Local\Temp\8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84.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:2676
    • 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:2484
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2828
      • 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
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2552
        • 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:2896
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1748
            • 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:1188
        • C:\Users\Admin\AppData\Local\Temp\8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84.exe
          "C:\Users\Admin\AppData\Local\Temp\8b32fa130f48a428b415a5be46c6cb1b2004f5ff5d3d432787f926f8e97a8e84.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2060
        • 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:2800
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {3C397575-21CC-431F-B23D-E451B4E1E2F6} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
        1⤵
          PID:2660
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:1952
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:2952
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:2956
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    3⤵
                      PID:2104
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      3⤵
                        PID:320

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

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

                    Filesize

                    2.0MB

                    MD5

                    c29de26a8eb997579c9b4b3b405f186a

                    SHA1

                    1e2a6f7ca2974dfeb7c032df7bdaf4dc00fc339e

                    SHA256

                    ec77a9aeb704ce877acee6c1fd5bb453cdfd1976e69e23d1234cf20611dfc640

                    SHA512

                    659b7b0f981b76926216677913aa146e0dc24757dc852fee7adbf1518ed9517aa856e989ed7466a859402c7e38319cd58aac8333b57392d351fe2c4a5a26f5d1

                  • \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/320-105-0x00000000000C0000-0x00000000000E0000-memory.dmp

                    Filesize

                    128KB

                  • memory/320-98-0x00000000000C0000-0x00000000000E0000-memory.dmp

                    Filesize

                    128KB

                  • memory/320-101-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/1748-58-0x0000000001120000-0x000000000117E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2060-45-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2060-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2060-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2060-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2104-95-0x0000000000A30000-0x0000000000A8E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2552-46-0x0000000000C30000-0x0000000000C8E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2676-30-0x0000000000A10000-0x0000000000A11000-memory.dmp

                    Filesize

                    4KB

                  • memory/2956-108-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

                    Filesize

                    4KB

                  • memory/2956-106-0x0000000000020000-0x0000000000021000-memory.dmp

                    Filesize

                    4KB

                  • memory/2956-109-0x0000000000140000-0x00000000001DC000-memory.dmp

                    Filesize

                    624KB

                  • memory/2956-113-0x0000000000140000-0x00000000001DC000-memory.dmp

                    Filesize

                    624KB