Analysis

  • max time kernel
    3s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    24-08-2024 13:57

General

  • Target

    d2177efd1d7368e486ae807ca92b1630N.exe

  • Size

    2.0MB

  • MD5

    d2177efd1d7368e486ae807ca92b1630

  • SHA1

    6b1d87d7a89e9d68b0b353c3d70fca178a6604e3

  • SHA256

    8b270fa6249500fa2ef164951e40a87999a94fb08b57b514f09337e3c368b60f

  • SHA512

    35c38c55b360c59ede5e7149eaf13a238bbf3fa6445854ad2a1cd588369204a19267880ac40e63d6b33da080349563c5d3e48ad59f7c892403638b3db8799df6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYx:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

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
  • 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 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\d2177efd1d7368e486ae807ca92b1630N.exe
    "C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.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:2432
    • 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:2252
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2800
    • 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:2748
      • 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:2972
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2304
          • 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:1800
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\11zwd4iRjM8x.bat" "
            4⤵
              PID:1640
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2584
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:524
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:888
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 1504
                  4⤵
                  • Program crash
                  PID:2396
            • C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.exe
              "C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2880
            • 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 {2632794D-C375-4AFB-9701-BF817E6416AA} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:1700
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2976
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:2416
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2024
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2208
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2232
                          • 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:2600

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\11zwd4iRjM8x.bat

                        Filesize

                        208B

                        MD5

                        193993294b227f0d051351d5ca2a706e

                        SHA1

                        fa8e57f83aa10dce9e313eda972fe2ec31b82784

                        SHA256

                        672a274b11e976050a3e271cabbccbebc2df63a80a78722743ff8f884dd89ba3

                        SHA512

                        b5fc951d28a36b6902940169e4da51adcd1bbfb5f97f93ff9e9841dd5d1f5c3e46192fab527454163e6ce1dcbb0c0d9af76f941894be883e8707cbea6c49fb42

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

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\45BDB8J1.txt

                        Filesize

                        211B

                        MD5

                        9cbe4a537fb271201f17e1d0e2304e70

                        SHA1

                        aa81af63cc3f6206020ee19fbea51f1972200e37

                        SHA256

                        8bd8be1897a0be4fd34dbdf49d02bef304a74ca75957b06e9b9b60bd5b50d39f

                        SHA512

                        6993e9162bc6fabcfc7acab0ce5736c33fbf5c871662ca95be89ceb21333a8a1294ca4ebae678bb172353f109186a49585b8de16dcd8c3fe8b1ea71cab620e49

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

                        Filesize

                        2.0MB

                        MD5

                        42335d4e06a512cb4fac281ada892eaf

                        SHA1

                        80aef27b5f7748a27a9057cdfbdaa3c557ed692f

                        SHA256

                        c4a2b25d92542a0739f7a8443d2385e50000de03f9615dc0c64e2a803d9391a8

                        SHA512

                        8fe300f6937a8d84d83eb32aee5d955d304c43ce95c401a01e85df7c795b30832c775505c2b43672fe7610852009b069fb7ad2bbcf6bbd5ea5d1537199245566

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

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/2024-104-0x00000000001A0000-0x000000000023C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2024-89-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                        Filesize

                        4KB

                      • memory/2024-93-0x00000000001A0000-0x000000000023C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2208-107-0x0000000000800000-0x000000000085E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2232-113-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2304-66-0x0000000000950000-0x00000000009AE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2432-106-0x0000000000730000-0x0000000000731000-memory.dmp

                        Filesize

                        4KB

                      • memory/2432-43-0x0000000000730000-0x0000000000731000-memory.dmp

                        Filesize

                        4KB

                      • memory/2748-54-0x00000000012B0000-0x000000000130E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2800-46-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2800-49-0x0000000000270000-0x000000000030C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2800-53-0x0000000000270000-0x000000000030C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2800-48-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

                        Filesize

                        4KB

                      • memory/2880-28-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2880-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2880-40-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2880-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB