Analysis

  • max time kernel
    4s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    24-08-2024 19:32

General

  • Target

    11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7.exe

  • Size

    2.0MB

  • MD5

    897667b966e5e7c5e213872eb13e8d48

  • SHA1

    db5bfa59b09da7c53ec134c556cbd192e29d8d0c

  • SHA256

    11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7

  • SHA512

    db547167129a70bfdc249efab3084057ae6222e5206729e35ff287ecadde1933ac6a496b55662c1f519799147598d26d6dd6c97aadf12d4d7dac05ef61bea7e7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYA:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YK

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 13 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 8 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7.exe
    "C:\Users\Admin\AppData\Local\Temp\11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7.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:2208
    • 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:2180
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2584
      • 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:2796
        • 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:2348
        • 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
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2080
          • 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⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1672
      • C:\Users\Admin\AppData\Local\Temp\11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7.exe
        "C:\Users\Admin\AppData\Local\Temp\11b52f2a8860097063154c2e644656e5aa6d86f39e790a831e5ddde0b94376b7.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:2944
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {4EA852E9-F9E2-47C3-A6EC-BBA37C63643B} S-1-5-21-2257386474-3982792636-3902186748-1000:CTBHAMHL\Admin:Interactive:[1]
      1⤵
        PID:2956
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:2640
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:2412
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:840
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:1200
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:2556
                    • 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:272

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  349KB

                  MD5

                  b4a202e03d4135484d0e730173abcc72

                  SHA1

                  01b30014545ea526c15a60931d676f9392ea0c70

                  SHA256

                  7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                  SHA512

                  632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\UHP2X7JC.txt

                  Filesize

                  211B

                  MD5

                  1c40a5b56b40f387689cd75ae6ed32d5

                  SHA1

                  0e05c0d38196f8ad145b75a9d4a76c066590ff51

                  SHA256

                  54226ac0279a6cbe7433b039f7eb0005bf7fc6c20404bfe43548e25b4aad0041

                  SHA512

                  2825930196748c894111076126d4986a0bd22f6bca3bbe8b5f457755fc0780e6fe4e7f5731fd99a6ea64351a916f2bc5bbfd7b346fe1aca50e367c8cd75eedbf

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

                  Filesize

                  2.0MB

                  MD5

                  d6bc8d46c217be204d93db893f0409e8

                  SHA1

                  69d5842c6b0650c0f04470405f7240075495ca77

                  SHA256

                  77ee119ab2e955f50ce07aed07a966505cc86ae3080810901ca1ec28c9c4b475

                  SHA512

                  5674e3bcecd9c4f9ce04d5b502c10ef582543887b4ab208f2b8fd43ce767644005e04b86f6e9200102c706a3aac3c55f979f50ed3cc46d2c2ea4634869f5382e

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

                  Filesize

                  405KB

                  MD5

                  b8ba87ee4c3fc085a2fed0d839aadce1

                  SHA1

                  b3a2e3256406330e8b1779199bb2b9865122d766

                  SHA256

                  4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                  SHA512

                  7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                • memory/840-103-0x0000000000110000-0x00000000001AC000-memory.dmp

                  Filesize

                  624KB

                • memory/840-98-0x0000000000110000-0x00000000001AC000-memory.dmp

                  Filesize

                  624KB

                • memory/840-95-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/840-97-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

                  Filesize

                  4KB

                • memory/1200-85-0x0000000000070000-0x00000000000CE000-memory.dmp

                  Filesize

                  376KB

                • memory/2080-60-0x0000000000AE0000-0x0000000000B3E000-memory.dmp

                  Filesize

                  376KB

                • memory/2208-30-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

                  Filesize

                  4KB

                • memory/2556-91-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2796-46-0x0000000000FD0000-0x000000000102E000-memory.dmp

                  Filesize

                  376KB

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

                  Filesize

                  128KB

                • memory/2844-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2844-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2844-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB