Analysis

  • max time kernel
    1s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-01-2025 12:59

General

  • Target

    f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa.exe

  • Size

    2.0MB

  • MD5

    c62da13fc22bf58bee911169411e8473

  • SHA1

    cab989f50391af928764608db240f388cb8b676f

  • SHA256

    f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa

  • SHA512

    efcbe8f52231d5eb283b5ebb805f60e5da8fcc17578dd60adfbd6157647ea268d0b589a3ca2ffee491e6ebb620ecdc167edb3763eee29327deeb8f4138f91ee3

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YJ

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 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 11 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 2 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.

  • 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 WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa.exe
    "C:\Users\Admin\AppData\Local\Temp\f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa.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:2100
    • 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:2076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2756
      • 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:2388
        • 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:1256
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1796
            • 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:2532
        • C:\Users\Admin\AppData\Local\Temp\f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa.exe
          "C:\Users\Admin\AppData\Local\Temp\f252d019f5eea405af89550fdb09f760b516032fa43141d999114513f83037aa.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2704
        • 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:2864
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {7A054A41-4D35-461E-858E-ECCA8515417E} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
        1⤵
          PID:1896
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:760
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:2900
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:404
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 160
                      4⤵
                      • Program crash
                      PID:1512
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    3⤵
                      PID:1420
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      3⤵
                        PID:1084

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

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

                    Filesize

                    2.0MB

                    MD5

                    456ef02473ac9e670fdcaee635ee0639

                    SHA1

                    ae20c02d4695a5c1f4dc9ff13dd346e60d9dc9b8

                    SHA256

                    1fe3a1a9a368b35ecab8f697746a2e1ac199aa0171f5d46cd1b1335aadb3af05

                    SHA512

                    59fe0d71ca9e1392ed4c74e802cb831d08de685472919d1b4ba2766ea09bfe68900a0bbbb759cdd5028dc053ef7297ca728ad5426521e6eddaa65bbda5aa8400

                  • \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/1084-95-0x00000000000C0000-0x00000000000E0000-memory.dmp

                    Filesize

                    128KB

                  • memory/1084-98-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/1796-57-0x0000000000B70000-0x0000000000BCE000-memory.dmp

                    Filesize

                    376KB

                  • memory/2100-30-0x0000000000D10000-0x0000000000D11000-memory.dmp

                    Filesize

                    4KB

                  • memory/2388-45-0x00000000003B0000-0x000000000040E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2704-31-0x00000000000D0000-0x00000000000F0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2704-32-0x00000000000D0000-0x00000000000F0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2704-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2704-42-0x00000000000D0000-0x00000000000F0000-memory.dmp

                    Filesize

                    128KB