Analysis

  • max time kernel
    4s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2024 05:40

General

  • Target

    633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7N.exe

  • Size

    2.0MB

  • MD5

    5e86b4708529ff2ca05052713d888ba0

  • SHA1

    4669b4e7b3a787249e741c676e1a51ecb8e130fc

  • SHA256

    633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7

  • SHA512

    a4f658ec4b2538c28b325da515f126f962e34b7a5a916476370cb883b77d6cb6dbe605616e43c0a9c87007e9c8fcb7f90222a4453d06ef6064ba28d630bd3d2b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY3:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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

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 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 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 4 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7N.exe
    "C:\Users\Admin\AppData\Local\Temp\633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4568
    • 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:432
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 432 -s 540
          3⤵
          • Program crash
          PID:4280
      • 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:1936
        • 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:5040
        • 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 SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3864
          • 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:5100
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EP6AzpZzjG6R.bat" "
            4⤵
              PID:4864
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3240
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2052
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1724
                    • 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
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1548
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Os9JFFK9OpRs.bat" "
                      6⤵
                        PID:4524
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2320
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3864
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 2272
                          6⤵
                          • Program crash
                          PID:1544
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3864 -s 2004
                      4⤵
                      • Program crash
                      PID:4668
                • C:\Users\Admin\AppData\Local\Temp\633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7N.exe
                  "C:\Users\Admin\AppData\Local\Temp\633df299ed92bd919ba85fa7a5730839523d83ac543a0c7701a828cdf1e3f7c7N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:60
                • 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:3580
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 432 -ip 432
                1⤵
                  PID:4108
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3864 -ip 3864
                  1⤵
                    PID:4432
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2348
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:1820
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4816
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 520
                              3⤵
                              • Program crash
                              PID:4012
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3496
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:1712
                              • 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⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:2820
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1820 -ip 1820
                              1⤵
                                PID:720
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1724 -ip 1724
                                1⤵
                                  PID:2884

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                  Filesize

                                  1KB

                                  MD5

                                  10eab9c2684febb5327b6976f2047587

                                  SHA1

                                  a12ed54146a7f5c4c580416aecb899549712449e

                                  SHA256

                                  f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                  SHA512

                                  7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                • C:\Users\Admin\AppData\Local\Temp\EP6AzpZzjG6R.bat

                                  Filesize

                                  208B

                                  MD5

                                  05690f86c0f74e61588b844538220b6e

                                  SHA1

                                  9ceb7387af985458391a7bc575751ab01364b226

                                  SHA256

                                  1ec43949d2e85410a7a8abe0506ecd87772edc40219c2da90981e1df4870266a

                                  SHA512

                                  73dd590c7ed8dbf477e59f6bb6c8e8901289af457687acb8cdf75efbf5aa2f63b2396eb6287e0e7755226be080696f84bed7e6e4b377f28d261b413a01a95755

                                • C:\Users\Admin\AppData\Local\Temp\Os9JFFK9OpRs.bat

                                  Filesize

                                  208B

                                  MD5

                                  4eb37f66734812c009ac65a87d5e8e1c

                                  SHA1

                                  04a92e2248ab2df856d8de7948ce3ec748b484ae

                                  SHA256

                                  244532dd7e8b6036ff25e34bad4efefb5fbaa526ae7146ee3256062936a5c7be

                                  SHA512

                                  48039f23d83663cb72c6a87a738b4510e649ff72e3860caae8f1e30470e305d6df1f34eddd3df6cd8f1188903349dbccb57cb62c52852adc77dcb02854feb1c1

                                • 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\AppData\Roaming\Logs\10-17-2024

                                  Filesize

                                  224B

                                  MD5

                                  069f995fc4fb81abb587d509e06aaabb

                                  SHA1

                                  efc1ed2f8648df374a3f6d29f877f8dca372bf24

                                  SHA256

                                  bdf3d003ebdaec71a9306c37af1b37471eeff9a8c7301c4d67a838cb493ac5fc

                                  SHA512

                                  ab8886a3679f32dfa83498bb3e5caf38542df818dbe51e5e2005855c4a87bec314e5c9df6c6624faa033e933d29f87aa94ef8cd7652b88504fb8cf343854e009

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  4f5c2f58275b1e3a29205b8125c19877

                                  SHA1

                                  cf48766c4965544d406e7d2a51bbc9310c12b829

                                  SHA256

                                  365d0026f643d6d92a7074b608ddf11040555c30eca83c419a6d6b6efea37048

                                  SHA512

                                  75ad87a212a978baed5226e3e17bb5e3f00ce0d2b02aea6b1de01835ff6b154ff592b63a9d495f5ea61b97419c3230187b5ed428885ef748a01aac712d8071b3

                                • memory/60-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/60-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1712-80-0x0000000000390000-0x00000000003B0000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1712-74-0x0000000000390000-0x00000000003B0000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1936-29-0x00000000737FE000-0x00000000737FF000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1936-37-0x0000000006670000-0x00000000066AC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/1936-36-0x0000000005970000-0x0000000005982000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/1936-35-0x00000000054F0000-0x0000000005556000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/1936-34-0x0000000005450000-0x00000000054E2000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/1936-33-0x0000000005A00000-0x0000000005FA4000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/1936-30-0x0000000000AE0000-0x0000000000B3E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/3864-45-0x00000000065A0000-0x00000000065AA000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4568-19-0x0000000004050000-0x0000000004051000-memory.dmp

                                  Filesize

                                  4KB