Analysis

  • max time kernel
    5s
  • max time network
    92s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2024 06:08

General

  • Target

    f1a6289277081e4ed36bbf74a4b34340N.exe

  • Size

    2.0MB

  • MD5

    f1a6289277081e4ed36bbf74a4b34340

  • SHA1

    966a7e9c100d076d7a6fe8d52597a04235ffa2e3

  • SHA256

    52db39e78dca3c7ebd4d6e2d663e03ae6983aa2fd56a9f2ae38d7a022f8c38ed

  • SHA512

    489180099eb3bae7089d0c9fa82c6d36d8da936f95048dc1d608928ac8af60cbd50590d0740d9f0b034d72d1b65e702989b5272fc389c1b05f238997cf2f7b20

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYV:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yz

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 3 IoCs

    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 2 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\f1a6289277081e4ed36bbf74a4b34340N.exe
    "C:\Users\Admin\AppData\Local\Temp\f1a6289277081e4ed36bbf74a4b34340N.exe"
    1⤵
    • Quasar RAT
    • 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:3940
    • 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:3444
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3768
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 548
          3⤵
          • Program crash
          PID:216
      • 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:3512
        • 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:2980
        • 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:620
          • 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:4416
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\w69UOehaairx.bat" "
            4⤵
              PID:4400
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3092
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2580
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:908
                    • 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:752
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\queg0acMIzph.bat" "
                      6⤵
                        PID:4192
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4596
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4068
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3824
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 908 -s 2240
                            6⤵
                            • Program crash
                            PID:1696
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 1748
                        4⤵
                        • Program crash
                        PID:2864
                  • C:\Users\Admin\AppData\Local\Temp\f1a6289277081e4ed36bbf74a4b34340N.exe
                    "C:\Users\Admin\AppData\Local\Temp\f1a6289277081e4ed36bbf74a4b34340N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1844
                  • 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:1760
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3444 -ip 3444
                  1⤵
                    PID:4328
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3608
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:3280
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4084
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 3280 -s 528
                              3⤵
                              • Program crash
                              PID:3976
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2336
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:712
                              • 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:1520
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3280 -ip 3280
                              1⤵
                                PID:3860
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 620 -ip 620
                                1⤵
                                  PID:3636
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 908 -ip 908
                                  1⤵
                                    PID:2196

                                  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\queg0acMIzph.bat

                                    Filesize

                                    208B

                                    MD5

                                    34dd14ac82d6ada1883606f5d7c30015

                                    SHA1

                                    5f7d242dfefbc867f1ddd56a3dbd969e4f122ca6

                                    SHA256

                                    f172208b43779c62b8411c799b270b2787164f29a8452ad78a922ff5af397369

                                    SHA512

                                    ac394869ac89863cdf438f9cc101c9404f00f8c08e552324ede430683ef4efbaabf52838a1284ffb507a9e66d603fae9d7ca19445df995142ccc4a824714f265

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

                                    Filesize

                                    405KB

                                    MD5

                                    b8ba87ee4c3fc085a2fed0d839aadce1

                                    SHA1

                                    b3a2e3256406330e8b1779199bb2b9865122d766

                                    SHA256

                                    4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                    SHA512

                                    7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                  • C:\Users\Admin\AppData\Local\Temp\w69UOehaairx.bat

                                    Filesize

                                    208B

                                    MD5

                                    fd513e3e86ae2aee8437912e3798ba2b

                                    SHA1

                                    025c326026633f105a1c362bbbdfaa148ce165c7

                                    SHA256

                                    c6807ecebd4ece33060d094103ed6509a526178f7df6c32c807d861f6edf5174

                                    SHA512

                                    2240729e64f3bca4885da4a815d7b578bc91e35c4bea8db6a96b3f6b32fb9062ad0d14d6e7bb34f838eba6237147c4ecb8b3ebc1bfca76a1e753c3be1ad94c16

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

                                    Filesize

                                    349KB

                                    MD5

                                    b4a202e03d4135484d0e730173abcc72

                                    SHA1

                                    01b30014545ea526c15a60931d676f9392ea0c70

                                    SHA256

                                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                    SHA512

                                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                  • C:\Users\Admin\AppData\Roaming\Logs\09-08-2024

                                    Filesize

                                    224B

                                    MD5

                                    246c617b49d8de06ca8093e216d115b8

                                    SHA1

                                    7df9f00d918014d63a705d08c2f6bdbf209a557c

                                    SHA256

                                    872c72b0591965ac8aff49ef8f592312f5bb06553286c6da01477f0f88795077

                                    SHA512

                                    87e1c00998fce4f5e35989ff6e030630dd5a754ec7cea56989b1a897eb565e603b17446f3eca817b63a613dfc7b30e3cbf49d9c4a69682285e7acbb48c496bbf

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    a53143bfa5778120dc9473c4200874ff

                                    SHA1

                                    02ab94e5e2cf8890b2b456ba325d3df4147cfebb

                                    SHA256

                                    7d92056c86c0414ed77bdd095b2cea872370498a50b3ff4a45388f667799e721

                                    SHA512

                                    fbd197ed0864e0570c73ad014cee1c627bb8b6646379153d2bf0c4633ea12ec77eb39e8d0ef6f975640d54594d783e03081946c6c4e1954282af8d6e6d4eea89

                                  • memory/620-45-0x0000000006300000-0x000000000630A000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/1844-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/1844-22-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3512-35-0x0000000005090000-0x00000000050F6000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/3512-36-0x0000000005470000-0x0000000005482000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/3512-37-0x0000000006160000-0x000000000619C000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/3512-34-0x0000000004FA0000-0x0000000005032000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/3512-33-0x00000000054B0000-0x0000000005A54000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/3512-30-0x00000000005F0000-0x000000000064E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/3512-19-0x0000000072EBE000-0x0000000072EBF000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/3940-20-0x00000000041F0000-0x00000000041F1000-memory.dmp

                                    Filesize

                                    4KB