Analysis

  • max time kernel
    4s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 04:51

General

  • Target

    f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5bN.exe

  • Size

    2.0MB

  • MD5

    9a3e868f2423c0a21462ff7b447f2140

  • SHA1

    238eb49fcbd47177afe5ae31ddd830cf78d15d0c

  • SHA256

    f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5b

  • SHA512

    f9c422c5afcd1fb918f124a596fde5ff1ec6eb727e844b35a695774decadb236b823eb0f4687eda079a20416f9cf1f910c9bcd8afa251c3c79fc53eacbb39465

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYL:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y1

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.

  • Azorult family
  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 4 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 9 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 6 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\f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5bN.exe
    "C:\Users\Admin\AppData\Local\Temp\f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5bN.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:3508
    • 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:208
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 548
          3⤵
          • Program crash
          PID:1972
      • 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:5096
        • 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:1384
        • 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:3336
          • 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:4228
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\03uWplbNq50F.bat" "
            4⤵
              PID:5028
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2520
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4556
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1968
                    • 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:2368
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ilj7Rbdaiw8m.bat" "
                      6⤵
                        PID:2540
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4804
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3536
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4196
                              • 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
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:4828
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 2204
                            6⤵
                            • Program crash
                            PID:5052
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 2252
                        4⤵
                        • Program crash
                        PID:3684
                  • C:\Users\Admin\AppData\Local\Temp\f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5bN.exe
                    "C:\Users\Admin\AppData\Local\Temp\f74af838a490f9d3463747136f0d561f245f11bf1178e66c3e1bd532aa45ac5bN.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2028
                  • 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:2816
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 208 -ip 208
                  1⤵
                    PID:4856
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:4112
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:4596
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1816
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 520
                            3⤵
                            • Program crash
                            PID:4288
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:1536
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:3024
                            • 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:5072
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4596 -ip 4596
                            1⤵
                              PID:780
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3336 -ip 3336
                              1⤵
                                PID:2904
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1968 -ip 1968
                                1⤵
                                  PID:3308
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:3228
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3152

                                    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\03uWplbNq50F.bat

                                      Filesize

                                      208B

                                      MD5

                                      1fde3aa49a62fbdc5e2fcc1f8090d4df

                                      SHA1

                                      4e77ea7fea486646e2a2153b4afbf711c14a9a38

                                      SHA256

                                      a5a1e3b799fb863f16c34880e0ab2e48bab15f8d824d0c5081ea1d9fce2ed60a

                                      SHA512

                                      588ed18e1e46fe59faaff3f67765cbe8a010252738dae6fba9dc509e953b9a7e012481c2f6724f3100c0cd7b53dd1551dc12b99fec209a221ceb8cb1b8adff4c

                                    • C:\Users\Admin\AppData\Local\Temp\ilj7Rbdaiw8m.bat

                                      Filesize

                                      208B

                                      MD5

                                      6022154e52c14dd8faeadb9a769b063f

                                      SHA1

                                      9d07db7f7b3a58af79f95ddc3d8cee5abe39623c

                                      SHA256

                                      d78f6b5b179f3978a6e8bfe04545d349330e578b2ce9d8df1d6139766b2dde39

                                      SHA512

                                      dbf47f5cb43a7acbcfdbe63fd9b457a4f1bb193093b6f6bcccf9f32add74a0435fb305853c03729a825163c746464a3bb9287d34614da29079be0eef333dbb33

                                    • 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\12-08-2024

                                      Filesize

                                      224B

                                      MD5

                                      c0d08ec563136bf9507c8d8827878a49

                                      SHA1

                                      a5697f90131e23a9f77271e2735dcc1470950140

                                      SHA256

                                      0287b8b8d8607b2ffd091e6ad47cdf6fb39eaf9c63094f185faa3825583c132c

                                      SHA512

                                      15502e08b8faaab981a0e6d6c1ffec4c8808c7a7c69993637058518c3413e4a6e6d2fe47c57190d700e2bb5311b210c1f497f0f4a24f859b87436c9b7dcbd60d

                                    • C:\Users\Admin\AppData\Roaming\Logs\12-08-2024

                                      Filesize

                                      224B

                                      MD5

                                      6ced4ccdd6d1836a86e9f7a901baf265

                                      SHA1

                                      3353748d544471aa56f45d0f5a0fa0308d9afe60

                                      SHA256

                                      4f0e16faf64f002d4cf5616e587562559f9428956324cf18147af7226795e28d

                                      SHA512

                                      0f399cc8ad759ad4155bff7af135c430b3d676239fbd0555b66cee8111e519f12a2f9db129a5d1e42b1ef40cc068e326e2266e058027960b82969549b6ef7b95

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      20d471ff57004c901dbfce1dcd455bdd

                                      SHA1

                                      181d43d7d929761d8d19d4afef6ba3c426a7a707

                                      SHA256

                                      0ad44bd8ec98ab3456afe88d7c166dc28da357b05729947298ee985f715b2753

                                      SHA512

                                      ca24833dc5680089bed554a9f9e1de5d2846af554bab42ec4c052e4d8ccc9b9ef99d382e76f85f583faaf81f60ebcfc1a5e65e87f30a79fe259578ba498e0186

                                    • memory/2028-22-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2028-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3336-45-0x0000000006B30000-0x0000000006B3A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/3508-20-0x0000000004110000-0x0000000004111000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/5096-37-0x0000000006AE0000-0x0000000006B1C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/5096-36-0x00000000065A0000-0x00000000065B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/5096-35-0x0000000005950000-0x00000000059B6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/5096-34-0x00000000058B0000-0x0000000005942000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/5096-33-0x0000000005D70000-0x0000000006314000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/5096-30-0x0000000000E20000-0x0000000000E7E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/5096-19-0x00000000738FE000-0x00000000738FF000-memory.dmp

                                      Filesize

                                      4KB