Analysis

  • max time kernel
    5s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2025 04:39

General

  • Target

    b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3N.exe

  • Size

    2.0MB

  • MD5

    e325593da06562e49da4a02836c48c80

  • SHA1

    5cfdee9e56b78b131ef147a7b2abbc16e1bb3491

  • SHA256

    b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3

  • SHA512

    abcaefb13f5bd05bb710a1de93aa379cf42b2488045ef79b1021b8ba44f9e9a1aebf63fef58b7d87cc8efa7d33bad6ce7d78e9459a7cd14e5e27b4d8d0c4e8b8

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYt: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.

  • Azorult family
  • Quasar RAT

    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 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\b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3N.exe
    "C:\Users\Admin\AppData\Local\Temp\b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3N.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:4780
    • 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:4608
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 548
          3⤵
          • Program crash
          PID:2344
      • 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:4004
        • 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:1840
        • 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:3020
          • 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:4360
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9N9WwuKas7pa.bat" "
            4⤵
              PID:4516
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2292
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4404
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4772
                    • 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:384
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\StdsYZah46Gj.bat" "
                      6⤵
                        PID:2632
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4728
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2448
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2852
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 2264
                            6⤵
                            • Program crash
                            PID:3808
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 2268
                        4⤵
                        • Program crash
                        PID:5020
                  • C:\Users\Admin\AppData\Local\Temp\b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3N.exe
                    "C:\Users\Admin\AppData\Local\Temp\b6ef4d3690a049d92abea50c01dff9e15e49c1d64ba74398962e0204df719bc3N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4476
                  • 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:3524
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4608 -ip 4608
                  1⤵
                    PID:1028
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3020 -ip 3020
                    1⤵
                      PID:532
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3932
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:2660
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4420
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 520
                                3⤵
                                • Program crash
                                PID:1156
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2304
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3524
                                • 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:2344
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2660 -ip 2660
                                1⤵
                                  PID:2584
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4772 -ip 4772
                                  1⤵
                                    PID:4444
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4956
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4588

                                      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\9N9WwuKas7pa.bat

                                        Filesize

                                        208B

                                        MD5

                                        73cdad8dc9092439e9884fa3b08f81ee

                                        SHA1

                                        ce00bcee3327d6e6f06005a685b193e7697544f2

                                        SHA256

                                        a4679ba83c8fa3a2307ab32b5906d35f902231638825ebc58516785d5d6a0ca2

                                        SHA512

                                        e0f92b3ec323c53f331b2d1f5aeccf95ae2856e225e85051bba98c71d77aa185e0071bb2ea865e5cc07e0835db6abb83198ad1b7afe5b1402bfe66fec155ffd9

                                      • C:\Users\Admin\AppData\Local\Temp\StdsYZah46Gj.bat

                                        Filesize

                                        208B

                                        MD5

                                        03f82288dcab67ec485689ef250eaa85

                                        SHA1

                                        18d4b402133165cac4fcc86b4eb195af0b2a8eef

                                        SHA256

                                        17429f55b5908f8ae49d232ee3f8fbaa7e304a05e5578973d8013215c53f0174

                                        SHA512

                                        8311b1621da78c7b2dbb7abb127a6c492ad1e58637176044726d2ecd5041925ccbd188e96422ef1f3de09f9e11d182c0946335e4b20ee63d1b7f0a8403b81060

                                      • 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\01-21-2025

                                        Filesize

                                        224B

                                        MD5

                                        4c55f3cc2de9e4af20075a282451a6d9

                                        SHA1

                                        7026db3863992a1f332379df16e19576c137519e

                                        SHA256

                                        3cc92bbace85dc45c06501405c30b80b6fde4a811329d9bd5d650ca8d9f2c2d1

                                        SHA512

                                        a2ef084f1196b43cd8777c855d8f7e09175cd1e616d4c48f415c3f39e35f437a698d5365d317dc6c04c5acf8eb15250a7e5cc456338ad11b4a1fba30c1fdd8b4

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        5818751524ff4b603aa6f1df46e92e04

                                        SHA1

                                        c862ebdc38c3e12091e76fcfb6084cbc438a1d93

                                        SHA256

                                        88dd89b7b4ba503169c770a8450960e8810015c46ffb2ca01a1eb1ea04e94334

                                        SHA512

                                        31af0978722c525bcfd60acac063b14fe1209c2451797012ce80be2f51c7765d4abf2649745a340b522a27dc624dcefd73ad2169671e5c90ad04ca69251c705c

                                      • memory/3020-45-0x0000000006080000-0x000000000608A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/3524-80-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3524-74-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3932-90-0x0000000076E00000-0x0000000076E18000-memory.dmp

                                        Filesize

                                        96KB

                                      • memory/4004-29-0x0000000072E7E000-0x0000000072E7F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4004-37-0x00000000067B0000-0x00000000067EC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4004-36-0x00000000057B0000-0x00000000057C2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4004-35-0x00000000055E0000-0x0000000005646000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4004-34-0x0000000005690000-0x0000000005722000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4004-33-0x0000000005C40000-0x00000000061E4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4004-30-0x0000000000C20000-0x0000000000C7E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4476-28-0x00000000003C0000-0x00000000003E0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4476-20-0x00000000003C0000-0x00000000003E0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4780-19-0x0000000003E60000-0x0000000003E61000-memory.dmp

                                        Filesize

                                        4KB