Analysis

  • max time kernel
    3s
  • max time network
    96s
  • 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 00:58

General

  • Target

    748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23N.exe

  • Size

    2.0MB

  • MD5

    30978c8172cb2659669a40bff5dadcc0

  • SHA1

    7044e339bffde059ac0cd83b9ebd58564d2cdf42

  • SHA256

    748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23

  • SHA512

    156749b50d5a34a1fc72034b691571b8395a2a65b4d6d75f0e84e3347fd7efcb1fbbf96371eaa2363c986700a77984b253e71a9e8d18e186d0fdcb31361bd062

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY6:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YI

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 2 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 3 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.

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

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23N.exe
    "C:\Users\Admin\AppData\Local\Temp\748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23N.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:1448
    • 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:4436
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 548
          3⤵
          • Program crash
          PID:5000
      • 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
        PID:3352
        • 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:872
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:2544
            • 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:1688
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2GnaZlEXSNRK.bat" "
              4⤵
                PID:4076
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:3216
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:4760
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:3888
                      • 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:2848
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 2224
                    4⤵
                    • Program crash
                    PID:3364
              • C:\Users\Admin\AppData\Local\Temp\748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23N.exe
                "C:\Users\Admin\AppData\Local\Temp\748235335c3f431f8e3b9b70ad5ba1df9f4cd832d3b54a4dd894bede41a75a23N.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:4932
              • 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:2652
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4436 -ip 4436
              1⤵
                PID:4744
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2544 -ip 2544
                1⤵
                  PID:2392
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:828
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2668
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2036
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 520
                            3⤵
                            • Program crash
                            PID:4868
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:1060
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:2580
                            • 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:2200
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2668 -ip 2668
                            1⤵
                              PID:3320
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:3116
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:4308
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:3604
                                    • C:\Windows\explorer.exe
                                      explorer.exe /LOADSAVEDWINDOWS
                                      2⤵
                                        PID:584
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2060
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:4876
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:3424

                                          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\2GnaZlEXSNRK.bat

                                            Filesize

                                            208B

                                            MD5

                                            18dc3eec49c6f28199520ed66ad4aef1

                                            SHA1

                                            39e33ec473436a34d08c36511c62445204da3ff4

                                            SHA256

                                            855510131737ff8a8e4fb41946d8ca0423395f035ac5050229619f8397e0a9fa

                                            SHA512

                                            0b10c27124a68fca9f811d598e2f48c9fcf618d81fa2178a4d706fb486145fc9cfdb783ee45400e45fe055a24ad08efda8ab3476c2a5213b13999b087431ccb1

                                          • 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

                                            e8a49bf21b0d22fbc11798a706eaf6a2

                                            SHA1

                                            8d46f775fffc568a9689db8205654332591f297e

                                            SHA256

                                            281244860e69c244539e8a61764e86c73f11b5e0a5af97bb16961ae89023f4a9

                                            SHA512

                                            7343dcb19c7bc2d92d413cb2bfdc88385eaaa240d4346cf00489c3676c52fd9a4c4b198d6fd1a5543f8394ebd142455c9a57b5550ce3c7c07c79e24f168cdc36

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            ce634f109a0f3fef8515358776c4530e

                                            SHA1

                                            66f30fe8de036ec2ca2caa8cfd8dbb66165a85f3

                                            SHA256

                                            b710b82d045113703317977c676b8337693686e3f4ba8da00268a1ff4971c639

                                            SHA512

                                            9edadd688f70591a1329f4485e833900da910cd23a2f15046e5958485ed38d22387164fa2398953640b03ffdcb41b1999f46ecdeda2c78460a9d4afa92612b51

                                          • memory/1448-19-0x0000000004350000-0x0000000004351000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/2544-45-0x0000000006B80000-0x0000000006B8A000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/3352-34-0x0000000005920000-0x00000000059B2000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/3352-35-0x0000000005A00000-0x0000000005A66000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/3352-36-0x0000000005F70000-0x0000000005F82000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/3352-37-0x0000000006C60000-0x0000000006C9C000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/3352-33-0x0000000005FB0000-0x0000000006554000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/3352-30-0x0000000000EA0000-0x0000000000EFE000-memory.dmp

                                            Filesize

                                            376KB

                                          • memory/3352-29-0x0000000072D9E000-0x0000000072D9F000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4932-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4932-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB