Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2024 06:43

General

  • Target

    71c2516fe22f275ea800500ec2420ff0N.exe

  • Size

    2.0MB

  • MD5

    71c2516fe22f275ea800500ec2420ff0

  • SHA1

    e502a422c6a2a3e66ba444fde9a8b9a297e99e95

  • SHA256

    23d85f575eaedd63fcea6c78ec99c7019adce4aa160c1bb08f9660e667416f53

  • SHA512

    23dc92714cc9787ef889232f462023e7aa3a3f9fef8746602ebdc3750aa308bbb006b1f340258e928fc12851d24bcccc60590b7a48040e6ea436afeca5c6d5ed

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y/

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 WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71c2516fe22f275ea800500ec2420ff0N.exe
    "C:\Users\Admin\AppData\Local\Temp\71c2516fe22f275ea800500ec2420ff0N.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:864
    • 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:2312
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 556
          3⤵
          • Program crash
          PID:648
      • 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:704
        • 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:4464
        • 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 WriteProcessMemory
          PID:2656
          • 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:4776
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4I12IADTnArv.bat" "
            4⤵
              PID:1912
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1872
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4456
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1412
                    • 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:3944
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rLTlvmGeRoSq.bat" "
                      6⤵
                        PID:1788
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2660
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2976
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2024
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 2232
                            6⤵
                            • Program crash
                            PID:2488
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 2244
                        4⤵
                        • Program crash
                        PID:3908
                  • C:\Users\Admin\AppData\Local\Temp\71c2516fe22f275ea800500ec2420ff0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\71c2516fe22f275ea800500ec2420ff0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:3204
                  • 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:2564
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2312 -ip 2312
                  1⤵
                    PID:1672
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2656 -ip 2656
                    1⤵
                      PID:4084
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:1228
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:5032
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4992
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 488
                                3⤵
                                • Program crash
                                PID:5092
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4680
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3008
                                • 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:2840
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5032 -ip 5032
                                1⤵
                                  PID:2088
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1412 -ip 1412
                                  1⤵
                                    PID:4108
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3412
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:384

                                      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\4I12IADTnArv.bat

                                        Filesize

                                        208B

                                        MD5

                                        5303a6b6f9dd97d890e0a16b28f39b67

                                        SHA1

                                        b881181202a251bbdd53a10d11c140a03638e0cf

                                        SHA256

                                        474e7b8b81c589af47b25616178a8e175312e2c379bc075184d300362fa2f766

                                        SHA512

                                        2a4c267792363af7be2f666f5b1256622c733378dc22f92dbf64b3ade5180c5c501754cd5ac855d86425e31c216aec8a34fb431b2442c3de357fdbd40aed93b5

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

                                        Filesize

                                        208B

                                        MD5

                                        475a570977db9e6341e2e6aa37b3b8c6

                                        SHA1

                                        72d0d20d6aeac44d3bfbc99030cd7483b53ff251

                                        SHA256

                                        fa6d67564bef6a074597258c8cc2fb7b6fe5daece6ce9502dee8f92d21dd1c0d

                                        SHA512

                                        215a24396b4f6f37d4232577bf69b98ee84e36eebf16987f0b31f7a120a19967f34b7d54ecb2c4dd25b529d80ae1fd6ff1e3f1260500da8add47bb1772e7b065

                                      • 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\08-06-2024

                                        Filesize

                                        224B

                                        MD5

                                        d0636c818967853aca3d8dc5f85880e7

                                        SHA1

                                        5b774450c5624d4c45cd6a0b524298dcae187337

                                        SHA256

                                        bfcc0e547f56e435ba029ceae3f49c8dd3ebf4a859fc30a246a27d1214bf7641

                                        SHA512

                                        ba10d82104e4a2b7029425a7e479d712746f176ded8de732627222f84ad165dbad5d077ea62980f509ef32599bc1c89dcb06257e5a7c5588977af17bf0e889ad

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        6eeacffdc4e659ecf771f0326c910227

                                        SHA1

                                        9ff84fbf9ce7f5648b5cba6c84e7e294d7b5ea3a

                                        SHA256

                                        956a06ec720ce089a8be99dcfd074b3c86d22b571636dd8de24413c794f8a6ac

                                        SHA512

                                        6b2b4c9e5dd322d316aebe1e5707e380a37f73621c01f10636f3da795d554468024068739f7e6c7d2df54440879ccb755727781bef870f0dcb122010be39e864

                                      • memory/704-30-0x00000000008D0000-0x000000000092E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/704-33-0x0000000005850000-0x0000000005DF4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/704-34-0x00000000053E0000-0x0000000005472000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/704-35-0x0000000005340000-0x00000000053A6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/704-36-0x0000000006060000-0x0000000006072000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/704-37-0x00000000065A0000-0x00000000065DC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/704-29-0x000000007337E000-0x000000007337F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/864-46-0x0000000003E40000-0x0000000003E41000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/864-28-0x0000000003E40000-0x0000000003E41000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2656-45-0x00000000069E0000-0x00000000069EA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/3204-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3204-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB