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Analysis

  • max time kernel
    5s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/08/2024, 22:39

General

  • Target

    630c1e5dc1eba3f298e0296ab71ede80N.exe

  • Size

    2.0MB

  • MD5

    630c1e5dc1eba3f298e0296ab71ede80

  • SHA1

    3e4aa4f0111cc295ced8c9d84d79c2ccaf2c2afe

  • SHA256

    1c0a2c6ea9e3cf451c09f529d7df9a2ab3f1c5bd7dec5e9dc4aae539f323bba8

  • SHA512

    51e0f1c47dd61f335366c665490b8887f41a3dedd47b936cbcb1ef40e5a7bbf9aabf36cd937d282a64d692bb11f8f6b59df08ef5a7a4320afb593e5735996728

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYU:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YS

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 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\630c1e5dc1eba3f298e0296ab71ede80N.exe
    "C:\Users\Admin\AppData\Local\Temp\630c1e5dc1eba3f298e0296ab71ede80N.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:4392
    • 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:5040
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4932
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 548
          3⤵
          • Program crash
          PID:3680
      • 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:2420
        • 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:4704
        • 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:1940
          • 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:2336
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Fh85kjBKEWBV.bat" "
            4⤵
              PID:4624
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3996
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:5104
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3716
                    • 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:2196
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VltISJ4eWlnK.bat" "
                      6⤵
                        PID:932
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4404
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4408
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 2208
                          6⤵
                          • Program crash
                          PID:4456
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 2248
                      4⤵
                      • Program crash
                      PID:4764
                • C:\Users\Admin\AppData\Local\Temp\630c1e5dc1eba3f298e0296ab71ede80N.exe
                  "C:\Users\Admin\AppData\Local\Temp\630c1e5dc1eba3f298e0296ab71ede80N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3764
                • 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:216
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5040 -ip 5040
                1⤵
                  PID:3532
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2096
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:644
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2560
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 644 -s 520
                            3⤵
                            • Program crash
                            PID:4756
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:5036
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:2300
                            • 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:2340
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 644 -ip 644
                            1⤵
                              PID:4452
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1940 -ip 1940
                              1⤵
                                PID:4304
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3716 -ip 3716
                                1⤵
                                  PID:3372
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4844
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3680

                                    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\Fh85kjBKEWBV.bat

                                      Filesize

                                      208B

                                      MD5

                                      fa976f6958f8d2f5a83eb5d89c78aceb

                                      SHA1

                                      86ee7fca5904601f9b06d058961c556e56cb5815

                                      SHA256

                                      7d537fc4901c169bb2a311f4785ab8246967ff3dcbb1186ff57fa31e9ec927e8

                                      SHA512

                                      0958fabdf8183f2eb9de87b5302605a9ee79e7aac6ba9c0955b44e430a6f130229e576171a68d64da97219af5f880c225adf0a069bacf4aaf4ee82d8af6e5afb

                                    • C:\Users\Admin\AppData\Local\Temp\VltISJ4eWlnK.bat

                                      Filesize

                                      208B

                                      MD5

                                      8aa00a959d5b493e30889bb4db11ce9c

                                      SHA1

                                      c957174090a8fc89d25df2cc565df6f3b965d1f9

                                      SHA256

                                      916e44ab4916503db51214a4e2d414fd0c4fbf9d8ccf8d2d25df873506bf063b

                                      SHA512

                                      d5a396400f37c71e744d674ff6f2ddba7e6fb58c0c526d6a1f10b69bce3db262a7e974e9ce58be8de3a9d53f21d635105d330f9ddab42f0c69f1b4006f7968f3

                                    • 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\08-30-2024

                                      Filesize

                                      224B

                                      MD5

                                      73692dd1d171f40df68519157b8bd27c

                                      SHA1

                                      a25e2c6ab35085592cf5f50d211ec103701f97ce

                                      SHA256

                                      ff862c2b12b5a678e443325ffda6f45de03dc18e2ab3f7d82f4fe44aae1e7c19

                                      SHA512

                                      7e08a516832291bd9a4279a4e657865df4c6b4dfc7271af55ea67b5f0f78d41a1c7ebdc06edecf376b0d71c90ebc987830669222495ea4a8e23853b1e04928d8

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      86d557ddb207c4a30fd6eaeadaa1aca1

                                      SHA1

                                      21dd484062ba2858bd9b022070cad85e3c4c5016

                                      SHA256

                                      6f3fbec639d5155d42aeec0a14b6bd8a9d179c890c7abc3b4a0b2705a21e22d7

                                      SHA512

                                      b464097f54e933f2e0365fd90381f9b1d1e5082b8d1330ed9c8f4cee25f437ecc908ae4b162db506be4bd9f10c073a60308a5158ab38d47c9793c727b5cddbd1

                                    • memory/1940-45-0x0000000006C60000-0x0000000006C6A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2420-34-0x00000000054F0000-0x0000000005582000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2420-35-0x00000000055C0000-0x0000000005626000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2420-36-0x0000000005A30000-0x0000000005A42000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2420-37-0x0000000006730000-0x000000000676C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2420-33-0x0000000005AA0000-0x0000000006044000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2420-30-0x0000000000A80000-0x0000000000ADE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/2420-19-0x000000007356E000-0x000000007356F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3764-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3764-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4392-20-0x0000000001610000-0x0000000001611000-memory.dmp

                                      Filesize

                                      4KB