Analysis

  • max time kernel
    5s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-07-2024 00:07

General

  • Target

    8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe

  • Size

    2.0MB

  • MD5

    769ded1ba7b202918ff301a726156481

  • SHA1

    a21c5a68bb2c9e8a89dafa1bad6fda99d3196ba4

  • SHA256

    8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4

  • SHA512

    9644f639c322fb1a3d5b78ebcd1e1c8fab39e3313aceca713d25aae331cc54d178e26144c52b0e19a7c83053f2fb48fd3ed1459358cf257a5de87819db18f4b4

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk: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 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
  • 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\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe
    "C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5000
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 548
          3⤵
          • Program crash
          PID:3192
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4200
        • 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:2944
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2468
          • 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:1968
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XKrnl0k8GBSB.bat" "
            4⤵
              PID:4716
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4420
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:5012
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4368
                    • 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:1548
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WEuF3tBzu9mO.bat" "
                      6⤵
                        PID:3884
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4388
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:2084
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 2228
                          6⤵
                          • Program crash
                          PID:1904
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 2248
                      4⤵
                      • Program crash
                      PID:5008
                • C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe
                  "C:\Users\Admin\AppData\Local\Temp\8d4959256e53fb74a296edbd63a8287d142b99804dcfa5e64c991a86c7e440d4.exe"
                  2⤵
                    PID:4264
                  • 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⤵
                    • Quasar RAT
                    • Scheduled Task/Job: Scheduled Task
                    PID:2752
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5000 -ip 5000
                  1⤵
                    PID:2084
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4644
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4380
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2176
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 520
                              3⤵
                              • Program crash
                              PID:3908
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2908
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3680
                              • 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:3944
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4380 -ip 4380
                              1⤵
                                PID:3676
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2468 -ip 2468
                                1⤵
                                  PID:1964
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4368 -ip 4368
                                  1⤵
                                    PID:4892
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4500
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2016

                                      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\WEuF3tBzu9mO.bat

                                        Filesize

                                        208B

                                        MD5

                                        8bb37112ee78bf34e490f31d8d4fcbc1

                                        SHA1

                                        39f333a38e69c87815a406d299f730b10b4b4fbc

                                        SHA256

                                        68bcd408bf122d4fb0e5e90dd8885f71be723b24ac2f153e6053baac838fe2e0

                                        SHA512

                                        cc4a56440a74017738183ab4ad8182502a2ab083d2fcc725e2fca3083e754395074d071e6fe9e7bd0d838d4a9be6613ce57c12dfd024ea2714945bc575c41e4b

                                      • C:\Users\Admin\AppData\Local\Temp\XKrnl0k8GBSB.bat

                                        Filesize

                                        208B

                                        MD5

                                        d3223ed6a9c98bfb0b96dbd542cdd026

                                        SHA1

                                        92b251d7c73301e01457e3f605ae0ac51f36b8f0

                                        SHA256

                                        41eb05a766c717788511859b1c15f47894e46706938cdf7555b692d40c8c4711

                                        SHA512

                                        2135a32e495a7f53dc7d5c0be0ce952ff14d9aa096e7de0f7cafab7aab0af6c83c184e3724031e56f6f103a9fc4fce97a93291dad82b698fc2142192ae534c70

                                      • 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\07-03-2024

                                        Filesize

                                        224B

                                        MD5

                                        c8304694c6232a343dd656853b166e23

                                        SHA1

                                        14db6a615d5b9302fec6765145c5a6cb1314ca34

                                        SHA256

                                        314c3ec16fb92eaf83d24bb5ac36fa0ada1f653c72eb851c436557dc51ca2e47

                                        SHA512

                                        264d1e26806178faecd8c9b397a93a047dbfdcb6888db0382c0c2f1514456b74c564491623da1d85f87fb81949b871e8c154f28ab3bbccf50c619f139544cc5f

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        aa57e42c1c0c64a80307eac41e55be75

                                        SHA1

                                        4cd2c96c8ea8e4804cc98a48162bef34446ea764

                                        SHA256

                                        2ea7c19e17862f1e6b9d1e4c7faf29f9b32a33cc2bb9821ae67fd41a3248d67b

                                        SHA512

                                        68d96b2b125eb6bbb7cc7cd7b70867fa761d077229953a07369d2f138f4823749fcc3ddf4c10feed6b5fee22d14b6bbfe6c33e6e0816727afddb6d4aee347fc2

                                      • memory/1556-19-0x0000000004080000-0x0000000004081000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2468-45-0x0000000006D20000-0x0000000006D2A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4200-34-0x00000000051B0000-0x0000000005242000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4200-36-0x0000000005700000-0x0000000005712000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4200-37-0x00000000063F0000-0x000000000642C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4200-35-0x0000000005250000-0x00000000052B6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4200-33-0x0000000005760000-0x0000000005D04000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4200-30-0x0000000000870000-0x00000000008CE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4200-20-0x0000000072D5E000-0x0000000072D5F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4264-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4264-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB