Analysis

  • max time kernel
    5s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 09:52

General

  • Target

    23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591N.exe

  • Size

    2.0MB

  • MD5

    896386f15c29137fd08fefd7f2a5b4b0

  • SHA1

    b2a78354ce8032aa3348033f76c26429f3f1e35a

  • SHA256

    23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591

  • SHA512

    94f7f2ee71bcc80e9659e709de04f765d2bb125e8740057d00cc253dc702db6aaca4ead2a22ab2bd9c854278926dba41c98667268fa069f1fc84cde8beed6b71

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y9

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 6 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\23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591N.exe
    "C:\Users\Admin\AppData\Local\Temp\23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591N.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:2900
    • 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:3656
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 552
          3⤵
          • Program crash
          PID:792
      • 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:912
        • 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:4724
        • 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:400
          • 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:3156
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kqvYVY8fg8rR.bat" "
            4⤵
              PID:4564
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5088
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4716
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4912
                    • 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:1604
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yPWwRvPuHPZL.bat" "
                      6⤵
                        PID:2264
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:5060
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3640
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4720
                              • 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
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:3664
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4912 -s 2188
                            6⤵
                            • Program crash
                            PID:4176
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 1980
                        4⤵
                        • Program crash
                        PID:4596
                  • C:\Users\Admin\AppData\Local\Temp\23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591N.exe
                    "C:\Users\Admin\AppData\Local\Temp\23e61b508ad70191c9c5f5502e78e7c653e21f39928862f65b9e63377a456591N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1076
                  • 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:4408
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3656 -ip 3656
                  1⤵
                    PID:3288
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 400 -ip 400
                    1⤵
                      PID:4960
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4480
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4472
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:3948
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 520
                                3⤵
                                • Program crash
                                PID:3116
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1312
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4188
                                • 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:4408
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4472 -ip 4472
                                1⤵
                                  PID:5008
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 4912 -ip 4912
                                  1⤵
                                    PID:1452
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:664
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2344

                                      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\kqvYVY8fg8rR.bat

                                        Filesize

                                        208B

                                        MD5

                                        a6d05d3df2d5219167bef4f832afdac0

                                        SHA1

                                        b8573712ba2930f9e0db268508d5765859d1b338

                                        SHA256

                                        db9684ef49b2c3559013b147ea679004ba96edff10c8f9c2aac737f9310b180f

                                        SHA512

                                        71ae43579bb5ddc3971a3fbceb826225dcdbc79726639b44fc969a7ef65d5a6bac0fdfad3de068c0d772240f1b074e36c3f65caad58a9114655961ac5ed5279b

                                      • 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\Local\Temp\yPWwRvPuHPZL.bat

                                        Filesize

                                        208B

                                        MD5

                                        00167be2c794e6ab860c5235e4ca8a43

                                        SHA1

                                        e6362fb1a23ad4d40dd7535aa357d40c8f46cdd7

                                        SHA256

                                        de3ddc8e7e4edc4cd409b35179f7c62fd5c89707326afbbe8bfa3b2daef4315a

                                        SHA512

                                        a13edbc4002263ade18b0db124ace16d06178be0e1bc0eeb8bc305672aa046f9fd51a2e33dfd3508429475e83ceb59e8a2a074ec5c7bae1f8f79f797bbe63a2a

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-04-2024

                                        Filesize

                                        224B

                                        MD5

                                        7300403a0c0a4d60d3cd787cab5f5baf

                                        SHA1

                                        73f137851f637ae7f687169e7b9be8910018e578

                                        SHA256

                                        6e05ac83135f48699f9a5b12a58c74287fce2e16726c77021e7eb482849fb3e6

                                        SHA512

                                        9066a20ef9e0dfd6cc3552f02332b179b64ef78f7c3162fcbc6933dbe71e734ea20c6f20be0856adceac45d7dfd37f95a4daf2bc6b4da9b01af30cc889367554

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-04-2024

                                        Filesize

                                        224B

                                        MD5

                                        912deb0d9ff3786a9e416fb2273cc504

                                        SHA1

                                        39420e6a0b153ea3c386d58043451f1cf5001ea1

                                        SHA256

                                        916152a4a662d8aa9ae60fae28261e5e5be4e3e4502e9fce51be1589b3846bd1

                                        SHA512

                                        d562b8e62f1674907eca2ea89ca1372f3fbceb2e3516b099968cd58d2c42779dc0c581db939d6f40839f54ef6a97b4090ad867bf828a1e922649a87917f99c1e

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        e1c22a12f16be4a2c1bb1f22af98f14e

                                        SHA1

                                        95affffb2bfe63c8b4ed11e9248c36b06c12f8d0

                                        SHA256

                                        49b487bacf977c293198c6741be538aaaf6042749dd5cfffeb64dbc4eb050190

                                        SHA512

                                        719f89b42b476b42bbe7c0cb4f42d77916720e0a17e272570b6ee6c5952553a14559b864d13f31ce97d4103cc17282adcaec171a5e47f3736d32e587d99fa812

                                      • memory/400-44-0x0000000006E90000-0x0000000006E9A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/912-34-0x0000000005560000-0x00000000055C6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/912-36-0x0000000006660000-0x000000000669C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/912-35-0x0000000005A70000-0x0000000005A82000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/912-33-0x0000000005430000-0x00000000054C2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/912-32-0x0000000005B10000-0x00000000060B4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/912-31-0x0000000000AF0000-0x0000000000B4E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1076-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1076-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2900-19-0x0000000003710000-0x0000000003711000-memory.dmp

                                        Filesize

                                        4KB