Analysis

  • max time kernel
    5s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-09-2024 11:27

General

  • Target

    964221e2d1782fa804dc6e965ee4f920N.exe

  • Size

    2.0MB

  • MD5

    964221e2d1782fa804dc6e965ee4f920

  • SHA1

    be0fcc6e0e64cee8bf68ca0f8665b06dc26933e6

  • SHA256

    b3c2f56de0655f102fe52ba1aec7369f7a79bf37f563c5f1efe41211d26b2d09

  • SHA512

    ab4a683dc080d1c0f5f584a20631255d47e2745305c5e116f89e5cdb636f611fd8cf28b62acca95a8ab4c224a9bc62b21208b81722383323d1357da777305bc6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYu:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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 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\964221e2d1782fa804dc6e965ee4f920N.exe
    "C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.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:2404
    • 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:3540
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 548
          3⤵
          • Program crash
          PID:1804
      • 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:2600
        • 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:4528
        • 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:4532
          • 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:4044
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\dX8rN5jyZIqS.bat" "
            4⤵
              PID:5032
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2700
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2068
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2100
                    • 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:444
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MsmYjntUT5U9.bat" "
                      6⤵
                        PID:5044
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1072
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3248
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 2232
                          6⤵
                          • Program crash
                          PID:4772
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1988
                      4⤵
                      • Program crash
                      PID:3612
                • C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.exe
                  "C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3320
                • 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:2520
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3540 -ip 3540
                1⤵
                  PID:2064
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4532 -ip 4532
                  1⤵
                    PID:232
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2152
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4900
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:1448
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 520
                              3⤵
                              • Program crash
                              PID:1608
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:372
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3548
                              • 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:4968
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4900 -ip 4900
                              1⤵
                                PID:2420
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2100 -ip 2100
                                1⤵
                                  PID:1116
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4920
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1936

                                    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\MsmYjntUT5U9.bat

                                      Filesize

                                      208B

                                      MD5

                                      59b3e6972bfa2eb42f996104f7b46746

                                      SHA1

                                      4728574e8557f8b417a7f1211e1e0c48b42a1392

                                      SHA256

                                      2d28da8182380f18370fe2dd3c01839e36b25a68c882e07979ebe0e30803f95e

                                      SHA512

                                      b786ec73e4ab079ffa95418c621ca780ba067049270a1e6564444671184c1c07432a4bfb2790459d0e8bd25e2ac54bd0828710578d30e42915f22e7c302d5bb2

                                    • C:\Users\Admin\AppData\Local\Temp\dX8rN5jyZIqS.bat

                                      Filesize

                                      208B

                                      MD5

                                      f51d7af302721a6185bfb6dc8391d0c5

                                      SHA1

                                      2efae67249a049fc78d958a4fba9690dbc18fd63

                                      SHA256

                                      4e57019e0a0e41b4922725bd21c0ca7dc7c0634aaa464cebdd805956336e5fb4

                                      SHA512

                                      7de31acdd590a337127d9ca5be9f0bf180c374eea5210f453f16ffe9367cd39b7111d79392fc741b83b3787b921d3e916e0a8cd19e37943c49d098574dca074b

                                    • 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\09-12-2024

                                      Filesize

                                      224B

                                      MD5

                                      217a09caa60abae6ac82d8030bcec267

                                      SHA1

                                      762ae97c7b7cc7002e917d228fe189acd5f6bd26

                                      SHA256

                                      061a32c15ee75b7060f031cbfbe2431db4d2665636f2d61348d47abf9dc61d7d

                                      SHA512

                                      ac8982a67b8a757f1194fdc1958dfcfb566e0adc2affb63ab8173f35a86a23424afe56d1f1f1f99bfbf071521c602fb6d62dd989c85f5d3fe28f7a324dbbd204

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      60f8e60db7f4bad3f386f6baf4564388

                                      SHA1

                                      7aa106cafcff2e473b5d897e529005c89464cd01

                                      SHA256

                                      335453265e1955a2e5b205b285e7e2f62e689119b2d0041c01d9768ea41706a0

                                      SHA512

                                      87768a69c9517565323abe3fa5fa685502bc01c2c20a23ed99b83269212d4175feb7a84b48da3c259af2a775987f8a7894cb9919a5c628daef30f8496aef7da5

                                    • memory/2404-18-0x0000000004680000-0x0000000004681000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2600-34-0x0000000004B50000-0x0000000004BB6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2600-35-0x00000000050A0000-0x00000000050B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2600-36-0x0000000005D90000-0x0000000005DCC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2600-33-0x0000000004A80000-0x0000000004B12000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2600-32-0x0000000005100000-0x00000000056A4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2600-31-0x0000000000130000-0x000000000018E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3320-27-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3320-19-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3548-73-0x0000000000E00000-0x0000000000E20000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3548-79-0x0000000000E00000-0x0000000000E20000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4532-44-0x0000000006D90000-0x0000000006D9A000-memory.dmp

                                      Filesize

                                      40KB