Analysis

  • max time kernel
    6s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 05:48

General

  • Target

    c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe

  • Size

    2.0MB

  • MD5

    b26e63bcd9394df3938ee34463e495bb

  • SHA1

    405f3f9da7c1800d0b19959a1ec55ebb9abd7b62

  • SHA256

    c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618

  • SHA512

    635b23b951f31563dd138e11e291d396497c28200d81bae8ad365d0c76c123b4b906ddad06e4a5ab9da36f1106cbb607fa20c117fabfc4593aba0db35fe7574b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYw:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ye

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\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe
    "C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.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:2020
    • 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:2952
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:5104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 548
          3⤵
          • Program crash
          PID:1364
      • 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:4788
        • 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:2996
        • 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:1084
          • 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:3692
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JucdoAMWl9DG.bat" "
            4⤵
              PID:4544
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5012
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1356
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1072
                    • 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:320
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\z7HOeolfw2Rt.bat" "
                      6⤵
                        PID:2724
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4700
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:220
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1952
                          6⤵
                          • Program crash
                          PID:3316
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1084 -s 2220
                      4⤵
                      • Program crash
                      PID:4696
                • C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe
                  "C:\Users\Admin\AppData\Local\Temp\c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4168
                • 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:100
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2952 -ip 2952
                1⤵
                  PID:4700
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2404
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:5048
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3024
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 520
                            3⤵
                            • Program crash
                            PID:4456
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4564
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4652
                            • 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:4248
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5048 -ip 5048
                            1⤵
                              PID:5016
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1084 -ip 1084
                              1⤵
                                PID:4932
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1072 -ip 1072
                                1⤵
                                  PID:3608
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:3440
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:928

                                    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\JucdoAMWl9DG.bat

                                      Filesize

                                      208B

                                      MD5

                                      647d3b4e12b9b509f1b845e7ab514a7d

                                      SHA1

                                      979a781ca70c864ac257cb299a87d26e304c8a9e

                                      SHA256

                                      855f40e78e5be5c0e1d41d9c093a1f0fb044002c5d57dfef3519e28cb3807bda

                                      SHA512

                                      f54d5a3dc16e1279d0bf193dcbccbeab2a86fd8ec5f1ef623aa112a922113e20d5c00913e1a3cf16e90e2b8e011682b2c13a1f7971f64dbaf409f313f73f53c1

                                    • 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\z7HOeolfw2Rt.bat

                                      Filesize

                                      208B

                                      MD5

                                      91a974a66946fa385e819f73a9887bbc

                                      SHA1

                                      09d0c1d05b9fae7b6ae34bb199d6bd5d9ee92182

                                      SHA256

                                      086e02b6bd62bb2dae018bc05d426dc46d1004451fc95e258ddf3a2731566346

                                      SHA512

                                      41481d17a7013a72d54a83b70b5e4dd96b7740bf7d29a03a328beca40743d8666e3020a5fa6df83e4d7581a2bfb6097c8150fff2baaa2ed01796ed4cec2a9c06

                                    • C:\Users\Admin\AppData\Roaming\Logs\08-31-2024

                                      Filesize

                                      224B

                                      MD5

                                      f0454ed04b9b470a913dd9a35c87b6a4

                                      SHA1

                                      407163e91ac267e1045e06e6016d860e55086300

                                      SHA256

                                      4e5d86d76bba07024b7bd0722b52744dd6a7feb5196301267d36ec755b311c69

                                      SHA512

                                      de98e22b04a7c9cb141242785adceb6531fcef065817ef3614b7367356bd1bed70abcc6ceb37381b2c03c5892f25176c0fd2947b4c0776e2d621383f6259031b

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      20dfc3c750dcb8d95ce51114284a8df9

                                      SHA1

                                      f84fcfaa130acdda493c169172682927cb7daddb

                                      SHA256

                                      4e7f17cc936e7e9df75a726ba022f22b862ce2bd1831d558b6788d4e08961701

                                      SHA512

                                      ef73b8b7eacf699259d68731142cb1acd04cba3c8b00915ff626eb6ec032d027b6958cd5f4b8e22cc45b58f00f30d37a1f2b8da6e601696ef6977828603e12a8

                                    • memory/1084-45-0x0000000006F10000-0x0000000006F1A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2020-19-0x0000000003EF0000-0x0000000003EF1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4168-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4168-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4788-36-0x0000000006610000-0x0000000006622000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4788-37-0x0000000006B50000-0x0000000006B8C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4788-35-0x0000000005A10000-0x0000000005A76000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4788-34-0x0000000005930000-0x00000000059C2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4788-33-0x0000000005E00000-0x00000000063A4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4788-30-0x0000000000FE0000-0x000000000103E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4788-29-0x000000007361E000-0x000000007361F000-memory.dmp

                                      Filesize

                                      4KB