Analysis

  • max time kernel
    5s
  • max time network
    110s
  • 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 14:35

General

  • Target

    815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe

  • Size

    2.0MB

  • MD5

    815df3ce8f1ebbbdcf8fd3b5391a2a70

  • SHA1

    cc19616d3d9ed0dd4ef6bac2fcf5251bec303f67

  • SHA256

    24ce8da6f76bfa558cff3079df170e78893679ccce334fadaf21d961291b30f0

  • SHA512

    0aec8172b2b689874b50d5861a11f16cd8dc22116f46a108f1491e14b669bd15f34b1c5cb9ea356a0c1fbfe154ef66050dbf43e74cedc2992e1c3fa3e11b8bc1

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY4:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y2

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\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe
    "C:\Users\Admin\AppData\Local\Temp\815df3ce8f1ebbbdcf8fd3b5391a2a70N.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:3736
    • 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:1652
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 556
          3⤵
          • Program crash
          PID:4612
      • 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:2216
        • 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:616
        • 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:3124
          • 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:4892
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IXBdx6DDRbMA.bat" "
            4⤵
              PID:2660
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5028
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:872
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4972
                    • 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:676
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hZdX9iEjqMN7.bat" "
                      6⤵
                        PID:1592
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4388
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1668
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:1172
                              • 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:3240
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2252
                            6⤵
                            • Program crash
                            PID:2652
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 2244
                        4⤵
                        • Program crash
                        PID:460
                  • C:\Users\Admin\AppData\Local\Temp\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe
                    "C:\Users\Admin\AppData\Local\Temp\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2936
                  • 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:1740
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1652 -ip 1652
                  1⤵
                    PID:4024
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3124 -ip 3124
                    1⤵
                      PID:2696
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3968
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3060
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2120
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 520
                                3⤵
                                • Program crash
                                PID:3844
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3180
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:2012
                                • 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:4956
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3060 -ip 3060
                                1⤵
                                  PID:2128
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4972 -ip 4972
                                  1⤵
                                    PID:3640
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:4424

                                    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\IXBdx6DDRbMA.bat

                                      Filesize

                                      208B

                                      MD5

                                      131f1b82de82d03ca1750a97a6736730

                                      SHA1

                                      0895f9d80d8e2ca9b86c36b59cf289092191a5d3

                                      SHA256

                                      d43e7048ef88e1c7dde9a43790db36273d843c92c1d90134b1b66472e5ef60f3

                                      SHA512

                                      f58127091eb832314f40b11544e9f666644626b78006b589e00d14a013e7b6ec2816267745f36a31a9abae194220145510e637f5731843de32a6e4588f5a70e4

                                    • C:\Users\Admin\AppData\Local\Temp\hZdX9iEjqMN7.bat

                                      Filesize

                                      208B

                                      MD5

                                      358b989083f7f6eb59b11cdd4ea0582c

                                      SHA1

                                      1fc75760903b9074b448e27219c225585bcc1c0f

                                      SHA256

                                      96c95510afea63860549054471b7c8952719459cfedc2786c455f07cfb47e83c

                                      SHA512

                                      c1ea0e46cc78e99bcbd85852608045303b558e9c0d5a268a47103a162da5042430ad9b9c644da5e460283e3426d9a3169797dc22670eaa44262f9eebf974a21c

                                    • 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

                                      42bb54213ebc7bc1e47cbe983666ce54

                                      SHA1

                                      149f717ddfa35983bd6dee6e9380e0624291ec08

                                      SHA256

                                      1ad62adf8f1dc0909066ec2d290bea338232021aa51043cf739f1c8e93b6b4bc

                                      SHA512

                                      c16e7d542b81939f414b4323fb7320688cd6c0f4e52b950e4654e0fd4ce781d74849af71e270102c7ca1ea699c5d8882afb026c0ff1736a1a2104f72d23f5a82

                                    • C:\Users\Admin\AppData\Roaming\Logs\09-12-2024

                                      Filesize

                                      224B

                                      MD5

                                      4dafb623fe0b8cf713946843f4d0b6c0

                                      SHA1

                                      ca27369f137f81bc96a7fe27e17a1b4a4ec310e5

                                      SHA256

                                      a552f7afd8c147d115ee98c4f0e7e4eeeeaeb47626b3048ae4b5de26b6b2ba67

                                      SHA512

                                      2d80a33cc6da82dc6411d37c8e0340a83ac5d02890b00ba698299ce8fedc25a7089a969b3dc3d96627f2d1d63f1a2c6e3cf24a2dd1bfb94e56cb4cc8cd5bfc32

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      0a7243608dad487ef1ff19f5efdafb3d

                                      SHA1

                                      35df6897408f2e30edb513c36b32b8e9f21682ae

                                      SHA256

                                      db3c08292c0cd99bea22c584460a9d33352bd58476e0545b7676bfac19f7f85c

                                      SHA512

                                      862979e4a1ba2932206df51ee8f3f70a8386388c7d1c24ee96dc4c6126f2847e8668b2c809a3b3cc4924a9d26b5b292c29f6348d3efc226732e45be9a9b22d9f

                                    • memory/2012-80-0x00000000001A0000-0x00000000001C0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2012-74-0x00000000001A0000-0x00000000001C0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2216-29-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2216-37-0x0000000005E30000-0x0000000005E6C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2216-36-0x00000000058F0000-0x0000000005902000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2216-35-0x0000000004D10000-0x0000000004D76000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2216-34-0x0000000004C70000-0x0000000004D02000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2216-33-0x00000000050D0000-0x0000000005674000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2216-32-0x0000000000180000-0x00000000001DE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/2936-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2936-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3124-45-0x0000000006990000-0x000000000699A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/3736-19-0x0000000003610000-0x0000000003611000-memory.dmp

                                      Filesize

                                      4KB