Analysis

  • max time kernel
    5s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 22:20

General

  • Target

    e00d5fba3a724c3c1cede5a39f990bc0N.exe

  • Size

    2.0MB

  • MD5

    e00d5fba3a724c3c1cede5a39f990bc0

  • SHA1

    1bf1c48569532f76fb29a8d71dd81cbf8f193d69

  • SHA256

    7814d4772f410c5c6bbf073c2e9b090b974beab68cdc84aaccc15a51819c6464

  • SHA512

    9bec38cee2e23188b6dcf524e2a6ba39d8b25420bad65e58ed9dc022b1b7e616346248e5dc62b647f226cf17c24d26c30073d7df3c5b25c87219c1fc028c2a42

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YD

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 4 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 3 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\e00d5fba3a724c3c1cede5a39f990bc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\e00d5fba3a724c3c1cede5a39f990bc0N.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:4412
    • 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:1936
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 548
          3⤵
          • Program crash
          PID:1372
      • 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:4424
        • 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:4628
        • 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:4780
          • 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:4612
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6AaefKcC5MHY.bat" "
            4⤵
              PID:4088
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3180
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:632
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4456
                    • 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:2768
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DaPNIuykSusU.bat" "
                      6⤵
                        PID:3776
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4244
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2316
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2392
                              • 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:1328
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 2308
                            6⤵
                            • Program crash
                            PID:452
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 2300
                        4⤵
                        • Program crash
                        PID:3756
                  • C:\Users\Admin\AppData\Local\Temp\e00d5fba3a724c3c1cede5a39f990bc0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\e00d5fba3a724c3c1cede5a39f990bc0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2528
                  • 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:2084
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1936 -ip 1936
                  1⤵
                    PID:3180
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3492
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:2676
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:5112
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 520
                              3⤵
                              • Program crash
                              PID:2408
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:1892
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3912
                              • 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:4328
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2676 -ip 2676
                              1⤵
                                PID:1596
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4780 -ip 4780
                                1⤵
                                  PID:228
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4456 -ip 4456
                                  1⤵
                                    PID:4812
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2900

                                    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\6AaefKcC5MHY.bat

                                      Filesize

                                      208B

                                      MD5

                                      e5961a51758b033b28785d57ecfc0f98

                                      SHA1

                                      4d9830a0cef39850bfe2d459ea932454cdcb1f20

                                      SHA256

                                      7d2698f97b93bacb7ff4e5cfdf01f400e4dc01cf06a8b0aa34f946a897dabf0f

                                      SHA512

                                      d6fcc24fd3b702e4f81bafccf72d486f9918c15a1ae96b305b973a5b1f6c62907b35a6272b744d8dc9ff23c51d018a6e38996d3c4cbe5bcefc98fe9353eda43a

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

                                      Filesize

                                      208B

                                      MD5

                                      1cb34ce737a1e0c111aee729d8e5298c

                                      SHA1

                                      ead52b55a8b6371130f8ce9d24983761ee028a14

                                      SHA256

                                      4dee015a428ff07a72eb5310ea4dea8add1441b9e21aa42488acdca7a86132a2

                                      SHA512

                                      9e5c63ade36735fe43f261fdf7814f95edac1d96abebef33aa273f9dfd2650e24acb5db457cd608efe3b72a57e18685dac0e74f2e90fc6efb444a45dd7f1c49d

                                    • 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\09-06-2024

                                      Filesize

                                      224B

                                      MD5

                                      51a2303e9c4ca717688534adc5b058b9

                                      SHA1

                                      586ec30393ef49f9f3d1249214919d629ea2ec34

                                      SHA256

                                      f1b323934104d9ba61f8e6c6db79772ae664f0a7e818ecb8525b92db1f498403

                                      SHA512

                                      354251b94388de439e059d127f1a76ccf6da08dc64644bdd21bb259c21908db7fd6174c104f306bccfc4d8da223ec934d3508e05a89e62b079b2aad2df8943da

                                    • C:\Users\Admin\AppData\Roaming\Logs\09-06-2024

                                      Filesize

                                      224B

                                      MD5

                                      74688e9dc418b655f7dac8ee1b8df981

                                      SHA1

                                      cf64abc88605376350878b190c6473cb749462f1

                                      SHA256

                                      c540c2280abc31ec73f2a72ae1e971aeac385c9a8609ca2dd32ccf0c97905c84

                                      SHA512

                                      13d21221560aa9e464878b36af101ac68972700968d3f2bccc0427dd4550cd92830c053735ff80b0f7cf8e3af448a29ce2d29a55b7bce5383ba54b92ec4f28f8

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      944d5aba6605cbeaf58b42a49d4f553c

                                      SHA1

                                      f886cb2529ac312393f5bf5ece6a0b3705bd15e1

                                      SHA256

                                      57ba417120aadafdcd02565cc134372a67ccf744ee325f03c7b6c23bc3179353

                                      SHA512

                                      12c055116e3e1a04fadd043f8e5b5a591720c041384659a33f7130a3c29143bf06069ddecd26c42bbaf535338428990ef05f2324e6edfbe57f1b64a2d327c190

                                    • memory/2528-28-0x0000000000A70000-0x0000000000A90000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2528-20-0x0000000000A70000-0x0000000000A90000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3912-73-0x0000000001230000-0x0000000001250000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3912-67-0x0000000001230000-0x0000000001250000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4412-19-0x00000000026D0000-0x00000000026D1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4424-29-0x0000000072F2E000-0x0000000072F2F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4424-37-0x00000000065F0000-0x000000000662C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4424-36-0x00000000060B0000-0x00000000060C2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4424-35-0x0000000005450000-0x00000000054B6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4424-34-0x00000000053A0000-0x0000000005432000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4424-33-0x0000000005A00000-0x0000000005FA4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4424-32-0x0000000000A80000-0x0000000000ADE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4780-45-0x0000000006720000-0x000000000672A000-memory.dmp

                                      Filesize

                                      40KB