Analysis

  • max time kernel
    5s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 15:38

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 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\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:2508
    • 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:1696
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4968
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 548
          3⤵
          • Program crash
          PID:4880
      • 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:1560
        • 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:1500
        • 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:3632
          • 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:3844
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yAENzMInZSkx.bat" "
            4⤵
              PID:4560
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1728
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2312
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3480
                    • 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:1804
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PyQ5WLOPc9gn.bat" "
                      6⤵
                        PID:3592
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4520
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4388
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4420
                              • 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:1420
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 2212
                            6⤵
                            • Program crash
                            PID:4068
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3632 -s 2252
                        4⤵
                        • Program crash
                        PID:4928
                  • C:\Users\Admin\AppData\Local\Temp\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe
                    "C:\Users\Admin\AppData\Local\Temp\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1672
                  • 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:2736
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1696 -ip 1696
                  1⤵
                    PID:2816
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3696
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:1760
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:1228
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 520
                              3⤵
                              • Program crash
                              PID:2304
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:5032
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4912
                              • 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:3916
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1760 -ip 1760
                              1⤵
                                PID:4272
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3632 -ip 3632
                                1⤵
                                  PID:1160
                                • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
                                  C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
                                  1⤵
                                    PID:1500
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3480 -ip 3480
                                    1⤵
                                      PID:548
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1772
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:1560

                                        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\PyQ5WLOPc9gn.bat

                                          Filesize

                                          208B

                                          MD5

                                          034ed7cf3bc19a3790705c8b86d70fae

                                          SHA1

                                          0ed974ac87a2c96c68d7f1b134885f2ab3be7ded

                                          SHA256

                                          fe29b6d9b59d983d20d2e697ff25d1669138d0871f299f3b46e99c7be691c131

                                          SHA512

                                          fbf99f0e7dbd41f19a2573d2cb37f6df5504df7fd20e856897d7b4434fb1c6b05036e06294f005a95faa08ebf9787e765e24092034aa1da7d360b3bc45892967

                                        • 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\yAENzMInZSkx.bat

                                          Filesize

                                          208B

                                          MD5

                                          9ab20471e6f3948a5eeaa889d693e357

                                          SHA1

                                          6ff568815c2cb5661b4bc09440acd62ff1cc4cdd

                                          SHA256

                                          6aa7c3034fd825bf5607e4efe5ed7bf77eb452e955b6db4d0d86f4af8a80023f

                                          SHA512

                                          a304b2293d0e0eaa98fcf0762d72e882c13ca6da34b7b74aa85a798a843e407bbf914ce1f655d98234fe65ea49473205b5250289a7861293018099abb8e82c72

                                        • C:\Users\Admin\AppData\Roaming\Logs\09-01-2024

                                          Filesize

                                          224B

                                          MD5

                                          440cdd7841925ca3c0efe6ef8a1422c5

                                          SHA1

                                          ab9721f9a2dca88ffbb08ebd47da451b57393fd5

                                          SHA256

                                          892ccc2da206630cb579bf20b10008685d71b5b4de23ebdec7649fec99df9b74

                                          SHA512

                                          378230e3ca3fc1060a7bc7d93b01510e1fe453680c008ca3e55fdd8e0d466dca2ee4f737e072762a0e9e893201c707fb64b9e382964655fbd8db133b53183eda

                                        • C:\Users\Admin\AppData\Roaming\Logs\09-01-2024

                                          Filesize

                                          224B

                                          MD5

                                          6a94b4d2379287dba23b772a04d64aa4

                                          SHA1

                                          50ef3f293c92d7f31f770d133b55ad31ca322c85

                                          SHA256

                                          407fa348348e21731cd3c251a21901d06520ee25e7c1f4b2a0eb92141c3189e9

                                          SHA512

                                          a22420a5cbe5a2bcffd407ed7469f149561cced81ef0d12a06beff3266e1fea420cdb0448ce8e4513bf344ea12c54b45c630d2fd4f55efbbbfc6d9adbde1bf93

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          663e6fb4918387becf810d2ae70c9284

                                          SHA1

                                          a75b50ef9470618fa428bf16f7959a4488b379eb

                                          SHA256

                                          e08c23b3f894b4de250459a5fb5a145c4b3f9df2afc61763838983912c815153

                                          SHA512

                                          2095dc925c2dd0d6d65c6d0930126cc7793869b8c5e05ff5ade606f28b29e219288726086203f9b46ae98e4f488db6b78d550e1bd2626330447a3962ec0b0348

                                        • memory/1560-34-0x0000000005590000-0x00000000055F6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/1560-35-0x00000000062F0000-0x0000000006302000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1560-36-0x0000000006830000-0x000000000686C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/1560-33-0x00000000054C0000-0x0000000005552000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/1560-32-0x0000000005B40000-0x00000000060E4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/1560-31-0x0000000000BA0000-0x0000000000BFE000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/1672-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1672-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2508-19-0x00000000042A0000-0x00000000042A1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3632-44-0x0000000006CB0000-0x0000000006CBA000-memory.dmp

                                          Filesize

                                          40KB