Analysis

  • max time kernel
    5s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2024 19:19

General

  • Target

    dbf5896dc0cfa5e81ad8c24d89b59f40N.exe

  • Size

    2.0MB

  • MD5

    dbf5896dc0cfa5e81ad8c24d89b59f40

  • SHA1

    2decd7ca08d44a5dcdc4726dd22440549ed56ebe

  • SHA256

    3f70133c1a446d59d66fd1929617625ff6cd3bbabd5fb5d25e22c53483e70eaf

  • SHA512

    2f2e1ee78bf96eb0d02c9f1ecae7e5651b037fc28f7d809c967e09509f655500cc9222ebf83c14d6358f70ecfdcde04ae868b3b2d76bb0ae39e9bc1e1872ffbd

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++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 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\dbf5896dc0cfa5e81ad8c24d89b59f40N.exe
    "C:\Users\Admin\AppData\Local\Temp\dbf5896dc0cfa5e81ad8c24d89b59f40N.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:1892
    • 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:1948
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 556
          3⤵
          • Program crash
          PID:3172
      • 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:1212
        • 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:4452
        • 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:2336
          • 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:4536
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gS1GgofpSOCy.bat" "
            4⤵
              PID:2444
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2044
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4704
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2324
                    • 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:888
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MlqDGlf1qO9l.bat" "
                      6⤵
                        PID:4264
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:436
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1612
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3100
                              • 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:4876
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 2264
                            6⤵
                            • Program crash
                            PID:1712
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 2288
                        4⤵
                        • Program crash
                        PID:4744
                  • C:\Users\Admin\AppData\Local\Temp\dbf5896dc0cfa5e81ad8c24d89b59f40N.exe
                    "C:\Users\Admin\AppData\Local\Temp\dbf5896dc0cfa5e81ad8c24d89b59f40N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:3004
                  • 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:4064
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1948 -ip 1948
                  1⤵
                    PID:1000
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2336 -ip 2336
                    1⤵
                      PID:3524
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:5068
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4896
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4516
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 520
                                3⤵
                                • Program crash
                                PID:1088
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4272
                              • 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:3508
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4896 -ip 4896
                                1⤵
                                  PID:4288
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2324 -ip 2324
                                  1⤵
                                    PID:4740
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2276
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:716
                                      • C:\Windows\system32\sihost.exe
                                        sihost.exe
                                        1⤵
                                          PID:2968
                                          • C:\Windows\explorer.exe
                                            explorer.exe /LOADSAVEDWINDOWS
                                            2⤵
                                              PID:3112

                                          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\MlqDGlf1qO9l.bat

                                            Filesize

                                            208B

                                            MD5

                                            8ba05f389555d39137bb044c2f1aa600

                                            SHA1

                                            507a7910822bc9f366d656ce0157bbe7e2b29c03

                                            SHA256

                                            e7efac7c7309edccf09edf72a910f47e9747573eb29818b8162464c86dbfb180

                                            SHA512

                                            c3e32f1acf0745edacfe64dc9d71f8a22d55160bc3ce2195d29adeadb73abe61ad62384c71e2a16a176ff75177f73629bd238ed895085debbf0617b9ec60652a

                                          • C:\Users\Admin\AppData\Local\Temp\gS1GgofpSOCy.bat

                                            Filesize

                                            208B

                                            MD5

                                            dd2ac681db5db602042e5300badbbe5c

                                            SHA1

                                            d57b17f7b3dd45429af60b23c47b5ce801e8a4aa

                                            SHA256

                                            ace55a0d29093ffefeef640fd9f0feacb4093fb9c03c92cd11f5c3a614d93971

                                            SHA512

                                            7791e423b9de18b02a00c840c770f5c70a8cba46db42bebd9ca93295aa30705524087a393674efa9af6feff183bdf78c55371e4390e1960af5f8cf768dbcc86c

                                          • 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\08-06-2024

                                            Filesize

                                            224B

                                            MD5

                                            9db577bab5f8935ee79a73e8499edc71

                                            SHA1

                                            27f8ef341e977df34d0e2480b702181a75593b8a

                                            SHA256

                                            2f8b99527bde846e8e34fe27ecf7e688d573b150d49f996cc835c7965e508af1

                                            SHA512

                                            3de0647b46534c21735e9222cf8a93260b7497e4f1e04a2d83e99cf6d8302f448fbe9f2ccebc386ded7449cb64fbc88b75942c236318c125af625c8d2d4948df

                                          • C:\Users\Admin\AppData\Roaming\Logs\08-06-2024

                                            Filesize

                                            224B

                                            MD5

                                            e40b004d282b634d8e8ac1f40e966593

                                            SHA1

                                            8bc4e3e97c1b100f5ac496fa95dd67ff03fbd0d8

                                            SHA256

                                            023b3158d3be38bd9f170ede4e090748847ebc4c1ef0d5773f7f96dddb2a0c8e

                                            SHA512

                                            6640121e0030a37febf2ff4ee8159a1ca0a5ef7b15db2d3c02a3b1b01e7a69688a855dfaa75234ca00f99fc7218f3d2248c3ded01ae642cb1f3666547fa124bc

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            10f6d1587d52c2fb2cc785a7b49bf612

                                            SHA1

                                            fc80f92c370f239a47ed30fa28723a4ba7f434da

                                            SHA256

                                            089b71e0404543f664d336457d713bcd8eeafaccae1a53ac1a45afc2caa7eca6

                                            SHA512

                                            91ed861ac7dfed561379278118c074e9e8ab31307cc4e7891e3db32ba64bc00e6c530aa6224571ed7287f9e97759c1f77a3624d9240db694b1e6d1135b742226

                                          • memory/1212-36-0x0000000005790000-0x00000000057A2000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/1212-35-0x0000000005240000-0x00000000052A6000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/1212-34-0x0000000005120000-0x00000000051B2000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/1212-37-0x0000000006380000-0x00000000063BC000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/1212-33-0x00000000057F0000-0x0000000005D94000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/1212-30-0x00000000006C0000-0x000000000071E000-memory.dmp

                                            Filesize

                                            376KB

                                          • memory/1212-20-0x000000007365E000-0x000000007365F000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1892-19-0x0000000003880000-0x0000000003881000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/2336-45-0x00000000067D0000-0x00000000067DA000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/3004-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/3004-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4912-74-0x0000000000230000-0x0000000000250000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4912-80-0x0000000000230000-0x0000000000250000-memory.dmp

                                            Filesize

                                            128KB