Analysis

  • max time kernel
    5s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 00:29

General

  • Target

    2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854eN.exe

  • Size

    2.0MB

  • MD5

    73d21f1bac804fe9d261104282199300

  • SHA1

    9c62742737837dabcd85cd6dd30ff2ff65c878d4

  • SHA256

    2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854e

  • SHA512

    7aeacc35f49b9c94d8dcaf97448dbbb9c0a3d29c082105f64142bcd4a87538e9323187f99b2dc08f4686feb272fb6c3630e256473fb4b0c8b91f51efecf1e8bb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYQ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YW

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 7 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\2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854eN.exe
    "C:\Users\Admin\AppData\Local\Temp\2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854eN.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:4656
    • 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:2904
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 548
          3⤵
          • Program crash
          PID:4912
      • 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:3208
        • 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:4660
        • 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:1936
          • 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:2340
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QyRImQj5LS1B.bat" "
            4⤵
              PID:4316
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1668
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2300
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2800
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 2008
                  4⤵
                  • Program crash
                  PID:1768
            • C:\Users\Admin\AppData\Local\Temp\2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854eN.exe
              "C:\Users\Admin\AppData\Local\Temp\2975897e9cb6d8750b03f88b2b7724dd0e34a855be719866084e098d5c60854eN.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1300
            • 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:3144
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2904 -ip 2904
            1⤵
              PID:4652
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:1596
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:3764
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:3600
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 520
                        3⤵
                        • Program crash
                        PID:1064
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:1108
                        • 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⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:3864
                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                          3⤵
                            PID:3652
                            • 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⤵
                              • Scheduled Task/Job: Scheduled Task
                              PID:4392
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AOGDxz3zU849.bat" "
                              4⤵
                                PID:1056
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  5⤵
                                    PID:2840
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    5⤵
                                    • System Network Configuration Discovery: Internet Connection Discovery
                                    • Runs ping.exe
                                    PID:1944
                                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                    5⤵
                                      PID:4524
                                      • 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:4324
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 2256
                                    4⤵
                                    • Program crash
                                    PID:1768
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:392
                                • 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:764
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1936 -ip 1936
                                1⤵
                                  PID:4352
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3764 -ip 3764
                                  1⤵
                                    PID:1472
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3652 -ip 3652
                                    1⤵
                                      PID:1476

                                    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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                      Filesize

                                      701B

                                      MD5

                                      5de8527438c860bfa3140dc420a03e52

                                      SHA1

                                      235af682986b3292f20d8d71a8671353f5d6e16d

                                      SHA256

                                      d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                      SHA512

                                      77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                    • C:\Users\Admin\AppData\Local\Temp\AOGDxz3zU849.bat

                                      Filesize

                                      208B

                                      MD5

                                      c7cd82dfac33df0bd42af6dac5c6e6c5

                                      SHA1

                                      8b42ae6386c1bf5be0d45176603ac2468b4f6bdc

                                      SHA256

                                      84bee85bc9ce7255b2c1da2e4be231a6daff0a8315015642b5230382a5b154c2

                                      SHA512

                                      838f85e080b019262ed5e71506338d509eec198ab9e1dd075ed07fd634d5fb0724ffd2128a0586a88eabcf3d8bc206fdf92370cb26bac362315f9bd45982bf6c

                                    • C:\Users\Admin\AppData\Local\Temp\QyRImQj5LS1B.bat

                                      Filesize

                                      208B

                                      MD5

                                      5e52815664ed5dbdd196b98456f98632

                                      SHA1

                                      e3774e902469edf66614ac521ed1482fe8b79559

                                      SHA256

                                      4045257ea4f169599b8d987da7559656a8c37c4602a1d856f34d458ac96872f1

                                      SHA512

                                      a4285e951a4505d01dd6e845150ac1fe55757fe6d8cf62bbd5dd58cf5b7aa49287fe7094bdf698986543fe6735b12945c7c1854d586dca67feaad1eb2e3862a7

                                    • 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\10-22-2024

                                      Filesize

                                      224B

                                      MD5

                                      cc1739e1348578db2df8bc288221f989

                                      SHA1

                                      bad134af824d6ab326d8269acc94b2a57f13d1dd

                                      SHA256

                                      d5d56447080147739d9143e84e42426b61000a8ad445a73f7fc028db29ed425f

                                      SHA512

                                      a02d42a0c617b9ee3bfb907761a9158e64869dbf6d8f8e4169319687030816234a06130ed38ae58801aa0888772afad99720c02fdf4742c4785a79ebec83f60b

                                    • C:\Users\Admin\AppData\Roaming\Logs\10-22-2024

                                      Filesize

                                      224B

                                      MD5

                                      74b82d7c9dde28bd4d295d432367211d

                                      SHA1

                                      1ef914fc19bb69e8aae35c5dff3a04edf3d7bca6

                                      SHA256

                                      887d3b10936796bc959581b2ebbadccf94cc5a908e4e14e731765e205247e8c2

                                      SHA512

                                      f7d72d4cd8423dffefbc66def5289e8f0746c476e6f3c73816df297277cc9b6452e74c59e8d449c897e7c501cc5bec34cc66155d5fc5107a1938227516c7f47c

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      a439915d13be82a4b6a05ec9027a618f

                                      SHA1

                                      fc98d25babc40c2faab484ce0306a91bc4a6c553

                                      SHA256

                                      98b05962538023fc8c948ac22066156e602ed57d65ce8898116205d2a75389ae

                                      SHA512

                                      411e95826c65f354396ba580853049c5ff2311cddb64b6fd1e5f4b34a94382567eb3e87dbc23c459401bd562495b9aaba83331ba9e1b39ee0d95eeeebdfa3e1f

                                    • memory/392-76-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/392-70-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1300-28-0x00000000001D0000-0x00000000001F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1300-20-0x00000000001D0000-0x00000000001F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1936-44-0x0000000006CA0000-0x0000000006CAA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/3208-31-0x00000000003E0000-0x000000000043E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3208-36-0x0000000006060000-0x000000000609C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/3208-35-0x0000000005270000-0x0000000005282000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/3208-34-0x0000000004D00000-0x0000000004D66000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/3208-33-0x0000000004DA0000-0x0000000004E32000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/3208-32-0x00000000052B0000-0x0000000005854000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4656-19-0x0000000003CF0000-0x0000000003CF1000-memory.dmp

                                      Filesize

                                      4KB