Analysis

  • max time kernel
    5s
  • max time network
    65s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2024 01:11

General

  • Target

    74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01eN.exe

  • Size

    2.0MB

  • MD5

    dc400e2cd941803d50bc85f3e6745570

  • SHA1

    c74e52219a6bb67450f3755aaaf6389f5e98e889

  • SHA256

    74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01e

  • SHA512

    baa26cfbe57e6f590bf5c880575025fae571c34cf334defe481c72577fb2766fdf51ae4186cb7ff8fe1cb4cce8f48fb65c4dc9e19544d79983930cff92e582ef

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yx

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 1 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 5 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\74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01eN.exe
    "C:\Users\Admin\AppData\Local\Temp\74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01eN.exe"
    1⤵
    • 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:708
    • 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:3372
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:5040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 548
          3⤵
          • Program crash
          PID:2268
      • 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:1924
        • 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:1556
        • 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:1980
          • 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:1092
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Da4p1XslGUGA.bat" "
            4⤵
              PID:396
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1408
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2132
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3416
                    • 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:1796
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\xFxdXvjXDFP2.bat" "
                      6⤵
                        PID:4252
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2448
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1408
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3416 -s 1948
                          6⤵
                          • Program crash
                          PID:1092
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 2248
                      4⤵
                      • Program crash
                      PID:2928
                • C:\Users\Admin\AppData\Local\Temp\74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01eN.exe
                  "C:\Users\Admin\AppData\Local\Temp\74da1c07cceb3e5ce1c76f4133f34231c735d8ab0f9d888a2510357655e1d01eN.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1128
                • 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:4160
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3372 -ip 3372
                1⤵
                  PID:1944
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1980 -ip 1980
                  1⤵
                    PID:3048
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4528
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:60
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4824
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 60 -s 520
                              3⤵
                              • Program crash
                              PID:2068
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3212
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4848
                              • 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:2972
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 60 -ip 60
                              1⤵
                                PID:2892
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3416 -ip 3416
                                1⤵
                                  PID:3952

                                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\Da4p1XslGUGA.bat

                                  Filesize

                                  208B

                                  MD5

                                  4f3193008430b1882f64494f766a93cb

                                  SHA1

                                  6740d544d48eda680b11572f3f18a06426cf5b33

                                  SHA256

                                  fc2c2bf2c5950109f7c642222047304c19c1f526d2c40b46f9f05c9cb3f31cb5

                                  SHA512

                                  57dabf19a4145f6e2f5a84ebd8c33bcda4565713aaae4d9d8dfde5c39c117944483d1338f48d6f2ad77663a70d31a7e749ba7e1cfb3e12813a37acc1af135617

                                • 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\xFxdXvjXDFP2.bat

                                  Filesize

                                  208B

                                  MD5

                                  d7b495b49b4acf0e5ab56adbd92702c3

                                  SHA1

                                  3f4ad3c4c57cb4d107008b957c2f3275554a8b55

                                  SHA256

                                  3921169dac2610dafb92cdf934805b9c6784959bf0d7fd7253d3a86988dd7096

                                  SHA512

                                  aa909a9b774ac42ec59546318fdd7ea42ac0d6ef5408b4de69528a69c90f9c948aa94b062a4b2feeb64232d6feca1439d50a23b3258e33cb321a160206edd901

                                • C:\Users\Admin\AppData\Roaming\Logs\11-06-2024

                                  Filesize

                                  224B

                                  MD5

                                  cfdbe61610e3b710acf0d058cf1e0a96

                                  SHA1

                                  f4313911941b9f9de8b68dbb0db6bfd45eca7469

                                  SHA256

                                  bbe870a8c3afe5e618bf11ca19c053e9e089935a7f598619c6111ffbe03fa371

                                  SHA512

                                  649ed7421e9eaa2e3b8532e78a47b517fa210880b03334c607b66a282f9701d9811855448a6a52e06f454d93567e99d91068be10ac02daf4a8abfac6dba0231e

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  70d1b8594c8f623566e7525e50e63011

                                  SHA1

                                  64b1aface38c89d0312ddf4a74c449170b4bb0af

                                  SHA256

                                  d6f2b07b724a9ee20de00dc7a371f5e3becb577d9ebb18eec7d1bf0d2cb49a85

                                  SHA512

                                  7fbf17c71c82271bf3936b13f707b2525708eb6e0e26358d9aa2173dd0c264543220f8a988d5ef29e25dd6caf9b1a9f9ad1e71d0078165e82787c37a666428c6

                                • memory/708-18-0x0000000003C80000-0x0000000003C81000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1128-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1128-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1924-35-0x00000000062C0000-0x00000000062D2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/1924-36-0x0000000006800000-0x000000000683C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/1924-34-0x0000000005650000-0x00000000056B6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/1924-33-0x00000000055B0000-0x0000000005642000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/1924-32-0x0000000005AB0000-0x0000000006054000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/1924-31-0x0000000000C80000-0x0000000000CDE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/1980-44-0x0000000006C70000-0x0000000006C7A000-memory.dmp

                                  Filesize

                                  40KB