Analysis

  • max time kernel
    5s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 00:44

General

  • Target

    1aa6dada75da0b91d3555f79cf9bebd0N.exe

  • Size

    2.0MB

  • MD5

    1aa6dada75da0b91d3555f79cf9bebd0

  • SHA1

    5f061ae0a159857d6e05840112099d0c7edb5f7b

  • SHA256

    51c0d1a1e0fae88a14c5e103bd22c512f6157b4d14fe8079ffcdd1339996162e

  • SHA512

    228e0bef9041f81266511e2b3ade07aa866516e11683bf9477d1953625e57bd65583fcce256aa5c89cce3c6e49929a6e4105a129fbfcc194e61d89ab0957cb3e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYD:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y9

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\1aa6dada75da0b91d3555f79cf9bebd0N.exe
    "C:\Users\Admin\AppData\Local\Temp\1aa6dada75da0b91d3555f79cf9bebd0N.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:3408
    • 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:4468
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1720
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 552
          3⤵
          • Program crash
          PID:4980
      • 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:4408
        • 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:1384
        • 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:976
          • 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:3036
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rmx4KWUGet7H.bat" "
            4⤵
              PID:1180
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1152
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3008
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1724
                    • 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:4828
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AqW1oqWuSvQz.bat" "
                      6⤵
                        PID:5028
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4064
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2912
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3732
                              • 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:952
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 2244
                            6⤵
                            • Program crash
                            PID:552
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 2304
                        4⤵
                        • Program crash
                        PID:996
                  • C:\Users\Admin\AppData\Local\Temp\1aa6dada75da0b91d3555f79cf9bebd0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\1aa6dada75da0b91d3555f79cf9bebd0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:264
                  • 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:3032
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4468 -ip 4468
                  1⤵
                    PID:1916
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 976 -ip 976
                    1⤵
                      PID:4496
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:1552
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4584
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2780
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4584 -s 520
                                3⤵
                                • Program crash
                                PID:4228
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1484
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4276
                                • 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:3636
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4584 -ip 4584
                                1⤵
                                  PID:4060
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1724 -ip 1724
                                  1⤵
                                    PID:2232
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4584
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:3968

                                      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\AqW1oqWuSvQz.bat

                                        Filesize

                                        208B

                                        MD5

                                        5290d789b17071bced5872390efffc4c

                                        SHA1

                                        c6880de02a43b00f2f036cc07c70f45b9acb792f

                                        SHA256

                                        d217470f29223b4dd81c99d9c652f7b93b281ed10c7a921299bae5144b11d0f0

                                        SHA512

                                        9c6b6a05b8a09a0685e7cddeb9ee6f07fa2bdb78b675d4f0e122f259ec112fcdd0c34ea06cf33f48d7096131ecdb1f3187bf65b53eb7fe2481c1c53cd87ad013

                                      • 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\08-24-2024

                                        Filesize

                                        224B

                                        MD5

                                        6d833e68e5d0fd75c0ed0e37fb41efa8

                                        SHA1

                                        6f91cadf202ca4b93ed665d600fd512678241742

                                        SHA256

                                        6cef3146eb390b3cdd188485d076dc65afdacc9164b73834e3b9f2f565a8a9a8

                                        SHA512

                                        c21025df59d1dffed2d0ba999269495e6eaf64f66dfbdfa1ba3e7b23b739436c5748d72e8a74b09f510a754c6325e5f05289a1cba7267ed2ecdd889595b75da1

                                      • C:\Users\Admin\AppData\Roaming\Logs\08-24-2024

                                        Filesize

                                        224B

                                        MD5

                                        055b351138d23c94baf2b6a9d3164f45

                                        SHA1

                                        1916430a8c78ecb289e9945dbb9175ec38787744

                                        SHA256

                                        b439004c8d3baff2ce4a91290e3ef0733ded34e4084218dd700b5a705c52b471

                                        SHA512

                                        10afe6cbcff84b8643a6411a193d80301f85f15ba00c5a1ec014c35fd01052cda1be3f99aa4bb817a428ad4c41d30c70dd8f4f1ee32d1a80d001e9ec12e00795

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        8ac75e7f6566736c10e8a2e9b79460f2

                                        SHA1

                                        e3789a51db3c15b783b8b782b5af8dfb8c7bd015

                                        SHA256

                                        d97fd7b9ba7b712812d3d2aa165c054b60d115dab816a7823ce32a15258864b5

                                        SHA512

                                        d64c2e8d536011bbf264b6fe16ced79f82b79c22aea85caf7494f172a812926f6c487ea04967e1dbac5eee0e3afc0e932fd41a1d936a217a814a3591fa73e586

                                      • memory/264-20-0x0000000000450000-0x0000000000470000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/264-28-0x0000000000450000-0x0000000000470000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/976-45-0x00000000069E0000-0x00000000069EA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/3408-19-0x0000000001100000-0x0000000001101000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4276-70-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4276-76-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4408-29-0x0000000072A1E000-0x0000000072A1F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4408-37-0x00000000060A0000-0x00000000060DC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4408-36-0x0000000005B60000-0x0000000005B72000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4408-35-0x0000000004F90000-0x0000000004FF6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4408-34-0x0000000004EA0000-0x0000000004F32000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4408-33-0x00000000053B0000-0x0000000005954000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4408-32-0x00000000003E0000-0x000000000043E000-memory.dmp

                                        Filesize

                                        376KB