Analysis

  • max time kernel
    5s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 02:20

General

  • Target

    a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe

  • Size

    2.0MB

  • MD5

    864fa073b942b1b23b62fa012c06683d

  • SHA1

    36beb5c3b1c9743662c85ae78bb25e72cca03bb5

  • SHA256

    a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b

  • SHA512

    bc428acb0c08f3083a05b564a59dcb78f635fd97d0f7b09f002418cd074941d9de15a537f8923a15f68507a0a682ad19f23a595b58d8b64708d133e72bcbb864

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

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

    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 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 3 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe
    "C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.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:3940
    • 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:3984
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 548
          3⤵
          • Program crash
          PID:892
      • 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:3632
        • 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:2272
          • 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:208
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9kfq0615SnBy.bat" "
            4⤵
              PID:4564
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:408
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2200
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4080
                    • 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:3876
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 2220
                  4⤵
                  • Program crash
                  PID:3852
            • C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe
              "C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4124
            • 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:4592
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3984 -ip 3984
            1⤵
              PID:3232
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:2424
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:4660
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:2044
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 520
                        3⤵
                        • Program crash
                        PID:4292
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:5104
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        2⤵
                          PID:4272
                        • 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:1288
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4660 -ip 4660
                        1⤵
                          PID:4996
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2272 -ip 2272
                          1⤵
                            PID:4360
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:432
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:4736

                              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\9kfq0615SnBy.bat

                                Filesize

                                208B

                                MD5

                                4fea74b331381778c8cac1729a8828d4

                                SHA1

                                a740ad1a1ef00e7bd394d5aed845b6d11411d4b2

                                SHA256

                                d4b2106d93599687b953bd6261cec4071b3bf8582bda5e1409636915fd431c2e

                                SHA512

                                f4a259c1f8e6e79f07db904f1e0420fc69bffe050aacfe8d7ffa1b8647cb6e48fe2d3f1297c238575a8778ecac46befc32366d8373fcf42435e9040b2245e0f5

                              • 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\08-15-2024

                                Filesize

                                224B

                                MD5

                                0e6704b94b8bcfa4da1c84df1456d0b0

                                SHA1

                                93ae868da9ae2e59a1aa83642c6503b5e30d7ec4

                                SHA256

                                883e28e5ee2203793f72062526c9ef9da5df4a9e23f8ea3425dad08136dcc8de

                                SHA512

                                ee6fb0b174a5dcf22c605ebe148fa4eff098f12927d626886b7d536922852bd05f25470791b265bfd7b2394c1b38fb327300f40f386bb446d4e380b794c12f72

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

                                Filesize

                                2.0MB

                                MD5

                                815d9966e93481ed8a2b0af5890eb9dc

                                SHA1

                                fd65cecccdf90577e01a6dc05e9367c66587dbaf

                                SHA256

                                b91fbed553453009b3bd4fb00fd36e5702bb4dc3b683b32c7561c2d33d9e01d8

                                SHA512

                                5f599f6a967dac5f47c8a748c0e475531f7d8de8f826798ba1a8ce507f91775f16b8d938f8faa8b51021ed1e4bf6cd7ac7a27a207e9eee3bf73150a432e30ae3

                              • memory/2272-45-0x0000000006580000-0x000000000658A000-memory.dmp

                                Filesize

                                40KB

                              • memory/3632-34-0x0000000005150000-0x00000000051E2000-memory.dmp

                                Filesize

                                584KB

                              • memory/3632-33-0x0000000005700000-0x0000000005CA4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/3632-35-0x00000000050C0000-0x0000000005126000-memory.dmp

                                Filesize

                                408KB

                              • memory/3632-36-0x0000000005DD0000-0x0000000005DE2000-memory.dmp

                                Filesize

                                72KB

                              • memory/3632-37-0x0000000006310000-0x000000000634C000-memory.dmp

                                Filesize

                                240KB

                              • memory/3632-30-0x0000000000770000-0x00000000007CE000-memory.dmp

                                Filesize

                                376KB

                              • memory/3632-20-0x000000007309E000-0x000000007309F000-memory.dmp

                                Filesize

                                4KB

                              • memory/3940-19-0x0000000004120000-0x0000000004121000-memory.dmp

                                Filesize

                                4KB

                              • memory/4124-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/4124-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB