Analysis

  • max time kernel
    5s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 18:34

General

  • Target

    0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe

  • Size

    2.0MB

  • MD5

    da6b1f75df9655f1986f5da7ebdbf354

  • SHA1

    111192c1e1192a91ec09c58f2dbbbee388019e4e

  • SHA256

    0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774

  • SHA512

    4957ae85f7801c8fa0d1f153de7d9ef7c67057f1a144937e43e0b659a66fbda4e49514e8ff73eb1e6b343bbf9dec2393abf795a2a4b47117252e7fb5053ea8cf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yk

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\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe
    "C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.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:4852
    • 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:448
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 556
          3⤵
          • Program crash
          PID:1032
      • 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:1364
        • 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:1960
        • 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:4444
          • 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:740
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\73L7isTxc737.bat" "
            4⤵
              PID:5072
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:808
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:376
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2556
                    • 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:3612
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 2144
                  4⤵
                  • Program crash
                  PID:3828
            • C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe
              "C:\Users\Admin\AppData\Local\Temp\0c2f10c850a70696aef8d1b84590a8d95d8f635537b14851e01aff5f041eb774.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1420
            • 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:5092
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 448 -ip 448
            1⤵
              PID:2248
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:3832
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:392
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:3532
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 520
                        3⤵
                        • Program crash
                        PID:3420
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:4544
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        2⤵
                          PID:1848
                        • 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:1488
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 392 -ip 392
                        1⤵
                          PID:4120
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4444 -ip 4444
                          1⤵
                            PID:952
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2444

                            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\73L7isTxc737.bat

                              Filesize

                              208B

                              MD5

                              5168836d8457a547ae979451d0af08de

                              SHA1

                              8bc3d89a71b05997025aea9a14fefb656f9783f6

                              SHA256

                              17278271f599695fd7a194dce235bc29c8a230aac93fdf89cb1db45c17fa5627

                              SHA512

                              3a4f377470a04ff31d4e0a02aefc3c3b9eae1c01f4e792c871dfd306e97f074d0f705e17d0bf2bb073b4e862a1bec3bbaf592df81f6256cb6f0716b05b382e7f

                            • 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\08-18-2024

                              Filesize

                              224B

                              MD5

                              e30f6e10be1b6dae60d0ba44c8f5e948

                              SHA1

                              b671b0e7bc94d9907fd869ad632ab148325a60a0

                              SHA256

                              903f0e3e699892fa56206de421975550fcaf684ee9ac9c7fa4c3bbb611cd76a1

                              SHA512

                              0ab320d4b0e8cf334e0890eddff56fcfea21421e55e8d712ef84e94665615c7bf2786288b9934759cf5178ed646b67fee2bacb7591fdc9acf1ea684be6ce67b9

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

                              Filesize

                              2.0MB

                              MD5

                              372223ec03ac240e3fccd2c966e5df1a

                              SHA1

                              28de32e9a67844d4580b21f114d38ef4dde28214

                              SHA256

                              7ab89bf22ba6d028c55e61062064ffa7fcca6ddacdea34408a1d8c918ec0c01b

                              SHA512

                              12f7031ca996bf848b361d74ac9f6710d3a1344dfa50b133fe7419476825affeb3ea2d9392f5ccb7dcc5a218f638dd6371b05a98fc87e22ee279bcacf909b15d

                            • memory/1364-30-0x0000000000590000-0x00000000005EE000-memory.dmp

                              Filesize

                              376KB

                            • memory/1364-33-0x0000000005420000-0x00000000059C4000-memory.dmp

                              Filesize

                              5.6MB

                            • memory/1364-34-0x0000000004F80000-0x0000000005012000-memory.dmp

                              Filesize

                              584KB

                            • memory/1364-35-0x0000000004EE0000-0x0000000004F46000-memory.dmp

                              Filesize

                              408KB

                            • memory/1364-36-0x0000000005BD0000-0x0000000005BE2000-memory.dmp

                              Filesize

                              72KB

                            • memory/1364-37-0x0000000006110000-0x000000000614C000-memory.dmp

                              Filesize

                              240KB

                            • memory/1364-29-0x00000000735BE000-0x00000000735BF000-memory.dmp

                              Filesize

                              4KB

                            • memory/1420-28-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB

                            • memory/1420-20-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB

                            • memory/4444-45-0x0000000006C90000-0x0000000006C9A000-memory.dmp

                              Filesize

                              40KB

                            • memory/4852-19-0x00000000042C0000-0x00000000042C1000-memory.dmp

                              Filesize

                              4KB