Analysis

  • max time kernel
    5s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 13:14

General

  • Target

    a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe

  • Size

    2.0MB

  • MD5

    90a584019ecca4da43b46d7bca7745ab

  • SHA1

    eddc7d3d8871e48f88462dc069175fb962ebfaca

  • SHA256

    a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b

  • SHA512

    5c8755b0e27841ac71b28de8b0027cb8f3a08112c16a50cbdb962a32439f4b284ea44ec8c4478b4f93fe355891fe0a9aafcfa3f1366c314eea8a469d7c738359

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYB:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YD

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\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe
    "C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.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:1292
    • 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:1032
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1032 -s 548
          3⤵
          • Program crash
          PID:2224
      • 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:4864
        • 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:4368
        • 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:4504
          • 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:4392
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BQohbx7A2syt.bat" "
            4⤵
              PID:956
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1328
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1228
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:464
                    • 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:4500
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\X3Hyjg7ewmp6.bat" "
                      6⤵
                        PID:4548
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2404
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1436
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4288
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 464 -s 1968
                            6⤵
                            • Program crash
                            PID:4436
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 2252
                        4⤵
                        • Program crash
                        PID:1580
                  • C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe
                    "C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4596
                  • 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:1724
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1032 -ip 1032
                  1⤵
                    PID:4308
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2480
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:3688
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:1396
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 520
                              3⤵
                              • Program crash
                              PID:2772
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3628
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2392
                              • 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:5064
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3688 -ip 3688
                              1⤵
                                PID:3664
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4504 -ip 4504
                                1⤵
                                  PID:2872
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 464 -ip 464
                                  1⤵
                                    PID:2560
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3624
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1008

                                      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\BQohbx7A2syt.bat

                                        Filesize

                                        208B

                                        MD5

                                        f74e44768c104c3c760c34c7264a3105

                                        SHA1

                                        240ccffdfcc8df0b2ebc0e46127769ec0e17ad09

                                        SHA256

                                        d09e519b8d5b4f82ae3d977616950dfe2d1fe858824218a0be1f18e2e10b1f42

                                        SHA512

                                        3e61865690f5adf06cbb576a564d3bc177bdd5958fb67f7eb37cd1a410400d853416aa970bbf8e29181c0d0fc9a6341a18563c7d25bbfc749befb7a71db9d8a5

                                      • C:\Users\Admin\AppData\Local\Temp\X3Hyjg7ewmp6.bat

                                        Filesize

                                        208B

                                        MD5

                                        740bc32e32505eccd8f978ad44b78460

                                        SHA1

                                        2999ce80705f66c41036277a2d0337995c863cb0

                                        SHA256

                                        bc91f1dce2280b62fb00825f464a519cb168915151a3904c717a5654dae776fb

                                        SHA512

                                        b1d193f9a1b91a54cb3ac61e1ead953339982a0593a789b4ca7e8e31360ae3e7a200a1acea22a7df18aa3054f463fdf9808798abf4afb0366c931b7255e83f51

                                      • 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\11-26-2024

                                        Filesize

                                        224B

                                        MD5

                                        44668e8238a9cb26d8801ebfd1b80d84

                                        SHA1

                                        f11242af1e10bf0cb81311571300f3192b4bca1e

                                        SHA256

                                        38db59fa899f89cae0113b872a2c4a7f1e0e83c6927463ae2913f29bb25b541c

                                        SHA512

                                        0dd3908d777aaf40db034daf6f0d328f5dc4f49695838e7e6252e6de78e80a375cefa5c0ee10adfacfa1e9ec026a96a34ef524207d89aa2409fb595f17d73398

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        ed3def848918b816eb02747971443e5d

                                        SHA1

                                        4210fd27cb4f1c607eb1ec89d7405a26d0fd2709

                                        SHA256

                                        49eaea70a7836a5340fa92e14d8668f4157fd404491b80494e190887e9b63602

                                        SHA512

                                        9de652957f0f193f9b3060ce2847d436babb8b7c097f558c42c3572671fba449230616e9b87fb7e7732b5934bf0e75e268e3e1549864f731de8a77985dd9fe4b

                                      • memory/1292-19-0x0000000004580000-0x0000000004581000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4504-45-0x00000000065F0000-0x00000000065FA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4596-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4596-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4864-36-0x0000000005DB0000-0x0000000005DC2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4864-37-0x0000000006AA0000-0x0000000006ADC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4864-35-0x0000000005920000-0x0000000005986000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4864-34-0x0000000005880000-0x0000000005912000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4864-33-0x0000000005E30000-0x00000000063D4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4864-30-0x0000000000F20000-0x0000000000F7E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4864-29-0x000000007301E000-0x000000007301F000-memory.dmp

                                        Filesize

                                        4KB