Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 04:50

General

  • Target

    5d58e042651eb0a9fb24269e7163cf10N.exe

  • Size

    2.0MB

  • MD5

    5d58e042651eb0a9fb24269e7163cf10

  • SHA1

    ac6ba4eda77ac4cddcb90f0264881cc790e6aee8

  • SHA256

    e53e417bc5684e06ce7329649a4c7c74debfbc6dae726aeea3f9db684bc7d9f7

  • SHA512

    81b719b0de31f4ba1cdfb2829f0158c4e41b4c34d2a9578a29743904260d55c49921a7038e9d8d8e50fdf27a03c20ba08e64581d0215335b8d842281ffb2fa57

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yl

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 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\5d58e042651eb0a9fb24269e7163cf10N.exe
    "C:\Users\Admin\AppData\Local\Temp\5d58e042651eb0a9fb24269e7163cf10N.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:4368
    • 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:4736
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 540
          3⤵
          • Program crash
          PID:1560
      • 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:3520
        • 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:2992
        • 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:4540
          • 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:2136
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\e32ddvdnyX2D.bat" "
            4⤵
              PID:2792
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4464
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4436
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2656
                    • 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:4052
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9DGC7KZzb0A8.bat" "
                      6⤵
                        PID:5104
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:588
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:368
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 2244
                          6⤵
                          • Program crash
                          PID:4028
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 2276
                      4⤵
                      • Program crash
                      PID:1032
                • C:\Users\Admin\AppData\Local\Temp\5d58e042651eb0a9fb24269e7163cf10N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5d58e042651eb0a9fb24269e7163cf10N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1592
                • 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:4052
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4736 -ip 4736
                1⤵
                  PID:1016
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4540 -ip 4540
                  1⤵
                    PID:3572
                  • 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:1664
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:3208
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 520
                              3⤵
                              • Program crash
                              PID:720
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3120
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:740
                              • 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:4448
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1664 -ip 1664
                              1⤵
                                PID:4412
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 2656 -ip 2656
                                1⤵
                                  PID:2532
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:2868
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:5072
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1764

                                      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\9DGC7KZzb0A8.bat

                                        Filesize

                                        208B

                                        MD5

                                        bb184bcd1d4844a214e7294ea99f7664

                                        SHA1

                                        45ffd320bc3723e3732749eee67f5df19258fb10

                                        SHA256

                                        77ff8feb571c152ea512c3f349bde521b432170b571e1ffbb8429a740cb797b1

                                        SHA512

                                        8592bdf875335bf57c5d379985977403cd52dcffa2dac3472e4a7589aef7a6ceca2547c12d3e67a0f484524ad4c003c340650ac05454411c7a43a7f9929cf98b

                                      • C:\Users\Admin\AppData\Local\Temp\e32ddvdnyX2D.bat

                                        Filesize

                                        208B

                                        MD5

                                        8ecc9199a479039529f325e4ad677900

                                        SHA1

                                        a95b2a618828e9d0bcd3fdfe9e0bf8843f576dbe

                                        SHA256

                                        f1ef37aad79fa19ad0f16771d37fb8d62cb49ddcd2bec3f1928ccb4bc85fdf4a

                                        SHA512

                                        65cde1efc10b1aa9f7a92033ddf00e2d52725aa3c0a8648ab4731d760713be42b1c9dff4a6b56a8d7a2a44cf41454fc543f733a1a9b1596e2db15b1adf5100ac

                                      • 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\08-13-2024

                                        Filesize

                                        224B

                                        MD5

                                        e03fb32250333c710bd325c0d70ef5d5

                                        SHA1

                                        74b5f7f9c6ac8df735a9d17f2bf50e7329230386

                                        SHA256

                                        5981e963a9079b7c3d09bab04f62fddf6da5f5264e76b0ed77baa49455edadc7

                                        SHA512

                                        485114ae83bba7a598e454d5631b644b6889deddf98185234c885c741d8b2f4987a5173a98972a8881b486276d943e37d38e90d9df5924b7fc19af643c47dbaf

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        b90861b2d1a83e3cf5298b2bdc861346

                                        SHA1

                                        c24f2adce24edb36d9d4334e4bfff6d00c317d39

                                        SHA256

                                        fa85e8ecc96293d09e875e83f62e59886d7b4779fa74135642c7e022a542df6e

                                        SHA512

                                        47e41abb25101d24298dc92a300e3ef3fd95aa8c659a7670d3ebd4da3859d51eaed3471ee4ea6caba6a1093ce0434397d0190f5ab3e416668cf7be13a1ce1a34

                                      • memory/740-81-0x0000000000380000-0x00000000003A0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/740-75-0x0000000000380000-0x00000000003A0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1592-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1592-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3520-29-0x0000000072DFE000-0x0000000072DFF000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/3520-37-0x0000000006600000-0x000000000663C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/3520-36-0x00000000060C0000-0x00000000060D2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/3520-35-0x00000000053A0000-0x0000000005406000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/3520-34-0x0000000005440000-0x00000000054D2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/3520-33-0x00000000059F0000-0x0000000005F94000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/3520-32-0x0000000000950000-0x00000000009AE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4368-46-0x00000000029B0000-0x00000000029B1000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4368-28-0x00000000029B0000-0x00000000029B1000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4540-45-0x0000000006500000-0x000000000650A000-memory.dmp

                                        Filesize

                                        40KB