Analysis

  • max time kernel
    3s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe
    "C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2792
    • 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
      PID:2672
      • 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⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1236
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2928
          • 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⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2880
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\xULXGLkIsr4a.bat" "
            4⤵
              PID:1040
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:916
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1304
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2464
                    • 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:992
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1540
                  4⤵
                  • Program crash
                  PID:324
            • C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe
              "C:\Users\Admin\AppData\Local\Temp\a33a7b143bdb641237978065c79f9dea9b5b849bf1278ef9df1918f23a278b4b.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2824
            • 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:2752
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {480FF998-8A67-42D4-BB4E-3FAE5E7E9BEE} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
            1⤵
              PID:1916
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1088
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:264
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2144
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2512
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2560
                          • 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
                            3⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:848

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\xULXGLkIsr4a.bat

                        Filesize

                        208B

                        MD5

                        64f9e1114be4df2e6e402e39bb42467a

                        SHA1

                        0b05b481f4c67b3362add84b1928713a853a1036

                        SHA256

                        f262716abcdc25ff5815294aad7712bda6653f57931e314f3098ec8ad39c4bd1

                        SHA512

                        bb1ce577509c6bf5debeecd47001e9a20753f688541082ac09f1620ff477deea2adc0760dd433420ce5dd14d2df05b84fd143aef5bb31c7001c3eaa39d9f3070

                      • C:\Users\Admin\AppData\Roaming\Logs\11-26-2024

                        Filesize

                        224B

                        MD5

                        e9649e0ed9bb0621255d2d097224b9b1

                        SHA1

                        0b10c53325f31b143855e16a504080d1db5e5a16

                        SHA256

                        8eae91310cf1492413f5c3e5d8f6503665e56a95847cc3ef6b678436306bd165

                        SHA512

                        41eebb308f809c6a051acddee870b743531524492df5c1394eaf6fb61807c123e9fa479a25e7d4cfb25aac364faae3ffbbffd29fff7753354b4fcdb62ecc60d1

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\E3T15UTT.txt

                        Filesize

                        211B

                        MD5

                        33360f9286189d852c0273a3b3428c4e

                        SHA1

                        2a6db5e8275b131fa99c66d8da5530b35aa759b5

                        SHA256

                        76ae673087d32f512561b891f0b29bb38c3670ab97deff08f91f4188881a928c

                        SHA512

                        00a546fa4226b6f96693eb22cdfeb986f30ef7ebd0a32ac5d367648841f4da562862fae5a7cab167f946ff3a4cac1737a05383409094964a27344d1f6c3cf05c

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

                        Filesize

                        2.0MB

                        MD5

                        eaf46559ae67677b748a1769067ea4ed

                        SHA1

                        bad7b5890d5c94bb4e906eac19feac94c25addb5

                        SHA256

                        9e50a8d1a8a787c78afe0da0d7195ef17ea0daddeaf8ceb47b5d39cea3d6bc2e

                        SHA512

                        ea15c9a42b15aa4dd26e6e50509bc8a069ead299a1c44250c2b8956ffe32016ebdf27c0bf9d17d9cc66f91026e4e882a7e1ad05a9e336ed3b12b724f1f039e91

                      • \Users\Admin\AppData\Local\Temp\vnc.exe

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                      • \Users\Admin\AppData\Local\Temp\windef.exe

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/2144-99-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

                        Filesize

                        4KB

                      • memory/2464-131-0x0000000000B50000-0x0000000000BAE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2512-102-0x00000000000E0000-0x000000000013E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2560-113-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2560-106-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2560-109-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2672-54-0x0000000000D10000-0x0000000000D6E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2772-30-0x0000000000730000-0x0000000000731000-memory.dmp

                        Filesize

                        4KB

                      • memory/2792-49-0x00000000000D0000-0x000000000016C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2792-53-0x00000000000D0000-0x000000000016C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2792-48-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                        Filesize

                        4KB

                      • memory/2792-46-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2824-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2824-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2824-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2824-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2928-64-0x0000000000180000-0x00000000001DE000-memory.dmp

                        Filesize

                        376KB