Analysis

  • max time kernel
    4s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2024 15:23

General

  • Target

    f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe

  • Size

    2.0MB

  • MD5

    b7f1de7e2c05646925ec2034aade1560

  • SHA1

    207cc8a93d6300ebe4ec3e644f40efb9dce29f76

  • SHA256

    f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6

  • SHA512

    80d3f672ad0d68db8bd712a132a1f9c3026012345ead099ec65ec58ab07b5746456ae315803d2bd169d419af30b9e42d1ebd770e1120f32e95a601e733a1165f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYg:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yy

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 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\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe
    "C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.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:1920
    • 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:4232
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4128
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 548
          3⤵
          • Program crash
          PID:1512
      • 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:5048
        • 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:4700
        • 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:1656
          • 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:1284
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EfZSYuIb4Dsr.bat" "
            4⤵
              PID:1872
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1456
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2188
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1940
                    • 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:4496
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 1648
                      6⤵
                      • Program crash
                      PID:1128
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1968
                  4⤵
                  • Program crash
                  PID:2732
            • C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe
              "C:\Users\Admin\AppData\Local\Temp\f6160644852c1d8ba584d5a2da6749b905c9f37d72a0d239f76c00eaa40f48f6N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4580
            • 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:2976
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4232 -ip 4232
            1⤵
              PID:3464
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1656 -ip 1656
              1⤵
                PID:3416
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1532
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:116
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:1676
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 520
                          3⤵
                          • Program crash
                          PID:4520
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4904
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:1136
                          • 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:3568
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 116 -ip 116
                          1⤵
                            PID:2596
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1940 -ip 1940
                            1⤵
                              PID:4720
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:4912
                                • C:\Windows\explorer.exe
                                  explorer.exe /LOADSAVEDWINDOWS
                                  2⤵
                                    PID:1736
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:1192
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4248
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2280

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      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\EfZSYuIb4Dsr.bat

                                        Filesize

                                        208B

                                        MD5

                                        78a2d5eca4ae41685a6b9c842782cd6b

                                        SHA1

                                        3f100983c81a54661793afb11abe7ba9f3f745d3

                                        SHA256

                                        08a9bb92790802780f1e2de748a0e91b20c3587761bd061f79c2f293752d90aa

                                        SHA512

                                        326db13f8da2886f69f361b883c61e670dfe84b219cac64131eb90cabb951047afa222f7875398dc2151c8f5847b11d497dc6669b938008c7c46a5635ec1bd0e

                                      • 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\10-12-2024

                                        Filesize

                                        224B

                                        MD5

                                        67539ed67e098dd801275cef5beada74

                                        SHA1

                                        e89404f0ae435c82fb4a11ea3522fae5f1b1a391

                                        SHA256

                                        65d830856890e2e2f58a571f28e04aa71638919778fa6c712ec506bb299d651b

                                        SHA512

                                        ecfa7d9fa15748fbfb8945a87f33e876113a66d6ee49c35c3cc7f45969ee978ad4e996e852408830bac99031bd34535a2904b358f73971835760aa5900b53854

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        bd72a946ba46e77e987d799b3240b340

                                        SHA1

                                        20644cc4f5e13f6bad50df3a30dd28cde46d7918

                                        SHA256

                                        40c5575f3a4d9fc4f52c894954df52b67df5bfd851679b3d88db5f8f0e901771

                                        SHA512

                                        834d879c69babc9da5bb4a7b034b92669064d8cca702fabbdd60006fe4ae7f3a4d8a0ca974f707369974cfa8117bfdaa07c00ea8a0e426a2aad83bd352cdf63d

                                      • memory/1656-45-0x00000000065F0000-0x00000000065FA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/1920-19-0x0000000000C10000-0x0000000000C11000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4580-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4580-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/5048-35-0x00000000059A0000-0x0000000005A06000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/5048-36-0x0000000006680000-0x0000000006692000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/5048-37-0x0000000006BC0000-0x0000000006BFC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/5048-34-0x0000000005900000-0x0000000005992000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/5048-33-0x0000000005DB0000-0x0000000006354000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/5048-32-0x0000000000F50000-0x0000000000FAE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/5048-29-0x000000007392E000-0x000000007392F000-memory.dmp

                                        Filesize

                                        4KB