Analysis

  • max time kernel
    4s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2024 02:51

General

  • Target

    436b70baf0462cd490cbb244ec8598f0N.exe

  • Size

    2.0MB

  • MD5

    436b70baf0462cd490cbb244ec8598f0

  • SHA1

    c562f1d83d17ae3b8fe624c65d96a84100d57234

  • SHA256

    0c53015ff8753e7cb32e92bde264973d7b75ccd77364cf5ad475de1ed15d070c

  • SHA512

    1c280b0f3a7cc2c6ab012d9e81013b8a7be79bfed37b3b533d38d908a04f9f04e4bd9f0c341e7663fc75d5fe58a826c6b69a61a319a3a56a922bb7ab925b8868

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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
  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 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\436b70baf0462cd490cbb244ec8598f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\436b70baf0462cd490cbb244ec8598f0N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 552
          3⤵
          • Program crash
          PID:3232
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:220
        • 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:3656
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3744
          • 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:4916
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\m4ZlzGPFj1uk.bat" "
            4⤵
              PID:4276
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4572
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:4424
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1284
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3744 -s 1636
                  4⤵
                  • Program crash
                  PID:3316
            • C:\Users\Admin\AppData\Local\Temp\436b70baf0462cd490cbb244ec8598f0N.exe
              "C:\Users\Admin\AppData\Local\Temp\436b70baf0462cd490cbb244ec8598f0N.exe"
              2⤵
                PID:4908
              • 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:4948
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4784 -ip 4784
              1⤵
                PID:1496
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3744 -ip 3744
                1⤵
                  PID:2176
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:1784
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:3028
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1960
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 520
                            3⤵
                            • Program crash
                            PID:3332
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:5104
                            • 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:4036
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              3⤵
                                PID:3236
                                • 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:4552
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0WvatexupHi7.bat" "
                                  4⤵
                                    PID:4664
                                    • C:\Windows\System32\Conhost.exe
                                      \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                                      5⤵
                                        PID:4916
                                      • C:\Windows\SysWOW64\chcp.com
                                        chcp 65001
                                        5⤵
                                          PID:1592
                                        • C:\Windows\SysWOW64\PING.EXE
                                          ping -n 10 localhost
                                          5⤵
                                          • Runs ping.exe
                                          PID:3316
                                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                          5⤵
                                            PID:3744
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 2280
                                          4⤵
                                          • Program crash
                                          PID:3044
                                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                      2⤵
                                        PID:3676
                                      • 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:3976
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3028 -ip 3028
                                      1⤵
                                        PID:4152
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3236 -ip 3236
                                        1⤵
                                          PID:228
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:2364
                                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                            1⤵
                                              PID:1492

                                            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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                              Filesize

                                              701B

                                              MD5

                                              5de8527438c860bfa3140dc420a03e52

                                              SHA1

                                              235af682986b3292f20d8d71a8671353f5d6e16d

                                              SHA256

                                              d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                              SHA512

                                              77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                            • C:\Users\Admin\AppData\Local\Temp\0WvatexupHi7.bat

                                              Filesize

                                              208B

                                              MD5

                                              41b59ac2bebd7aab84361f9e38e42adf

                                              SHA1

                                              5305e7962d197532be0814e3d895070dd7f5e8c1

                                              SHA256

                                              4ef1cfacec60b73477bbbf8950d51dfb538b7da81adc534f21d99530ce9df799

                                              SHA512

                                              53df3afd1ad84531ed1fa5b261d45fae6233e6f1a0e9ae36dcff2b8294301d87e34d72601b205506cfffed93ceef6ecb1d222bf9715dc76635c0eb8ca400496b

                                            • C:\Users\Admin\AppData\Local\Temp\m4ZlzGPFj1uk.bat

                                              Filesize

                                              208B

                                              MD5

                                              80413d113cc145f961a4616073b9eb02

                                              SHA1

                                              d1eef11c784b306b9906a02a48c4d701c512cdf2

                                              SHA256

                                              76d52141087de8e8c878fce75940a1d9930705c258c472d1c50b9b2b5289c8aa

                                              SHA512

                                              d67208a047345a3148c362af9b829a7a9b2f4d6179088581dba4834c1fa6236feb51d7d73b1d662dba0b7dbee6923afa8e78854c9d102b505d02b1f07a06a9c3

                                            • 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\07-19-2024

                                              Filesize

                                              224B

                                              MD5

                                              c803a47f537e47f37b3b00c5873fa473

                                              SHA1

                                              ef03cd478e7d85d09456acec35e1a1ad14fd6e92

                                              SHA256

                                              33606b473a18f65d84a616040d35fe2654744bb064b84166e3179af69a787dff

                                              SHA512

                                              c734369ea92485e840ed46d2d9fe1c634ad0db359562fc6344487442996df84bd85b8e97f0ff26fe39870974b4ff46e3533853cafb798758c742d33d722b524d

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

                                              Filesize

                                              2.0MB

                                              MD5

                                              46eff27f983cd07598c7c9f253bbf098

                                              SHA1

                                              b2541e9a86a2076c8cd4a25efe93ab4b153ee332

                                              SHA256

                                              4f726cf65067c902bd480c4ef7d3126140ad5e56dec7904c5590bd826d94d702

                                              SHA512

                                              6dc74768155d00e2e233e6989dd872c7470e4515f25418ed15bc484296620406faed79ccd2db7e0ee65b693dffd3071c61a81051d4ad91a37dee1c250013190e

                                            • memory/220-31-0x0000000000990000-0x00000000009EE000-memory.dmp

                                              Filesize

                                              376KB

                                            • memory/220-35-0x0000000005FC0000-0x0000000005FD2000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/220-36-0x0000000006500000-0x000000000653C000-memory.dmp

                                              Filesize

                                              240KB

                                            • memory/220-34-0x00000000053A0000-0x0000000005406000-memory.dmp

                                              Filesize

                                              408KB

                                            • memory/220-33-0x0000000005300000-0x0000000005392000-memory.dmp

                                              Filesize

                                              584KB

                                            • memory/220-32-0x0000000005810000-0x0000000005DB4000-memory.dmp

                                              Filesize

                                              5.6MB

                                            • memory/2572-45-0x0000000003E00000-0x0000000003E01000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/2572-28-0x0000000003E00000-0x0000000003E01000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/3676-71-0x0000000000230000-0x0000000000250000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/3676-77-0x0000000000230000-0x0000000000250000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/3744-44-0x0000000006510000-0x000000000651A000-memory.dmp

                                              Filesize

                                              40KB

                                            • memory/4908-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/4908-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB