Analysis

  • max time kernel
    4s
  • max time network
    67s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-07-2024 12:44

General

  • Target

    c0e141946d1767a29de73428a80a16d0N.exe

  • Size

    2.0MB

  • MD5

    c0e141946d1767a29de73428a80a16d0

  • SHA1

    0f4b0ff61ce688f7d47ba2d1b316d11bf40e85a7

  • SHA256

    2b0c9901e5c28f7d50a09068533ce627f8e3d11c5e7a1d80ea5141a7f7578aed

  • SHA512

    7f0b07261a07d88d737dcf33e4ea25c48041b656ead1ce62626b5c1f208b9f2ae552ae11fb86a3467b567c4a8fc1888776d7773a27995c1eee893eeeb41f6103

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YX

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\c0e141946d1767a29de73428a80a16d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c0e141946d1767a29de73428a80a16d0N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4612
    • 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:3780
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1580
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 552
          3⤵
          • Program crash
          PID:3764
      • 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:1912
        • 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:2504
        • 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:804
          • 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:4424
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\eEM3B5OFPV9e.bat" "
            4⤵
              PID:2060
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3408
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:916
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2716
                    • 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:5108
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\iBSetZN0rJuH.bat" "
                      6⤵
                        PID:1088
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3376
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:3172
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 2244
                          6⤵
                          • Program crash
                          PID:1800
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 2268
                      4⤵
                      • Program crash
                      PID:4584
                • C:\Users\Admin\AppData\Local\Temp\c0e141946d1767a29de73428a80a16d0N.exe
                  "C:\Users\Admin\AppData\Local\Temp\c0e141946d1767a29de73428a80a16d0N.exe"
                  2⤵
                    PID:3396
                  • 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:3120
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3780 -ip 3780
                  1⤵
                    PID:4708
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 804 -ip 804
                    1⤵
                      PID:3272
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3836
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:2744
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2712
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 548
                                3⤵
                                • Program crash
                                PID:4944
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2912
                                • 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:2240
                                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                  3⤵
                                    PID:4432
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:4916
                                  • 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:2232
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2744 -ip 2744
                                  1⤵
                                    PID:2920
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 2716 -ip 2716
                                    1⤵
                                      PID:1852

                                    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\eEM3B5OFPV9e.bat

                                      Filesize

                                      208B

                                      MD5

                                      2a17150e46dd726e58701de6c163e42c

                                      SHA1

                                      84c64b777532e8e85086ae5703b450e5ea9010a0

                                      SHA256

                                      9b82f42d34c683ae43fe465b8788c31ef079b1618e358ab9cc8519e0d2dcaeea

                                      SHA512

                                      caa4fc2dd90a0bd2b67790fc47ba42cb32d4f40fa85709b487f5fff65a8d92f813f029c51363f4d9a9015d51bbf3150bbc0914c11dd1ed273e901bcfde819095

                                    • C:\Users\Admin\AppData\Local\Temp\iBSetZN0rJuH.bat

                                      Filesize

                                      208B

                                      MD5

                                      75e1ab587acd07689658799e14b36e59

                                      SHA1

                                      d1d63f7ca0686fddcd3d6095bc1852017ebad630

                                      SHA256

                                      465a37672aa41e179484790ce021aaaebc4cf62b56504db7e156256340e62dc7

                                      SHA512

                                      dd99289d739ee6d9ab02b1c2c1131eacd1204424448addb266ef60d02419acce2e9a22aac564f869bae0324879f40a98c8b414a480b603a1fbac8052b5c41446

                                    • 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\07-16-2024

                                      Filesize

                                      224B

                                      MD5

                                      6e3612b8b53c4272e267f1c65eb7c485

                                      SHA1

                                      e809598ce46dbfe801570363f21d69256f46c321

                                      SHA256

                                      a257b0b871ff956cd81e8f94f88f133c70c447de164b715cbea75f7fe769895a

                                      SHA512

                                      321f1f7064da4e20d2ea3062397d5c3eca6b4661a0af68fad1d5717682611c3a0fb7df8a6a79ef7f7d23a69aaf94d52d85665857cea84eab816da92c1fb04317

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      77a2ded28924f00e8f62f8f971744b10

                                      SHA1

                                      3f918c99561031a6a85596c3ef37d85aef049c8d

                                      SHA256

                                      0bf59912354ef43dc905b01dca32da31e1099f68bf4fd09ce4f181b1d0df2521

                                      SHA512

                                      1fdaf64d06d358a25f323b1bfd1761ed4cd5f35446aa885b19ff6a790dc0a9237eea43a70d6672fae29404bc53e381ba9d5610110398426f660d23f37d425026

                                    • memory/804-44-0x00000000067F0000-0x00000000067FA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/1912-34-0x0000000004CF0000-0x0000000004D56000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1912-35-0x0000000005910000-0x0000000005922000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1912-36-0x0000000005E50000-0x0000000005E8C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1912-33-0x0000000004C50000-0x0000000004CE2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1912-32-0x0000000005200000-0x00000000057A4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1912-29-0x00000000002E0000-0x000000000033E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3396-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3396-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4612-19-0x00000000035E0000-0x00000000035E1000-memory.dmp

                                      Filesize

                                      4KB