Analysis

  • max time kernel
    5s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-08-2024 23:01

General

  • Target

    7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e.exe

  • Size

    2.0MB

  • MD5

    8cf9f3428ba27bdb52214624a34810a2

  • SHA1

    f00860b62b7780a3f00f91794090442e00c0b5ab

  • SHA256

    7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e

  • SHA512

    bc099ffbc2f401c7e22e345ff67d13a538379485e4f33a100e1d6ea572d48589d298a84e904a35569d13f426233e0dc9ddb0768ea393be1730a15b611154470a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYQ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y6

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 3 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\7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e.exe
    "C:\Users\Admin\AppData\Local\Temp\7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e.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:2164
    • 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:4532
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 548
          3⤵
          • Program crash
          PID:2096
      • 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:2188
        • 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:980
        • 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:5104
          • 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:2896
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\iEk42Bjv6L7r.bat" "
            4⤵
              PID:4596
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3872
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4040
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4996
                    • 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:4740
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 2268
                  4⤵
                  • Program crash
                  PID:4556
            • C:\Users\Admin\AppData\Local\Temp\7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e.exe
              "C:\Users\Admin\AppData\Local\Temp\7c10a3631fd82deea8fd9db6d1327df8c2d1eb72187f4227aed7725bb9dc635e.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4012
            • 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:2212
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4532 -ip 4532
            1⤵
              PID:4924
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5104 -ip 5104
              1⤵
                PID:952
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3908
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:924
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:4412
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 924 -s 520
                          3⤵
                          • Program crash
                          PID:3224
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:2280
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:3264
                          • 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:3964
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 924 -ip 924
                          1⤵
                            PID:3640
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:2508
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:3220

                              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\iEk42Bjv6L7r.bat

                                Filesize

                                208B

                                MD5

                                e15cff45199637a1b77366dd0bdb620e

                                SHA1

                                48e28f7c7cd6c1d37d4f37124db39bee0a6cfa22

                                SHA256

                                c86a1e06747e81b34486f1134d05aa63e561393b777d98dc5a8adcbafd2fb8ef

                                SHA512

                                8dc3a69303f1ba8871c5a5c6eed4319b42dd0edd3480daec8af544b70def455b723a5e2d485a03beded14930076cc606cbea7f5e91622d14175d9dff1717ea15

                              • 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\08-08-2024

                                Filesize

                                224B

                                MD5

                                1be074918b898b39cac70ad51fe08736

                                SHA1

                                0bf67dd3c8235ee839a0d1b30b1492c020e4839d

                                SHA256

                                b47ffd7b2a7c4451c89a4c75ace35a5fce6de2cac1a79ce6e6507b7f4df530a5

                                SHA512

                                7e3e43a1195aa0b0fb2515684f3f0167664a992ea07b10f65056cb3fb9a16caad6abca5700e1277d8a491f1e7240107929e003bb2e9cffec0e38595f295966d9

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

                                Filesize

                                2.0MB

                                MD5

                                9570fd7375acc5eb0162104be7abebd6

                                SHA1

                                34debbacb2fc40a111cb879c541a96da9f55455e

                                SHA256

                                6c234255c43039269a92968a2e68b33cd22e82fe596ef75fff38ab813e115415

                                SHA512

                                cb0c5c5a26eac034766ebb499f2aa29183d1d8dbe910383231a8cb686c1596cbe9f17b06b1fa368f0a1ff0d32703e8378c4b450eff6559e14617662cffe89243

                              • memory/2164-46-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

                                Filesize

                                4KB

                              • memory/2164-28-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

                                Filesize

                                4KB

                              • memory/2188-29-0x0000000072F8E000-0x0000000072F8F000-memory.dmp

                                Filesize

                                4KB

                              • memory/2188-35-0x0000000004DF0000-0x0000000004E56000-memory.dmp

                                Filesize

                                408KB

                              • memory/2188-36-0x0000000005360000-0x0000000005372000-memory.dmp

                                Filesize

                                72KB

                              • memory/2188-37-0x0000000005F50000-0x0000000005F8C000-memory.dmp

                                Filesize

                                240KB

                              • memory/2188-34-0x0000000004D20000-0x0000000004DB2000-memory.dmp

                                Filesize

                                584KB

                              • memory/2188-33-0x00000000053A0000-0x0000000005944000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/2188-30-0x00000000002A0000-0x00000000002FE000-memory.dmp

                                Filesize

                                376KB

                              • memory/3264-75-0x0000000000660000-0x0000000000680000-memory.dmp

                                Filesize

                                128KB

                              • memory/3264-81-0x0000000000660000-0x0000000000680000-memory.dmp

                                Filesize

                                128KB

                              • memory/4012-27-0x0000000000150000-0x0000000000170000-memory.dmp

                                Filesize

                                128KB

                              • memory/4012-19-0x0000000000150000-0x0000000000170000-memory.dmp

                                Filesize

                                128KB

                              • memory/5104-45-0x00000000067F0000-0x00000000067FA000-memory.dmp

                                Filesize

                                40KB