Analysis

  • max time kernel
    5s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 22:32

General

  • Target

    72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf.exe

  • Size

    2.0MB

  • MD5

    75e1f05ca19fd1b57611c8230c0fc280

  • SHA1

    a789442e3a6fac25741bf0f798ba9a87e3f42aef

  • SHA256

    72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf

  • SHA512

    9d7b2cf4ce68f1244aaa89d4742d8a60e1b6a535af8305cbae87e543799b9d480eaaf78ae206830e896f04870aa5feea254b80734988c13fe8a7d149dcaa9587

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYS:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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 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\72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf.exe
    "C:\Users\Admin\AppData\Local\Temp\72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf.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:1596
    • 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:1820
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 548
          3⤵
          • Program crash
          PID:4932
      • 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:2028
        • 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:4292
        • 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:3912
          • 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:1952
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tSr4f6EleZXQ.bat" "
            4⤵
              PID:3000
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:804
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:324
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3532
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 1988
                  4⤵
                  • Program crash
                  PID:1304
            • C:\Users\Admin\AppData\Local\Temp\72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf.exe
              "C:\Users\Admin\AppData\Local\Temp\72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:420
            • 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:4540
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1820 -ip 1820
            1⤵
              PID:5108
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3912 -ip 3912
              1⤵
                PID:4904
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:5112
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:3752
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:208
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 520
                          3⤵
                          • Program crash
                          PID:2416
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4424
                          • 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:4076
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:3440
                              • 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:3276
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:3092
                            • 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:3168
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3752 -ip 3752
                            1⤵
                              PID:1900
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:1428
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:724

                                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\tSr4f6EleZXQ.bat

                                  Filesize

                                  208B

                                  MD5

                                  994d3757126d5e4d4709312ba1321b84

                                  SHA1

                                  27f724c4b5d4a5bd24d03714c720c161b0c5de93

                                  SHA256

                                  2881cab0bc523305bdbc35abbf9b3a95c94f01eaf0a287d69a10c02ee48cfaa6

                                  SHA512

                                  63c546fd9c38e78e464ff832f9f58559b0da84a2661b5d2bcb230c650544d1f7c3983bd1579013cf7f1a71d0d19f29026a23513badc9a3c40e0ef87f8986882b

                                • 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\08-11-2024

                                  Filesize

                                  224B

                                  MD5

                                  3e8eaac49a33f133cf6e3d3461fa614a

                                  SHA1

                                  7cb4029316723070fe5df28df2613048a23911a9

                                  SHA256

                                  9d1c0502879c6368f2b5e905f0a4cdab25aa98720261fa1056070e78f3236454

                                  SHA512

                                  05a3a016b6e6f9fc80ddc155b1dc1aff752d9d5afc32f3ad28a31b3c1a4f68eedc9ae6e04c53a0f3fcd9af4ea7776d788787fae3ab4d5a35c770d1159a23f575

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  db578f15f56a6c280f4538f9bbf85679

                                  SHA1

                                  a4536fe8cd9b59eb64db6564c3832af7dcd32e14

                                  SHA256

                                  314b981f08a0b75de48246ac8824ca4bf66b0190904b36efeeca362086010133

                                  SHA512

                                  f77b95d210e0e79a8f27f893872bef1f8b506ba7deffd638aef3713f05a6e1f7aa69e79430356becafa746230fde648a02ce52caa5857ccd9b044321f3e66629

                                • memory/420-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/420-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1596-26-0x0000000003A60000-0x0000000003A61000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2028-34-0x00000000052E0000-0x0000000005372000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2028-36-0x0000000006060000-0x0000000006072000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/2028-37-0x00000000065A0000-0x00000000065DC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/2028-35-0x0000000005240000-0x00000000052A6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2028-33-0x0000000005770000-0x0000000005D14000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2028-30-0x0000000000910000-0x000000000096E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/2028-29-0x000000007383E000-0x000000007383F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3912-45-0x0000000006600000-0x000000000660A000-memory.dmp

                                  Filesize

                                  40KB