Analysis

  • max time kernel
    6s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-06-2024 02:31

General

  • Target

    c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0.exe

  • Size

    2.0MB

  • MD5

    8548db03f99bb1f196f630a90177cc60

  • SHA1

    8e098e4196ae0141ba331f297fb226c8cae19aea

  • SHA256

    c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0

  • SHA512

    8568953517932967da12c84d56055d688f4ce80dd3c8ecd2c2c0d72cd26be4926823e007c33ad5afa89ed6d449a6619bbeccfd934d0fc526d146b4232195c263

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYA:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ye

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 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 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 2 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 5 IoCs
  • Creates scheduled task(s) 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 2 IoCs
  • 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\c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0.exe
    "C:\Users\Admin\AppData\Local\Temp\c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2940
    • 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:3312
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 548
          3⤵
          • Program crash
          PID:4472
      • 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:1592
        • 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⤵
          • Creates scheduled task(s)
          PID:2944
        • 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:1388
          • 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⤵
            • Creates scheduled task(s)
            PID:2736
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qS9tLayJ8DgB.bat" "
            4⤵
              PID:660
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2904
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:4532
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2224
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:5040
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JfKDvS5xgmnm.bat" "
                      6⤵
                        PID:4308
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2088
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:632
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3208
                              • 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
                                8⤵
                                • Creates scheduled task(s)
                                PID:996
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3208 -s 1752
                                8⤵
                                • Program crash
                                PID:400
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 2216
                            6⤵
                            • Program crash
                            PID:4936
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 2256
                        4⤵
                        • Program crash
                        PID:672
                  • C:\Users\Admin\AppData\Local\Temp\c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0.exe
                    "C:\Users\Admin\AppData\Local\Temp\c66af7563a21e575f94846a343bcc2180555177b238f424ce72cd4a03c81bcb0.exe"
                    2⤵
                      PID:600
                    • 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⤵
                      • Quasar RAT
                      • Creates scheduled task(s)
                      PID:5036
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3312 -ip 3312
                    1⤵
                      PID:4468
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3564
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:64
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2296
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 520
                                3⤵
                                • Program crash
                                PID:4160
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4556
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3736
                                • 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⤵
                                  • Creates scheduled task(s)
                                  PID:1168
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 64 -ip 64
                                1⤵
                                  PID:5048
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1388 -ip 1388
                                  1⤵
                                    PID:2196
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2224 -ip 2224
                                    1⤵
                                      PID:4408

                                    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\JfKDvS5xgmnm.bat

                                      Filesize

                                      208B

                                      MD5

                                      9cd54ee80c2dfac2aa5411071bdf92af

                                      SHA1

                                      d8cf63656beb721fa27b697259db001e1c162c38

                                      SHA256

                                      84faba6e54fba71b4dd8d91b7865c746a36f73f26d6b6a15c1fba63f50c41798

                                      SHA512

                                      a3f0cb30a57d44dacf5bb701951a3bb703840f28a4b9c47ec48a08f3f62eede27e1c5d5a8e42ccabdca4a77c182650f8a06c5fe247838ad096f0d24115d882dc

                                    • C:\Users\Admin\AppData\Local\Temp\qS9tLayJ8DgB.bat

                                      Filesize

                                      208B

                                      MD5

                                      8171d95acd56ca20ee2596d1edbeb3e0

                                      SHA1

                                      acfd72b895500fc7b0a7b2ceb728480649626ea6

                                      SHA256

                                      42b3bf7e8618467d304e8294b5b2d133502fb2de30df9ea5df8e7931ec42ac6b

                                      SHA512

                                      978d4028ec297232c405b71dc0dfdbafde502acda322fa378f2df7fcedde19c741a6f1315b7113304d1d99e5f4700116cd02a20e707129a7ba817f93d4686759

                                    • 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\06-02-2024

                                      Filesize

                                      224B

                                      MD5

                                      6845794e5e6c76d99005c9a57bd31ed3

                                      SHA1

                                      809c8a080e81b3c8263474fc4edfbc8294dd3812

                                      SHA256

                                      610ab996248650d1af9a6afa1a7d10a66258c19d38ecdcdd5239a6dd25f9f7a5

                                      SHA512

                                      4563a2c3cf39db39bab7acb3c453c36c9f67066624e892257fcad3d891cf8a013891fbc41c5e67f204620aa32ff9cb469e9fb9535bd86f91ab825aa75429c9e2

                                    • C:\Users\Admin\AppData\Roaming\Logs\06-02-2024

                                      Filesize

                                      224B

                                      MD5

                                      d5c5f3a952bbc8744f87e7762f9b3ec8

                                      SHA1

                                      3bf473fa4a3473b50bf5d556f972e981d5beefc5

                                      SHA256

                                      c560fb3659698c0190b82961a306671ad8548b2f813dfe17bf0d5b99be0e2a7d

                                      SHA512

                                      0c5e59805103ae8054af0f5bd7b89d49f9aed4b4ac4be6ec488c969635d0f887a9b09467b39a2c5eb8820d7834fa7a5a58c84d9250f39a4440d013ce86b3345e

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      3b4c3f7077a461c8bcfc06c319ac4311

                                      SHA1

                                      fd31879d63fda5bd157aa5565cfcdd064f8f9a6b

                                      SHA256

                                      5fac24a59b3c0d045177d747f481a3799acb1977288da5a1f8cacd4383859e9b

                                      SHA512

                                      f35022abe23e1e6e61dd582cd786c35be73ae1b55aa515b46db8eced335bdcdeddfd1dc1e4006356cda9c5172bf1df734c61c8cc878e6dbe2a013a8a4b8c6777

                                    • memory/600-21-0x0000000001410000-0x0000000001430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/600-29-0x0000000001410000-0x0000000001430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1388-45-0x0000000006D80000-0x0000000006D8A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/1592-36-0x00000000052A0000-0x00000000052B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1592-37-0x0000000006340000-0x000000000637C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1592-35-0x00000000050E0000-0x0000000005146000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1592-34-0x0000000005180000-0x0000000005212000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1592-31-0x0000000005890000-0x0000000005E34000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1592-30-0x0000000000790000-0x00000000007EE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/1592-19-0x0000000072A5E000-0x0000000072A5F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2940-20-0x0000000003780000-0x0000000003781000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3736-67-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3736-73-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB