Analysis

  • max time kernel
    4s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 22:04

General

  • Target

    59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe

  • Size

    2.0MB

  • MD5

    83e32263d325642ba70bb6d7ecf9bed4

  • SHA1

    66fd8758eae62532be0ef48c25512216156d7f61

  • SHA256

    59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b

  • SHA512

    2039a75aadad530a8cb4440516d22e561cc29bd236191fcd88e3e9cb631f6722880799522fabac76d526154391b92755605794128482dcd684a03015b90d3371

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYG:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YI

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
    "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2488
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2656
    • 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
      PID:2248
      • 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:2576
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2740
          • 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:1156
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\OsptVtrpSjsE.bat" "
            4⤵
              PID:1216
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3052
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2448
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 1344
                4⤵
                • Program crash
                PID:1472
          • C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
            "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2008
          • 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:2788
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {869DCDD8-2E80-474C-87F5-84C10DC3B1CE} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
          1⤵
            PID:1932
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:1228
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:1568
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:1484
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2412
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:956
                        • 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
                          3⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:2892

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

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

                      Filesize

                      208B

                      MD5

                      4b3e3b420d933afe64b3b63f94b932e4

                      SHA1

                      8bbb21246eab64f0f6ecd5267cd6839758231a34

                      SHA256

                      268c33aec2acc75d53222f94edb99bca097b3f58ecc31f48de6fc9c665334396

                      SHA512

                      442a43c1f2b5f133cbf08bdf54ddfdf0c42366ee87a3ac04b584a0d4f790b1ee68c3e4aca447d6fb8a934ee7d19cc20e5ef7e03ba6355efc58b6ff0d1bb172ef

                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                      MD5

                      d41d8cd98f00b204e9800998ecf8427e

                      SHA1

                      da39a3ee5e6b4b0d3255bfef95601890afd80709

                      SHA256

                      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                      SHA512

                      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\1O1V4YEG.txt

                      Filesize

                      209B

                      MD5

                      e542acb96c8f892d06e7e321b9547232

                      SHA1

                      6102d1ba07f0cc9c78bfcd0b36848810aa86c3d0

                      SHA256

                      1bd050510045e55e6b613bedccd9056efd034654e9e7c8ac39f8727a193ffa29

                      SHA512

                      118f5e22bc194d08b5d4e4b1be8d8dcbff964d6de13154d22b84a6c8117c76ac3d5a08878d47fce5b9cc99444a3970baf222715fc4a771bb9933682c5627851c

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

                      Filesize

                      2.0MB

                      MD5

                      a10b2902ec3badb571ffdf95698fc24b

                      SHA1

                      339db556f2de1bc007689696700aea3b7c161be5

                      SHA256

                      f5a95e89be6f4619184d7ced844c62d588b36a491aebf5f0b3eaa4d93d127f9a

                      SHA512

                      d0b1e36ad10470fb64ecae36b27d2bb89679b0566695603ef87a8621277b20b2572ad14a69f3b661a10d73ab7b525643fdf132be9b12cddc76930da68c56c269

                    • \Users\Admin\AppData\Local\Temp\vnc.exe

                      Filesize

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • \Users\Admin\AppData\Local\Temp\windef.exe

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • memory/956-110-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/1484-120-0x00000000004B0000-0x000000000054C000-memory.dmp

                      Filesize

                      624KB

                    • memory/1484-115-0x00000000004B0000-0x000000000054C000-memory.dmp

                      Filesize

                      624KB

                    • memory/1484-103-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                      Filesize

                      4KB

                    • memory/2008-49-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2008-37-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2008-45-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2008-39-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2248-55-0x00000000011B0000-0x000000000120E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2412-119-0x0000000000CB0000-0x0000000000D0E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2424-59-0x00000000002C0000-0x00000000002C1000-memory.dmp

                      Filesize

                      4KB

                    • memory/2656-58-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2656-32-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

                      Filesize

                      4KB

                    • memory/2656-52-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2656-30-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2656-33-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2656-50-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2656-51-0x00000000000D0000-0x000000000016C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2740-67-0x0000000000C60000-0x0000000000CBE000-memory.dmp

                      Filesize

                      376KB