Analysis

  • max time kernel
    5s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 20:23

General

  • Target

    Adobe Download Manager.exe

  • Size

    2.0MB

  • MD5

    cc38554b00499e85149b2c1c0a22473e

  • SHA1

    13382965ec47a60dcf07aeadd7414f215099f564

  • SHA256

    f8b6eddbe3fd90f45c93cfdaf71fe200371518c6f0c100e2aad9f193d7260c05

  • SHA512

    0efe34a59ef8990aa40db6066128f44108c0bce914e450ba69cafae0664c3190cdbdfd0511e42a25e8f4d880e456ef2ccedcd690603e102ae4dcdf7170b2790c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYP:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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.

  • 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
  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2804
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        PID:2924
        • 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:1216
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:2872
            • 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:2224
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\7pGGntPX3mRy.bat" "
              4⤵
                PID:868
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:1736
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • Runs ping.exe
                    PID:1160
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:2688
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 1512
                    4⤵
                    • Program crash
                    PID:860
              • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
                "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
                2⤵
                  PID:2776
                • 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:2616
              • C:\Windows\system32\taskeng.exe
                taskeng.exe {E859E891-73BD-4403-88F2-04BF3D158722} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]
                1⤵
                  PID:2512
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    2⤵
                      PID:1148
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        3⤵
                          PID:2788
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            4⤵
                              PID:2368
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            3⤵
                              PID:768
                            • 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⤵
                                • Creates scheduled task(s)
                                PID:376

                          Network

                          MITRE ATT&CK Matrix ATT&CK v13

                          Execution

                          Scheduled Task/Job

                          1
                          T1053

                          Persistence

                          Scheduled Task/Job

                          1
                          T1053

                          Privilege Escalation

                          Scheduled Task/Job

                          1
                          T1053

                          Discovery

                          Query Registry

                          1
                          T1012

                          Peripheral Device Discovery

                          1
                          T1120

                          System Information Discovery

                          2
                          T1082

                          Remote System Discovery

                          1
                          T1018

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Temp\7pGGntPX3mRy.bat
                            Filesize

                            208B

                            MD5

                            2d7d74593899420313349cf557152de8

                            SHA1

                            220c2e4a7a933d156ff94dc73f08b76e007bab6c

                            SHA256

                            71c77566c766ec10d9a4db120d309c622658ea3b956aab6d825663a8d5c18675

                            SHA512

                            e8ab58d8a906caae58d1d0a6b9b6644a91fbe8803c9bd52b3fec58330d1af84854980da814af8579580a89faa7f71893d137c36cc407d4b3e19b9808ebcf613d

                          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

                            2.0MB

                            MD5

                            5c0382d066a5f2eddcd17911208e8512

                            SHA1

                            191dacdd20e26078d49256b3237806445758fc84

                            SHA256

                            b9aca933f2fb1d4e48e5ac3e29cf6dab4b8c78c311e222a87e5503726442d793

                            SHA512

                            3ffb356029cb9fbbba79531323183625a5795f5830160bd24dacb5a0f58d7d31dad001c63ecde447e3427bced72778044e45dde95746bc0901d550853a4120e5

                          • \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/768-131-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/768-104-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/768-106-0x0000000004900000-0x0000000004940000-memory.dmp
                            Filesize

                            256KB

                          • memory/768-105-0x0000000000A90000-0x0000000000AEE000-memory.dmp
                            Filesize

                            376KB

                          • memory/956-119-0x00000000000D0000-0x00000000000F0000-memory.dmp
                            Filesize

                            128KB

                          • memory/956-114-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                            Filesize

                            4KB

                          • memory/956-108-0x00000000000D0000-0x00000000000F0000-memory.dmp
                            Filesize

                            128KB

                          • memory/2368-123-0x0000000000020000-0x0000000000021000-memory.dmp
                            Filesize

                            4KB

                          • memory/2368-125-0x0000000000410000-0x00000000004AC000-memory.dmp
                            Filesize

                            624KB

                          • memory/2368-124-0x0000000000410000-0x00000000004AC000-memory.dmp
                            Filesize

                            624KB

                          • memory/2368-129-0x0000000000410000-0x00000000004AC000-memory.dmp
                            Filesize

                            624KB

                          • memory/2368-122-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp
                            Filesize

                            4KB

                          • memory/2368-146-0x0000000000410000-0x00000000004AC000-memory.dmp
                            Filesize

                            624KB

                          • memory/2620-29-0x0000000000D60000-0x0000000000D61000-memory.dmp
                            Filesize

                            4KB

                          • memory/2688-150-0x00000000049C0000-0x0000000004A00000-memory.dmp
                            Filesize

                            256KB

                          • memory/2688-151-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/2688-149-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/2776-30-0x0000000000080000-0x00000000000A0000-memory.dmp
                            Filesize

                            128KB

                          • memory/2776-53-0x0000000000080000-0x00000000000A0000-memory.dmp
                            Filesize

                            128KB

                          • memory/2776-32-0x0000000000080000-0x00000000000A0000-memory.dmp
                            Filesize

                            128KB

                          • memory/2776-48-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                            Filesize

                            4KB

                          • memory/2804-103-0x00000000000D0000-0x000000000016C000-memory.dmp
                            Filesize

                            624KB

                          • memory/2804-42-0x00000000000D0000-0x000000000016C000-memory.dmp
                            Filesize

                            624KB

                          • memory/2804-33-0x0000000000020000-0x0000000000021000-memory.dmp
                            Filesize

                            4KB

                          • memory/2804-38-0x0000000000020000-0x0000000000021000-memory.dmp
                            Filesize

                            4KB

                          • memory/2804-36-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp
                            Filesize

                            4KB

                          • memory/2872-66-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/2872-130-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/2872-132-0x0000000004B40000-0x0000000004B80000-memory.dmp
                            Filesize

                            256KB

                          • memory/2872-65-0x0000000000210000-0x000000000026E000-memory.dmp
                            Filesize

                            376KB

                          • memory/2872-67-0x0000000004B40000-0x0000000004B80000-memory.dmp
                            Filesize

                            256KB

                          • memory/2924-56-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB

                          • memory/2924-52-0x0000000001060000-0x00000000010BE000-memory.dmp
                            Filesize

                            376KB

                          • memory/2924-57-0x0000000004AA0000-0x0000000004AE0000-memory.dmp
                            Filesize

                            256KB

                          • memory/2924-68-0x0000000074410000-0x0000000074AFE000-memory.dmp
                            Filesize

                            6.9MB