Analysis

  • max time kernel
    5s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 01:31

General

  • Target

    9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667.exe

  • Size

    2.0MB

  • MD5

    63b14fc58ac4a9b3b77d8e597960a43e

  • SHA1

    6eca664a69e19fad43eb575f1f1cf31fedabef24

  • SHA256

    9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667

  • SHA512

    e11484261dbfe916b22718eaddd7228e90a00c695634663b023c225240647f357cb5546f9f7963d8919a78d1f47037dbf63c4220a50d678cf285bd6edfadd9a5

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY6:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YQ

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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667.exe
    "C:\Users\Admin\AppData\Local\Temp\9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667.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:3008
    • 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:2952
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2152
    • 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
      PID:2092
      • 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:1056
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2540
          • 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:760
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\yIB70YEfgrGj.bat" "
            4⤵
              PID:964
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1292
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1752
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2272
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 1488
                  4⤵
                  • Program crash
                  PID:1848
            • C:\Users\Admin\AppData\Local\Temp\9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667.exe
              "C:\Users\Admin\AppData\Local\Temp\9b43a67516a18609f4fbfe10d72947c2552f62d03cd924d7d5d51b326c641667.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1476
            • 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:588
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6F743DD3-50AB-401A-A425-DDE230F7581E} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:1792
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2200
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:2424
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2276
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2256
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:828
                          • 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:816

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

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

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • C:\Users\Admin\AppData\Local\Temp\yIB70YEfgrGj.bat

                        Filesize

                        208B

                        MD5

                        9152f85123be4e0d5d831d25416fceeb

                        SHA1

                        4fc1b0dda84d7fcfc7022c311ffd7cbdddfb6796

                        SHA256

                        626c8b38c8a92a394ddc9390088cc238ebaeca25c4003c2292c1c3e659b17dd0

                        SHA512

                        0673a04cba2f49a5627cdf6ed75bbbe461b8a3336bf84b8c4393651ee4919d5376c09f9721b51856b557789c63ac4808a63396c1e84ad7bb5b9623f06b044a11

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\QK5QUDJG.txt

                        Filesize

                        211B

                        MD5

                        a73157889f4056c9062e05024dcc6b5f

                        SHA1

                        4b604bd4ca90416b3505bb26ac3a3f5f82924ace

                        SHA256

                        4f7f61770ddebf80fbf0bd5bd3f30b95410c8070fb14b8e70952ddb1ee5e09ee

                        SHA512

                        f4dc7c3fe40f16c3c217e00f92f9a02ff2928dcb3cfba69bf50828417325d5789ac698277de26f99703e8a72e111b07f956981cd24cacaf8d6c4ef5e36f3239b

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

                        Filesize

                        2.0MB

                        MD5

                        9ac22a1dbe2f4768bbcbc0ec410cca3f

                        SHA1

                        7dd894dc43cb517c5f23f70b170e638bf7c86d1d

                        SHA256

                        ffbae4f7fee11ef4c11f8f0745ad07287ce046083fb98ccf57d7ea8d076a5f55

                        SHA512

                        dffeda0981488b913e6a7f61b41f6fe00e7e4df6ffccb7481c8df90ee4ab84c74520a9a1cae2b724a83d4411f7180455adabe8968871c0cb6f471e1b4c18dba5

                      • \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/828-117-0x00000000000D0000-0x00000000000F0000-memory.dmp

                        Filesize

                        128KB

                      • memory/828-112-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/828-109-0x00000000000D0000-0x00000000000F0000-memory.dmp

                        Filesize

                        128KB

                      • memory/1476-28-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/1476-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/1476-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/1476-40-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2092-54-0x0000000001370000-0x00000000013CE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2152-46-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2152-48-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                        Filesize

                        4KB

                      • memory/2152-49-0x00000000002C0000-0x000000000035C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2152-53-0x00000000002C0000-0x000000000035C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2256-115-0x0000000000D70000-0x0000000000DCE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2276-88-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

                        Filesize

                        4KB

                      • memory/2276-89-0x00000000004C0000-0x000000000055C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2276-105-0x00000000004C0000-0x000000000055C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2540-64-0x00000000011B0000-0x000000000120E000-memory.dmp

                        Filesize

                        376KB

                      • memory/3008-42-0x0000000000920000-0x0000000000921000-memory.dmp

                        Filesize

                        4KB