Analysis

  • max time kernel
    4s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06-05-2024 17:51

General

  • Target

    64476e5b643bef08a76188f5228ea38e_NEAS.exe

  • Size

    2.0MB

  • MD5

    64476e5b643bef08a76188f5228ea38e

  • SHA1

    5da81fdb180552d7d90674e1f0fdbfcb274cf2c1

  • SHA256

    c8cf440bcfcc5dfc3751729db1d3533da9255071a838bec40bab1d95c6d773d9

  • SHA512

    a8f54ad302ae5025306e7580dd6f72af4281b5b87eae4b0aadd7918bd3bd89ab416a3ecc956add2d99de91bff3fbbcb71218386ed18210c38ec553cd62dc00bb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYz: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.

  • 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
  • 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\64476e5b643bef08a76188f5228ea38e_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\64476e5b643bef08a76188f5228ea38e_NEAS.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1252
    • 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:2064
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2860
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:2468
      • 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:1008
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1456
          • 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:748
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\ZO9SzryORIEX.bat" "
            4⤵
              PID:640
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2892
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:2768
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2060
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 1464
                  4⤵
                  • Program crash
                  PID:3004
            • C:\Users\Admin\AppData\Local\Temp\64476e5b643bef08a76188f5228ea38e_NEAS.exe
              "C:\Users\Admin\AppData\Local\Temp\64476e5b643bef08a76188f5228ea38e_NEAS.exe"
              2⤵
                PID:2572
              • 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:2876
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {E1E0EA90-0D60-400F-8694-371256ACC230} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
              1⤵
                PID:1552
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:2476
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:2668
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:2256
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:2808
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:872
                            • 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:1664

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\ZO9SzryORIEX.bat

                          Filesize

                          208B

                          MD5

                          56c31badb67c0656a014cc3dfff6e193

                          SHA1

                          e342b5057c595e6a24c4c65065eae6d5498b7b40

                          SHA256

                          69fa0f9221e5bc3a191d99d6a4eaef79956f2143191041ed6f6c245389097414

                          SHA512

                          54963b88dee1e92224790d35633da8b6175eb00a60db5a32d46c1c9d19f374df247576e2f0b4b22a88a6a598a1fe033ad28757cddb5c7241339f189685cc4e4e

                        • 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

                          7b69d356826eae8c6ed3a7ab78cb12b1

                          SHA1

                          c7e206143ae2323aaf523c86313a771a2a1bbe4a

                          SHA256

                          2f040e236b136f4bf27bee48f93b166b8d6d98eb3e014badb809a93daac987ad

                          SHA512

                          1340465f6bb65f76397c0243e0b9f0d42497086003c6a16b4abf98d255c19abffaedf2d19f482667b06c9401c8ae007b2f483e1a57b64e756009b4a9662e5d73

                        • \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/872-114-0x00000000004C0000-0x00000000004E0000-memory.dmp

                          Filesize

                          128KB

                        • memory/872-110-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/872-107-0x00000000004C0000-0x00000000004E0000-memory.dmp

                          Filesize

                          128KB

                        • memory/1252-28-0x0000000000780000-0x0000000000781000-memory.dmp

                          Filesize

                          4KB

                        • memory/1456-62-0x00000000009D0000-0x0000000000A2E000-memory.dmp

                          Filesize

                          376KB

                        • memory/2256-115-0x00000000002F0000-0x000000000038C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2256-97-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2256-99-0x00000000002F0000-0x000000000038C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2468-54-0x00000000011C0000-0x000000000121E000-memory.dmp

                          Filesize

                          376KB

                        • memory/2572-29-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2572-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2572-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2572-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2808-104-0x0000000000A70000-0x0000000000ACE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2860-53-0x0000000000310000-0x00000000003AC000-memory.dmp

                          Filesize

                          624KB

                        • memory/2860-46-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/2860-48-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2860-49-0x0000000000310000-0x00000000003AC000-memory.dmp

                          Filesize

                          624KB