Analysis

  • max time kernel
    23s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2023 17:19

General

  • Target

    NEAS.504f9bf2b2574248bdc0f0f36dbfff20.exe

  • Size

    2.0MB

  • MD5

    504f9bf2b2574248bdc0f0f36dbfff20

  • SHA1

    f6b1022d0e0a8ede0c69c1e4be4e7f3c05a82138

  • SHA256

    95ef8ce551f79351560d1f8f973cf5bf2247dd25a58cb178be97b23764b95de0

  • SHA512

    124a376604657465076fbcf3a2a47e2583a6f6be2b884cbea148f583623bda1e0bd80ddbaad56a42a1e1d8cba000bc4c5a58448dd52d8a95024a8d1b1f80daf1

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY0:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YS

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 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 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 2 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 3 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.504f9bf2b2574248bdc0f0f36dbfff20.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.504f9bf2b2574248bdc0f0f36dbfff20.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1892
    • 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:5104
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:3544
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:4584
      • 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:4688
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:4520
          • 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:2324
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1K57BfqeICMh.bat" "
            4⤵
              PID:2632
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3524
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:3396
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 2312
                4⤵
                • Program crash
                PID:2956
          • C:\Users\Admin\AppData\Local\Temp\NEAS.504f9bf2b2574248bdc0f0f36dbfff20.exe
            "C:\Users\Admin\AppData\Local\Temp\NEAS.504f9bf2b2574248bdc0f0f36dbfff20.exe"
            2⤵
              PID:1480
            • 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:1444
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4520 -ip 4520
            1⤵
              PID:1964
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:4216
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:4476
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:4780
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:1544

                    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

                    3
                    T1012

                    System Information Discovery

                    4
                    T1082

                    Peripheral Device Discovery

                    2
                    T1120

                    Remote System Discovery

                    1
                    T1018

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\1K57BfqeICMh.bat
                      Filesize

                      208B

                      MD5

                      dadd7608edde92f521a8aab343a6d055

                      SHA1

                      d6cf81b309b938bd80037fd8cf633f8beeca1e5a

                      SHA256

                      6e2a8f4501e090689cbba85ba637f08e8de8b4bf00b5bf9762ca0f1e4c2a46ba

                      SHA512

                      50b75216ba3ee41c16481528f650b79ff1ec4b7672549526f967fc26323ba74bcfaca178559faa83ffa6d409f260b536d2621210bd5d49f0f7ace494e589d6c3

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

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • 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\Local\Temp\windef.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                      2.0MB

                      MD5

                      d67b8dcaa08430948c7bc09d1fe635a6

                      SHA1

                      44d04b16a38e6a69f12160140012335fdcebc3b5

                      SHA256

                      7e0175ff06d590e8b37c6b3a1f40a602de3e191fc8a18dbe8b40a97f7c4387c6

                      SHA512

                      a7c80ab3f506c22a4746af8a059324f495f30665126cf8c260e1851ad309dd0ee344f360e17b560b7799915a5af99078fe37f6e23f695d05470033398e5ac975

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

                      2.0MB

                      MD5

                      d67b8dcaa08430948c7bc09d1fe635a6

                      SHA1

                      44d04b16a38e6a69f12160140012335fdcebc3b5

                      SHA256

                      7e0175ff06d590e8b37c6b3a1f40a602de3e191fc8a18dbe8b40a97f7c4387c6

                      SHA512

                      a7c80ab3f506c22a4746af8a059324f495f30665126cf8c260e1851ad309dd0ee344f360e17b560b7799915a5af99078fe37f6e23f695d05470033398e5ac975

                    • memory/1480-38-0x0000000000400000-0x0000000000420000-memory.dmp
                      Filesize

                      128KB

                    • memory/1480-30-0x0000000000400000-0x0000000000420000-memory.dmp
                      Filesize

                      128KB

                    • memory/1892-29-0x00000000016A0000-0x00000000016A1000-memory.dmp
                      Filesize

                      4KB

                    • memory/3544-27-0x0000000000400000-0x000000000049C000-memory.dmp
                      Filesize

                      624KB

                    • memory/3544-44-0x0000000000400000-0x000000000049C000-memory.dmp
                      Filesize

                      624KB

                    • memory/3544-21-0x0000000000400000-0x000000000049C000-memory.dmp
                      Filesize

                      624KB

                    • memory/3544-23-0x00000000004A0000-0x00000000004A1000-memory.dmp
                      Filesize

                      4KB

                    • memory/4520-61-0x0000000005000000-0x0000000005010000-memory.dmp
                      Filesize

                      64KB

                    • memory/4520-55-0x0000000005000000-0x0000000005010000-memory.dmp
                      Filesize

                      64KB

                    • memory/4520-60-0x0000000072CF0000-0x00000000734A0000-memory.dmp
                      Filesize

                      7.7MB

                    • memory/4520-59-0x0000000006770000-0x000000000677A000-memory.dmp
                      Filesize

                      40KB

                    • memory/4520-54-0x0000000072CF0000-0x00000000734A0000-memory.dmp
                      Filesize

                      7.7MB

                    • memory/4584-45-0x0000000005330000-0x0000000005396000-memory.dmp
                      Filesize

                      408KB

                    • memory/4584-39-0x0000000005190000-0x0000000005222000-memory.dmp
                      Filesize

                      584KB

                    • memory/4584-46-0x00000000050E0000-0x00000000050F0000-memory.dmp
                      Filesize

                      64KB

                    • memory/4584-47-0x0000000005F70000-0x0000000005F82000-memory.dmp
                      Filesize

                      72KB

                    • memory/4584-48-0x00000000063B0000-0x00000000063EC000-memory.dmp
                      Filesize

                      240KB

                    • memory/4584-43-0x0000000072CF0000-0x00000000734A0000-memory.dmp
                      Filesize

                      7.7MB

                    • memory/4584-40-0x00000000050E0000-0x00000000050F0000-memory.dmp
                      Filesize

                      64KB

                    • memory/4584-58-0x0000000072CF0000-0x00000000734A0000-memory.dmp
                      Filesize

                      7.7MB

                    • memory/4584-28-0x0000000005600000-0x0000000005BA4000-memory.dmp
                      Filesize

                      5.6MB

                    • memory/4584-19-0x0000000072CF0000-0x00000000734A0000-memory.dmp
                      Filesize

                      7.7MB

                    • memory/4584-22-0x0000000000840000-0x000000000089E000-memory.dmp
                      Filesize

                      376KB

                    • memory/4780-87-0x0000000000A80000-0x0000000000B1C000-memory.dmp
                      Filesize

                      624KB

                    • memory/4780-91-0x0000000000A80000-0x0000000000B1C000-memory.dmp
                      Filesize

                      624KB

                    • memory/4780-80-0x0000000000A80000-0x0000000000B1C000-memory.dmp
                      Filesize

                      624KB

                    • memory/4780-79-0x0000000000B20000-0x0000000000B21000-memory.dmp
                      Filesize

                      4KB