Analysis

  • max time kernel
    4s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2024 02:26

General

  • Target

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe

  • Size

    2.0MB

  • MD5

    2874eed770eb9c67ded0643e813a00a0

  • SHA1

    7b5ed1e6164fca1b0c82b256c238840c965661c7

  • SHA256

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637c

  • SHA512

    203ae06889e57029d663dc56c6f693cb224baa12d1c434672a39ca6dbc62acac2e291de6f4acba9db6ed562a9fb7fe5f5b8c24d6201bc1f377a2dc7df2459562

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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 6 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 5 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\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
    "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.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:1640
    • 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:2896
    • 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:2908
      • 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:1668
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1436
          • 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:3040
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\Fj57auizSIQt.bat" "
            4⤵
              PID:2040
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1952
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2192
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1784
                    • 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
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1428
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1436 -s 1516
                  4⤵
                  • Program crash
                  PID:1008
            • C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
              "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2804
            • 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:3004
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6B38EE94-9B34-4F34-B5CB-DA2F2D954E4C} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
            1⤵
              PID:2384
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1084
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:1088
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2136
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2196
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2408
                          • 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:2440

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\Fj57auizSIQt.bat

                        Filesize

                        208B

                        MD5

                        8d34b5ee9557de3d22a148e899156b78

                        SHA1

                        e086177d3065e183d45ab48a217bc3fd3c7a2cf9

                        SHA256

                        1b8dc5ec5a2cc208f1c26083c2ebbe0a68830d495436c4a0a71bf5988aa6528f

                        SHA512

                        033f703debff77b61b21058ca746561c5983c888a8733758f507838694e054f615b1dd69e3f9aa663c256bbd82edb7da884dd8849e7e0310cbe9b07445a1ecf8

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

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • C:\Users\Admin\AppData\Roaming\Logs\10-03-2024

                        Filesize

                        224B

                        MD5

                        b290ef22bd52cdc4fba7bba3983a6dff

                        SHA1

                        feb5d76d148659fee37a1c40fdaeea925590c111

                        SHA256

                        3880ae7776ca2fcd0e259d0f0d9d48de920a3a4aae9c6b64882db63f2a72bffe

                        SHA512

                        423d1d8bde2be4fffd84ff28e971fe84ba0b90a9e763e6c08500cfe81f84ff0c4b1d0f5c46ea882d666299e0382e81f60b5da4d8334b153a9fc4b0ffb1d93b4b

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\CB1AV2MR.txt

                        Filesize

                        211B

                        MD5

                        7ad370ed7bf67d20296fcd67589e28a5

                        SHA1

                        05873a823a9d9b08844f4882e144bbe42c4ba2ea

                        SHA256

                        25ecb0798be6bb8f5d5eec326a4e58ad42f14c9ae92bfed4869ecdfa032a1046

                        SHA512

                        df9d928120a6394b902da598a6059dd624f7cce64f31d664cb5a1c9e021cfe8027ab461d8945332429563a8da5da68ff2a0acf5ce8040f93acec4a111ce1622e

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

                        Filesize

                        2.0MB

                        MD5

                        c4717463da261ca245b6051fd5e446b5

                        SHA1

                        dc58d4635c23ce2aadaa286bcdc030d8ce985110

                        SHA256

                        5f98f679a65a2bcf225867bd7905ab25a687d33ed9738d9d05c8131e3f605d6f

                        SHA512

                        469e156f6338f54041014cd682bc647f40e81163c6ced034e6d3ac89e8b770134345dc1f09e41a395b347f20dc1e273713752548df30c1bc5eaabfac0d465076

                      • \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/1436-64-0x00000000012D0000-0x000000000132E000-memory.dmp

                        Filesize

                        376KB

                      • memory/1640-30-0x0000000000C60000-0x0000000000C61000-memory.dmp

                        Filesize

                        4KB

                      • memory/1784-135-0x00000000012D0000-0x000000000132E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2136-113-0x0000000000350000-0x00000000003EC000-memory.dmp

                        Filesize

                        624KB

                      • memory/2136-117-0x0000000000350000-0x00000000003EC000-memory.dmp

                        Filesize

                        624KB

                      • memory/2136-112-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

                        Filesize

                        4KB

                      • memory/2196-99-0x00000000008E0000-0x000000000093E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2408-105-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2804-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2804-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2804-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2804-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2896-48-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

                        Filesize

                        4KB

                      • memory/2896-53-0x00000000001B0000-0x000000000024C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2896-46-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2896-49-0x00000000001B0000-0x000000000024C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2908-54-0x0000000000050000-0x00000000000AE000-memory.dmp

                        Filesize

                        376KB