Analysis

  • max time kernel
    4s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 05:44

General

  • Target

    c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1.exe

  • Size

    2.0MB

  • MD5

    3033d164767ec699060e7a437da7e85c

  • SHA1

    e0d86c8c42d4d1225eee24dde5a1448b02707129

  • SHA256

    c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1

  • SHA512

    e8468d885040bb69919a1110a60ab67624028ea5c36de7b9d0baec6a078530dce65ac56a4e442a355a38bb2f73f6cf92e0a38485d16e50ba4e10fc6487a0a6ea

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYt:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

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 WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1.exe
    "C:\Users\Admin\AppData\Local\Temp\c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1.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:2224
    • 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:2172
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2732
    • 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:2752
      • 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:2324
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1768
          • 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:2976
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\KwjZoZxnEJEJ.bat" "
            4⤵
              PID:1748
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1712
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:948
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:548
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 1384
                  4⤵
                  • Program crash
                  PID:1696
            • C:\Users\Admin\AppData\Local\Temp\c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1.exe
              "C:\Users\Admin\AppData\Local\Temp\c332f4d57dabe228b40ae4a6003b31647cb9241658b79f681680ff5f89d68be1.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:3064
            • 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:2956
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6B8B939B-5631-40A7-91E7-20A8C943779E} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:1072
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1516
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:2392
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:1428
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2160
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2516
                          • 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:520

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

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

                        Filesize

                        208B

                        MD5

                        4b7ddc1ad2dd967aefa5394d6976106e

                        SHA1

                        87c833ebec0fbaf0868a761811b181664c17d2f1

                        SHA256

                        7d127d0fd701cfd1dd21866396d175da19b4bef6a3be6b6430c20e406ccb24b3

                        SHA512

                        acaeb0de2c63a5bdbdf2038a193cc71107947a8e5e581845f9575166a858bc6d55e54dcbfafad872cbaa7b9388ab167cbce20f634887d8fe1e786cac6d44ef47

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

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\DTO0VNNN.txt

                        Filesize

                        211B

                        MD5

                        334bf0b1ae291789bbb5f5e9c88fcf3e

                        SHA1

                        0d54bd396c089c83f09a306e052ca04476a9d430

                        SHA256

                        c9509134e97a9933e9de60f2a798931e2ab97499a751623739dd36bec63969e1

                        SHA512

                        3b6d702a0815873f9aa4cd5efc8a68d65c1b2eb080c66c9a00ac191e642211a3f5277c6f2ba353426c05228ae0ddcc5fba5b7b5e22e6327d57ad23dc359cec91

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

                        Filesize

                        2.0MB

                        MD5

                        4eee1f6996516031ff8a25484c573821

                        SHA1

                        040429fdc5a989010020b90b308a82006f625913

                        SHA256

                        d2822bc3d5caa3a54dcebc069cf252cfd7cb524ed18ece5effc9292b065c572d

                        SHA512

                        5c06db2485fb44a01f77e249057df87b7ca12d04783f3dfcfe13459c74abf57ccd4eb365402b956513e31682b0629efb8e32caf88b43e2c28475e875e34562ef

                      • \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/1428-101-0x00000000003E0000-0x000000000047C000-memory.dmp

                        Filesize

                        624KB

                      • memory/1428-100-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

                        Filesize

                        4KB

                      • memory/1768-60-0x0000000000D60000-0x0000000000DBE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2160-115-0x00000000000B0000-0x000000000010E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2224-33-0x0000000000380000-0x0000000000381000-memory.dmp

                        Filesize

                        4KB

                      • memory/2516-107-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2516-110-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2516-114-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2732-35-0x0000000000300000-0x000000000039C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2732-64-0x0000000000300000-0x000000000039C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2732-49-0x0000000000300000-0x000000000039C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2732-40-0x0000000000300000-0x000000000039C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2732-30-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2732-32-0x000007FFFFFD6000-0x000007FFFFFD7000-memory.dmp

                        Filesize

                        4KB

                      • memory/2732-34-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2752-52-0x0000000001030000-0x000000000108E000-memory.dmp

                        Filesize

                        376KB

                      • memory/3064-48-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3064-39-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3064-42-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3064-45-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB