Analysis

  • max time kernel
    352s
  • max time network
    372s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-09-2024 11:11

General

  • Target

    240902-lmnh8aybpa_pw_infected.zip

  • Size

    1.0MB

  • MD5

    e79f66773e0e9d8a7e2470c0c817c805

  • SHA1

    c06b9804c476e3d0108ca76c99e2af80bc8e667a

  • SHA256

    1bd9b385e09c5918fd9ff7a15b4c5b874649c0e76f789448e742558723abfafc

  • SHA512

    dcedb7f0b3f4f9aaea38559a29c9181f3ed2b84596712ab0057e748790cf4cc3298ec0d486b1f59f04141fa403b080cabb6006d21b7df3d5deecfd38c4cb412f

  • SSDEEP

    24576:Ua6JFjsO2M2G5BFRmtAnYexFFWy3ECu85zj6r+3:UB5pRmtYYe40Jzqk

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 3 IoCs
  • Executes dropped EXE 4 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.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected.zip
    1⤵
      PID:3988
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4164
      • C:\Program Files\7-Zip\7zG.exe
        "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\" -spe -an -ai#7zMap27756:138:7zEvent30229
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4912
      • C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe
        "C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe"
        1⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2328
        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4132
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k
            3⤵
              PID:1640
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 500
              3⤵
              • Program crash
              PID:360
          • 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:1580
            • 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:1876
            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
              3⤵
                PID:2752
                • 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:3904
            • C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe
              "C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe"
              2⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:4380
            • 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:3756

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\240902-lmnh8aybpa_pw_infected\815df3ce8f1ebbbdcf8fd3b5391a2a70N.exe

            Filesize

            2.0MB

            MD5

            815df3ce8f1ebbbdcf8fd3b5391a2a70

            SHA1

            cc19616d3d9ed0dd4ef6bac2fcf5251bec303f67

            SHA256

            24ce8da6f76bfa558cff3079df170e78893679ccce334fadaf21d961291b30f0

            SHA512

            0aec8172b2b689874b50d5861a11f16cd8dc22116f46a108f1491e14b669bd15f34b1c5cb9ea356a0c1fbfe154ef66050dbf43e74cedc2992e1c3fa3e11b8bc1

          • 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

          • memory/1580-23-0x0000000000FD0000-0x000000000102E000-memory.dmp

            Filesize

            376KB

          • memory/1580-24-0x0000000005D40000-0x000000000623E000-memory.dmp

            Filesize

            5.0MB

          • memory/1580-25-0x00000000058E0000-0x0000000005972000-memory.dmp

            Filesize

            584KB

          • memory/1580-28-0x0000000005980000-0x00000000059E6000-memory.dmp

            Filesize

            408KB

          • memory/1580-29-0x0000000005CF0000-0x0000000005D02000-memory.dmp

            Filesize

            72KB

          • memory/1580-30-0x00000000068F0000-0x000000000692E000-memory.dmp

            Filesize

            248KB

          • memory/2752-38-0x0000000006350000-0x000000000635A000-memory.dmp

            Filesize

            40KB

          • memory/4380-13-0x0000000000400000-0x0000000000420000-memory.dmp

            Filesize

            128KB

          • memory/4380-19-0x0000000000400000-0x0000000000420000-memory.dmp

            Filesize

            128KB