Analysis

  • max time kernel
    2s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-10-2024 00:18

General

  • Target

    dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5cN.exe

  • Size

    2.0MB

  • MD5

    960ff540abee5ffceffa1542e18488d0

  • SHA1

    9777a87a1caac1e59e4f60f3aab007807a3a3f9a

  • SHA256

    dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5c

  • SHA512

    e912e09ae3d85729c7035a9d2f777637665891c728b35e0ccf04a6a22af3fa99cdcf010382241a9159a6236e3d7b8eec730a0f7a862c1b84d2a376a8fca764a1

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYR: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 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 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.

  • 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 7 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 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5cN.exe
    "C:\Users\Admin\AppData\Local\Temp\dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5cN.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:2372
    • 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:2576
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2868
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1248
        • 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⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2036
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2124
          • 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:2072
      • C:\Users\Admin\AppData\Local\Temp\dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5cN.exe
        "C:\Users\Admin\AppData\Local\Temp\dc86d27676c9fbf2fb127d4d282d27baadd9223b404e082bcc8e1a80f7fe0a5cN.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:1952
      • 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:2764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \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/1248-48-0x00000000001B0000-0x000000000020E000-memory.dmp

      Filesize

      376KB

    • memory/1952-39-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1952-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/1952-29-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1952-28-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/2124-60-0x00000000009F0000-0x0000000000A4E000-memory.dmp

      Filesize

      376KB

    • memory/2372-42-0x0000000000950000-0x0000000000951000-memory.dmp

      Filesize

      4KB

    • memory/2372-64-0x0000000000950000-0x0000000000951000-memory.dmp

      Filesize

      4KB

    • memory/2988-45-0x0000000000020000-0x0000000000021000-memory.dmp

      Filesize

      4KB

    • memory/2988-47-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

      Filesize

      4KB