Analysis

  • max time kernel
    3s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 08:43

General

  • Target

    879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297bN.exe

  • Size

    2.0MB

  • MD5

    ae0f35a212119e88e82a327d0cdee940

  • SHA1

    4d2896c05eb876bdf5a02d08becf6172f854ceb3

  • SHA256

    879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297b

  • SHA512

    b8883c1ddcaae074371cb8a37db9ada76ebd1a18b1d414eddef220c19856fe42cf57ecfdf52bded1c5e2abd54176e96d3fe87aec220236c29cdb3ae67b550fdf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYQ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y6

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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).

  • 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 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297bN.exe
    "C:\Users\Admin\AppData\Local\Temp\879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297bN.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:2120
    • 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:2320
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1720
    • 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:1856
      • 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:984
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2996
          • 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:2852
      • C:\Users\Admin\AppData\Local\Temp\879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297bN.exe
        "C:\Users\Admin\AppData\Local\Temp\879d0933969ebecd830cf85fbe418786a93fd8beb38a82c975e296e01889297bN.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2244
      • 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:2740
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {AB7F80DC-1AA7-496A-9779-D5A9D3BCE734} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
      1⤵
        PID:2556
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:780
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:584
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:1476
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:2200
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:1548

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  2.0MB

                  MD5

                  6452f0c87b199e9ffcea9a09e2fdf910

                  SHA1

                  e02be4ee25a59e9ef28e17b036562c320c9146ce

                  SHA256

                  188331bcd56ccf1623565d86301c0f679df3fa89b2b6dfe7007ed69686badc96

                  SHA512

                  d07feaa978f9a1845f0747667a9ae50c2fe02f4b1c9e4a26f262eb3c6a379787cdb37f2a558b6f44a54251ccaca9536836da478fbd5e76caa756dd44a3458d15

                • \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/1476-101-0x00000000003F0000-0x000000000048C000-memory.dmp

                  Filesize

                  624KB

                • memory/1476-100-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1548-110-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1720-50-0x0000000000390000-0x000000000042C000-memory.dmp

                  Filesize

                  624KB

                • memory/1720-48-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                  Filesize

                  4KB

                • memory/1720-46-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/1720-54-0x0000000000390000-0x000000000042C000-memory.dmp

                  Filesize

                  624KB

                • memory/1856-49-0x0000000001230000-0x000000000128E000-memory.dmp

                  Filesize

                  376KB

                • memory/2120-30-0x0000000000D80000-0x0000000000D81000-memory.dmp

                  Filesize

                  4KB

                • memory/2200-97-0x0000000000DF0000-0x0000000000E4E000-memory.dmp

                  Filesize

                  376KB

                • memory/2244-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2244-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2244-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2244-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2996-62-0x0000000001000000-0x000000000105E000-memory.dmp

                  Filesize

                  376KB