Analysis

  • max time kernel
    3s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-03-2024 02:05

General

  • Target

    fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe

  • Size

    2.0MB

  • MD5

    3df05eb0338fe2e6ef8c5f0717223f04

  • SHA1

    e0cfae759348ed0a0b72eb484adbc2f52b37ac77

  • SHA256

    fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f

  • SHA512

    1270b98bced91805350cf3d61f195111179be74f399fc2f14015b28d314b17e9c3469a0b4dc22a0a86bef86341e88cd011ec372d187ac5358b303a4d227fa0d7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYR: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
  • Detects Windows executables referencing non-Windows User-Agents 5 IoCs
  • Detects executables containing common artifacts observed in infostealers 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
  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe
    "C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3036
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2516
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:2584
      • 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⤵
        • Creates scheduled task(s)
        PID:1552
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2608
          • 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⤵
            • Creates scheduled task(s)
            PID:1748
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\mitijXw8nHfO.bat" "
            4⤵
              PID:1912
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:876
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1732
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2860
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 1508
                  4⤵
                  • Program crash
                  PID:1304
            • C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe
              "C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe"
              2⤵
                PID:2600
              • 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⤵
                • Creates scheduled task(s)
                PID:2420
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {C5AAC6BB-DFB0-4C10-94C7-E2C527462ACA} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
              1⤵
                PID:1940
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:1804
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:1684
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:2972
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:2016
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:2928
                            • 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⤵
                              • Creates scheduled task(s)
                              PID:1720

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\mitijXw8nHfO.bat

                          Filesize

                          208B

                          MD5

                          16ba8e0f5761b164409fef593e29a8ca

                          SHA1

                          74efe3cf6e9b04b715255dff3db6e512e98bea70

                          SHA256

                          75413d1327448329e61f430c4f5d9136f0f2e94ca41cc3f2238241a748e88e10

                          SHA512

                          dea36a6a21081db6917f7f60927986eeb64ee37c23d3aca9321a7e4744e9364cae8decf30e5664840091c5ea0a5b2e77562bdf1746a0398fbaf9ee86df9564fa

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

                          Filesize

                          2.0MB

                          MD5

                          ca82ac62eb2e68bd511748dccfa7bdb3

                          SHA1

                          2532c803d8c45661a4a220b829672030d3879988

                          SHA256

                          d45b8f333fd076a8feee3fb9bd090fc829ca456f6be3c1e7bdcf06d9064961d3

                          SHA512

                          99d57ae5254104050c15bf3c09cef6df503e00ca4ad2641112be02f029b972a4e5b48a5cddb9e15b4f01b0d7c5192a8d672b4f9485e322961e9d94edbbd5dc3c

                        • \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/2016-112-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2016-111-0x0000000000870000-0x00000000008CE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2016-127-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2516-36-0x000007FFFFFDD000-0x000007FFFFFDE000-memory.dmp

                          Filesize

                          4KB

                        • memory/2516-38-0x0000000000190000-0x000000000022C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2516-47-0x0000000000190000-0x000000000022C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2516-39-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/2516-32-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/2516-128-0x0000000000190000-0x000000000022C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2584-67-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2584-56-0x0000000004950000-0x0000000004990000-memory.dmp

                          Filesize

                          256KB

                        • memory/2584-54-0x0000000000CA0000-0x0000000000CFE000-memory.dmp

                          Filesize

                          376KB

                        • memory/2584-55-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2600-33-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/2600-31-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/2600-53-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/2600-46-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2608-66-0x0000000004810000-0x0000000004850000-memory.dmp

                          Filesize

                          256KB

                        • memory/2608-64-0x00000000000C0000-0x000000000011E000-memory.dmp

                          Filesize

                          376KB

                        • memory/2608-65-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2608-130-0x0000000004810000-0x0000000004850000-memory.dmp

                          Filesize

                          256KB

                        • memory/2608-129-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2860-149-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2860-148-0x0000000001E60000-0x0000000001EA0000-memory.dmp

                          Filesize

                          256KB

                        • memory/2860-147-0x0000000073E30000-0x000000007451E000-memory.dmp

                          Filesize

                          6.9MB

                        • memory/2876-30-0x0000000002A90000-0x0000000002A91000-memory.dmp

                          Filesize

                          4KB

                        • memory/2928-115-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2928-126-0x0000000000080000-0x00000000000A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/2928-121-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                          Filesize

                          4KB

                        • memory/2972-131-0x00000000000F0000-0x000000000018C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2972-99-0x00000000000F0000-0x000000000018C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2972-91-0x00000000000F0000-0x000000000018C000-memory.dmp

                          Filesize

                          624KB

                        • memory/2972-92-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/2972-90-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

                          Filesize

                          4KB