Analysis

  • max time kernel
    5s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08-06-2024 18:51

General

  • Target

    0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402.exe

  • Size

    2.0MB

  • MD5

    f8c89d44421a3dfba7b3cbb4dfdd5965

  • SHA1

    18b61753bcc81f83ac05772d0de406622475a730

  • SHA256

    0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402

  • SHA512

    0f46d6280086206c7b2c997924ab45d1b0994fffa3cf750748d4f547d2897781e55fcb6f5639d35d975ab828a8b33b01d09c4fdcda77dbdfa6678a763f7ffc85

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY6:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y8

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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402.exe
    "C:\Users\Admin\AppData\Local\Temp\0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1688
    • 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:1956
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2552
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2556
      • 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:1760
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2656
          • 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:1808
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\X6q91B3vKBN8.bat" "
            4⤵
              PID:1624
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1916
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:2736
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:644
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 1532
                  4⤵
                  • Program crash
                  PID:1256
            • C:\Users\Admin\AppData\Local\Temp\0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402.exe
              "C:\Users\Admin\AppData\Local\Temp\0cdb794dd58f33c22aed607dd2fd875497e91bc1d213906d2b54101efdb19402.exe"
              2⤵
                PID:2708
              • 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:2660
            • C:\Windows\system32\taskeng.exe
              taskeng.exe {45D12C51-2CE7-40FB-AEB8-068689E1A348} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
              1⤵
                PID:1372
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  2⤵
                    PID:1612
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      3⤵
                        PID:1984
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          4⤵
                            PID:748
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          3⤵
                            PID:552
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            3⤵
                              PID:2196
                            • 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:2280

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Temp\X6q91B3vKBN8.bat
                          Filesize

                          208B

                          MD5

                          b1fcb7d1f5263918b37b86e12a46d718

                          SHA1

                          6eb699630b184fde02055632dabe12ca7e2fbb90

                          SHA256

                          a651c67800ca617e25ad0f6556c9e8953393e591eed906f6cb449ae581fb23d7

                          SHA512

                          31baa061f4a5fd4548abd01d804e546c33b523f3e76a2ace8ac250b307c7289da960d7e01572de76b760671c5e3d5353dda03e783b092892a35a9f0bc1a215d6

                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          MD5

                          d41d8cd98f00b204e9800998ecf8427e

                          SHA1

                          da39a3ee5e6b4b0d3255bfef95601890afd80709

                          SHA256

                          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                          SHA512

                          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\H67QJD4F.txt
                          Filesize

                          213B

                          MD5

                          bcb297b0d371997de81e5d72920c0e07

                          SHA1

                          40f92f18bf94ab174b8830f9b674443cb181079e

                          SHA256

                          27c7187a4828d66fd0642d4d32eb7768b4d16d4527e9bf7b443be898d8d1c6bb

                          SHA512

                          f40044b183bc53c205e2ab4e47d2b26c377ca69b7c5de2da6d0d2d816193bfda90d6bca160c5725ef55727405146e554e818960056518d745362356eeb207809

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

                          2.0MB

                          MD5

                          31ef8a69fc0eef60d37753d15a221d63

                          SHA1

                          511fc0e3ba3d32669d18fc22f2c783a07c44e3dd

                          SHA256

                          1e08cf4f46a37cf2f2037e04c06ba70c19bcae3c09678c7bcfce261ba8e8b13b

                          SHA512

                          fe3d00df2dc88ae750472f768a60bfc42ad5805598c926f4b6683d28e69398d709fe12f979777c6825933aad322800fc4b911af1e0ba49b6a4ac895a82f892ae

                        • \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/552-124-0x0000000000BF0000-0x0000000000C4E000-memory.dmp
                          Filesize

                          376KB

                        • memory/748-132-0x0000000000270000-0x000000000030C000-memory.dmp
                          Filesize

                          624KB

                        • memory/748-127-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp
                          Filesize

                          4KB

                        • memory/748-128-0x0000000000270000-0x000000000030C000-memory.dmp
                          Filesize

                          624KB

                        • memory/1688-28-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
                          Filesize

                          4KB

                        • memory/2196-115-0x00000000002D0000-0x00000000002F0000-memory.dmp
                          Filesize

                          128KB

                        • memory/2196-118-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                          Filesize

                          4KB

                        • memory/2196-122-0x00000000002D0000-0x00000000002F0000-memory.dmp
                          Filesize

                          128KB

                        • memory/2552-53-0x0000000000150000-0x00000000001EC000-memory.dmp
                          Filesize

                          624KB

                        • memory/2552-48-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp
                          Filesize

                          4KB

                        • memory/2552-46-0x0000000000020000-0x0000000000021000-memory.dmp
                          Filesize

                          4KB

                        • memory/2552-49-0x0000000000150000-0x00000000001EC000-memory.dmp
                          Filesize

                          624KB

                        • memory/2556-54-0x0000000001050000-0x00000000010AE000-memory.dmp
                          Filesize

                          376KB

                        • memory/2656-64-0x00000000002B0000-0x000000000030E000-memory.dmp
                          Filesize

                          376KB

                        • memory/2708-30-0x00000000002E0000-0x0000000000300000-memory.dmp
                          Filesize

                          128KB

                        • memory/2708-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                          Filesize

                          4KB

                        • memory/2708-42-0x00000000002E0000-0x0000000000300000-memory.dmp
                          Filesize

                          128KB

                        • memory/2708-32-0x00000000002E0000-0x0000000000300000-memory.dmp
                          Filesize

                          128KB