Analysis

  • max time kernel
    5s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 22:12

General

  • Target

    65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100.exe

  • Size

    2.0MB

  • MD5

    0dcd685318a85789a79e3e7740841531

  • SHA1

    d226b497cb4e085652c437ad41c6e11d8753143e

  • SHA256

    65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100

  • SHA512

    cc31fd1af18ba03c8f5b3e1ee0383493bb79b0b04e1511bb895997dc01cd0dc629f22a59ca304595a2ed63b95175a95b151bdfb79f444b85bcf3a60e371db91a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYX:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y1

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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

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
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 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 4 IoCs
  • Creates scheduled task(s) 1 TTPs 5 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100.exe
    "C:\Users\Admin\AppData\Local\Temp\65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3980
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1396
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 548
          3⤵
          • Program crash
          PID:3448
      • 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:540
        • 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:3520
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1640
          • 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:1460
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CCsgQl62VLmp.bat" "
            4⤵
              PID:4792
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1820
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:920
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2852
                    • 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
                      6⤵
                      • Creates scheduled task(s)
                      PID:2276
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\zsZEjt77zucb.bat" "
                      6⤵
                        PID:4676
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3448
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:4528
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 2260
                          6⤵
                          • Program crash
                          PID:3980
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 1996
                      4⤵
                      • Program crash
                      PID:3768
                • C:\Users\Admin\AppData\Local\Temp\65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100.exe
                  "C:\Users\Admin\AppData\Local\Temp\65cabc811295ff5805caff0f1cdaf7a11108d58e7dd9b85ae4331d9dab1c0100.exe"
                  2⤵
                    PID:876
                  • 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:4748
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3980 -ip 3980
                  1⤵
                    PID:2204
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=4152 /prefetch:8
                    1⤵
                      PID:1444
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4404
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3916
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:1048
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 520
                                3⤵
                                • Program crash
                                PID:4252
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3948
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3992
                                • 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:4748
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3916 -ip 3916
                                1⤵
                                  PID:4844
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1640 -ip 1640
                                  1⤵
                                    PID:3804
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2852 -ip 2852
                                    1⤵
                                      PID:1772

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                      Filesize

                                      1KB

                                      MD5

                                      10eab9c2684febb5327b6976f2047587

                                      SHA1

                                      a12ed54146a7f5c4c580416aecb899549712449e

                                      SHA256

                                      f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                      SHA512

                                      7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                    • C:\Users\Admin\AppData\Local\Temp\CCsgQl62VLmp.bat

                                      Filesize

                                      208B

                                      MD5

                                      e5693880c5e680d2b116d3be8947ba4f

                                      SHA1

                                      5e6be527d438a110f3141778ea889ebf7900413a

                                      SHA256

                                      79a2ddedf5049611cc1720d697ce6e8255cfccff324c71546cac4be78b941758

                                      SHA512

                                      8edb138e0c6ea90e8725008348f7008d991327d9b07af359ad47322bce59885f542e321bf00ca8f13542b6c38790baaf7449748f92e0a6c516dad3917254cdb2

                                    • 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

                                    • C:\Users\Admin\AppData\Local\Temp\zsZEjt77zucb.bat

                                      Filesize

                                      208B

                                      MD5

                                      a9684405d6e386d1bf5085e78d2eb4d1

                                      SHA1

                                      972b35c742c464695797796890592558fe23e38b

                                      SHA256

                                      b763f293c17821f5bb2e53f8db5428689c11d8662b877817120f6c843d901991

                                      SHA512

                                      3b0e266231e117e4bf2833651fa425d0f96aecec89969e1614998b3f600e7b11cf62856ac4f3dc99643df679b012802412d6210f9d3e61c9ce47fbf844675685

                                    • C:\Users\Admin\AppData\Roaming\Logs\05-10-2024

                                      Filesize

                                      224B

                                      MD5

                                      40f72cd1e5b35b7cf259a38b00fa2984

                                      SHA1

                                      52314eb429ce98c909d2c16d9543471ecc08a012

                                      SHA256

                                      6677184c3badcbed991f081bf2775e2af3583794df656f50ca859631085848f5

                                      SHA512

                                      3587f3504020092dd8acc8235454fadcc3376488aef6e5347f1319db7579dec3148b015197d53a4915e25b074d506831535e6e7213c5e9f90e3b8e01072673ab

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      32da53737d0eeac1b232175451faef06

                                      SHA1

                                      5ee559e41293e2631a3c5d7acaadaedd6e9a1230

                                      SHA256

                                      caca96dc02bb74e57c2665c49d5d2f1210da5183e5439e01d6021f9f4c65a659

                                      SHA512

                                      03c536c058a58aa4f1f19736783a819fb986e9be1108080cf9f684c3e70e342210a6be4bd66e45e2f72e54b931b96caca6d74fe813789aabf64606e129b1d59f

                                    • memory/540-30-0x00000000004F0000-0x000000000054E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/540-34-0x0000000004F60000-0x0000000004FF2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/540-35-0x0000000005000000-0x0000000005066000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/540-36-0x0000000005C70000-0x0000000005C82000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/540-37-0x00000000061B0000-0x00000000061EC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/540-33-0x0000000005420000-0x00000000059C4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/540-19-0x000000007354E000-0x000000007354F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/876-29-0x0000000000410000-0x0000000000430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/876-21-0x0000000000410000-0x0000000000430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1640-45-0x0000000006E10000-0x0000000006E1A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2060-20-0x0000000004180000-0x0000000004181000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3992-67-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3992-73-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB