Analysis

  • max time kernel
    5s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 14:49

General

  • Target

    5f4e720616c54e93f6d7196818063c30N.exe

  • Size

    2.0MB

  • MD5

    5f4e720616c54e93f6d7196818063c30

  • SHA1

    73a5057343b59579fca093e64893043cc6a165a9

  • SHA256

    7f1443e7977bd0f604036f3904ebeb46a375fb5d31c29f136c3638ed31fd35f8

  • SHA512

    a1870d5ebae2d5691710efba344516abf127963e9e68b6c0bcdaaf19263c2759a561a1b650c794a111752368a65705ae591e9c11a51b2457e9ac7620b91f50d0

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYt:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yv

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
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs

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

  • 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\5f4e720616c54e93f6d7196818063c30N.exe
    "C:\Users\Admin\AppData\Local\Temp\5f4e720616c54e93f6d7196818063c30N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1652
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1576
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 552
          3⤵
          • Program crash
          PID:3192
      • 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
        • Suspicious use of WriteProcessMemory
        PID:2844
        • 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:452
        • 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
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4656
          • 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⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1384
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yRAlI21G5HzM.bat" "
            4⤵
              PID:832
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2628
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1680
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4128
                    • 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⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:4132
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2xLwrBnZ88cY.bat" "
                      6⤵
                        PID:2096
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:224
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2676
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4128 -s 1960
                          6⤵
                          • Program crash
                          PID:2340
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 2216
                      4⤵
                      • Program crash
                      PID:5116
                • C:\Users\Admin\AppData\Local\Temp\5f4e720616c54e93f6d7196818063c30N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5f4e720616c54e93f6d7196818063c30N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1960
                • 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:928
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1652 -ip 1652
                1⤵
                  PID:4528
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4656 -ip 4656
                  1⤵
                    PID:116
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3144
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4180
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2328
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 520
                              3⤵
                              • Program crash
                              PID:1288
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:1228
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4452
                              • 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⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:1384
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4180 -ip 4180
                              1⤵
                                PID:3320
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4128 -ip 4128
                                1⤵
                                  PID:3192
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4596
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1552

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    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\2xLwrBnZ88cY.bat

                                      Filesize

                                      208B

                                      MD5

                                      9ade873787f7657f1b550e013cc824be

                                      SHA1

                                      4bfbeefc9cb74f0efe4697731182114d325efff8

                                      SHA256

                                      fa955964a972690ebb13ef61960729144140cb90a3fdc79d72d2050009eedb86

                                      SHA512

                                      74ec0baf379b194bc33e64c10a1c82b2f870d599910ed3401fbb64c6d72631ee09a66b73bb1f562c8df1db65add15f3392586904cd57370022383d534ecdd196

                                    • 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\yRAlI21G5HzM.bat

                                      Filesize

                                      208B

                                      MD5

                                      4026e4488ebc1cad0ab29f1a0488479e

                                      SHA1

                                      601d61cfbdc8ec6ed24c046dbce5b3d8c70d4c2e

                                      SHA256

                                      0a946d2675259151496110f8d3524bacdd5c7f2e80b83b2fb8a36b631ec1e240

                                      SHA512

                                      9e361958b2d46347abe41e9e65a3b639b89f6ea4596fc849d7b4dbdc331ab6341d90116f943c460c38db743c2a9c9f199b8f76f227179f4fa68631f63733fb84

                                    • C:\Users\Admin\AppData\Roaming\Logs\08-14-2024

                                      Filesize

                                      224B

                                      MD5

                                      a3372d4e764990c185c3711bc3b13d4a

                                      SHA1

                                      ff8056e4010d72c2e2f499fd7953d119eb458fe1

                                      SHA256

                                      c6044edfdb922c75f113291b2388b1423a008860d82087734b7705351eebb700

                                      SHA512

                                      5d15d127cf4bd8fd4fdda7289aac4f633b61b6fc1d0b65769b307a860dba4aeb64e3f51a96ba75d091d088420cf855d8065bcbec31e0273ed8c29947f58b362c

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      99281eb5345230b28f1ec1d9262500c3

                                      SHA1

                                      8d8f374a15c0ca356a5565bac3cfbc85e3211b24

                                      SHA256

                                      6143cb4dfefcde51b23b2ea6da15f45cf4a6cfb0ea207d49c002c5ffd1c896e4

                                      SHA512

                                      6a9743bd1a9395b57f96707e01b2598581ff49c177b7063ad1642168f01cdee0804df3be1aa085c696915649c58fb19906a534dc9b11568b0e0c64ba7e2e7bf4

                                    • memory/1632-26-0x00000000024E0000-0x00000000024E1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1632-46-0x00000000024E0000-0x00000000024E1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1960-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1960-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2844-33-0x00000000057E0000-0x0000000005D84000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2844-37-0x0000000006410000-0x000000000644C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2844-34-0x0000000005230000-0x00000000052C2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2844-30-0x0000000000890000-0x00000000008EE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/2844-36-0x0000000005ED0000-0x0000000005EE2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2844-29-0x000000007327E000-0x000000007327F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2844-35-0x00000000052D0000-0x0000000005336000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4452-75-0x0000000000410000-0x0000000000430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4452-81-0x0000000000410000-0x0000000000430000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4656-45-0x00000000065C0000-0x00000000065CA000-memory.dmp

                                      Filesize

                                      40KB