Analysis

  • max time kernel
    8s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 16:50

General

  • Target

    67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6.exe

  • Size

    2.0MB

  • MD5

    aee69fa9ba55a5f460c4c3e528f06fda

  • SHA1

    ebc0bfe4a615d9ade6c82adba409ee2aafbdfaae

  • SHA256

    67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6

  • SHA512

    17482a1115288582a3161594053c30898e5bfee58840da98ff4c5d76ac82b73b6b958d23619a5d9601d076373b600168b2a50ed3c91895568061c1b198e516f7

Malware Config

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 Payload 10 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 24 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6.exe
    "C:\Users\Admin\AppData\Local\Temp\67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3560
    • 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:848
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1220
    • 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:1452
      • 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:3956
      • 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:1324
        • 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:2768
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4Ehj9S2XyHv2.bat" "
          4⤵
            PID:3964
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:1380
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:3708
              • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                5⤵
                  PID:576
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 2096
                4⤵
                • Program crash
                PID:1012
          • C:\Users\Admin\AppData\Local\Temp\67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6.exe
            "C:\Users\Admin\AppData\Local\Temp\67f8fe7a45cc83c07d6a835a0c31da6d1ede5f3daee004637bb4284f6e06cfe6.exe"
            2⤵
              PID:2328
            • 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:2888
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            1⤵
              PID:1884
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                  PID:2524
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    3⤵
                      PID:1728
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    2⤵
                      PID:2180
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      2⤵
                        PID:2520
                      • 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:1380

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

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

                      MD5

                      1efce85e583a7a2f123317a20f889d04

                      SHA1

                      60f71aa73ea2e2a48ed1c17e3c6d440abf39c914

                      SHA256

                      2b5532a94879134a876b11c188ade1a61deaba6a80fe1f3a3a77cc442f1cca0d

                      SHA512

                      45a5cd283e6a6ac34c3d8b1a6d73dc1cf52d8c974cf84624e8e9924eddaf354ccda929bce728b47db2b62175e47bdc3eaca6bc6b84d3565881fa87c50319d24c

                    • C:\Users\Admin\AppData\Local\Temp\4Ehj9S2XyHv2.bat

                      MD5

                      f9374eecbccbaa6f40b18cac16e19071

                      SHA1

                      0ce3e3ccf4c7458560c454639f34c7d5efd1dd1b

                      SHA256

                      48c32602d68cf9f18b5d4dc83a6267d9f94277b531feea82aeea5fb47eb90d6c

                      SHA512

                      76cc55f1e572cd096184908129ef957b54d1ce3fa5566ea72fe8be3b980201cad375b0817980293f843044f4ff32ec34362294600512c0969231a6df1632a448

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

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                      MD5

                      decb54951f4c386e1f3ada4ebe69f3de

                      SHA1

                      85044c02aa5fd10648cf1f6a445f405bd77728be

                      SHA256

                      fc46973f3c2f0e17d08e28a0fd0c4afe3d02f03267fa816aab8ddaf670d29440

                      SHA512

                      ae6ef8379722dd8024b96ec828c3520f655716a24de7e4c82f55a340d4120d18cea63c397256aeebf6e6b51343a7a10277ffb23e9f5d204a6abdd32b6deb92b6

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

                      MD5

                      decb54951f4c386e1f3ada4ebe69f3de

                      SHA1

                      85044c02aa5fd10648cf1f6a445f405bd77728be

                      SHA256

                      fc46973f3c2f0e17d08e28a0fd0c4afe3d02f03267fa816aab8ddaf670d29440

                      SHA512

                      ae6ef8379722dd8024b96ec828c3520f655716a24de7e4c82f55a340d4120d18cea63c397256aeebf6e6b51343a7a10277ffb23e9f5d204a6abdd32b6deb92b6

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

                      MD5

                      decb54951f4c386e1f3ada4ebe69f3de

                      SHA1

                      85044c02aa5fd10648cf1f6a445f405bd77728be

                      SHA256

                      fc46973f3c2f0e17d08e28a0fd0c4afe3d02f03267fa816aab8ddaf670d29440

                      SHA512

                      ae6ef8379722dd8024b96ec828c3520f655716a24de7e4c82f55a340d4120d18cea63c397256aeebf6e6b51343a7a10277ffb23e9f5d204a6abdd32b6deb92b6

                    • memory/576-181-0x0000000000000000-mapping.dmp

                    • memory/576-187-0x0000000004B20000-0x0000000004B21000-memory.dmp

                      Filesize

                      4KB

                    • memory/848-114-0x0000000000000000-mapping.dmp

                    • memory/1220-132-0x0000000000190000-0x000000000022C000-memory.dmp

                      Filesize

                      624KB

                    • memory/1220-131-0x0000000000230000-0x0000000000231000-memory.dmp

                      Filesize

                      4KB

                    • memory/1220-117-0x0000000000000000-mapping.dmp

                    • memory/1324-139-0x0000000000000000-mapping.dmp

                    • memory/1324-151-0x0000000006610000-0x0000000006611000-memory.dmp

                      Filesize

                      4KB

                    • memory/1324-146-0x0000000005130000-0x0000000005131000-memory.dmp

                      Filesize

                      4KB

                    • memory/1380-154-0x0000000000000000-mapping.dmp

                    • memory/1380-178-0x0000000000000000-mapping.dmp

                    • memory/1452-123-0x0000000005AA0000-0x0000000005AA1000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-137-0x0000000006630000-0x0000000006631000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-136-0x0000000006240000-0x0000000006241000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-135-0x0000000005710000-0x0000000005711000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-134-0x00000000055A0000-0x0000000005A9E000-memory.dmp

                      Filesize

                      5.0MB

                    • memory/1452-124-0x00000000055A0000-0x00000000055A1000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-121-0x0000000000C30000-0x0000000000C31000-memory.dmp

                      Filesize

                      4KB

                    • memory/1452-118-0x0000000000000000-mapping.dmp

                    • memory/1728-160-0x0000000000000000-mapping.dmp

                    • memory/1728-170-0x0000000000800000-0x0000000000801000-memory.dmp

                      Filesize

                      4KB

                    • memory/1728-171-0x0000000000760000-0x00000000007FC000-memory.dmp

                      Filesize

                      624KB

                    • memory/2180-161-0x0000000000000000-mapping.dmp

                    • memory/2180-169-0x0000000000A40000-0x0000000000A41000-memory.dmp

                      Filesize

                      4KB

                    • memory/2328-125-0x0000000000610000-0x0000000000630000-memory.dmp

                      Filesize

                      128KB

                    • memory/2328-129-0x000000000062A1F8-mapping.dmp

                    • memory/2520-176-0x000000000041A1F8-mapping.dmp

                    • memory/2520-172-0x0000000000400000-0x0000000000420000-memory.dmp

                      Filesize

                      128KB

                    • memory/2524-158-0x0000000000000000-mapping.dmp

                    • memory/2768-150-0x0000000000000000-mapping.dmp

                    • memory/2888-130-0x0000000000000000-mapping.dmp

                    • memory/3560-133-0x0000000003BB0000-0x0000000003BB1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3708-155-0x0000000000000000-mapping.dmp

                    • memory/3956-138-0x0000000000000000-mapping.dmp

                    • memory/3964-152-0x0000000000000000-mapping.dmp