Analysis

  • max time kernel
    10s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    05-05-2021 01:45

General

  • Target

    401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0.exe

  • Size

    2.0MB

  • MD5

    bac4151ed56260221d8389d1d7442b37

  • SHA1

    55b5e3d0852e813e8f7ea8d287d025ac75add0cc

  • SHA256

    401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0

  • SHA512

    f15b17035be8381ec2697f30ff34c7cbd8e196ce142f5ab067aaf99548ce8f995e274b53b67e57aae0718be75de85286699833a4344a7c54195c59a239174bbf

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 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\401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0.exe
    "C:\Users\Admin\AppData\Local\Temp\401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3952
    • 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:1812
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2328
    • 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:2316
      • 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:3488
      • 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:3208
        • 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:1212
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\eL1ls2hITk7n.bat" "
          4⤵
            PID:3784
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:3796
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:1804
              • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                5⤵
                  PID:1128
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3208 -s 1892
                4⤵
                • Program crash
                PID:3684
          • C:\Users\Admin\AppData\Local\Temp\401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0.exe
            "C:\Users\Admin\AppData\Local\Temp\401bea52fd5edd675bb5b6bceb00dabb3113fc9e7d73673f67f861f5e42ffaf0.exe"
            2⤵
              PID:2532
            • 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:2932
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            1⤵
              PID:2164
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                  PID:2784
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    3⤵
                      PID:2804
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    2⤵
                      PID:3800
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      2⤵
                        PID:3728
                      • 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:3724

                    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\eL1ls2hITk7n.bat
                      MD5

                      1c07b9ef913fcc5a702558d12ef5a0d7

                      SHA1

                      cf8a8961530b06e1f5065cbfb4b4cbe85fe0f2e7

                      SHA256

                      216b636cdf00822ddf060c32291e997602155056882dff721c51ad62be134007

                      SHA512

                      78dddfee59568d4cf7c3b1abdcd605e88bff0b07fdbbb25d992a0fc5269db122119c4200e537e7a3c1ff617d612601400ce6d1a0ff01a18cea044f0c76da4ece

                    • 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

                      76f36dcb2830f2b734b1d285b33a09a1

                      SHA1

                      7a576512061973c0d0d4d725ff429a28fe13ae60

                      SHA256

                      e3bbca954e150cde3f86d462111927c4ba99fdbed9b5e2ecbf635676912054f4

                      SHA512

                      ca932200c3f60039fa80722eef239fa9f1fbd496df264714541a4e4b32ff0721c8e7bacf1f4322301d935a803d9fec0e3cb5499d8314c2ee099f0ee54d5f2067

                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      MD5

                      76f36dcb2830f2b734b1d285b33a09a1

                      SHA1

                      7a576512061973c0d0d4d725ff429a28fe13ae60

                      SHA256

                      e3bbca954e150cde3f86d462111927c4ba99fdbed9b5e2ecbf635676912054f4

                      SHA512

                      ca932200c3f60039fa80722eef239fa9f1fbd496df264714541a4e4b32ff0721c8e7bacf1f4322301d935a803d9fec0e3cb5499d8314c2ee099f0ee54d5f2067

                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      MD5

                      76f36dcb2830f2b734b1d285b33a09a1

                      SHA1

                      7a576512061973c0d0d4d725ff429a28fe13ae60

                      SHA256

                      e3bbca954e150cde3f86d462111927c4ba99fdbed9b5e2ecbf635676912054f4

                      SHA512

                      ca932200c3f60039fa80722eef239fa9f1fbd496df264714541a4e4b32ff0721c8e7bacf1f4322301d935a803d9fec0e3cb5499d8314c2ee099f0ee54d5f2067

                    • memory/1128-187-0x00000000049B0000-0x0000000004EAE000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/1128-181-0x0000000000000000-mapping.dmp
                    • memory/1212-150-0x0000000000000000-mapping.dmp
                    • memory/1804-180-0x0000000000000000-mapping.dmp
                    • memory/1812-114-0x0000000000000000-mapping.dmp
                    • memory/2164-175-0x0000000000920000-0x0000000000A6A000-memory.dmp
                      Filesize

                      1.3MB

                    • memory/2316-131-0x00000000057C0000-0x00000000057C1000-memory.dmp
                      Filesize

                      4KB

                    • memory/2316-117-0x0000000000000000-mapping.dmp
                    • memory/2316-137-0x0000000006910000-0x0000000006911000-memory.dmp
                      Filesize

                      4KB

                    • memory/2316-136-0x0000000006520000-0x0000000006521000-memory.dmp
                      Filesize

                      4KB

                    • memory/2316-135-0x00000000059A0000-0x00000000059A1000-memory.dmp
                      Filesize

                      4KB

                    • memory/2316-134-0x00000000056A0000-0x0000000005B9E000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/2316-127-0x0000000000F00000-0x0000000000F01000-memory.dmp
                      Filesize

                      4KB

                    • memory/2316-129-0x0000000005BA0000-0x0000000005BA1000-memory.dmp
                      Filesize

                      4KB

                    • memory/2328-132-0x0000000001020000-0x0000000001021000-memory.dmp
                      Filesize

                      4KB

                    • memory/2328-121-0x0000000000000000-mapping.dmp
                    • memory/2328-133-0x0000000000F80000-0x000000000101C000-memory.dmp
                      Filesize

                      624KB

                    • memory/2532-120-0x0000000000400000-0x0000000000420000-memory.dmp
                      Filesize

                      128KB

                    • memory/2532-125-0x000000000041A1F8-mapping.dmp
                    • memory/2784-154-0x0000000000000000-mapping.dmp
                    • memory/2804-166-0x00000000005F0000-0x00000000005F1000-memory.dmp
                      Filesize

                      4KB

                    • memory/2804-167-0x0000000000550000-0x00000000005EC000-memory.dmp
                      Filesize

                      624KB

                    • memory/2804-157-0x0000000000000000-mapping.dmp
                    • memory/2932-130-0x0000000000000000-mapping.dmp
                    • memory/3208-139-0x0000000000000000-mapping.dmp
                    • memory/3208-146-0x0000000004EA0000-0x000000000539E000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/3208-151-0x0000000006520000-0x0000000006521000-memory.dmp
                      Filesize

                      4KB

                    • memory/3488-138-0x0000000000000000-mapping.dmp
                    • memory/3724-174-0x0000000000000000-mapping.dmp
                    • memory/3728-168-0x00000000008B0000-0x00000000008D0000-memory.dmp
                      Filesize

                      128KB

                    • memory/3728-172-0x00000000008CA1F8-mapping.dmp
                    • memory/3784-177-0x0000000000000000-mapping.dmp
                    • memory/3796-179-0x0000000000000000-mapping.dmp
                    • memory/3800-156-0x0000000000000000-mapping.dmp
                    • memory/3800-165-0x0000000004E00000-0x00000000052FE000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/3952-126-0x0000000001190000-0x0000000001191000-memory.dmp
                      Filesize

                      4KB