Analysis

  • max time kernel
    10s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 15:10

General

  • Target

    7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe.exe

  • Size

    2.0MB

  • MD5

    d4edd34fbd7b01c393c944b7157f22c2

  • SHA1

    4e295252e048405e3e9e980b71870bbcbd7cb1d5

  • SHA256

    7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe

  • SHA512

    7533c33686d8700e9a2f4ddbf933254a24cf8130af79a1c70f7280419aa09297337dce12aee1012d2a9cb9f2328fea037673732ee8e2056f49162b02dcae7b0d

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\7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe.exe
    "C:\Users\Admin\AppData\Local\Temp\7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3992
    • 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:1548
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:3052
    • 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:3092
      • 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:3576
      • 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:2140
        • 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:3820
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\huv6WRe9abfH.bat" "
          4⤵
            PID:3788
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:1492
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:1512
              • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                5⤵
                  PID:996
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2140 -s 2100
                4⤵
                • Program crash
                PID:3956
          • C:\Users\Admin\AppData\Local\Temp\7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe.exe
            "C:\Users\Admin\AppData\Local\Temp\7b9ac1d6cb16b7288b32d3686693af170d2679c811192941d52dd6857727d1fe.exe"
            2⤵
              PID:4052
            • 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:3160
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            1⤵
              PID:1340
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                  PID:2300
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    3⤵
                      PID:2212
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    2⤵
                      PID:764
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      2⤵
                        PID:3356
                      • 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:3332

                    Network

                    MITRE ATT&CK Matrix ATT&CK v6

                    Execution

                    Scheduled Task

                    1
                    T1053

                    Persistence

                    Scheduled Task

                    1
                    T1053

                    Privilege Escalation

                    Scheduled Task

                    1
                    T1053

                    Discovery

                    Query Registry

                    2
                    T1012

                    Peripheral Device Discovery

                    2
                    T1120

                    System Information Discovery

                    3
                    T1082

                    Remote System Discovery

                    1
                    T1018

                    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\huv6WRe9abfH.bat
                      MD5

                      fbd2091380b4c1f54864cd67db836f15

                      SHA1

                      3fbd0b583307a04bf4c8cb84fae5fd5ca3ab2d03

                      SHA256

                      8e6ce37441e3a4583704f4f1d731f56d4e93da7989a87ea8d669469ef7d25e38

                      SHA512

                      d7f6a9c89ba8d433a3e5cd5d8d9d306277bfb2607296651e8d7de62801b156c01ea0b2d227c35c4e11fd8b1ad14ce7b9c614b79fba2db4a115d615916aea5c5f

                    • 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

                      02a91c12eb8fd483e78310223f48f259

                      SHA1

                      8f5cc1127003dced11dffc733db69b1d54199fc9

                      SHA256

                      84817e2fa49d35fa8e1591ce26e0f4f2f530751d90b62a72ae595f25e8bd9303

                      SHA512

                      0beb32ac2521cd1689e3e51de3c42fbef8de8584cefee0960dc1a085b84f351017a77bfbbc3bbcc03a8447097674268a48ff354cf516b6e13e1d8cf426a0fbe6

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

                      02a91c12eb8fd483e78310223f48f259

                      SHA1

                      8f5cc1127003dced11dffc733db69b1d54199fc9

                      SHA256

                      84817e2fa49d35fa8e1591ce26e0f4f2f530751d90b62a72ae595f25e8bd9303

                      SHA512

                      0beb32ac2521cd1689e3e51de3c42fbef8de8584cefee0960dc1a085b84f351017a77bfbbc3bbcc03a8447097674268a48ff354cf516b6e13e1d8cf426a0fbe6

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

                      02a91c12eb8fd483e78310223f48f259

                      SHA1

                      8f5cc1127003dced11dffc733db69b1d54199fc9

                      SHA256

                      84817e2fa49d35fa8e1591ce26e0f4f2f530751d90b62a72ae595f25e8bd9303

                      SHA512

                      0beb32ac2521cd1689e3e51de3c42fbef8de8584cefee0960dc1a085b84f351017a77bfbbc3bbcc03a8447097674268a48ff354cf516b6e13e1d8cf426a0fbe6

                    • memory/764-177-0x0000000004A00000-0x0000000004EFE000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/764-169-0x0000000000000000-mapping.dmp
                    • memory/996-156-0x0000000000000000-mapping.dmp
                    • memory/996-162-0x00000000056E0000-0x00000000056E1000-memory.dmp
                      Filesize

                      4KB

                    • memory/1492-154-0x0000000000000000-mapping.dmp
                    • memory/1512-155-0x0000000000000000-mapping.dmp
                    • memory/1548-114-0x0000000000000000-mapping.dmp
                    • memory/2140-146-0x0000000004D80000-0x0000000004D81000-memory.dmp
                      Filesize

                      4KB

                    • memory/2140-151-0x00000000065F0000-0x00000000065F1000-memory.dmp
                      Filesize

                      4KB

                    • memory/2140-139-0x0000000000000000-mapping.dmp
                    • memory/2212-179-0x00000000008E0000-0x000000000097C000-memory.dmp
                      Filesize

                      624KB

                    • memory/2212-178-0x0000000000980000-0x0000000000981000-memory.dmp
                      Filesize

                      4KB

                    • memory/2212-168-0x0000000000000000-mapping.dmp
                    • memory/2300-166-0x0000000000000000-mapping.dmp
                    • memory/3052-132-0x0000000000550000-0x00000000005EC000-memory.dmp
                      Filesize

                      624KB

                    • memory/3052-119-0x0000000000000000-mapping.dmp
                    • memory/3052-131-0x00000000005F0000-0x00000000005F1000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-136-0x0000000005050000-0x0000000005051000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-134-0x0000000004B70000-0x000000000506E000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/3092-135-0x0000000004DA0000-0x0000000004DA1000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-137-0x0000000005CE0000-0x0000000005CE1000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-117-0x0000000000000000-mapping.dmp
                    • memory/3092-124-0x0000000004C90000-0x0000000004C91000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-123-0x0000000005070000-0x0000000005071000-memory.dmp
                      Filesize

                      4KB

                    • memory/3092-121-0x00000000002F0000-0x00000000002F1000-memory.dmp
                      Filesize

                      4KB

                    • memory/3160-130-0x0000000000000000-mapping.dmp
                    • memory/3332-187-0x0000000000000000-mapping.dmp
                    • memory/3356-180-0x0000000000400000-0x0000000000420000-memory.dmp
                      Filesize

                      128KB

                    • memory/3356-184-0x000000000041A1F8-mapping.dmp
                    • memory/3576-138-0x0000000000000000-mapping.dmp
                    • memory/3788-152-0x0000000000000000-mapping.dmp
                    • memory/3820-150-0x0000000000000000-mapping.dmp
                    • memory/3992-133-0x0000000001BF0000-0x0000000001BF1000-memory.dmp
                      Filesize

                      4KB

                    • memory/4052-125-0x0000000000100000-0x0000000000120000-memory.dmp
                      Filesize

                      128KB

                    • memory/4052-129-0x000000000011A1F8-mapping.dmp