Analysis

  • max time kernel
    8s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    09-05-2021 19:15

General

  • Target

    cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39.exe

  • Size

    2.0MB

  • MD5

    d6a917b7a12fc9bfa70caa565d6f1482

  • SHA1

    4ad5d92737579b3e63324724f71a7ee64656f0f7

  • SHA256

    cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39

  • SHA512

    7a91fcd50c9e7f0c93e9a3e1b720edf6726fd9af457d5327a1d4fa80768290236b54ded9b29eb3373c2d2e2e864c33de48e8886a1928232aa558c4142ed68098

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\cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39.exe
    "C:\Users\Admin\AppData\Local\Temp\cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1824
    • 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:1056
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1772
    • 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:1592
      • 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:4036
      • 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:1208
        • 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:3412
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\P8ic4PKpUG4w.bat" "
          4⤵
            PID:3396
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:1520
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:3900
              • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                5⤵
                  PID:3920
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 2100
                4⤵
                • Program crash
                PID:3328
          • C:\Users\Admin\AppData\Local\Temp\cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39.exe
            "C:\Users\Admin\AppData\Local\Temp\cafe917a33c91ded12d6e6d9c0163a6cb1d4220e0ea38804337821362a4b9e39.exe"
            2⤵
              PID:2352
            • 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:3624
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            1⤵
              PID:2184
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                  PID:3896
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    3⤵
                      PID:1196
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    2⤵
                      PID:3940
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      2⤵
                        PID:2276
                      • 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:3796

                    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\P8ic4PKpUG4w.bat
                      MD5

                      52015ad66c0e8e875cdc28d394bd29d7

                      SHA1

                      d54f3ab50ce0526f467b6e1f258630a7f3680e33

                      SHA256

                      a92b5b24f522405c1302532166fb8b50df809b250dc3debbb7df1a41efefa67b

                      SHA512

                      d625430beb458a4dc989ba554177133da5142abbb616321b25307293ff676cdebf2f403a7e91e102c071b7be8fc945da7b8a1e0dbafdd38bd7c681121bacc6dc

                    • 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

                      b77dc24fea90d316c7af309df014aa93

                      SHA1

                      deef5f4e5cdefd2ce8333af787d5d7449e509ce1

                      SHA256

                      e20fa6228b0613617aa94ca42fdc25466412bed0e2d1bf4febac19e5c5b371c2

                      SHA512

                      fd5befbd945a22fa70253686ad54799782ebc9353284a133eab6a7e1666763578532c0c67acae047d33d51919e0d88fbc6acffc716dad8811cbb44ae2bc4d2fc

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

                      b77dc24fea90d316c7af309df014aa93

                      SHA1

                      deef5f4e5cdefd2ce8333af787d5d7449e509ce1

                      SHA256

                      e20fa6228b0613617aa94ca42fdc25466412bed0e2d1bf4febac19e5c5b371c2

                      SHA512

                      fd5befbd945a22fa70253686ad54799782ebc9353284a133eab6a7e1666763578532c0c67acae047d33d51919e0d88fbc6acffc716dad8811cbb44ae2bc4d2fc

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

                      b77dc24fea90d316c7af309df014aa93

                      SHA1

                      deef5f4e5cdefd2ce8333af787d5d7449e509ce1

                      SHA256

                      e20fa6228b0613617aa94ca42fdc25466412bed0e2d1bf4febac19e5c5b371c2

                      SHA512

                      fd5befbd945a22fa70253686ad54799782ebc9353284a133eab6a7e1666763578532c0c67acae047d33d51919e0d88fbc6acffc716dad8811cbb44ae2bc4d2fc

                    • memory/1056-114-0x0000000000000000-mapping.dmp
                    • memory/1196-179-0x0000000000460000-0x00000000004FC000-memory.dmp
                      Filesize

                      624KB

                    • memory/1196-168-0x0000000000000000-mapping.dmp
                    • memory/1196-178-0x0000000000500000-0x0000000000501000-memory.dmp
                      Filesize

                      4KB

                    • memory/1208-146-0x0000000004A80000-0x0000000004F7E000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/1208-151-0x0000000006250000-0x0000000006251000-memory.dmp
                      Filesize

                      4KB

                    • memory/1208-139-0x0000000000000000-mapping.dmp
                    • memory/1520-154-0x0000000000000000-mapping.dmp
                    • memory/1592-134-0x0000000005010000-0x000000000550E000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/1592-133-0x0000000005010000-0x0000000005011000-memory.dmp
                      Filesize

                      4KB

                    • memory/1592-136-0x00000000054E0000-0x00000000054E1000-memory.dmp
                      Filesize

                      4KB

                    • memory/1592-117-0x0000000000000000-mapping.dmp
                    • memory/1592-128-0x0000000005510000-0x0000000005511000-memory.dmp
                      Filesize

                      4KB

                    • memory/1592-137-0x00000000060E0000-0x00000000060E1000-memory.dmp
                      Filesize

                      4KB

                    • memory/1592-135-0x0000000005120000-0x0000000005121000-memory.dmp
                      Filesize

                      4KB

                    • memory/1592-124-0x00000000006D0000-0x00000000006D1000-memory.dmp
                      Filesize

                      4KB

                    • memory/1772-118-0x0000000000000000-mapping.dmp
                    • memory/1772-130-0x0000000000810000-0x0000000000811000-memory.dmp
                      Filesize

                      4KB

                    • memory/1772-132-0x0000000000770000-0x000000000080C000-memory.dmp
                      Filesize

                      624KB

                    • memory/1824-129-0x0000000000F30000-0x0000000000F53000-memory.dmp
                      Filesize

                      140KB

                    • memory/2184-186-0x0000000000E30000-0x0000000000E31000-memory.dmp
                      Filesize

                      4KB

                    • memory/2276-184-0x000000000041A1F8-mapping.dmp
                    • memory/2352-127-0x000000000041A1F8-mapping.dmp
                    • memory/2352-121-0x0000000000400000-0x0000000000420000-memory.dmp
                      Filesize

                      128KB

                    • memory/3396-152-0x0000000000000000-mapping.dmp
                    • memory/3412-150-0x0000000000000000-mapping.dmp
                    • memory/3624-131-0x0000000000000000-mapping.dmp
                    • memory/3796-187-0x0000000000000000-mapping.dmp
                    • memory/3896-166-0x0000000000000000-mapping.dmp
                    • memory/3900-155-0x0000000000000000-mapping.dmp
                    • memory/3920-162-0x00000000049D0000-0x0000000004ECE000-memory.dmp
                      Filesize

                      5.0MB

                    • memory/3920-156-0x0000000000000000-mapping.dmp
                    • memory/3940-169-0x0000000000000000-mapping.dmp
                    • memory/3940-177-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
                      Filesize

                      4KB

                    • memory/4036-138-0x0000000000000000-mapping.dmp