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Analysis

  • max time kernel
    5s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/08/2024, 14:36

General

  • Target

    3b412a971394882cb2d7be867ab7af20N.exe

  • Size

    2.0MB

  • MD5

    3b412a971394882cb2d7be867ab7af20

  • SHA1

    2234683a124d00e68170182b49c510f381252b66

  • SHA256

    c5b5763bad6c7e17bd8a9943267cc5ff022c06a66cb95736bd77b105f84164e1

  • SHA512

    c4ce2cfb0b2adee7ff2aba84d790b621f2de5c02793238a9cae4d90ac5c06eda248d908276477b5e59ebbe5a5183357e1ca24c4d1573d53f1d91aa47712feed4

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYc:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y2

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\3b412a971394882cb2d7be867ab7af20N.exe
    "C:\Users\Admin\AppData\Local\Temp\3b412a971394882cb2d7be867ab7af20N.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:3672
    • 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:2408
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4368
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 548
          3⤵
          • Program crash
          PID:2488
      • 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:4660
        • 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:1384
        • 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:3016
          • 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:856
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yzFLAhongKrw.bat" "
            4⤵
              PID:1004
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3304
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:348
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4140
                    • 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:1940
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kLhmJ98c6vCX.bat" "
                      6⤵
                        PID:3232
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4744
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4212
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1996
                          6⤵
                          • Program crash
                          PID:1332
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 2252
                      4⤵
                      • Program crash
                      PID:5100
                • C:\Users\Admin\AppData\Local\Temp\3b412a971394882cb2d7be867ab7af20N.exe
                  "C:\Users\Admin\AppData\Local\Temp\3b412a971394882cb2d7be867ab7af20N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1928
                • 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:1332
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2408 -ip 2408
                1⤵
                  PID:4752
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:1348
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:3748
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1136
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 520
                            3⤵
                            • Program crash
                            PID:4228
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:2196
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:2980
                            • 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:4336
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3748 -ip 3748
                            1⤵
                              PID:4212
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3016 -ip 3016
                              1⤵
                                PID:628
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4140 -ip 4140
                                1⤵
                                  PID:3964
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:688
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4660

                                    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\kLhmJ98c6vCX.bat

                                      Filesize

                                      208B

                                      MD5

                                      1c5f5ae38b251a4e1c096264a5d31cef

                                      SHA1

                                      890f1abdfd288f980b0398949ad2fd1515325717

                                      SHA256

                                      1340dda5681fbefbc6ccd4ca95849a7bf06e6322df95cd3c701920635084b0a3

                                      SHA512

                                      b89dfaabc991f88efdd40526efe50c5eef167928ba48cdf63f9acb2c5410c70c0fbe0066feff56a5eeb5a857b766332af45d258feaaa70a02ed67349f2d8a148

                                    • 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\yzFLAhongKrw.bat

                                      Filesize

                                      208B

                                      MD5

                                      560a2e5834bfe0e972121174c9451a9f

                                      SHA1

                                      b4dcaeb83f003298a721bc88930348942a04efb4

                                      SHA256

                                      a1df08ca681aa658cd4a81cf46140961c915f7f8fffaafc7ad7b91eaa6caea16

                                      SHA512

                                      35fafa2249c14561950f65d47261434499c8d5584c8845dc6a9868e67a06b0f5eaaeedda2531a1cc45b810b7f47360c1ce8919e3489e1fb902cbd2b5fe7de13e

                                    • C:\Users\Admin\AppData\Roaming\Logs\08-27-2024

                                      Filesize

                                      224B

                                      MD5

                                      30ffa231d3a340b32410b94fa34558a6

                                      SHA1

                                      8996cb1350a03032a8d4c561d7c8b6b4e9c4586a

                                      SHA256

                                      372102c33397664979edb8c19e8dec339204b354fe6aef58fbf6a3dc31e00dc4

                                      SHA512

                                      79e54e141d94bf79851d6fb922dc5ea4bfdb4b1ec74b5b22eed608bb95ae7bf0390998199d9ee7270004b27eae0109f437942cb912627fdaef40bae4b3e9b9b0

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      ab6a467ec26c7d81bbcf4b383f96810c

                                      SHA1

                                      157869a290404e7a3973d57632b2271ec009926c

                                      SHA256

                                      3432fd9b25f96d9f464cb332843982442c9f78c8dc916278da6075dfc651fd82

                                      SHA512

                                      8e5c0e6aaa52729323de31feddf72010a9342a1b598f96aa7dd616f3b7afc663a628e65b0c2c3cb86337c7fe2507494ba802ff6088ebbc0c77262da69ff5320c

                                    • memory/1928-20-0x00000000005A0000-0x00000000005C0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1928-28-0x00000000005A0000-0x00000000005C0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2980-73-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2980-67-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3016-45-0x00000000066C0000-0x00000000066CA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/3672-18-0x0000000003C00000-0x0000000003C01000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4660-29-0x000000007352E000-0x000000007352F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4660-37-0x00000000060A0000-0x00000000060DC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4660-36-0x0000000005B60000-0x0000000005B72000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4660-35-0x0000000004E40000-0x0000000004EA6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4660-34-0x0000000004DA0000-0x0000000004E32000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4660-33-0x0000000005250000-0x00000000057F4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4660-30-0x0000000000430000-0x000000000048E000-memory.dmp

                                      Filesize

                                      376KB