Analysis

  • max time kernel
    5s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2024 01:33

General

  • Target

    74c78834a7cc678d1d894b34616cd540N.exe

  • Size

    2.0MB

  • MD5

    74c78834a7cc678d1d894b34616cd540

  • SHA1

    2f44f3133de7143a241898d9e108aea1622705d6

  • SHA256

    680fd298f66fddbefeb7bcab0d39433549f59549faf8cdb251f8948a5fb8b1db

  • SHA512

    510381143f23262db4f153655badde2bb6c29859014e12f511c35b65d0b46d82920fd90a8c0383c1c9e766b043d09a95b203270bc2e0e79fd4cef045e9cea94a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYL:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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\74c78834a7cc678d1d894b34616cd540N.exe
    "C:\Users\Admin\AppData\Local\Temp\74c78834a7cc678d1d894b34616cd540N.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:3184
    • 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:2888
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1368
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 556
          3⤵
          • Program crash
          PID:3020
      • 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:5100
        • 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:372
        • 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:1868
          • 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:4752
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jaQu8WEp0HLj.bat" "
            4⤵
              PID:4016
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1052
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2548
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1680
                    • 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:2100
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LKMW35HAGQj2.bat" "
                      6⤵
                        PID:2984
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:5100
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2532
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 2240
                          6⤵
                          • Program crash
                          PID:1248
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 2284
                      4⤵
                      • Program crash
                      PID:4280
                • C:\Users\Admin\AppData\Local\Temp\74c78834a7cc678d1d894b34616cd540N.exe
                  "C:\Users\Admin\AppData\Local\Temp\74c78834a7cc678d1d894b34616cd540N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2156
                • 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:4088
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2888 -ip 2888
                1⤵
                  PID:2100
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1868 -ip 1868
                  1⤵
                    PID:1372
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3556
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4636
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:5020
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 528
                              3⤵
                              • Program crash
                              PID:5032
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3588
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3888
                              • 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:1004
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4636 -ip 4636
                              1⤵
                                PID:4032
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1680 -ip 1680
                                1⤵
                                  PID:4268
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:2364
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3840

                                    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\LKMW35HAGQj2.bat

                                      Filesize

                                      208B

                                      MD5

                                      a127d1bfdb7c0950f91e0367efcb1a27

                                      SHA1

                                      62f7216d51ee0d52ead0ef08e91e7be0c092b1e1

                                      SHA256

                                      97855c399bb44ea8ccb123fcb09e57728a89a022aad8b827ce6d1aaa299b1e00

                                      SHA512

                                      5fc811ad521ea0ef8c557dd8430cb778a488d4e71a5ab97f1c74b09e16281d4a9ed68f4576d6c8cd8b2e889aa4cd53851331b06577ef7cf929ae23a38c4687ee

                                    • C:\Users\Admin\AppData\Local\Temp\jaQu8WEp0HLj.bat

                                      Filesize

                                      208B

                                      MD5

                                      b2070217c7e2b67364994ac36a70b51c

                                      SHA1

                                      969ca99ba0bd960c8e8c8dadb9d252f415fc327a

                                      SHA256

                                      14ff28721ec3a5ff746b8753d6c13f5ab399475d75168ec4186a91f70f6df917

                                      SHA512

                                      07ce2c2caa03dc03c3d4eacbed44604fa0a91d6b00377180eee53f5cd914f8f731e88f4603768b7875f7bcc1a18c4be24db655fd5b8c0b3ce4ceae61c150d8c7

                                    • 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\Roaming\Logs\08-25-2024

                                      Filesize

                                      224B

                                      MD5

                                      452dde54b56d8073fb92b5d37b67c304

                                      SHA1

                                      b657f1942286ad4403729ba7e8e688ff6637f0a6

                                      SHA256

                                      e1e62c90d73667fa625fed88765afaf5531ad9e32091a184b78c8f0e1dad6167

                                      SHA512

                                      50d506818050dce6cd60e68830bedb76ff390364d958c58c0d1a458d79b35e6b32a1d585d623c6ed375533661f3626af07f6d4e8e445a0298e005f73c506327a

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      b19663514d14642d71a4b58feccb9565

                                      SHA1

                                      7115e77ffd2fd085f79883d3d042f3e767d1ca55

                                      SHA256

                                      f55bd9f4a8134a33b82cffa3dcad103f5b1683203742304473ecebdf7cd2f04a

                                      SHA512

                                      4fce2c421cfc2aa154dd5cd57b1ad6217b1cb8e48c40dd89b6c05fdf2b999e491e56e30968e28d66631b4503a339719c2188d736c60b53ff6f783089258d2810

                                    • memory/1868-45-0x0000000006A70000-0x0000000006A7A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2156-20-0x0000000000140000-0x0000000000160000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2156-28-0x0000000000140000-0x0000000000160000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3184-19-0x00000000023A0000-0x00000000023A1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3888-80-0x0000000001630000-0x0000000001650000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3888-74-0x0000000001630000-0x0000000001650000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/5100-29-0x00000000733FE000-0x00000000733FF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/5100-37-0x00000000066F0000-0x000000000672C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/5100-36-0x00000000061B0000-0x00000000061C2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/5100-35-0x00000000054A0000-0x0000000005506000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/5100-34-0x0000000005560000-0x00000000055F2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/5100-33-0x00000000059D0000-0x0000000005F74000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/5100-30-0x0000000000B80000-0x0000000000BDE000-memory.dmp

                                      Filesize

                                      376KB