Analysis

  • max time kernel
    5s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 05:31

General

  • Target

    e6ecad94f052f645449e8b37aba412d0N.exe

  • Size

    2.0MB

  • MD5

    e6ecad94f052f645449e8b37aba412d0

  • SHA1

    a1701f1ac87bfb58826c305d0138ec06912a9471

  • SHA256

    f5c86571c472e01732043fe7b164cd0d5e5ead52b247dbb1c5eaf5a394e89015

  • SHA512

    e8f5fea4e927db8812200e3a20a9f2aaa9e7b783ef564bde98bc2d7513e6b5bf090ff04bd6a8ae964b9dff9547c4b71c2f9b6f27ca4091c9a434356074257c3e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYC:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg

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 5 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\e6ecad94f052f645449e8b37aba412d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\e6ecad94f052f645449e8b37aba412d0N.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:4704
    • 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:5080
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 552
          3⤵
          • Program crash
          PID:3168
      • 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:2704
        • 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:768
        • 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:4272
          • 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:2972
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\e3N1MRtFXOFe.bat" "
            4⤵
              PID:4264
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4392
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4144
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:5104
                    • 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:3924
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Pn0Ll15mu245.bat" "
                      6⤵
                        PID:4944
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4416
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4268
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2012
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 804
                                8⤵
                                • Program crash
                                PID:4940
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 2228
                            6⤵
                            • Program crash
                            PID:2908
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 2244
                        4⤵
                        • Program crash
                        PID:4996
                  • C:\Users\Admin\AppData\Local\Temp\e6ecad94f052f645449e8b37aba412d0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\e6ecad94f052f645449e8b37aba412d0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4232
                  • 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:4492
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5080 -ip 5080
                  1⤵
                    PID:3924
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4272 -ip 4272
                    1⤵
                      PID:4944
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:1008
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4936
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:1840
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 520
                                3⤵
                                • Program crash
                                PID:1456
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1316
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:944
                                • 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:2260
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4936 -ip 4936
                                1⤵
                                  PID:3720
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 5104 -ip 5104
                                  1⤵
                                    PID:4392
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2012 -ip 2012
                                    1⤵
                                      PID:1980
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:8
                                      • C:\Windows\system32\dwm.exe
                                        "dwm.exe"
                                        1⤵
                                          PID:756
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:5048
                                          • C:\Windows\system32\dwm.exe
                                            "dwm.exe"
                                            1⤵
                                              PID:2388
                                            • C:\Windows\system32\dwm.exe
                                              "dwm.exe"
                                              1⤵
                                                PID:2704
                                              • C:\Windows\system32\dwm.exe
                                                "dwm.exe"
                                                1⤵
                                                  PID:864
                                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                  1⤵
                                                    PID:404
                                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                    1⤵
                                                      PID:4792

                                                    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\Pn0Ll15mu245.bat

                                                      Filesize

                                                      208B

                                                      MD5

                                                      68807ecda6f91b036c26d43398104b89

                                                      SHA1

                                                      139b64457df3e5b340c1d9749904c2fe6410b9f1

                                                      SHA256

                                                      30f55d3ae6e6404e1ef71916affc420ea6abbb80bfa29eb6b27f7472017f065f

                                                      SHA512

                                                      e6422acc9ddb7adb4dc69c70a38d00e4d3eb8d6700e9bdc038c817378415086e568c0602c436887b6c38e545901e008c1477f8a2476974ea1062f54bc626c569

                                                    • C:\Users\Admin\AppData\Local\Temp\e3N1MRtFXOFe.bat

                                                      Filesize

                                                      208B

                                                      MD5

                                                      812907ff1eca45018fd2c723813a505f

                                                      SHA1

                                                      e45d24e2d6415726fcf507763b8a92a1c41f2856

                                                      SHA256

                                                      13e5bde1e7f83c5f5c5370bbcdb7440c60bae46e81d5857ba05ef7b26faf3c2b

                                                      SHA512

                                                      66c6092a8e13198d71b60ac4026952d06d28f8cd525b73bd490e210b1632e0bc6281eabe5c81b60ca9b70d3f7006b4eadf5651f2f170030a713581bf3b78a569

                                                    • 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\08-21-2024

                                                      Filesize

                                                      224B

                                                      MD5

                                                      4916482b91560066e25ae7fc59cfb628

                                                      SHA1

                                                      56e1fbd423974297af07cacdaa9f4efffc5dca21

                                                      SHA256

                                                      44c4a4c09bd5eb81574dc67157eae8391ca9475fd0b00e528e48ab10a3d75521

                                                      SHA512

                                                      8d793f38324cf4d0dd621f62179e6de00a4199fc677da6ec632252cf153ff1ef28b8d29f12bb8c2b712de6e8d2e09051262bebf10942a6dad80c35b05f3c6529

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

                                                      Filesize

                                                      2.0MB

                                                      MD5

                                                      557824816316b9b6ef97959f2542ea38

                                                      SHA1

                                                      cd4bd752e12bad17acee9c9796d110b43cf4560c

                                                      SHA256

                                                      574164371dcc52d8c664f1e230cb90bbe37a0944300187bcc96d00497d6fc46f

                                                      SHA512

                                                      355f619e8d093e4c891fac53fd65daef4caf7b68651fcd620c1d2cb5b1ef3a57a912deff323d529159a360c49107a7ae0eb6ee553d1d530a7f74c742cc2130c3

                                                    • memory/944-74-0x0000000000490000-0x00000000004B0000-memory.dmp

                                                      Filesize

                                                      128KB

                                                    • memory/944-80-0x0000000000490000-0x00000000004B0000-memory.dmp

                                                      Filesize

                                                      128KB

                                                    • memory/2704-29-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

                                                      Filesize

                                                      4KB

                                                    • memory/2704-36-0x0000000005AA0000-0x0000000005AB2000-memory.dmp

                                                      Filesize

                                                      72KB

                                                    • memory/2704-37-0x00000000067E0000-0x000000000681C000-memory.dmp

                                                      Filesize

                                                      240KB

                                                    • memory/2704-35-0x0000000005590000-0x00000000055F6000-memory.dmp

                                                      Filesize

                                                      408KB

                                                    • memory/2704-34-0x0000000005640000-0x00000000056D2000-memory.dmp

                                                      Filesize

                                                      584KB

                                                    • memory/2704-33-0x0000000005AD0000-0x0000000006074000-memory.dmp

                                                      Filesize

                                                      5.6MB

                                                    • memory/2704-30-0x0000000000C50000-0x0000000000CAE000-memory.dmp

                                                      Filesize

                                                      376KB

                                                    • memory/4232-28-0x00000000008C0000-0x00000000008E0000-memory.dmp

                                                      Filesize

                                                      128KB

                                                    • memory/4232-20-0x00000000008C0000-0x00000000008E0000-memory.dmp

                                                      Filesize

                                                      128KB

                                                    • memory/4272-45-0x0000000006A80000-0x0000000006A8A000-memory.dmp

                                                      Filesize

                                                      40KB

                                                    • memory/4704-19-0x0000000004460000-0x0000000004461000-memory.dmp

                                                      Filesize

                                                      4KB