Analysis

  • max time kernel
    5s
  • max time network
    123s
  • 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 19:39

General

  • Target

    e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe

  • Size

    2.0MB

  • MD5

    b303cf21786ffb3a53bcabd6e4f0c810

  • SHA1

    213fa018f83eb7017cf22da7679df37b055ddf98

  • SHA256

    e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665

  • SHA512

    8d1d3b2a7653a2c037725d068792e532f18f8d407ed97f7aa1b4b2ba9492d20cbf145a13f8238f1be8aefa875acdb8bbb6f07a898e1d9d3a7b5d02f85c024daf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs: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 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\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe
    "C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.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:4512
    • 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:2336
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 552
          3⤵
          • Program crash
          PID:4824
      • 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:4304
        • 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:5112
        • 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:5028
          • 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:2952
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bFkB5igy9Hog.bat" "
            4⤵
              PID:4364
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4072
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2120
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4456
                    • 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:3816
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\U3EOhebkrZlQ.bat" "
                      6⤵
                        PID:3796
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4824
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4688
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 2212
                          6⤵
                          • Program crash
                          PID:1656
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 2252
                      4⤵
                      • Program crash
                      PID:5032
                • C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe
                  "C:\Users\Admin\AppData\Local\Temp\e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1812
                • 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:2228
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2336 -ip 2336
                1⤵
                  PID:1988
                • 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:2592
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3668
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 520
                            3⤵
                            • Program crash
                            PID:4396
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:2748
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:1344
                            • 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:1600
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2592 -ip 2592
                            1⤵
                              PID:3392
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5028 -ip 5028
                              1⤵
                                PID:720
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4456 -ip 4456
                                1⤵
                                  PID:2264
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:720
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3364

                                    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\U3EOhebkrZlQ.bat

                                      Filesize

                                      208B

                                      MD5

                                      8afb51839a0225c997ba44d92ee1652a

                                      SHA1

                                      82fc9375e1a4cd25b51d8155e415c0514448be1e

                                      SHA256

                                      bd7c4f4185477eea36de60a61787641fbe75e1c2d9955a8c82837db0c3714c33

                                      SHA512

                                      0491494d53c28bcc15197c8033d771db4282a027973e6f0d7c7d09509c1969d60bf1566cf9bc40a8f9ff8f6ce9c12b16f575badeda73dd0591091f76294ae6e6

                                    • C:\Users\Admin\AppData\Local\Temp\bFkB5igy9Hog.bat

                                      Filesize

                                      208B

                                      MD5

                                      6b5e701ce0e5ff6da4f643aa55cce8f1

                                      SHA1

                                      688e3e6f327c9655a865581ee85cf432b4a4e4c2

                                      SHA256

                                      d0e481f3605da675ca62b317385f6102450c5d7951cf23e048e1abac34c952a4

                                      SHA512

                                      1d417b2aa5691f5dc5bcc38ffb4d65b78de7fca98d88ec715f3d89467e0dba3d0b98d01a19429781019ecf39b28a0e76cc62cb2b4fd592adf1c5826ecc8b6237

                                    • 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

                                      821944ee2a30d1d35ab52e4c460c030d

                                      SHA1

                                      e75472970fef08e12f64e04f274ec5e4321a9b5c

                                      SHA256

                                      c03443bda9153d91882280a2e71d679cec96f0b6cbb8d1f8518b1039e6cfd188

                                      SHA512

                                      bad3802a8cee815dc05a311177e318ff0853de95779789f8161b928d3ade28f144983bb5c6c064bc1bec6a54513bd5769e181347addd3e1dd8c0c60cc573de81

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      2072064f185ada70bb22660bb00f202a

                                      SHA1

                                      c9ab780f64a995a0fdb6880383bec1f841f972c5

                                      SHA256

                                      8ee44814fede3bf0e5d25816fa0a07bff9d7586f40792f19065ba924aafa50a6

                                      SHA512

                                      9892151d9921b7b4cb48cb4e792401343aebb4da235f71b164eab8ba7748f89074ab452dd4a7b5559cbd9b6b0a409dc3c85b9ae4081d3db9f6fbc9182625334f

                                    • memory/1344-72-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1344-66-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1812-27-0x0000000000DA0000-0x0000000000DC0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1812-19-0x0000000000DA0000-0x0000000000DC0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4304-36-0x0000000006720000-0x000000000675C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4304-35-0x0000000005710000-0x0000000005722000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4304-34-0x00000000055A0000-0x0000000005606000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4304-33-0x00000000054C0000-0x0000000005552000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4304-32-0x0000000005B50000-0x00000000060F4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4304-31-0x0000000000BA0000-0x0000000000BFE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4512-18-0x0000000003620000-0x0000000003621000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/5028-44-0x0000000006B20000-0x0000000006B2A000-memory.dmp

                                      Filesize

                                      40KB