Analysis

  • max time kernel
    12s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-07-2024 05:10

General

  • Target

    decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240.exe

  • Size

    2.0MB

  • MD5

    684e2cd598e427e983c43223dbf709f6

  • SHA1

    d47e974309bced2c9b0986ffa4e33e24ddd3526c

  • SHA256

    decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240

  • SHA512

    e7bc861bc3aaa23533cb1d97fa35095cffb95c21dd58c5d280c559d335f8f19b40743b42ea739600a0ab2e1ab42228c75c25218903bd03ced97ffb77b6c464fb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY2:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yk

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 2 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 2 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 5 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 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240.exe
    "C:\Users\Admin\AppData\Local\Temp\decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240.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:4720
    • 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:3484
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 540
          3⤵
          • Program crash
          PID:4004
      • 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
        PID:2996
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1508
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:4588
            • 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⤵
              • Scheduled Task/Job: Scheduled Task
              PID:3780
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\nk2n4YQ59dai.bat" "
              4⤵
                PID:4092
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:4408
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:4020
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:4924
                      • 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:4184
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mL4XpbZH1f9F.bat" "
                        6⤵
                          PID:3832
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            7⤵
                              PID:4752
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              7⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:2588
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              7⤵
                                PID:4948
                                • 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
                                  8⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:2456
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 2248
                              6⤵
                              • Program crash
                              PID:3352
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 2296
                          4⤵
                          • Program crash
                          PID:2524
                    • C:\Users\Admin\AppData\Local\Temp\decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240.exe
                      "C:\Users\Admin\AppData\Local\Temp\decfd015d1e4b9f614c7a17b56de0e66b709e45efabc188d701c979d8c3b5240.exe"
                      2⤵
                      • System Location Discovery: System Language Discovery
                      PID:5028
                    • 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:2512
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3484 -ip 3484
                    1⤵
                      PID:2316
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:5020
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:2492
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4180
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 520
                                3⤵
                                • Program crash
                                PID:4960
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3936
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:208
                                • 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:1012
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2492 -ip 2492
                                1⤵
                                  PID:3552
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4588 -ip 4588
                                  1⤵
                                    PID:1236
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4924 -ip 4924
                                    1⤵
                                      PID:4572
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:1536
                                      • C:\Windows\system32\dwm.exe
                                        "dwm.exe"
                                        1⤵
                                          PID:1180
                                        • C:\Windows\system32\sihost.exe
                                          sihost.exe
                                          1⤵
                                            PID:3008
                                          • C:\Windows\system32\sihost.exe
                                            sihost.exe
                                            1⤵
                                              PID:4184
                                            • C:\Windows\system32\sihost.exe
                                              sihost.exe
                                              1⤵
                                                PID:3960

                                              Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              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\mL4XpbZH1f9F.bat

                                                Filesize

                                                208B

                                                MD5

                                                c5c18fd4ef71808451ff5ed42c37ee6f

                                                SHA1

                                                2d82771f097f313171d53055eb5044f9f7135382

                                                SHA256

                                                77326ddfb48701f6c5c39118b5279029cb980124431d15008e7fdecbab9607ca

                                                SHA512

                                                849aedd743ab12389b945f468642a94d87593e7454e49d279517f3f60550f70e99723117506ce8f5ad6341317c2acc637d421463f831ddf42ead418056f154fd

                                              • C:\Users\Admin\AppData\Local\Temp\nk2n4YQ59dai.bat

                                                Filesize

                                                208B

                                                MD5

                                                b753973cffb975fb5c31dfdb288bf403

                                                SHA1

                                                f0ea9f4411ab79825681233b0fcce90c60272589

                                                SHA256

                                                7f32b2e7705b2d96837e6481c51969902ae5e4b42faef24529c7c46556eaa4fc

                                                SHA512

                                                3da75687bb927030adc0438fb69ced40974b85dd58ad35a43533d4590cc4e8ac1ed113c34d68b93ee46d0213099a0eb1bcfc2c6a9ac14ccfcd77950274080387

                                              • 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\07-28-2024

                                                Filesize

                                                224B

                                                MD5

                                                75e1f17dc3a8c7c4f0715ff1d2b4ff39

                                                SHA1

                                                2cc268598af530cdfd82d1c1f8a57350dce40952

                                                SHA256

                                                c5fc1b84a38932c7017727dba0867efcadbf97946bed05775d201412ef149150

                                                SHA512

                                                c57ec60aabedc7c5ad6cbf1a19c0289b9a07910b52aaaea1ff73824e38d597160358831c4ba8241ac8a0d7aba3c9cca45d787bf12faa727b4d8451ff1c592a46

                                              • C:\Users\Admin\AppData\Roaming\Logs\07-28-2024

                                                Filesize

                                                224B

                                                MD5

                                                aca3fcb0772356d3a9d12555798db4ee

                                                SHA1

                                                d8f1f3add10d3196dfdfc992418f50b660da55b2

                                                SHA256

                                                71a5413fcfe3dc9b2bd4b26334187cb83e546a308a543dd2edbda8e849dc8f5d

                                                SHA512

                                                ecbf95cef4338c6bb50cc4c32063b0253f9ac8fe41688bdf5197a1a08b0a0ab4a8d314e7f72e98850d7cdb10d40929f9f74ad854cfe2c33658c5ce066b042788

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

                                                Filesize

                                                2.0MB

                                                MD5

                                                0b169d0d49736796037a30d8100bcfe1

                                                SHA1

                                                6330ca55551f8436d4c64fd687a5a3983a0578f4

                                                SHA256

                                                78b15f6a6c8879269048cd2a6789f11ca39fb5777fe94f2fc39911eb38069c21

                                                SHA512

                                                d3c72073fd0cd14aa7a681015e56e3600b6e8548f466e9f6855eb3881f2e2afb3bb990380ba512fe4aa02e87e30743f0602716a083c454f75f35dc905b612c01

                                              • memory/208-72-0x0000000000400000-0x0000000000420000-memory.dmp

                                                Filesize

                                                128KB

                                              • memory/208-66-0x0000000000400000-0x0000000000420000-memory.dmp

                                                Filesize

                                                128KB

                                              • memory/2996-31-0x0000000000D90000-0x0000000000DEE000-memory.dmp

                                                Filesize

                                                376KB

                                              • memory/2996-36-0x0000000006900000-0x000000000693C000-memory.dmp

                                                Filesize

                                                240KB

                                              • memory/2996-35-0x0000000005C10000-0x0000000005C22000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/2996-34-0x0000000005710000-0x0000000005776000-memory.dmp

                                                Filesize

                                                408KB

                                              • memory/2996-33-0x00000000057B0000-0x0000000005842000-memory.dmp

                                                Filesize

                                                584KB

                                              • memory/2996-32-0x0000000005C30000-0x00000000061D4000-memory.dmp

                                                Filesize

                                                5.6MB

                                              • memory/4588-44-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

                                                Filesize

                                                40KB

                                              • memory/4720-18-0x0000000004270000-0x0000000004271000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/5028-27-0x0000000000A90000-0x0000000000AB0000-memory.dmp

                                                Filesize

                                                128KB

                                              • memory/5028-19-0x0000000000A90000-0x0000000000AB0000-memory.dmp

                                                Filesize

                                                128KB