Analysis

  • max time kernel
    4s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 12:19

General

  • Target

    42dceb3d5a022127275e06b244d4c450N.exe

  • Size

    2.0MB

  • MD5

    42dceb3d5a022127275e06b244d4c450

  • SHA1

    574fd2f59de60497c600ab310c8bff85afc0a6eb

  • SHA256

    51a3616542477bb0c9a9cc0529e070782f8dd41c80e2ff2ea5dbdce15a7fe31d

  • SHA512

    eb753850832206deb9dc528dce4f3535c53639461d954a3634f549ca72f8805b19a8dfcd2e57f1182cf04819006e0437f9f74c78514b7da4b589c2d496fb82a2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYo: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 3 IoCs

    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 6 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42dceb3d5a022127275e06b244d4c450N.exe
    "C:\Users\Admin\AppData\Local\Temp\42dceb3d5a022127275e06b244d4c450N.exe"
    1⤵
    • Quasar RAT
    • 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:2076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2020
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 548
          3⤵
          • Program crash
          PID:1152
      • 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:3448
        • 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:4272
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:4740
            • 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:820
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cDZgCIO9GaB2.bat" "
              4⤵
                PID:2108
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:2984
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:1316
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:1728
                      • 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:3204
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\L5JyQeMBkRgJ.bat" "
                        6⤵
                          PID:5076
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            7⤵
                              PID:4972
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              7⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:4648
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              7⤵
                                PID:2756
                                • 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:4372
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1728 -s 2244
                              6⤵
                              • Program crash
                              PID:1960
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 2248
                          4⤵
                          • Program crash
                          PID:4528
                    • C:\Users\Admin\AppData\Local\Temp\42dceb3d5a022127275e06b244d4c450N.exe
                      "C:\Users\Admin\AppData\Local\Temp\42dceb3d5a022127275e06b244d4c450N.exe"
                      2⤵
                      • System Location Discovery: System Language Discovery
                      PID:1264
                    • 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:880
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2076 -ip 2076
                    1⤵
                      PID:3168
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4344,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=4416 /prefetch:8
                      1⤵
                        PID:4276
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4740 -ip 4740
                        1⤵
                          PID:4696
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          1⤵
                            PID:3104
                            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                              2⤵
                                PID:2948
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k
                                  3⤵
                                    PID:4156
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 520
                                    3⤵
                                    • Program crash
                                    PID:3028
                                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                                  2⤵
                                    PID:3548
                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                    2⤵
                                      PID:4888
                                    • 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:2584
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2948 -ip 2948
                                    1⤵
                                      PID:2568
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1728 -ip 1728
                                      1⤵
                                        PID:4692

                                      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\L5JyQeMBkRgJ.bat

                                        Filesize

                                        208B

                                        MD5

                                        53b2802cebb2b1b6e826f05a24c5a378

                                        SHA1

                                        2295caeae6fba4278a42e3977f53aa919e9a844c

                                        SHA256

                                        dffee60fb32e4fe9dceef341c937be078ea9654de29be0355429a8923feb46de

                                        SHA512

                                        8c4fe10179644d4d257b24a845fc0c8be83556f2df3c49959710c8ee20b058cad349c4763efb5529fc13500a2382798f3eae76e24b6f0ba61d92be3b742a18ad

                                      • C:\Users\Admin\AppData\Local\Temp\cDZgCIO9GaB2.bat

                                        Filesize

                                        208B

                                        MD5

                                        acbcbb797a3bbe9b0134f897c65625d2

                                        SHA1

                                        cfda8eadc2fbaf8ada2d737f52fa2d54f3c9b022

                                        SHA256

                                        f391d0df033965a82a532037cb784e564c53f3105b6abf263740a5743dd7245d

                                        SHA512

                                        c47f26174d6226c5b6fc3e57b9f8f691a4b2170579c803a8698a01ba8f4067ae3d023691c93f64aabfbfef5496fc0aa2636cddb1f1836d7dd9456d510efcb056

                                      • 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\09-03-2024

                                        Filesize

                                        224B

                                        MD5

                                        b8f8b73c145bf7e9ad9a1c6cdeb03127

                                        SHA1

                                        65a91d99224f6fcdcf0e7d1712c92d1488129439

                                        SHA256

                                        8587607dd8ad51433c39121a114a983e1491f8a4cdf18da7e42597a6bb353581

                                        SHA512

                                        f4482c643cfc7337f2a7309816453c891422e43ab43fb6959d6e727779cf689945fe5af86cb2c4b727904ca8da821019aa66b2891f2541d831021c5337f248eb

                                      • C:\Users\Admin\AppData\Roaming\Logs\09-03-2024

                                        Filesize

                                        224B

                                        MD5

                                        51bd503fdc8a6dbb402670a6bad075d1

                                        SHA1

                                        4ab2bfc540952253282980fa94605741861c4e54

                                        SHA256

                                        fbcc5df045880d589f6d398a76640f1779d3fe8d47bd876473797dadd95a22e6

                                        SHA512

                                        b3e182ab8c2c31c120f8084cf7fa64f7b951576c945c613c9111af10744b59ae82e3abb397941731eadfd021cd31e73c81e94e7bbebd30ed36197dc297691734

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        caf9b5edebfb3ca0578fe75f6af71626

                                        SHA1

                                        9c0d04b32bf40d16d8cf7c4c94684abe70374e65

                                        SHA256

                                        c813ea03f760dffd2c07fbdd714508d2ea3daffab70e1bc80e03e7252508c272

                                        SHA512

                                        9d85e08b248c3ac1e7855376492926c69cabb24b46259f4684e808aace280c5937e7967b4ee992520fd5aac89587bfb0699611907032b2ba1f14982ffd90f306

                                      • memory/1264-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1264-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3448-35-0x0000000005250000-0x00000000052B6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/3448-36-0x0000000005E30000-0x0000000005E42000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/3448-37-0x0000000006370000-0x00000000063AC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/3448-34-0x00000000051B0000-0x0000000005242000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/3448-33-0x0000000005660000-0x0000000005C04000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/3448-30-0x00000000006C0000-0x000000000071E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/3448-19-0x0000000072B7E000-0x0000000072B7F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4512-20-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4740-45-0x0000000006760000-0x000000000676A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4888-74-0x0000000000FB0000-0x0000000000FD0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4888-80-0x0000000000FB0000-0x0000000000FD0000-memory.dmp

                                        Filesize

                                        128KB