Analysis

  • max time kernel
    4s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 23:06

General

  • Target

    818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7.exe

  • Size

    2.0MB

  • MD5

    ccad408c7ce69d5e4f2d635c46458202

  • SHA1

    0c9e336b44a67d65843311bfe8711cd32b965c8c

  • SHA256

    818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7

  • SHA512

    be40f01f9a7d5dfa5967a20d82cb509075be95e4cba0fc69119c7d252a110c4e34e0988a4418243df8afef7642c65d9f4b7f11aaf640941670a2621a00fa8707

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 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
  • Creates scheduled task(s) 1 TTPs 6 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • 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\818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7.exe
    "C:\Users\Admin\AppData\Local\Temp\818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2160
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 548
          3⤵
          • Program crash
          PID:1936
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:968
        • 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⤵
          • Creates scheduled task(s)
          PID:1676
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4492
          • 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⤵
            • Creates scheduled task(s)
            PID:1028
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TmOC3GcvyIdO.bat" "
            4⤵
              PID:3384
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4372
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:4548
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1240
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:4512
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5WLoyofGFQ1h.bat" "
                      6⤵
                        PID:1080
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4792
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:2960
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4880
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 204
                                8⤵
                                • Program crash
                                PID:3976
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1240 -s 2112
                            6⤵
                            • Program crash
                            PID:1028
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2252
                        4⤵
                        • Program crash
                        PID:4364
                  • C:\Users\Admin\AppData\Local\Temp\818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7.exe
                    "C:\Users\Admin\AppData\Local\Temp\818d900af1ef03e94a077f06e6531278ee35f2510439922b8f583e7abb7094f7.exe"
                    2⤵
                      PID:2312
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:1304
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1096 -ip 1096
                    1⤵
                      PID:2988
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4492 -ip 4492
                      1⤵
                        PID:4568
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        1⤵
                          PID:3052
                          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                            2⤵
                              PID:1964
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k
                                3⤵
                                  PID:4332
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 520
                                  3⤵
                                  • Program crash
                                  PID:1936
                              • C:\Users\Admin\AppData\Local\Temp\windef.exe
                                "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                                2⤵
                                  PID:2684
                                  • 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⤵
                                    • Creates scheduled task(s)
                                    PID:3732
                                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                    3⤵
                                      PID:556
                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                    2⤵
                                      PID:708
                                    • 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⤵
                                      • Creates scheduled task(s)
                                      PID:3036
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1964 -ip 1964
                                    1⤵
                                      PID:4760
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1240 -ip 1240
                                      1⤵
                                        PID:4060
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4880 -ip 4880
                                        1⤵
                                          PID:4156
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:4888
                                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                            1⤵
                                              PID:2408
                                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                              1⤵
                                                PID:1576

                                              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\5WLoyofGFQ1h.bat

                                                Filesize

                                                208B

                                                MD5

                                                cfbee6f8f687b9fd9a1c8f6bd50be312

                                                SHA1

                                                6c90b14570c625a461fc0292640e4ae6ce1464e0

                                                SHA256

                                                c4ba09a0ad123a9bfe4d6026f2cf961c735c854749b1fa58636c14cdd996f980

                                                SHA512

                                                d454fdd09f337e8699ca2825f064ff7ba853d9ba7f1dc454bf9bdb42a9bd62b64937cbd6c160556a5d45a15224d0e7414532d27f819bc14f9970e8ace42890bd

                                              • C:\Users\Admin\AppData\Local\Temp\TmOC3GcvyIdO.bat

                                                Filesize

                                                208B

                                                MD5

                                                3d33c7e7f7136382781b57d7a24ee8c5

                                                SHA1

                                                9d3251dc5a3d6d3a176338a5f3618acb6bcffc86

                                                SHA256

                                                96f3126d931071678db354e20a9ed8b33e784517f3b79bdc352414d7db8d64e8

                                                SHA512

                                                9149925ceacf526c0101769aff8d672bdf791227b2db5eb5f2dd4586a67bb5040d7abe2e178dd476f6b063df6b48e5b1665afaf36aa7ec107505e064aa24008e

                                              • 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\04-02-2024

                                                Filesize

                                                224B

                                                MD5

                                                c3af2f517b79fbb5824b8107b724d521

                                                SHA1

                                                b9f0ca77f98c6212cdca0e752ffad936846f026c

                                                SHA256

                                                304bd0627919dccaf57ef24ecb03eaff889c959a6d0610bf9acadf239bdef0f8

                                                SHA512

                                                6bb822810cbe774cbac5b8aac26af833e711ad06e76dda544faa6a70950611c16145f75c4dcf75c1b2e5e2d7408920d5a322289f642e43fbe895b4c5719b1edd

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

                                                Filesize

                                                2.0MB

                                                MD5

                                                33f276b11efd2ffa5e8f287c72f057ce

                                                SHA1

                                                84599f1d5f3f72ae7f0e1cd4eb7d610b2232f286

                                                SHA256

                                                b3b337dd7ee0f415a9fab3ee4f31b5068e632701b75cf53ef01dffb31a67849e

                                                SHA512

                                                fb6e1136f23775f3e9d870e807b237ad68cd1b5270854c016f71339aca5dffedf9ae6cd5f458494042071ae05aff771ddccc5468bdbbec8873640085adecb4c5

                                              • memory/556-98-0x0000000004F70000-0x0000000004F80000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/556-95-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/556-103-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/968-29-0x0000000005E40000-0x00000000063E4000-memory.dmp

                                                Filesize

                                                5.6MB

                                              • memory/968-35-0x0000000005920000-0x0000000005930000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/968-38-0x0000000006B30000-0x0000000006B6C000-memory.dmp

                                                Filesize

                                                240KB

                                              • memory/968-36-0x0000000005930000-0x0000000005996000-memory.dmp

                                                Filesize

                                                408KB

                                              • memory/968-45-0x0000000073590000-0x0000000073D40000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/968-24-0x0000000000FA0000-0x0000000000FFE000-memory.dmp

                                                Filesize

                                                376KB

                                              • memory/968-26-0x0000000073590000-0x0000000073D40000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/968-37-0x00000000065F0000-0x0000000006602000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/968-32-0x00000000059D0000-0x0000000005A62000-memory.dmp

                                                Filesize

                                                584KB

                                              • memory/1240-104-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/1240-105-0x0000000005410000-0x0000000005420000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/1240-97-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/1724-20-0x0000000003870000-0x0000000003871000-memory.dmp

                                                Filesize

                                                4KB

                                              • memory/2312-31-0x0000000000400000-0x0000000000420000-memory.dmp

                                                Filesize

                                                128KB

                                              • memory/2312-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                                Filesize

                                                128KB

                                              • memory/2684-79-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/2684-78-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/2684-99-0x0000000073190000-0x0000000073940000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/4492-56-0x0000000073590000-0x0000000073D40000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/4492-51-0x00000000059A0000-0x00000000059B0000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/4492-50-0x0000000073590000-0x0000000073D40000-memory.dmp

                                                Filesize

                                                7.7MB

                                              • memory/4492-49-0x00000000070C0000-0x00000000070CA000-memory.dmp

                                                Filesize

                                                40KB

                                              • memory/4492-47-0x00000000059A0000-0x00000000059B0000-memory.dmp

                                                Filesize

                                                64KB

                                              • memory/4492-46-0x0000000073590000-0x0000000073D40000-memory.dmp

                                                Filesize

                                                7.7MB