Analysis

  • max time kernel
    4s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2024 12:03

General

  • Target

    8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3.exe

  • Size

    2.0MB

  • MD5

    d01c5529f58933539073d2f0824a22da

  • SHA1

    09618c1345af21c65d0362bd0477fad056150e68

  • SHA256

    8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3

  • SHA512

    7f13542150f8ee05c65149036819ed1563c9d4f0dd424b1bea64880751567c0818d0cdf478d8ef45ea5b4d0ecb29e3daa2b7652706ea98a549ff886742f45ca4

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYg:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y+

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 3 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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\8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3.exe
    "C:\Users\Admin\AppData\Local\Temp\8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3.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:2880
    • 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:1192
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 548
          3⤵
          • Program crash
          PID:4928
      • 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:2096
        • 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:3944
        • 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:556
          • 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:1908
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qJaj0R7Uhevm.bat" "
            4⤵
              PID:3296
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2296
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2516
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3996
                    • 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:3324
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 1112
                  4⤵
                  • Program crash
                  PID:1620
            • C:\Users\Admin\AppData\Local\Temp\8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3.exe
              "C:\Users\Admin\AppData\Local\Temp\8e3ff12a1fb091d2ffde45c1b59b144218ac4bfa3989bb1e1e4ad64af4d639e3.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4908
            • 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:2184
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1192 -ip 1192
            1⤵
              PID:3600
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 556 -ip 556
              1⤵
                PID:4380
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:5008
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:3512
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:4452
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3512 -s 520
                          3⤵
                          • Program crash
                          PID:2608
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1772
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:2920
                          • 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:3964
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3512 -ip 3512
                          1⤵
                            PID:4928
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:5068
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:2860

                              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\qJaj0R7Uhevm.bat

                                Filesize

                                208B

                                MD5

                                781740438f805bed008ce85f1a751823

                                SHA1

                                4243f12b66d6bf96ed805714cb39358d92235884

                                SHA256

                                5742f3029b23854a5396688062a376e13cf48c028d1f42dcdd3a263181bd3cf9

                                SHA512

                                7ef0cc9ccd30f3f5da763a9491bcf767a27fc28e2b3fc81e02f24423a25c5a554fd36cb3e101ec69c81a68ba9b3d99bb08db6b2bec7d7f9a339c47e714053396

                              • 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\12-01-2024

                                Filesize

                                224B

                                MD5

                                31923298ad6510b02e29f67fb604cea9

                                SHA1

                                858b2a4adf08a3784fbdf307d1d5e0857adb8dfb

                                SHA256

                                5500a54c90930c4ae33d36b6c88b132fa09e31fb2b9c5d4fc483658a3157a51d

                                SHA512

                                c747068a0a9dd905fc52cd52a818a5562081d901f2a5257e6a35541ceb42292e7c07c7142166285496929210c10d562f1aed09e5aa8fdb67ddd6eabfe0d6886e

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

                                Filesize

                                2.0MB

                                MD5

                                77b2157e4cd71ba913cdc80762665eb7

                                SHA1

                                ad59921582178364457869f51ad9679d29208fc9

                                SHA256

                                34eb61fc1b1284194853c0420451c65d12ae527c81e171b032c3212e6861550c

                                SHA512

                                b32bacd94168b77133fcf4fbfc9ae9eba6b77dacfc6171d3d95611e7b325d8184c4a535f33ec33360ddbac818dea454ee6ed599fe340d942255c77c183b110e6

                              • memory/556-44-0x00000000066F0000-0x00000000066FA000-memory.dmp

                                Filesize

                                40KB

                              • memory/2096-34-0x0000000005120000-0x0000000005186000-memory.dmp

                                Filesize

                                408KB

                              • memory/2096-33-0x0000000005050000-0x00000000050E2000-memory.dmp

                                Filesize

                                584KB

                              • memory/2096-35-0x0000000005D70000-0x0000000005D82000-memory.dmp

                                Filesize

                                72KB

                              • memory/2096-36-0x00000000062B0000-0x00000000062EC000-memory.dmp

                                Filesize

                                240KB

                              • memory/2096-32-0x0000000005540000-0x0000000005AE4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/2096-31-0x0000000000720000-0x000000000077E000-memory.dmp

                                Filesize

                                376KB

                              • memory/2880-19-0x00000000015E0000-0x00000000015E1000-memory.dmp

                                Filesize

                                4KB

                              • memory/2920-73-0x00000000005C0000-0x00000000005E0000-memory.dmp

                                Filesize

                                128KB

                              • memory/2920-79-0x00000000005C0000-0x00000000005E0000-memory.dmp

                                Filesize

                                128KB

                              • memory/4908-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/4908-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB