Analysis

  • max time kernel
    6s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 16:36

General

  • Target

    f4cc835aa7a27996220d99087edb1f80.exe

  • Size

    2.0MB

  • MD5

    f4cc835aa7a27996220d99087edb1f80

  • SHA1

    52c2ca6765887cd0e060d25a6439de8a7ad97504

  • SHA256

    35a5d806136c768e95a39a2a7bfdd0246714600cda889e0351afd819170fc5df

  • SHA512

    d14356c0f4d4caffefe556f86dcfa83dab5c3759c31d468846fd9f77da82cc2101b679b4c3f29f18d01b0f9e592ef2780f878d24f7555c03afa4eb583bc41365

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

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 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 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 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 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4cc835aa7a27996220d99087edb1f80.exe
    "C:\Users\Admin\AppData\Local\Temp\f4cc835aa7a27996220d99087edb1f80.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:4284
    • 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:2032
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 548
          3⤵
          • Program crash
          PID:2756
      • 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:4472
        • 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:1084
        • 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:1092
          • 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:1980
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XIz9ebmCtufO.bat" "
            4⤵
              PID:3500
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3076
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4108
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:212
                    • 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:448
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qjJGSPruq1hG.bat" "
                      6⤵
                        PID:4560
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4968
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2192
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2632
                              • 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:208
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 2288
                            6⤵
                            • Program crash
                            PID:1176
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 1700
                        4⤵
                        • Program crash
                        PID:4288
                  • C:\Users\Admin\AppData\Local\Temp\f4cc835aa7a27996220d99087edb1f80.exe
                    "C:\Users\Admin\AppData\Local\Temp\f4cc835aa7a27996220d99087edb1f80.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4948
                  • 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:4444
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2032 -ip 2032
                  1⤵
                    PID:2372
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1092 -ip 1092
                    1⤵
                      PID:632
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:316
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4352
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2436
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 520
                                3⤵
                                • Program crash
                                PID:3432
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3708
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3976
                                • 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:2128
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4352 -ip 4352
                                1⤵
                                  PID:3616
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 212 -ip 212
                                  1⤵
                                    PID:4448

                                  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\XIz9ebmCtufO.bat

                                    Filesize

                                    208B

                                    MD5

                                    75ce3248905c11d5315766e5c71d25ca

                                    SHA1

                                    8d0ff3f02812314c3b10b4278a29d3e69de217d1

                                    SHA256

                                    cc0f56f898a758436aae86607953a4cdc3828ba258ca50765f82567fb9f0f3b3

                                    SHA512

                                    c6a57e872d5742ae86516c0fef7b971feca517569f02a5f82716729cc1d882f71446bda6055c4620cf23c77623f33df9529f5e28d928031e4fd88eb50c39dfe5

                                  • C:\Users\Admin\AppData\Local\Temp\qjJGSPruq1hG.bat

                                    Filesize

                                    208B

                                    MD5

                                    5eb80c461e00a799694b2456c68261b7

                                    SHA1

                                    a087ecbb4280306b2931a6c5ab69148a362e1791

                                    SHA256

                                    ac0095380626453f8647af26017cadbef8fd44eb9aa7c3211997871a439e9b4f

                                    SHA512

                                    d99343ed9575e478a8140a6ed78de986bcd761855edae3ec148bcf4cbbee15e8dadbf9fa9ca975bfdb249a4a16dd1c465bedc74b5dfd91748a9be8078f9ee7c4

                                  • 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\09-16-2024

                                    Filesize

                                    224B

                                    MD5

                                    2b1483f7b469038c79905761e72a870d

                                    SHA1

                                    42b2e8410bec742a770d59c5827840bc1fd50c42

                                    SHA256

                                    c8e0b621c05b46551c293ae0858f8e5d1835687123c7dadaa6e66b09f97f6162

                                    SHA512

                                    c4046316597b1cf9da6ffec9ec3e99f2ef00fd69c6b34435693f8f08d5724d76b1fef275308dee3079fecd4b2a61ea9bec30085e0269b98138893fd76be61820

                                  • C:\Users\Admin\AppData\Roaming\Logs\09-16-2024

                                    Filesize

                                    224B

                                    MD5

                                    ebc4653f185e50555575bc8bd3548752

                                    SHA1

                                    9dab9799e27cc3709d16d0533796de5d69b24e3d

                                    SHA256

                                    0440411b94ea1a5ae2dc0e20496a91f9da83c22a95a571fbbea7308685e5172f

                                    SHA512

                                    5971760aefd041314bd48ff48bc327778ef1aa8e0c1ac56400196dab063b968dfa216779d59aebeabd15777369f1b87b99266f51d43dc87db7a523b77bb7e655

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    f89f8ed97deac99764365b658a4280af

                                    SHA1

                                    d6d7d8cbb72f91bfe81bc25e881fc0f18b549d40

                                    SHA256

                                    d1af1ff94294477c988fdcbc1f5a924d93a95d72bf37d7522261286a481365b7

                                    SHA512

                                    e6e71701830c5f17c662c8558ac53070a44f912c2f5ee4862c6286f14400bc2a6bb5c2532e9e4dd0fea67f521a6a95ba1b3e197aa6a459b8ff8415af6db3110e

                                  • memory/1092-44-0x00000000066E0000-0x00000000066EA000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/4284-19-0x00000000041C0000-0x00000000041C1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4472-34-0x0000000005000000-0x0000000005066000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/4472-36-0x00000000061A0000-0x00000000061DC000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/4472-35-0x00000000054B0000-0x00000000054C2000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/4472-33-0x0000000004F60000-0x0000000004FF2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/4472-32-0x0000000005510000-0x0000000005AB4000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/4472-31-0x0000000000630000-0x000000000068E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/4948-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4948-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB