Analysis

  • max time kernel
    5s
  • 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
    31-12-2024 23:15

General

  • Target

    1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845.exe

  • Size

    2.0MB

  • MD5

    368367c9fda07bce518963781ab5fdbb

  • SHA1

    5dbda8bb91d4427416ec82239393dc8bcc370d18

  • SHA256

    1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845

  • SHA512

    c7ba937b818f3da5bac2b86f522b47fbb03523b3b33017c6f62773b2a132d6c16ead9cbcfa81e22232741ae8c9257abdd9f23324eb1f33a7a7da24c082b3463b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYu:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YA

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\1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845.exe
    "C:\Users\Admin\AppData\Local\Temp\1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845.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:2328
    • 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:3416
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3416 -s 540
          3⤵
          • Program crash
          PID:2308
      • 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:4108
        • 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:3228
        • 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:3136
          • 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:1028
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sRkXCsKuf8hm.bat" "
            4⤵
              PID:1744
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4348
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2320
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2684
                    • 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:2256
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 2268
                  4⤵
                  • Program crash
                  PID:5072
            • C:\Users\Admin\AppData\Local\Temp\1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845.exe
              "C:\Users\Admin\AppData\Local\Temp\1c99bd69642429ca6230342597ecdc948eabb55357b5e07674823b0fb363c845.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4700
            • 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:4288
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3416 -ip 3416
            1⤵
              PID:3704
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3136 -ip 3136
              1⤵
                PID:560
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:2032
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:1804
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:4564
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 520
                          3⤵
                          • Program crash
                          PID:2716
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:3364
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:4996
                          • 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:1964
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1804 -ip 1804
                          1⤵
                            PID:3500
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:676
                              • C:\Windows\explorer.exe
                                explorer.exe /LOADSAVEDWINDOWS
                                2⤵
                                  PID:2028
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:1532
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4528

                                  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\sRkXCsKuf8hm.bat

                                    Filesize

                                    208B

                                    MD5

                                    0d41fb0a6f59050640c649df65c68f5c

                                    SHA1

                                    6d94fcc0cf57ec48a6db3d345c313d3dd9be5466

                                    SHA256

                                    df715e1957074b0edb4d4068c85ffc592b1a3ba99b6fe7fb20f64c6aa7f70d3e

                                    SHA512

                                    3c7aa891fc7e321501e7237be32fc3461fafad8b44757a1a18531f5868a65a99bf55b1c79307896ed54fa9360aa9d506bcd7a4524945e08fe8a5eb29f0de8d9a

                                  • 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\12-31-2024

                                    Filesize

                                    224B

                                    MD5

                                    e597dd4bf0981185e600c65faad7989f

                                    SHA1

                                    1d55f68c548e7ed77d87a57c7c460fdf7fc77809

                                    SHA256

                                    45e2df8e2aa4712d1b8ebae244564230a6d9530b79c9c5a9ca3325ac0f32502c

                                    SHA512

                                    cbc51ed1e9315a9bcc14a7e4828b94cecdb216675fda510ad63768436e02bf9cb1cebb9078bf6f826e9f2b3a5f0f08bbbbddfeab24448f28f84df8d1937e3b40

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    737b32a061a186b09db5af71f467292b

                                    SHA1

                                    04058c44dded403c6cbcbdb6070bd8098fc0a72c

                                    SHA256

                                    1373429a5bd5672309f981a49ddcf88c3151221639cb40463e490f6b39b37457

                                    SHA512

                                    6ccfe9ea87563660e48a334242ba7fe73d0d7b221fb79d6c4d94659c360d8999c7a2bf4b05d6f52dacf8fa6c92a1d2bf75806c872f11a58b432a2c78fbc0dfc1

                                  • memory/2328-19-0x00000000046D0000-0x00000000046D1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/3136-44-0x00000000066A0000-0x00000000066AA000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/4108-34-0x00000000058A0000-0x0000000005906000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/4108-35-0x0000000006480000-0x0000000006492000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/4108-36-0x00000000069C0000-0x00000000069FC000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/4108-33-0x00000000057B0000-0x0000000005842000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/4108-32-0x0000000005D60000-0x0000000006304000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/4108-31-0x0000000000E50000-0x0000000000EAE000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/4700-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4700-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4996-73-0x0000000000340000-0x0000000000360000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4996-79-0x0000000000340000-0x0000000000360000-memory.dmp

                                    Filesize

                                    128KB