Analysis

  • max time kernel
    5s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2024 02:35

General

  • Target

    ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d.exe

  • Size

    2.0MB

  • MD5

    8da50af63643588c01e6d83a0ee08e12

  • SHA1

    c0526494259320f97ab61c9d1b3cbe2e110d681e

  • SHA256

    ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d

  • SHA512

    2b908ea1118fcd101627b21d668aa65a2a40d3a9392033c6797e13e768417031f587110affc748aced94f22432197b602b817770d4392effaea7a353ae828675

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y1

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
  • 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 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 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\ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d.exe
    "C:\Users\Admin\AppData\Local\Temp\ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d.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:1004
    • 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:3036
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1144
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 548
          3⤵
          • Program crash
          PID:3284
      • 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:4428
        • 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:4124
        • 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:2244
          • 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:3884
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JucdoAMWl9DG.bat" "
            4⤵
              PID:4148
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2168
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4368
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:432
                    • 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:4276
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 432 -s 2252
                      6⤵
                      • Program crash
                      PID:2852
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 1992
                  4⤵
                  • Program crash
                  PID:3384
            • C:\Users\Admin\AppData\Local\Temp\ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d.exe
              "C:\Users\Admin\AppData\Local\Temp\ecb11a3ef61c5e48bc36f4dda326720913f71eeb26161e42c46b0b01cf4e8b3d.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:3372
            • 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:2948
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3036 -ip 3036
            1⤵
              PID:424
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2244 -ip 2244
              1⤵
                PID:3064
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3188
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:2944
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3100
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 520
                          3⤵
                          • Program crash
                          PID:1588
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4644
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:1300
                          • 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:396
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2944 -ip 2944
                          1⤵
                            PID:1952
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 432 -ip 432
                            1⤵
                              PID:4072
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:3400
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:2736
                                • C:\Windows\system32\dwm.exe
                                  "dwm.exe"
                                  1⤵
                                    PID:4824
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:4424
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:1808
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:2272
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:2036

                                          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\JucdoAMWl9DG.bat

                                            Filesize

                                            208B

                                            MD5

                                            647d3b4e12b9b509f1b845e7ab514a7d

                                            SHA1

                                            979a781ca70c864ac257cb299a87d26e304c8a9e

                                            SHA256

                                            855f40e78e5be5c0e1d41d9c093a1f0fb044002c5d57dfef3519e28cb3807bda

                                            SHA512

                                            f54d5a3dc16e1279d0bf193dcbccbeab2a86fd8ec5f1ef623aa112a922113e20d5c00913e1a3cf16e90e2b8e011682b2c13a1f7971f64dbaf409f313f73f53c1

                                          • 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\08-06-2024

                                            Filesize

                                            224B

                                            MD5

                                            e6d90c967048baa569c09b59aef9794c

                                            SHA1

                                            706e2432a1de4243dcb2ec4fd7da2a3c594f0188

                                            SHA256

                                            a524f6bb3e87dea763d97c5fe62c7fa5652ff9f77062934ca5886da991086966

                                            SHA512

                                            d0d97ac0aa00d83ea6358e9b85934c4fc400b8147df48b146bdc93c2dc11bf831cb45590d108bd6632850d43c076df651551ea0205214d926b04c3a25f035912

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            8c16810e83ca9ac3870d852c335e069f

                                            SHA1

                                            bd7d9ebd471acd9e9c10179063326a0c72f8734e

                                            SHA256

                                            4dfd7a7d21a5c3d0ccbb57c075f6d782ef19f56002364ea25b02c09ad0695d99

                                            SHA512

                                            2181d0a4bdf10cb0f1a93e39adbfab90d2ecb8e45ef7716fef15d0366c19290bc9466e25024b305807efe5a54e59c23aed1c658669b2b1702e2cb6852a84d4fc

                                          • memory/432-89-0x0000000073E30000-0x0000000073EBD000-memory.dmp

                                            Filesize

                                            564KB

                                          • memory/1004-46-0x00000000033A0000-0x00000000033A1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1004-28-0x00000000033A0000-0x00000000033A1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1808-88-0x00007FF8E9070000-0x00007FF8E91C4000-memory.dmp

                                            Filesize

                                            1.3MB

                                          • memory/2244-45-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/3372-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/3372-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4428-29-0x000000007368E000-0x000000007368F000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4428-37-0x0000000006190000-0x00000000061CC000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/4428-36-0x0000000005C50000-0x0000000005C62000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4428-35-0x0000000004F40000-0x0000000004FA6000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/4428-34-0x0000000004FC0000-0x0000000005052000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/4428-33-0x0000000005460000-0x0000000005A04000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/4428-30-0x0000000000620000-0x000000000067E000-memory.dmp

                                            Filesize

                                            376KB