Analysis

  • max time kernel
    4s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 11:53

General

  • Target

    7185b3eaacc71151d8541600bb332030N.exe

  • Size

    2.0MB

  • MD5

    7185b3eaacc71151d8541600bb332030

  • SHA1

    5a8c40dd85cca0bef420a31cb02e419ebcf6c74b

  • SHA256

    7255cdba12d713b61c0f973ab0b1770efe3b3ea71e84ddc0245255b39e056e41

  • SHA512

    fcdea8925f4a7ae06a31d242c9eb70cf44f465db619a0ad2e27051ca3de482bf285c5b32758a95c8a0e72a060cf5f75743d4a765e53f830e637d8c6dd9d4c391

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YJ

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 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 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\7185b3eaacc71151d8541600bb332030N.exe
    "C:\Users\Admin\AppData\Local\Temp\7185b3eaacc71151d8541600bb332030N.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:856
    • 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:924
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 924 -s 540
          3⤵
          • Program crash
          PID:1608
      • 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:3648
        • 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:3640
        • 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:3936
          • 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:4632
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OY2xnstQ2c7j.bat" "
            4⤵
              PID:3048
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4268
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4784
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2860
                    • 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:3188
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GsNKdcC73wCZ.bat" "
                      6⤵
                        PID:5100
                        • C:\Windows\SysWOW64\PING.EXE
                          ping -n 10 localhost
                          7⤵
                          • System Network Configuration Discovery: Internet Connection Discovery
                          • Runs ping.exe
                          PID:2924
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 1104
                        6⤵
                        • Program crash
                        PID:412
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 1720
                    4⤵
                    • Program crash
                    PID:4272
              • C:\Users\Admin\AppData\Local\Temp\7185b3eaacc71151d8541600bb332030N.exe
                "C:\Users\Admin\AppData\Local\Temp\7185b3eaacc71151d8541600bb332030N.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:1376
              • 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:2840
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 924 -ip 924
              1⤵
                PID:4536
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3936 -ip 3936
                1⤵
                  PID:1100
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4272
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1624
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2724
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 520
                            3⤵
                            • Program crash
                            PID:2256
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3744
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4000
                            • 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:4456
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1624 -ip 1624
                            1⤵
                              PID:2988
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2860 -ip 2860
                              1⤵
                                PID:4596
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:4056
                                  • C:\Windows\system32\WerFault.exe
                                    C:\Windows\system32\WerFault.exe -u -p 4056 -s 3260
                                    2⤵
                                      PID:4632
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:800
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:2252
                                      • C:\Windows\system32\dwm.exe
                                        "dwm.exe"
                                        1⤵
                                          PID:1436
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:1152
                                          • C:\Windows\system32\sihost.exe
                                            sihost.exe
                                            1⤵
                                              PID:2828
                                            • C:\Windows\system32\sihost.exe
                                              sihost.exe
                                              1⤵
                                                PID:1116
                                              • C:\Windows\system32\sihost.exe
                                                sihost.exe
                                                1⤵
                                                  PID:2800
                                                • C:\Windows\system32\sihost.exe
                                                  sihost.exe
                                                  1⤵
                                                    PID:2688
                                                  • C:\Windows\system32\sihost.exe
                                                    sihost.exe
                                                    1⤵
                                                      PID:1824
                                                    • C:\Windows\system32\sihost.exe
                                                      sihost.exe
                                                      1⤵
                                                        PID:4792

                                                      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\GsNKdcC73wCZ.bat

                                                        Filesize

                                                        208B

                                                        MD5

                                                        01f6df470278c77122468ffcb8a5d113

                                                        SHA1

                                                        f1509e0e76fa3a7ece9816b7b77f109ac9ed04bd

                                                        SHA256

                                                        b532e1aba002ee735b6b1de1b236362146b01414b440d61af24d56c0852cb16e

                                                        SHA512

                                                        9e92be60d037ca963ed8f50c99b092c483b9da5c808d90d4074d3b06ad04580c331830f0a9c3594fd3b46baa43176c09d0b7b7ca841ad62a694f855f3e9d882c

                                                      • C:\Users\Admin\AppData\Local\Temp\OY2xnstQ2c7j.bat

                                                        Filesize

                                                        208B

                                                        MD5

                                                        1f61a003f462d69657885b4279ad0cb3

                                                        SHA1

                                                        c3f68798f80ab62db3cfa211d918682e788a4d24

                                                        SHA256

                                                        4f0f7d8b51a0100e40f51b0fd52cce01bc22921b09ed39d5696fc15c0be8de59

                                                        SHA512

                                                        abb4a80c75691810046208e4c186fa67908de5a1439c0e415fde6816cb50496e1dcb10aced02f6553b21ea69bd541e4c0004d25691e6a406666dafced8c558da

                                                      • 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\08-13-2024

                                                        Filesize

                                                        224B

                                                        MD5

                                                        f3e3ad7437adb951ba0843a0a8970183

                                                        SHA1

                                                        a2b2be94394db7e2143d4947e8e62dd46bd6d3ed

                                                        SHA256

                                                        754987fa9ad4d0e4aa6d97bb8dd860c516c5c5959d54e93b93632b39214a623f

                                                        SHA512

                                                        50fe9b3d32319ce172955639d67f878124f2c728bccd7b09cb6dea064b7cbd2943682a5733b18b5bcc9182427f3e393bd4cacae192ee690f255d13f0e2ed5f28

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

                                                        Filesize

                                                        2.0MB

                                                        MD5

                                                        640f0b2b3a794d663e67e3ddeb7d196d

                                                        SHA1

                                                        2ce31e9748f7ffd23a3532dc8b290cc510b44fa3

                                                        SHA256

                                                        7c2058fc2cb09eb2fe8a2f085c53ff533fd9c23dc39ba08b97ae41b8313e2394

                                                        SHA512

                                                        25355551ec1d00f251e207d2cff35d99d135a38000a89464fe778243b8f576476a6eb80f95b408402a4cda4f38afa7a85a7b66764c9ab5270ea267bf92b83014

                                                      • memory/856-46-0x0000000004390000-0x0000000004391000-memory.dmp

                                                        Filesize

                                                        4KB

                                                      • memory/856-26-0x0000000004390000-0x0000000004391000-memory.dmp

                                                        Filesize

                                                        4KB

                                                      • memory/1376-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/1376-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/3648-34-0x0000000005940000-0x00000000059D2000-memory.dmp

                                                        Filesize

                                                        584KB

                                                      • memory/3648-37-0x0000000006B20000-0x0000000006B5C000-memory.dmp

                                                        Filesize

                                                        240KB

                                                      • memory/3648-36-0x00000000065E0000-0x00000000065F2000-memory.dmp

                                                        Filesize

                                                        72KB

                                                      • memory/3648-35-0x00000000058C0000-0x0000000005926000-memory.dmp

                                                        Filesize

                                                        408KB

                                                      • memory/3648-33-0x0000000005EF0000-0x0000000006494000-memory.dmp

                                                        Filesize

                                                        5.6MB

                                                      • memory/3648-32-0x0000000000FC0000-0x000000000101E000-memory.dmp

                                                        Filesize

                                                        376KB

                                                      • memory/3648-29-0x0000000072E1E000-0x0000000072E1F000-memory.dmp

                                                        Filesize

                                                        4KB

                                                      • memory/3936-45-0x0000000006810000-0x000000000681A000-memory.dmp

                                                        Filesize

                                                        40KB