Analysis

  • max time kernel
    5s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2024 09:51

General

  • Target

    bda902f411aa66b4c34c4ad33c9bdd20N.exe

  • Size

    2.0MB

  • MD5

    bda902f411aa66b4c34c4ad33c9bdd20

  • SHA1

    b2fd543472a339f5acc0da0821841527fb1f9c24

  • SHA256

    4b1eba9aaec19a37fdace09b534e0b3301942cb9765ec8a47c8f15287fd8414d

  • SHA512

    6edcb57e896e72e80f42f0d227eef817f5c260dfcfaeb0bc678a95b844e7d581a844d7499fceda93d140fbbd43f0d4750f786f1206c7d5c46a7c6e61ae304fd8

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYA:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

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 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 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\bda902f411aa66b4c34c4ad33c9bdd20N.exe
    "C:\Users\Admin\AppData\Local\Temp\bda902f411aa66b4c34c4ad33c9bdd20N.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:2664
    • 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:1040
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4572
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 556
          3⤵
          • Program crash
          PID:4576
      • 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:2156
        • 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:5048
        • 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:4868
          • 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:4252
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KwAG0zFFvTWu.bat" "
            4⤵
              PID:3152
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4708
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2352
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3576
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 2012
                  4⤵
                  • Program crash
                  PID:3168
            • C:\Users\Admin\AppData\Local\Temp\bda902f411aa66b4c34c4ad33c9bdd20N.exe
              "C:\Users\Admin\AppData\Local\Temp\bda902f411aa66b4c34c4ad33c9bdd20N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4524
            • 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:3868
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1040 -ip 1040
            1⤵
              PID:2420
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4868 -ip 4868
              1⤵
                PID:2060
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1220
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:1740
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3160
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 520
                          3⤵
                          • Program crash
                          PID:2420
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:2552
                          • 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⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:376
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:2268
                              • 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⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:4796
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:1496
                            • 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:1572
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1740 -ip 1740
                            1⤵
                              PID:2452
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:3828
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:4776

                                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\KwAG0zFFvTWu.bat

                                  Filesize

                                  208B

                                  MD5

                                  348d024c26084806ff6c80e797c03526

                                  SHA1

                                  d98db6f6783741cdb3791be8a8c45e2cae76f0b4

                                  SHA256

                                  1d0d9cd822098827a5961bbce0fb5858857b562720f4f50c20dcbba819c2569a

                                  SHA512

                                  f35754b326c49c377d1743344b08b50f038b9c196bbb316df2d1811b1d10b9baca6338a1b4e2f9e4348cbf73a097ed0bee5232a7ed9c3e95f0662c65567c9654

                                • 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\09-15-2024

                                  Filesize

                                  224B

                                  MD5

                                  4593a8a000b425994c7021cfbaffe348

                                  SHA1

                                  402944abeb086e42103e4acb818060aec5d06728

                                  SHA256

                                  d9ab68ebdfd1bb97a2aece05376c1806fb515ebbe9db6f558860df3676fa94f8

                                  SHA512

                                  61d6e18517b5f83343cd46a8a3b3d15bb58b373f1fea8176c2001ad3d54a47d87b02c54119484d86c059aea10c59c9bf4fe7d072980197747f0ca9582001e906

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  83e7d7faa214e943954ba23f57ba958d

                                  SHA1

                                  2345a6ddb1d22adda0144e78b24b54697cebfd42

                                  SHA256

                                  689f63a6e42325d35a979fe2adf558bc852797bb5f76ff2192a65d7df1420a92

                                  SHA512

                                  e3745ee6a996ef89c813f3515a43e956ae1041583d9d364bb0f1bbea5737e78ebea89f1f2eb0a6eb7d6258987a126bbdf03e35a77b3ec8af8edf55e8dd62cdee

                                • memory/1496-77-0x0000000000150000-0x0000000000170000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1496-71-0x0000000000150000-0x0000000000170000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2156-33-0x0000000005CA0000-0x0000000006244000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2156-34-0x00000000056F0000-0x0000000005782000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2156-35-0x0000000005790000-0x00000000057F6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2156-36-0x00000000064B0000-0x00000000064C2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/2156-37-0x00000000069F0000-0x0000000006A2C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/2156-32-0x0000000000D80000-0x0000000000DDE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/2156-29-0x00000000735BE000-0x00000000735BF000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2664-19-0x0000000001EA0000-0x0000000001EA1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4524-28-0x00000000009E0000-0x0000000000A00000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4524-20-0x00000000009E0000-0x0000000000A00000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4868-45-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

                                  Filesize

                                  40KB