Analysis

  • max time kernel
    5s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-08-2024 21:31

General

  • Target

    505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d.exe

  • Size

    2.0MB

  • MD5

    d8a316b84f676be0d15b78af835f1b7d

  • SHA1

    cf0dbe246c6e4ce5e17062b47dc8bbd299187056

  • SHA256

    505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d

  • SHA512

    b2e8532941479aacda48441ee384c5047bfcd15f64c465d815f3acc5abc1413bfca17a67a1df865e0eb97a263b2a16d4ac35efd2bc7dfcac9f5582a2801d3b50

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYl:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yn

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\505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d.exe
    "C:\Users\Admin\AppData\Local\Temp\505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d.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:3680
    • 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:3324
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 544
          3⤵
          • Program crash
          PID:4836
      • 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:1156
        • 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:1616
        • 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:4768
          • 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:2800
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EM7oqLrdjx36.bat" "
            4⤵
              PID:4888
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3840
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:5092
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2460
                    • 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:3712
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XylLCJho83DP.bat" "
                      6⤵
                        PID:1160
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1816
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1848
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 2244
                          6⤵
                          • Program crash
                          PID:4352
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 2028
                      4⤵
                      • Program crash
                      PID:368
                • C:\Users\Admin\AppData\Local\Temp\505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d.exe
                  "C:\Users\Admin\AppData\Local\Temp\505ba76777e8785c3f00001f4281399ad723109cf03f6bae6e853cdd238c789d.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2896
                • 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:3504
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3324 -ip 3324
                1⤵
                  PID:2428
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4768 -ip 4768
                  1⤵
                    PID:1928
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2192
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:1448
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2008
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 520
                              3⤵
                              • Program crash
                              PID:3172
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:4348
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3636
                              • 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:2872
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1448 -ip 1448
                              1⤵
                                PID:3324
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2460 -ip 2460
                                1⤵
                                  PID:4292
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4324
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4308

                                    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\EM7oqLrdjx36.bat

                                      Filesize

                                      208B

                                      MD5

                                      ed7605809fa9ceb54a4e976c5274422d

                                      SHA1

                                      8833c32e35778ae79920f693868105460692b529

                                      SHA256

                                      6ea19120f241ec8b8f7b884cf6ab753e38894ddc1f8239415d190a960a2f7b08

                                      SHA512

                                      3937f77008a003e805b4989f0c4b74b611d1ea9605c26cb4d446cbe1c8c84fa4a5a70c2ee5d5d9ecfea26be398be413e2b06f1a0b7ad08eaeba15c1094d3a6e8

                                    • C:\Users\Admin\AppData\Local\Temp\XylLCJho83DP.bat

                                      Filesize

                                      208B

                                      MD5

                                      838c24273b0ba90a58e60e8f3fe3c599

                                      SHA1

                                      cb08a84bc9b1e2ed981fcf3eafed898b40d7fd08

                                      SHA256

                                      fabddb7ecc389538fd5ae4826f247f38b18e6d322d8991422199a49b0d3e502d

                                      SHA512

                                      0cd8e010d9f1808ed937e0123a415113d81435647fca4c10f9a3c18566431340d04d7a18ff2be6a8ced1a00851d6f38c5ba54af98cf3b29840000ee7b877e2dd

                                    • 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\08-10-2024

                                      Filesize

                                      224B

                                      MD5

                                      78530f0250d2a5e13b8852b99e72aa0e

                                      SHA1

                                      244ebf614a3ac504635c3d216cd6a4655a6dfac3

                                      SHA256

                                      8eb5110950ec0e4aa8784a16897a3da8aa738361e61e4f36841ebba622a432d5

                                      SHA512

                                      82e341b105658fd396ed7e146fc0dc475b72e2efc16df883b0402e9b38de949ed80a0ae16d85849467048f6ff5729086445b47ab76f66dafbf0f2c66b16b8671

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      9dfbe573195ccaf747f7be2536b1e195

                                      SHA1

                                      d05b053206e3d9df0a0093cf341c188153396b4f

                                      SHA256

                                      e275926a6395c408d74f069f5c43832300a61c691d63d51dd87119924b610c85

                                      SHA512

                                      bc915582072bc8c90f6e11cb4a4d89ab75785d8822ade203614de52e56060bca8f30592e04052cf314580a16d55b395fecd2ea204eb3bfc16e59329625826853

                                    • memory/1156-36-0x0000000005680000-0x0000000005692000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1156-30-0x0000000000800000-0x000000000085E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/1156-35-0x0000000005180000-0x00000000051E6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1156-33-0x0000000005730000-0x0000000005CD4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1156-37-0x0000000006380000-0x00000000063BC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1156-19-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1156-34-0x0000000005220000-0x00000000052B2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2896-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2896-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3636-75-0x00000000004B0000-0x00000000004D0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3636-81-0x00000000004B0000-0x00000000004D0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3680-46-0x0000000000F00000-0x0000000000F01000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3680-27-0x0000000000F00000-0x0000000000F01000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4768-45-0x00000000066D0000-0x00000000066DA000-memory.dmp

                                      Filesize

                                      40KB