Analysis

  • max time kernel
    5s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 15:25

General

  • Target

    5522c9076cce463934c9dd0ab2f74070N.exe

  • Size

    2.0MB

  • MD5

    5522c9076cce463934c9dd0ab2f74070

  • SHA1

    85d829b1b828c9487ab1a6d226699d1e427e5665

  • SHA256

    c50c0be676a4b7520691ed6ecc6624dc8759aeac90e9aeb9c5ae0fa5088506a7

  • SHA512

    1f90d32666eef0d7392325023be552ff1bc1a4e34da5faaa03cb112c7c452d6bb834a38eb27093ddc17b038ccdd06a02324109237f31428859193f72ef1c0f2b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYE:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yu

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\5522c9076cce463934c9dd0ab2f74070N.exe
    "C:\Users\Admin\AppData\Local\Temp\5522c9076cce463934c9dd0ab2f74070N.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:2560
    • 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:2484
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4832
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 552
          3⤵
          • Program crash
          PID:4888
      • 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:5420
        • 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:6116
        • 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:2516
          • 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:4620
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WABu40Ytt1TV.bat" "
            4⤵
              PID:4816
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1660
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:436
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3664
                    • 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:4288
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sodBDjYNovKh.bat" "
                      6⤵
                        PID:5476
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3856
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4120
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 2256
                          6⤵
                          • Program crash
                          PID:3920
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 2268
                      4⤵
                      • Program crash
                      PID:4244
                • C:\Users\Admin\AppData\Local\Temp\5522c9076cce463934c9dd0ab2f74070N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5522c9076cce463934c9dd0ab2f74070N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2192
                • 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:5996
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2484 -ip 2484
                1⤵
                  PID:4324
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2516 -ip 2516
                  1⤵
                    PID:3164
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3584
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:5240
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:908
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 5240 -s 520
                              3⤵
                              • Program crash
                              PID:976
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:732
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2996
                              • 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:4268
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5240 -ip 5240
                              1⤵
                                PID:884
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3664 -ip 3664
                                1⤵
                                  PID:3428
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4364
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:5132

                                    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\WABu40Ytt1TV.bat

                                      Filesize

                                      208B

                                      MD5

                                      8594c53579cb64795d0dfc56e9379474

                                      SHA1

                                      3161e83efb1af69a24813ad151c3245516e08625

                                      SHA256

                                      de4a004bb1dd15ba9ae7a9bc9e55b73b51016a16a4df66773b931ce4a524fd5e

                                      SHA512

                                      d07c3faede21c03d83569ff6c5054bd709f56d371eedbf70f9ed3d619208e611d10ca20951527415f0c33d92276f1364bed338ee9ca7ad3831302ee5a3d4e404

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

                                      Filesize

                                      208B

                                      MD5

                                      0a2441c56ff23b3a92a1e9dbf8666313

                                      SHA1

                                      b216443e5ff2479ca70a4030b4b76823ccc0b6ea

                                      SHA256

                                      a7a911c69f34c138cfcbceeec7f1819075286b0be45368c2b034ff13a3edc5ab

                                      SHA512

                                      b4cc0cef4f5a0a694d8b544860260582a6a2908330fd6866723715c79b84a7a2e05a02d1026a0dde76267c6c64d5d23e3d485c4a75fbc191e85304fd89b18880

                                    • 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\09-05-2024

                                      Filesize

                                      224B

                                      MD5

                                      153dbdff185a36ae3dd069bb982d236e

                                      SHA1

                                      f1e638fb319a13a4301c5f5bdc83be50270519f2

                                      SHA256

                                      7e88970b309781880bcf52796a992e59089ce8c9fa692c3da93c8518ce7b3fc4

                                      SHA512

                                      37646a0934b300abba6a60fbf29851ca7361b6133772d5fc0518cd88fbd5e03a842213d8dbf28b76c59a2fdb18920714bb203f10d6af7a8db5263d2c42e145d8

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      17640b0b7785efa86c9343fc0fb98610

                                      SHA1

                                      2e11569c8cff3e043ba556eb59b50cde4e112900

                                      SHA256

                                      92f38f5910e403c7360a04b63b682f5f8d0933e91f00a4ce283217267a78858d

                                      SHA512

                                      27a93ee99f30594d935ecbb15d224bcb09f1672afa8ee057d06399fd13ab970940916f0a38c1a19c58e9c4f5207373bd7e383e5787178e66a8d3b6073a644862

                                    • memory/2192-20-0x0000000000BD0000-0x0000000000BF0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2192-28-0x0000000000BD0000-0x0000000000BF0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2516-45-0x0000000005F00000-0x0000000005F0A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2560-85-0x0000000073EF0000-0x0000000073EFB000-memory.dmp

                                      Filesize

                                      44KB

                                    • memory/2560-19-0x0000000003DE0000-0x0000000003DE1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2996-74-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2996-80-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/5420-29-0x0000000072C8E000-0x0000000072C8F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/5420-37-0x0000000005EA0000-0x0000000005EDC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/5420-36-0x0000000005960000-0x0000000005972000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/5420-35-0x0000000004D40000-0x0000000004DA6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/5420-34-0x0000000004CA0000-0x0000000004D32000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/5420-33-0x00000000051B0000-0x0000000005754000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/5420-30-0x0000000000320000-0x000000000037E000-memory.dmp

                                      Filesize

                                      376KB