Analysis

  • max time kernel
    5s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-08-2024 20:28

General

  • Target

    6a41ccf9673f3a80a5ed0a16d7963380N.exe

  • Size

    2.0MB

  • MD5

    6a41ccf9673f3a80a5ed0a16d7963380

  • SHA1

    27dc33431ab5fd657d13530a9c051d6849366744

  • SHA256

    af862c3bf344c477c5d0a1775f184db3221c7030077790d8fe14a072069ea162

  • SHA512

    377b575f656d4b6d8528a838ca5eac94fa8d6f22f887b558ec1939a6a4658ebd10023c3c8ec84fb455f3ea803c3681c7f265e15e479c0bba31a7398f604d3872

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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 3 IoCs

    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 2 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 7 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\6a41ccf9673f3a80a5ed0a16d7963380N.exe
    "C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.exe"
    1⤵
    • Quasar RAT
    • 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:2232
    • 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:4944
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 544
          3⤵
          • Program crash
          PID:3728
      • 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:2776
        • 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:3704
        • 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:3352
          • 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:2024
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\oCd1jTini3q5.bat" "
            4⤵
              PID:1140
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4840
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2764
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:5104
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 2276
                  4⤵
                  • Program crash
                  PID:1912
            • C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.exe
              "C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:32
            • 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:4996
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4944 -ip 4944
            1⤵
              PID:2108
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3352 -ip 3352
              1⤵
                PID:1196
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3664
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:3028
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2876
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 520
                          3⤵
                          • Program crash
                          PID:1932
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1384
                          • 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:3204
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:3304
                              • 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:756
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8LwR0RXrtD8H.bat" "
                                4⤵
                                  PID:2132
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    5⤵
                                      PID:1132
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      5⤵
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:1628
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      5⤵
                                        PID:936
                                        • 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:3200
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2268
                                      4⤵
                                      • Program crash
                                      PID:3548
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:1436
                                  • 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 528 -p 3028 -ip 3028
                                  1⤵
                                    PID:2240
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3304 -ip 3304
                                    1⤵
                                      PID:4940
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1116
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:5104

                                        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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                          Filesize

                                          701B

                                          MD5

                                          5de8527438c860bfa3140dc420a03e52

                                          SHA1

                                          235af682986b3292f20d8d71a8671353f5d6e16d

                                          SHA256

                                          d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                          SHA512

                                          77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                        • C:\Users\Admin\AppData\Local\Temp\8LwR0RXrtD8H.bat

                                          Filesize

                                          208B

                                          MD5

                                          409ad0bdfd7031ae62237fd71db74424

                                          SHA1

                                          48e98bc4219ede9c4296c7891dab963fb7e0bfbd

                                          SHA256

                                          f9f35aa6e32dbf80b43fd1826c7ebc7986679ad5e5bba0f353ecd1f9340b8e01

                                          SHA512

                                          a24f90e8f16de8eaa4a3338aab21a348c2f7d7b62e92035f6487cf52ba45b8b66cd0753d95f846c76faab914da775a3caf947f6e6db0ad7b563c4eae8ad57290

                                        • C:\Users\Admin\AppData\Local\Temp\oCd1jTini3q5.bat

                                          Filesize

                                          208B

                                          MD5

                                          5090b1b0bbc2c174bb557ea3c11fa3dc

                                          SHA1

                                          653067a348a351aaf6ff5e92ae960c4c97aaa1c7

                                          SHA256

                                          37e4abc72dcaec91f937b8925129b98722e101df5a2b6c35f6884beca825d21e

                                          SHA512

                                          a99388c5a8e0e107d420d93ef145910e47e7babe933dc98193f3018107f8fc2d5a40b44f38ed2bf8fef16cf83d1572881e07e5839280e943bcb48442b48807f9

                                        • 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\08-26-2024

                                          Filesize

                                          224B

                                          MD5

                                          88a61861ce91d58ff563d1e3a4696428

                                          SHA1

                                          8e45bff78c9a84c803e0a99f8e184ea27bb00269

                                          SHA256

                                          ef91a2cb5b3613e692ee4d1c01943cc43a524b10d7f320825a98a16c7aa87228

                                          SHA512

                                          919028d5d00d5762162bf99d0d52d201a12cdbbaac3a5c5800b95b5e7186f4688d5d1ace18fb2d14b6c6b76630dc4a1d9f9d7eccf42b8a668d7fd44c833ea466

                                        • C:\Users\Admin\AppData\Roaming\Logs\08-26-2024

                                          Filesize

                                          224B

                                          MD5

                                          aa252ba788d112c079430559231cf6db

                                          SHA1

                                          27a9565d97f14c15eeec41dd08694a7050d0f160

                                          SHA256

                                          19eb5989085f53e2da59793447a4b3a4429dfd09dcc38a065de890b35f10a6f2

                                          SHA512

                                          476a9b00dd194929db44f53dfbe9a681c55ceb5644638a0827f63350d00bb52c6be90a863d0e1f82b8f0ed8aaa8d24497aed42d2832d4aebf433abad2ca70c82

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          1a6bf47c85a5d16a7921f37162048b73

                                          SHA1

                                          64f09d51a144b4bd9be902b51d66f6dc888221fc

                                          SHA256

                                          6e485dfc1cc54595d4e84ec15a4f281f2be33db94e7551a0cbaafc4c58da375f

                                          SHA512

                                          811976becc0ce0de7c421df8697a95272d66c372c5cd552c5eb3a778f59af118ab4f0d8f0d9295d308c74a0f42b31601774fbdf20f6906f0c531d9b765843216

                                        • memory/32-28-0x00000000008B0000-0x00000000008D0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/32-20-0x00000000008B0000-0x00000000008D0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1436-71-0x00000000002E0000-0x0000000000300000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1436-77-0x00000000002E0000-0x0000000000300000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2232-19-0x0000000003B00000-0x0000000003B01000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2776-29-0x00000000731EE000-0x00000000731EF000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2776-37-0x0000000005E90000-0x0000000005ECC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/2776-36-0x0000000005950000-0x0000000005962000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2776-35-0x0000000004D60000-0x0000000004DC6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/2776-34-0x0000000004C50000-0x0000000004CE2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/2776-33-0x0000000005160000-0x0000000005704000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/2776-30-0x00000000001C0000-0x000000000021E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/3352-45-0x0000000006240000-0x000000000624A000-memory.dmp

                                          Filesize

                                          40KB