Analysis

  • max time kernel
    4s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 08:54

General

  • Target

    5cdb6eaba865181f68a4a7ae7ad99020N.exe

  • Size

    2.0MB

  • MD5

    5cdb6eaba865181f68a4a7ae7ad99020

  • SHA1

    369d5edccb4384260a7bd85e89655070c7f6d0f6

  • SHA256

    1ff8a9954827b008463b168dbdac495a0b5412f8785ccec8cec59bacbfc1a71f

  • SHA512

    db18426cef69b6df973bef9805c986d55876c401253b87c0724b2522e9bd3863e66b3c607f84c44289251add815169e1225c0e1b7d546dadc7c6800bf94152d8

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYn:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yl

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\5cdb6eaba865181f68a4a7ae7ad99020N.exe
    "C:\Users\Admin\AppData\Local\Temp\5cdb6eaba865181f68a4a7ae7ad99020N.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:2456
    • 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:2440
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 548
          3⤵
          • Program crash
          PID:4164
      • 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:1696
        • 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:2068
        • 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:1796
          • 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:4676
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mOhLgiBdoXZG.bat" "
            4⤵
              PID:1576
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2280
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1400
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2804
                    • 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:4996
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\lqpNqGP13Zk4.bat" "
                      6⤵
                        PID:3608
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:556
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:224
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 2276
                          6⤵
                          • Program crash
                          PID:3432
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1796 -s 2264
                      4⤵
                      • Program crash
                      PID:2780
                • C:\Users\Admin\AppData\Local\Temp\5cdb6eaba865181f68a4a7ae7ad99020N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5cdb6eaba865181f68a4a7ae7ad99020N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4152
                • 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:1912
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2440 -ip 2440
                1⤵
                  PID:1668
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1796 -ip 1796
                  1⤵
                    PID:4060
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:988
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:984
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:3672
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 984 -s 520
                              3⤵
                              • Program crash
                              PID:1712
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:780
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3408
                              • 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 476 -p 984 -ip 984
                              1⤵
                                PID:1100
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2804 -ip 2804
                                1⤵
                                  PID:2680
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:5064
                                    • C:\Windows\explorer.exe
                                      explorer.exe /LOADSAVEDWINDOWS
                                      2⤵
                                        PID:4968
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4692
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:2020

                                        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\lqpNqGP13Zk4.bat

                                          Filesize

                                          208B

                                          MD5

                                          72de13e127c98b282ba3f7b5ab2fd177

                                          SHA1

                                          193938a19e5c88c91cbef3135ec744713e4866c5

                                          SHA256

                                          500fb7a3e5457f5f38fb1b8c99636ce5f10c1fbaea8d470306a3950781279dc2

                                          SHA512

                                          7ab45fecbb4631ef535ec313c71b0909d6f93bfc42b49a0e9410eecb6ceb6ebea75dadd27e2835b6282b15e29bc742b7200ea82d521438665328b3a68c216f26

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

                                          Filesize

                                          208B

                                          MD5

                                          010b7ff66026871c363a66a4261b604b

                                          SHA1

                                          ba6593766ac61c04a685c17f19807d1157625c90

                                          SHA256

                                          3866d7b742b9ccefea3cb4657db4731f999e49e7bbfc93f9179404712de7ba2d

                                          SHA512

                                          544d8303e63f228a108037914d05273d244b503f466b6ce90b93588405d4071bc86f10a984ee153a0e38fb77a8fa76555c3df0a8a490ce10f2900a3481a2eb63

                                        • 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\08-01-2024

                                          Filesize

                                          224B

                                          MD5

                                          788fcb0a7d36b8c1eeda53438983c643

                                          SHA1

                                          96b0ba2ee193674fb2ccc35a88645e0b8fe0a7b0

                                          SHA256

                                          13dffc7b2202348339c0f87a1064cdf76ab674050bc31eb46d58bf90ab05fdcc

                                          SHA512

                                          b5e4a7989b47e0dd1a79c1ee93cd34971a7fd441294818b03a0b8d6bc52026969fbd8332abefdb7acce90772e2cf4414ca8835cd5ed50a6465093de3fb949b34

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          381e3e9a8aad9214cfb5a8e18c08c3b9

                                          SHA1

                                          bbe603cd06c3aae180b001304a4613097c7e6383

                                          SHA256

                                          dfc24d2b60fd3a90fee62e1ad45d49e5a5381ba18399588275c27f8c28cb2c81

                                          SHA512

                                          bbd4e6fa27e2e9dc4d1dc894820167b589030ad458e6ddade0a5984a59799e756def94819cb4a8226a2f1ba1a5e4125863f0020995b44d6e874830059dc992ea

                                        • memory/1696-30-0x00000000004B0000-0x000000000050E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/1696-34-0x0000000004DD0000-0x0000000004E62000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/1696-35-0x0000000004E70000-0x0000000004ED6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/1696-36-0x0000000005430000-0x0000000005442000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1696-37-0x0000000006030000-0x000000000606C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/1696-33-0x00000000054A0000-0x0000000005A44000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/1696-29-0x000000007338E000-0x000000007338F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1796-45-0x0000000006380000-0x000000000638A000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/2456-19-0x00000000011F0000-0x00000000011F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/4152-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4152-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB