Analysis

  • max time kernel
    4s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 17:29

General

  • Target

    997e7eb0db00d9cf3b7147f31bc09860N.exe

  • Size

    2.0MB

  • MD5

    997e7eb0db00d9cf3b7147f31bc09860

  • SHA1

    d460e0dd74de6fac3cacd527b40022f89be51c00

  • SHA256

    f36de50dbad73f41dcc58b6f2246227e55b9381ea6d30ecc0622bc446c166a91

  • SHA512

    58040bdee6d100615307e545c29c784f8176b60575b1f3cdb29291bde6ba93c1787f65d74d7cdd53845f620c3eef6ed6aab31ae9ebbbf43845017bfe4192b482

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yy

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 2 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 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 3 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 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 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\997e7eb0db00d9cf3b7147f31bc09860N.exe
    "C:\Users\Admin\AppData\Local\Temp\997e7eb0db00d9cf3b7147f31bc09860N.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:4544
    • 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:4340
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 552
          3⤵
          • Program crash
          PID:1568
      • 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
        PID:4964
        • 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:1916
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:516
            • 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:2480
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3mntJo2Dq4Sj.bat" "
              4⤵
                PID:1484
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:3456
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:2716
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:3212
                      • 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:4580
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5noG6lDRCxC1.bat" "
                        6⤵
                          PID:2436
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            7⤵
                              PID:3384
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              7⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:4364
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              7⤵
                                PID:2900
                                • 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
                                  8⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:636
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\t0AgLtCPSbAg.bat" "
                                  8⤵
                                    PID:620
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 65001
                                      9⤵
                                        PID:4352
                                      • C:\Windows\SysWOW64\PING.EXE
                                        ping -n 10 localhost
                                        9⤵
                                        • System Network Configuration Discovery: Internet Connection Discovery
                                        • Runs ping.exe
                                        PID:1544
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 1960
                                      8⤵
                                      • Program crash
                                      PID:1508
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 3212 -s 2232
                                  6⤵
                                  • Program crash
                                  PID:3388
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 516 -s 1084
                              4⤵
                              • Program crash
                              PID:4528
                        • C:\Users\Admin\AppData\Local\Temp\997e7eb0db00d9cf3b7147f31bc09860N.exe
                          "C:\Users\Admin\AppData\Local\Temp\997e7eb0db00d9cf3b7147f31bc09860N.exe"
                          2⤵
                          • System Location Discovery: System Language Discovery
                          PID:1040
                        • 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:2360
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4340 -ip 4340
                        1⤵
                          PID:2376
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          1⤵
                            PID:4972
                            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                              2⤵
                                PID:3092
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k
                                  3⤵
                                    PID:1432
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 520
                                    3⤵
                                    • Program crash
                                    PID:1424
                                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                                  2⤵
                                    PID:4428
                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                    2⤵
                                      PID:2664
                                    • 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:3976
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3092 -ip 3092
                                    1⤵
                                      PID:4820
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 516 -ip 516
                                      1⤵
                                        PID:3012
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3212 -ip 3212
                                        1⤵
                                          PID:1424
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2900 -ip 2900
                                          1⤵
                                            PID:4964

                                          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\3mntJo2Dq4Sj.bat

                                            Filesize

                                            208B

                                            MD5

                                            fdff1d7378cd3606978e6c8929f7df2b

                                            SHA1

                                            2ce5e0e253e2e5e5323bd8b202a34a6383648bea

                                            SHA256

                                            9a1b2dd146f7a089504bc2050a5b8949a6b6747cbc5119d711d03f649b431ff3

                                            SHA512

                                            6a1def49408c07a1542eb33521c31b22dfbd105c72ff19f0531cba12ae02819e5a172d6da9900ff598454d6a329c68c21efd1321a240e502800c00a485a013db

                                          • C:\Users\Admin\AppData\Local\Temp\5noG6lDRCxC1.bat

                                            Filesize

                                            208B

                                            MD5

                                            6e04792becadace0db4637962db2de08

                                            SHA1

                                            e49b7ff7575551dbd0f0472f35227b5eaa07a6d0

                                            SHA256

                                            018f85fb9453ade2af2ba9d419dcd3596f0730160d0df70d667177297fe73034

                                            SHA512

                                            c650c3c5837fa5284676ac726067fe825e0a234b597e64c46d3281bca45891d08c762e8df4aa26b64aa7f61e3409fb6dc7e59d2be3751db03253a6c28b03beed

                                          • C:\Users\Admin\AppData\Local\Temp\t0AgLtCPSbAg.bat

                                            Filesize

                                            208B

                                            MD5

                                            d078d9afd2f60c8c7857bb0ab6c55148

                                            SHA1

                                            8493f5598cfa84f1f2603719350792f0f04a9525

                                            SHA256

                                            8c97f9df50635444324d7380383af4c501f244e2f7213237c87fa5da61756d05

                                            SHA512

                                            288a3e972cc84a6cc144e4bfc1084798b9fe19fd897ae8197cf63c52ac737e5500ed92b52c386eda662bcf4a02a1d8b84924d16fdcb9f0b9c5aa273d5b782e44

                                          • 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\09-01-2024

                                            Filesize

                                            224B

                                            MD5

                                            1484e56b355fcb5b419ef283c879dba4

                                            SHA1

                                            71c3821c3a50f968859f9e2c3126ab004b7cd612

                                            SHA256

                                            b7e65091421a0403cbaeab13eb580a09a8201207cd193c04826161960433c787

                                            SHA512

                                            e9c5766fcf791fb550aaa21fb7d1333b16a501e6ab8be74ee785cd6439fad6f9e8b5cbb8b0802081311363778e84ce516428ad4fc6548f2ed01ebd4b762228ef

                                          • C:\Users\Admin\AppData\Roaming\Logs\09-01-2024

                                            Filesize

                                            224B

                                            MD5

                                            ecfa7f4acfd0730ee89b9a7806511996

                                            SHA1

                                            1ed0878c95e0f609876eff9b4cf12c88e9b8bf01

                                            SHA256

                                            029b9e090188e31d5707dc4b69038808decd3ecfd76556c221375ff5c8a97008

                                            SHA512

                                            92c4a154189c14cb7e2791c3efda567c7492274b855460770a4ba24335d25d9931027ceb26c36e7aab7964928ef0657a119f46a04941d09479d293991e977cf6

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            baa5a62fa7c619060e00c3ba12903527

                                            SHA1

                                            40cad01636f42ae249a6ec20f5fd3dd05795fa75

                                            SHA256

                                            0726fbca0f60bd7db8c1f525c1e3726ee0e7b5886870f0d723629c5aa63a2d25

                                            SHA512

                                            5518e85deec72eae80dd1ffa011799f10f77b762ed39a5f5860f91fe411cfe8e61c1011c82e7ea53e29306dff7e34946560b1a058bfc589c6d3cf1b8d6fc4b55

                                          • memory/516-45-0x00000000060A0000-0x00000000060AA000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/1040-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/1040-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4544-19-0x0000000003B70000-0x0000000003B71000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4964-29-0x000000007306E000-0x000000007306F000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4964-37-0x00000000065B0000-0x00000000065EC000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/4964-36-0x0000000006070000-0x0000000006082000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4964-35-0x0000000005350000-0x00000000053B6000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/4964-34-0x00000000053D0000-0x0000000005462000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/4964-33-0x0000000005980000-0x0000000005F24000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/4964-30-0x0000000000A40000-0x0000000000A9E000-memory.dmp

                                            Filesize

                                            376KB