Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 07:24

General

  • Target

    b903668933c741567172b3ae743d9700N.exe

  • Size

    2.0MB

  • MD5

    b903668933c741567172b3ae743d9700

  • SHA1

    d538570d209015150e7a70173836511bcda71706

  • SHA256

    e3ad539cfd95f07d4b15c5b7a0cda4ddab4db2ff31d9311e602b2430bd88e19d

  • SHA512

    bfcc877ad2dea6bf72e1ac83d64c601b8ad2875ecb2e3615cac1db91979cac786da55a94c1304b99cd1848b0e3935f669ab49b971799343d10506f4f8045e200

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YV

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 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\b903668933c741567172b3ae743d9700N.exe
    "C:\Users\Admin\AppData\Local\Temp\b903668933c741567172b3ae743d9700N.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:4088
    • 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:3344
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1036
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 548
          3⤵
          • Program crash
          PID:2744
      • 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:3928
        • 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:4376
        • 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:1304
          • 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:2272
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5dvljKdIJH9f.bat" "
            4⤵
              PID:3472
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2108
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1216
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3808
                    • 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:1436
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\C9uh5DZuswTm.bat" "
                      6⤵
                        PID:3516
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4936
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1296
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3808 -s 2236
                          6⤵
                          • Program crash
                          PID:4840
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 2020
                      4⤵
                      • Program crash
                      PID:1512
                • C:\Users\Admin\AppData\Local\Temp\b903668933c741567172b3ae743d9700N.exe
                  "C:\Users\Admin\AppData\Local\Temp\b903668933c741567172b3ae743d9700N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2720
                • 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:1936
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3344 -ip 3344
                1⤵
                  PID:1564
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:5020
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1912
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4112
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 520
                            3⤵
                            • Program crash
                            PID:2520
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:2096
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4404
                            • 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:4592
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1912 -ip 1912
                            1⤵
                              PID:2932
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1304 -ip 1304
                              1⤵
                                PID:1856
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3808 -ip 3808
                                1⤵
                                  PID:5112
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:664
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4268

                                    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\5dvljKdIJH9f.bat

                                      Filesize

                                      208B

                                      MD5

                                      ff2b98fd0fc735d648f4305404c2278c

                                      SHA1

                                      a76b720032a9ae7d036b92ba096047d922b4861a

                                      SHA256

                                      7c2a9ca8f9f4033eea468fd1caf5f83ddbd6fc8a366d7c3a450a51b132ffab5e

                                      SHA512

                                      8c1e20f8fed7f79655ac28fc0b27f780ad3af716b54ad3d650fb8cd01e45cef7a1d0be1cf3369948e360780dd226fe16822510c8ffa388d8559b81a1f7f2de4e

                                    • C:\Users\Admin\AppData\Local\Temp\C9uh5DZuswTm.bat

                                      Filesize

                                      208B

                                      MD5

                                      f46d887c927da4504be5d8c9835b4480

                                      SHA1

                                      4361968f0d1ca02409a686eeff1ee7ca2f75011d

                                      SHA256

                                      6275d808efaa6f9a8d9ee4c3c1391af7caa7023c08d96ab6c129531db898b028

                                      SHA512

                                      dd7e962b24c07066ac0570c78c41c458d5b7b66cbbcd62eb2ed03aeb0d645df90a3f2964fd7170d32f45f9c587507b5e10967a6d09a47e8431cd320c5700020b

                                    • 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\09-10-2024

                                      Filesize

                                      224B

                                      MD5

                                      e8d0d236659caa2a2e85099de53ff1b7

                                      SHA1

                                      129ecbd9fc0e00a0958dc63b8cba897405acaa2d

                                      SHA256

                                      ec57aa1d4d50864ea0b202db4cb68730f5b395c934535c836f344be6c5ab769c

                                      SHA512

                                      f274d06dccb834bb158f6ea5469adaafb313902886d7c6a79d35ea30b63a4f5d91ad696f29782576a37c82f470faf54fbabc5f29430f1a96a7ae9fd934ad776c

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      686df430d81821e1b5a607df6ac54dee

                                      SHA1

                                      2ecc0929b0cd84aea4eeabcfbfb04a3d7854dbbf

                                      SHA256

                                      d6b97992bfb0d28af01bc6ca81ab0d40575ed14816b687715a686111353b6289

                                      SHA512

                                      882483bd0e6278b563d56f2bae701c8d62a98225636b64ddeac84f649a73a46ec23b7eab4cf6d485afdb87ba7bd4a10b30eaf95da75f740d86685fef76f51177

                                    • memory/1304-45-0x00000000066C0000-0x00000000066CA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2720-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2720-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3928-34-0x0000000004CD0000-0x0000000004D62000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/3928-37-0x0000000005E80000-0x0000000005EBC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/3928-35-0x0000000004C30000-0x0000000004C96000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/3928-33-0x0000000005150000-0x00000000056F4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/3928-30-0x0000000000310000-0x000000000036E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3928-36-0x0000000005940000-0x0000000005952000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/3928-19-0x00000000729EE000-0x00000000729EF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4088-20-0x0000000003B90000-0x0000000003B91000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4088-90-0x00000000767D0000-0x00000000767F4000-memory.dmp

                                      Filesize

                                      144KB

                                    • memory/4088-91-0x0000000073E30000-0x0000000073E48000-memory.dmp

                                      Filesize

                                      96KB

                                    • memory/5020-87-0x0000000076DD0000-0x0000000076EB3000-memory.dmp

                                      Filesize

                                      908KB

                                    • memory/5020-89-0x0000000073780000-0x00000000737C9000-memory.dmp

                                      Filesize

                                      292KB