Analysis

  • max time kernel
    5s
  • max time network
    70s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 10:57

General

  • Target

    be5b4a7cff5f563505bde8e0ea747360N.exe

  • Size

    2.0MB

  • MD5

    be5b4a7cff5f563505bde8e0ea747360

  • SHA1

    2b4e3c1ad8088748d88a55e6bee4f9c151a79d25

  • SHA256

    46fd9bd6ee50f08056743b8b83a12473ea102a5a0711ba551235cc898b1ae12f

  • SHA512

    53c44dbfb5ca64bdbe462ddb4a421646a27c79e411decb7eef00f129e69fadcc8a843ed7a9a1472256987fbcda21102d4a6499873c1cfdeb2f07da710ca9909c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yk

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 7 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 WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be5b4a7cff5f563505bde8e0ea747360N.exe
    "C:\Users\Admin\AppData\Local\Temp\be5b4a7cff5f563505bde8e0ea747360N.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:712
    • 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:392
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1280
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 556
          3⤵
          • Program crash
          PID:756
      • 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:2192
        • 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:4932
        • 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
          PID:5088
          • 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:3268
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EXSEOVc5BwAX.bat" "
            4⤵
              PID:4076
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1232
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4548
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4768
                    • 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:1240
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rRIYvaaF44xa.bat" "
                      6⤵
                        PID:4284
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3980
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4988
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1668
                          6⤵
                          • Program crash
                          PID:4776
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 2008
                      4⤵
                      • Program crash
                      PID:1152
                • C:\Users\Admin\AppData\Local\Temp\be5b4a7cff5f563505bde8e0ea747360N.exe
                  "C:\Users\Admin\AppData\Local\Temp\be5b4a7cff5f563505bde8e0ea747360N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1412
                • 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:1204
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
                1⤵
                  PID:4116
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4740
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1284
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4368
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 520
                            3⤵
                            • Program crash
                            PID:1644
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:2984
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:3548
                            • 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:3348
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1284 -ip 1284
                            1⤵
                              PID:3488
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 5088 -ip 5088
                              1⤵
                                PID:4624
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4768 -ip 4768
                                1⤵
                                  PID:3744

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                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\EXSEOVc5BwAX.bat

                                  Filesize

                                  208B

                                  MD5

                                  341ff448753331d55216052cc99932d4

                                  SHA1

                                  236bf46efc59688719e8ea7bbc107957ac268fa2

                                  SHA256

                                  2aa364bc3acfea9232a8c925a44469e26db1abd52ee32fdfa93092d4af972a96

                                  SHA512

                                  df31174dfde00adc429802fc8df14917af36600c75dc352db27bfa2e8062d926592b2661f2bdd324417875f60f3fffd96611baf42407b87d99604179b4b6554c

                                • C:\Users\Admin\AppData\Local\Temp\rRIYvaaF44xa.bat

                                  Filesize

                                  208B

                                  MD5

                                  41f94fa93d2ee3ed6bd55c83d9afb742

                                  SHA1

                                  097e49ef97f3d4e729d3665abe2842f00a10d652

                                  SHA256

                                  f688c8b3296e43047c23cf5c0ef2871948742751c96deae0a93eafb2c4121451

                                  SHA512

                                  82c56a1590c9d835425b0cd8f09334954fb6991ff52970df174cc744b2d35d7a6ecde9003df6334ef9f6656c322d0b74da8e81bc71c8f7db17371dc85ff97952

                                • 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\08-24-2024

                                  Filesize

                                  224B

                                  MD5

                                  7740aee0708720241cd4c2790fcf168d

                                  SHA1

                                  9cf76d3ee3abf880dfa4bb707789c12fa1214944

                                  SHA256

                                  72721a6114e6bf53ca45fda9c2188886ca1a2d6cc1976978b72d61f1a00f69e6

                                  SHA512

                                  a1a9d4d9cf77d6e55a640ed203b890de3abe614c7d6ca28863612b8ff6d63503dfe97188a53c52760d33bdc60b7a724ca254da2c37531fbd8bb3184763dd646d

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  60b80b759548d9d916e0ac797321baea

                                  SHA1

                                  91dabc29a89f9837d2d222ec6a24a54ed44b9ae0

                                  SHA256

                                  9ca1a0aa1f39938a8fda997b02b15ab5257692ab7ed74b41925a54e37a29556c

                                  SHA512

                                  b54ac9829d45335e234aa00332d1fb6d7ee4261dd284df552097b855558d032f97e9336497f0063c39d7ea0b2f3e717988e874370ee27f92218418ba04b5aa6d

                                • memory/712-19-0x0000000003400000-0x0000000003401000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/712-84-0x00000000771B0000-0x00000000771B6000-memory.dmp

                                  Filesize

                                  24KB

                                • memory/1412-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1412-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2192-36-0x0000000006270000-0x00000000062AC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/2192-35-0x0000000005D30000-0x0000000005D42000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/2192-34-0x00000000050F0000-0x0000000005156000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2192-33-0x0000000005050000-0x00000000050E2000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2192-32-0x0000000005560000-0x0000000005B04000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2192-31-0x00000000006F0000-0x000000000074E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/5088-44-0x0000000006E60000-0x0000000006E6A000-memory.dmp

                                  Filesize

                                  40KB