Analysis

  • max time kernel
    6s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 17:21

General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • MD5

    eca602f0dfc4e52d5197849d0a774204

  • SHA1

    a928a82531d4ac3dd9e7fff4527fd5e77064bf12

  • SHA256

    31effd6b72a450f574df2135febd03b9f5315a75be9420731f40df8e5086dba3

  • SHA512

    7a87198c29baac0336c4eb060c33bf0485675cf6a14e2a4ae58fc966f7e61c8b3b7f05a4b7cce9eb74fbe39df7702a4a3d16e6a6dd6da23ab3dd0f8d6e5288ed

  • 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\SystemPropertiesPerformance.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.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:4708
    • 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:4772
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3692
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 548
          3⤵
          • Program crash
          PID:4060
      • 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:3188
        • 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:3216
        • 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:3496
          • 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:4472
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9SKkllUy7zDr.bat" "
            4⤵
              PID:220
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1448
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4624
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2624
                    • 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:4964
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DxUwKuHHAqq4.bat" "
                      6⤵
                        PID:1632
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:404
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2208
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 2252
                          6⤵
                          • Program crash
                          PID:2108
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 2024
                      4⤵
                      • Program crash
                      PID:904
                • C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.exe
                  "C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4256
                • 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:2624
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4772 -ip 4772
                1⤵
                  PID:3376
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2720
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2920
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1164
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 520
                            3⤵
                            • Program crash
                            PID:2880
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:744
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:684
                            • 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:3204
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2920 -ip 2920
                            1⤵
                              PID:3212
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3496 -ip 3496
                              1⤵
                                PID:2620
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2624 -ip 2624
                                1⤵
                                  PID:836

                                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\9SKkllUy7zDr.bat

                                  Filesize

                                  208B

                                  MD5

                                  302abeb6997cb99627f914635ce8d4c9

                                  SHA1

                                  9a4bb52cacec5a96d240daada702eaee215d82d4

                                  SHA256

                                  60f1676637c190a4a068e29bc6ab35790213f80a8cc4b18ab221028ec21cb3c1

                                  SHA512

                                  c71b4a03a287013c4bbf6312c5b68a5096c081bdfb394eaf478ff4f3af8b6dd486eec84f5215163653378dc8dde2c6dcadda5600123bec89c8e59bcb7be92ed6

                                • C:\Users\Admin\AppData\Local\Temp\DxUwKuHHAqq4.bat

                                  Filesize

                                  208B

                                  MD5

                                  676eec884684c7ec302742346dd1a9fd

                                  SHA1

                                  315e705c2cf172530c68867280649ac1a1f45cab

                                  SHA256

                                  d957d434d788656e4b8cc4be4eae9f8757fb1802831933084521732df978f431

                                  SHA512

                                  12586610955bc60c669f0371fec433333824583f8a9e9388ce30081946c8791f047619a03f531dfe40ee6a49be1862f565d833cb76817775be33f8217bcec416

                                • 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\09-16-2024

                                  Filesize

                                  224B

                                  MD5

                                  63edce5617dbfbb31325e567aa6d2848

                                  SHA1

                                  5edf80f9a88f2d69d9c8e5a20e0d41e1eba91ffe

                                  SHA256

                                  9c29b3ee844bb32314b32b5cc81b6f4d799403975fbc4a88d6dd2b4042edd0da

                                  SHA512

                                  8e1470da85814469a2c118d50d7605af3ca11c3a51876e16e605c52fbd0bd73d4cf5d735807a771d68c2b4b2dddf478e74f70a4c64f0452abccede7248d78eda

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  9a3797978cbc118dbad52ff1fb898cb9

                                  SHA1

                                  08b0d7beabfa00696f2dacc47ca54562c43b521d

                                  SHA256

                                  5b3e371c09f8dec9455294a307a33f792f780e186ccb8db85abd2c17f7888a37

                                  SHA512

                                  cedeba93c1ec1fbf8203e6a2e326b46b7119ce77d2f65704f82488936b68d9b83d5923490f46d27cf225c4e0dfe3f9b985d31938dbe7ba8f7dbe582bdb658692

                                • memory/684-72-0x0000000000800000-0x0000000000820000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/684-66-0x0000000000800000-0x0000000000820000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3188-34-0x00000000052B0000-0x0000000005316000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/3188-36-0x0000000006410000-0x000000000644C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/3188-35-0x0000000005720000-0x0000000005732000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/3188-33-0x0000000005210000-0x00000000052A2000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/3188-32-0x00000000057C0000-0x0000000005D64000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/3188-31-0x0000000000890000-0x00000000008EE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/3496-44-0x0000000006020000-0x000000000602A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4256-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4256-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4708-19-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

                                  Filesize

                                  4KB