Analysis

  • max time kernel
    5s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 17:27

General

  • Target

    5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2N.exe

  • Size

    2.0MB

  • MD5

    8e1f86bec1300fb9fe2f3ff2d31ab3b0

  • SHA1

    6051b54e859a3df854b4c171812a5dc37f440123

  • SHA256

    5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2

  • SHA512

    e1defa736fb9edf28218eda9839489ee74fd6fdb54ae80d449f656aa723c5052d9cc893975be5c0a51affdc0895a16145e184a1f6df79d4aff3d4a1a52f5932e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YN

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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\5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2N.exe
    "C:\Users\Admin\AppData\Local\Temp\5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2N.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:636
    • 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:4704
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 548
          3⤵
          • Program crash
          PID:4724
      • 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:4012
        • 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:2636
        • 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:3064
          • 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:2964
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gB5tN7wLwZxY.bat" "
            4⤵
              PID:708
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2232
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1960
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:876
                    • 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:1572
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jL1xmZ3NvS4a.bat" "
                      6⤵
                        PID:2972
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3400
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2308
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 1976
                          6⤵
                          • Program crash
                          PID:2052
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 2256
                      4⤵
                      • Program crash
                      PID:4884
                • C:\Users\Admin\AppData\Local\Temp\5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5030311ed5ff8f6174f03228a3e36c8f92b63ac1a76687218b95498689e13cf2N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4508
                • 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:4700
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
                1⤵
                  PID:752
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3064 -ip 3064
                  1⤵
                    PID:3136
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2564
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:912
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:1080
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 520
                              3⤵
                              • Program crash
                              PID:3760
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:660
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3600
                              • 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:212
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 912 -ip 912
                              1⤵
                                PID:3540
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 876 -ip 876
                                1⤵
                                  PID:5080

                                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\gB5tN7wLwZxY.bat

                                  Filesize

                                  208B

                                  MD5

                                  411cf9dc49474394c52dbc3a65a85a1b

                                  SHA1

                                  42dd19c89c53ccbe4af47af18c7c7801ae66bc6e

                                  SHA256

                                  f17c6ec0ce5e8477845d0b4e05f4565f33522d0761466f7f77e99f002e4ce4ac

                                  SHA512

                                  a032e11139b712f1cd328c9542a9f49b5a1e27aba3ed0f5f55897fdb6e9ed8c46502e53ec8699eeac4a1b50768b138c59efac17e327564d6d2ec436165acfb41

                                • C:\Users\Admin\AppData\Local\Temp\jL1xmZ3NvS4a.bat

                                  Filesize

                                  208B

                                  MD5

                                  22fd1fb96bd41c31fb0db14e07b78e78

                                  SHA1

                                  3e4699040918438e72b91b6dd6f2802d2fef8e4b

                                  SHA256

                                  8387d87755ae5bb281e9bf4586411f23807fb2df111dd858f29a5a9de3604093

                                  SHA512

                                  a5b386cb106ce42fb8becc52b3036ab2c3a65aa3ebb87b855c8c8fd002766c36928b48ad47e67d70e5f8afe4ac971fcd46d0b6cae19e035ded644c1ca44dc414

                                • 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\09-25-2024

                                  Filesize

                                  224B

                                  MD5

                                  15babb4c7ecf952c16a6ba1f59d1718c

                                  SHA1

                                  d05a1ac74efbc20ee9796dd0de4e2d8fd3fe03ee

                                  SHA256

                                  c932f6a7074dc6ac31329641ecce82b7a550030ed04b4367956b4a0ad0b8f317

                                  SHA512

                                  c5f53e346981da22da213152291d69b0a6027406b2abf51aa832157d5f7e408cec7d8ace206fb8986b0a2689e4e0a9e67da63e8edf59045d1a6e590a03caf80f

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  ac344d541eeab1b0de67e8802e28a5a6

                                  SHA1

                                  f0748c633f7f4eb44a71ba3eb22ec266cd5375fa

                                  SHA256

                                  5b1b43cef8a9f6ba19a4df3de80e7f5f6ebf1c15f258adcc9bf54ab29b9522e0

                                  SHA512

                                  87ac2cc52dd61f56ddf933aab549c7f4af3269b04e82196089c9443e3f39bff337c64928e638d42f9d4acc1659a85a9b3e24ea33e1584e6bba224983d01e8a18

                                • memory/636-19-0x0000000001700000-0x0000000001701000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3064-45-0x0000000006410000-0x000000000641A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4012-34-0x0000000004D80000-0x0000000004E12000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/4012-36-0x0000000005AA0000-0x0000000005AB2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/4012-37-0x0000000005FE0000-0x000000000601C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/4012-35-0x0000000004E50000-0x0000000004EB6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/4012-33-0x0000000005290000-0x0000000005834000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/4012-32-0x0000000000320000-0x000000000037E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/4012-29-0x0000000072BFE000-0x0000000072BFF000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4508-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4508-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB