Analysis

  • max time kernel
    4s
  • max time network
    81s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 00:15

General

  • Target

    47276e3f09e9d74b9b3bdc5af14886f0N.exe

  • Size

    2.0MB

  • MD5

    47276e3f09e9d74b9b3bdc5af14886f0

  • SHA1

    84e91771e5c095cb411aaf032492cea3c9f4c2c5

  • SHA256

    520428b141c199cae7d324aa0bb07eec16fb7225763e2253259b2313f016376f

  • SHA512

    881e2ab74ce23acc9d5937e72210e977876366f39cb8c423d7bdee8787bb8e87a4db4a2895ca73739c43f52e64e4ebe8cc051c0a0793b1bbc25d4150e51c544a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY0:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

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 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 3 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\47276e3f09e9d74b9b3bdc5af14886f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\47276e3f09e9d74b9b3bdc5af14886f0N.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:1856
    • 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:1840
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 544
          3⤵
          • Program crash
          PID:2416
      • 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:808
        • 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:4884
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1036
            • 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:5032
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\fSgpskp2rmIR.bat" "
              4⤵
                PID:1056
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:736
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:3120
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:2200
                      • 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:4824
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 2004
                    4⤵
                    • Program crash
                    PID:968
              • C:\Users\Admin\AppData\Local\Temp\47276e3f09e9d74b9b3bdc5af14886f0N.exe
                "C:\Users\Admin\AppData\Local\Temp\47276e3f09e9d74b9b3bdc5af14886f0N.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:1280
              • 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:3328
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1840 -ip 1840
              1⤵
                PID:3312
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:396
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4488
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3236
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 520
                          3⤵
                          • Program crash
                          PID:2344
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:2288
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:4176
                          • 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:548
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4488 -ip 4488
                          1⤵
                            PID:1008
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1036 -ip 1036
                            1⤵
                              PID:436
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:5004
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:1504

                                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\fSgpskp2rmIR.bat

                                  Filesize

                                  208B

                                  MD5

                                  29c1c9d94761bf35c5a697813f01bb32

                                  SHA1

                                  e48e35093524a0c1a0f5a8cb868cd6c45592bc9d

                                  SHA256

                                  ae8e341634ec6dcb1f0d357f4872ce4ae1ce4f24da2e298813886f28fbba2147

                                  SHA512

                                  085a5791ba27916d44554e27d84180edd266f8cc21aff85eb34a58721e32b26b436c744a8304ecd24ca65232f129bb61a37c02861fa91b76cd49c2adf4f2329b

                                • 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\08-15-2024

                                  Filesize

                                  224B

                                  MD5

                                  77542bdc49e188ee6ffeb90cdbb8fce0

                                  SHA1

                                  1e2266d206fe93c93a93fc8f2cd66963988ed2ab

                                  SHA256

                                  b715bc4bb309d0e2243e9d0594656abb38c5c8cd7ff719cda595940032fe9fc1

                                  SHA512

                                  59da078b7dc2077d880ceb2cfb68c089b16e2511b439ba627685218e78f808298f1fc76c7c134b54a7ce7a4fecbe0f60f136691fc17d96d09c49b859d66c72eb

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  8a308419267f14fbaa6e7109125e4c6f

                                  SHA1

                                  94c5d52f74d3c87cc547b4e2e94177ff7e326744

                                  SHA256

                                  926939ece6e6ba79fa7fae059a1be2b5cd139f2c11a0858ebea78700b828d6bc

                                  SHA512

                                  b1b7e56f4cca3bb209d6049b024ef06ebc5998c08110f3c3c5cc6a39178b6da5cc9633d330d6199dc1db926b95c522120d469900ec5fb2f6093d7f671cd6f8f7

                                • memory/808-36-0x00000000054E0000-0x00000000054F2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/808-34-0x00000000050F0000-0x0000000005182000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/808-35-0x0000000005190000-0x00000000051F6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/808-30-0x0000000000660000-0x00000000006BE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/808-37-0x00000000062D0000-0x000000000630C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/808-29-0x000000007332E000-0x000000007332F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/808-33-0x0000000005520000-0x0000000005AC4000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/1036-66-0x0000000006100000-0x000000000610A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/1280-19-0x0000000000870000-0x0000000000890000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1280-27-0x0000000000870000-0x0000000000890000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1856-74-0x0000000004450000-0x0000000004451000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1856-28-0x0000000004450000-0x0000000004451000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4176-67-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4176-73-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB