Analysis

  • max time kernel
    6s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 04:01

General

  • Target

    Adobe Download Manager.exe

  • Size

    2.0MB

  • MD5

    5cb81f5930479b4b6daa723dd729f59b

  • SHA1

    91f08af9c1a54817931c6bfe31a071ce09285447

  • SHA256

    b1244017bdb824546276f693dbff484f27a759ab5ca956735cc1285d15d22269

  • SHA512

    5ef9b31ac77a40666d1b43602c4875c07cbdba16862ace2fdc17cdf938d2bf6b5e6d7eda72ace35b395bebb602bb38d4d296bb511f9d1e24341e9d7f50060012

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYw:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ya

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 6 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\Adobe Download Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.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:3176
    • 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:2388
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3520
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 540
          3⤵
          • Program crash
          PID:4256
      • 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:1760
        • 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:1864
        • 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:3304
          • 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:2212
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bdwS8oiuUE1o.bat" "
            4⤵
              PID:2940
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4088
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3968
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2440
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2240
                  4⤵
                  • Program crash
                  PID:1264
            • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
              "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4264
            • 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:5036
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2388 -ip 2388
            1⤵
              PID:1516
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3304 -ip 3304
              1⤵
                PID:4512
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1332
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:2276
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2196
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 520
                          3⤵
                          • Program crash
                          PID:1132
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:3020
                          • 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:1180
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:2884
                              • 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:5024
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Vcl4IuN7dU5z.bat" "
                                4⤵
                                  PID:3188
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    5⤵
                                      PID:2736
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      5⤵
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:5084
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      5⤵
                                        PID:2176
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 2276
                                      4⤵
                                      • Program crash
                                      PID:4852
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:1216
                                  • 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:540
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2276 -ip 2276
                                  1⤵
                                    PID:4816
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2884 -ip 2884
                                    1⤵
                                      PID:2864

                                    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\Vcl4IuN7dU5z.bat

                                      Filesize

                                      208B

                                      MD5

                                      cd424413f2019d2a7cb6412bb21ea2ac

                                      SHA1

                                      115c78474283f46669f7a372b3d4f05a452e3342

                                      SHA256

                                      c753529efb673c836b1c684840afadad0c2a47b16209091cb97d853ad8ba648b

                                      SHA512

                                      d5192713332e0bf72c564780f6450324ad2451e2bb4ecfa870acf3c5793beaf20f0de6dded069760db8aa44c0befcd482ee87c92af9ff79b066675a957992e46

                                    • C:\Users\Admin\AppData\Local\Temp\bdwS8oiuUE1o.bat

                                      Filesize

                                      208B

                                      MD5

                                      2c6c5456c371ac0b9c485731b23e69f4

                                      SHA1

                                      f97876db0864e986444196cbee87e7ef3ad90c6c

                                      SHA256

                                      32c6f3f71e20b2f50716827b1b73e3de3d34ad9639396bc6583e6b5da446e085

                                      SHA512

                                      6304864c11070301570fc8fc2725f80f5c9370bd55235faecf80d3fdccb666818edc03cd0cadfb513f41e6420aedd52a109576aca07e17c36cfae0a26618fc69

                                    • 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\09-17-2024

                                      Filesize

                                      224B

                                      MD5

                                      98e94bb9965aaef7fd319c07c9581f82

                                      SHA1

                                      c394fc331e5a32d727d59d6a8c407979aebccf38

                                      SHA256

                                      96aae3e6bd9319304ea0708e5bfb7a1d73d9e6baab094c6aeb53cc01723a2eab

                                      SHA512

                                      55234d13daef070920f387a41beb194b8f4b5a4d4d5538a02de725da5c19349fb2800c67c300748eca2c3c30334de7318ecb4a763b563d14bb418cfcb37585be

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      9ca4c3a3724b583ad7140848fb934ddd

                                      SHA1

                                      9bfd5d60f7a4e57cae4f712a9ba665bf182907ca

                                      SHA256

                                      7a6f4d5cb6beedd7c21e80a5fdc5412b2ea4c1378c9ccce64fb3e707f5c15a66

                                      SHA512

                                      a2799ddd22735fc8d436352fa3994a6f8c6b052c3c492c5091ffcb04cdba777c9ed523d12ad99e340301596c897312c8cf7f56bcfee75c6957daf4846a499f5e

                                    • memory/1216-77-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1216-71-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1760-29-0x0000000072B5E000-0x0000000072B5F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1760-36-0x0000000005D00000-0x0000000005D12000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1760-37-0x0000000006240000-0x000000000627C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1760-35-0x00000000050C0000-0x0000000005126000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1760-34-0x0000000005020000-0x00000000050B2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1760-33-0x0000000005530000-0x0000000005AD4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1760-32-0x0000000000570000-0x00000000005CE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3176-19-0x0000000003470000-0x0000000003471000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3304-45-0x00000000063E0000-0x00000000063EA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/4264-28-0x0000000000140000-0x0000000000160000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4264-21-0x0000000000140000-0x0000000000160000-memory.dmp

                                      Filesize

                                      128KB