Analysis

  • max time kernel
    5s
  • 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
    17-08-2024 23:59

General

  • Target

    680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb.exe

  • Size

    2.0MB

  • MD5

    4d8f70fe03157ace7ecbd9abfb39cf9a

  • SHA1

    aaa0c1ed6c4df91238f7dc9d1165955f87290e2d

  • SHA256

    680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb

  • SHA512

    2a408557ed509e7015ea900872dcae8a89cf0945cc6083f269de9b36cda0c6cbc6f202e060e40d8f515cf3dae25ff7dca1546d08f477535221341b2d906beac7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYE:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yu

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 3 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 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb.exe
    "C:\Users\Admin\AppData\Local\Temp\680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb.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:1596
    • 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:4324
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 548
          3⤵
          • Program crash
          PID:3224
      • 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:4288
        • 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:1632
        • 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:4936
          • 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:3796
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\iFWAhLo0UA4z.bat" "
            4⤵
              PID:572
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4736
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4912
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4324
                    • 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:2444
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1988
                  4⤵
                  • Program crash
                  PID:1828
            • C:\Users\Admin\AppData\Local\Temp\680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb.exe
              "C:\Users\Admin\AppData\Local\Temp\680be4a013071b56389e253a995bc1717c497961bdae2c481cf03acb817f1cdb.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4564
            • 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 428 -p 4324 -ip 4324
            1⤵
              PID:5056
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4936 -ip 4936
              1⤵
                PID:684
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:4760
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4960
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:224
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 520
                          3⤵
                          • Program crash
                          PID:1880
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1680
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:3488
                          • 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:4260
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4960 -ip 4960
                          1⤵
                            PID:3612

                          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\iFWAhLo0UA4z.bat

                            Filesize

                            208B

                            MD5

                            8ac02f75e2388bc14967bcf2b57a189b

                            SHA1

                            901b5df2bb90e145523f8ae70c0926c4d603935c

                            SHA256

                            7837e123c272129de3e9e2aad770b35e4a9dae045561d098098f3565a3f89316

                            SHA512

                            c0f751b834d17d2d4f511058ccf50c5ba37b303b0a87ae6e1ea8ab22f66469596dc1f180080dd8963a4d8e2d7decc6d03a045ecb54f0590f06432b1319cae31a

                          • 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\btpanui\SystemPropertiesPerformance.exe

                            Filesize

                            2.0MB

                            MD5

                            dad5a7f3b83458a926e8bc8d6359883d

                            SHA1

                            f175881bcde2e1c8f7beb6f61d307db87da04153

                            SHA256

                            ebe5eaf39f8517bb0e26ab9be4d26f364f33015a6934cc7b7e3e73f24cdff50e

                            SHA512

                            e62e8a8c102a84f26bb0b743369bdb72b130f17ab5ad61f7869e6d3395e814501d4fd3231b945dc88c29728a608f6740c1660ffc608461312275ad1d277392b1

                          • memory/1596-19-0x0000000004440000-0x0000000004441000-memory.dmp

                            Filesize

                            4KB

                          • memory/1596-46-0x0000000004440000-0x0000000004441000-memory.dmp

                            Filesize

                            4KB

                          • memory/4288-34-0x00000000053A0000-0x0000000005432000-memory.dmp

                            Filesize

                            584KB

                          • memory/4288-33-0x0000000005850000-0x0000000005DF4000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/4288-35-0x0000000005310000-0x0000000005376000-memory.dmp

                            Filesize

                            408KB

                          • memory/4288-36-0x0000000006100000-0x0000000006112000-memory.dmp

                            Filesize

                            72KB

                          • memory/4288-37-0x0000000006640000-0x000000000667C000-memory.dmp

                            Filesize

                            240KB

                          • memory/4288-32-0x00000000009B0000-0x0000000000A0E000-memory.dmp

                            Filesize

                            376KB

                          • memory/4288-29-0x000000007363E000-0x000000007363F000-memory.dmp

                            Filesize

                            4KB

                          • memory/4564-20-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/4564-28-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/4936-45-0x0000000006340000-0x000000000634A000-memory.dmp

                            Filesize

                            40KB