Analysis

  • max time kernel
    4s
  • max time network
    70s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 09:00

General

  • Target

    5d742cdedccfe75626ce8cbb8244a740N.exe

  • Size

    2.0MB

  • MD5

    5d742cdedccfe75626ce8cbb8244a740

  • SHA1

    14e3a72bd41bb9b419a4e769e0a5326fb9d11e34

  • SHA256

    16676ed439669fbd187acb5eb6af19773f351f62a4502f753a33b931da1ffb5d

  • SHA512

    871ba337e992f1d9704db11a34bdb318629fa30f9a5f70a9fff25b5367d674c8f68f489f7f98429f81a65703423c10db05162b4f785fbdfeaffbfb974bbdef33

  • 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 7 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 WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d742cdedccfe75626ce8cbb8244a740N.exe
    "C:\Users\Admin\AppData\Local\Temp\5d742cdedccfe75626ce8cbb8244a740N.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:4332
    • 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:4204
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 560
          3⤵
          • Program crash
          PID:572
      • 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:1864
        • 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:816
        • 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
          PID:3272
          • 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:3232
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3ILDla7Fdhkx.bat" "
            4⤵
              PID:2288
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:576
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4864
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1192
                    • 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:1952
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MNuAGuAtRj3g.bat" "
                      6⤵
                        PID:4220
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:940
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3908
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 1780
                          6⤵
                          • Program crash
                          PID:1772
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 2272
                      4⤵
                      • Program crash
                      PID:5080
                • C:\Users\Admin\AppData\Local\Temp\5d742cdedccfe75626ce8cbb8244a740N.exe
                  "C:\Users\Admin\AppData\Local\Temp\5d742cdedccfe75626ce8cbb8244a740N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3168
                • 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:3728
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4204 -ip 4204
                1⤵
                  PID:1028
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3272 -ip 3272
                  1⤵
                    PID:2996
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2640
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:3572
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4384
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 520
                              3⤵
                              • Program crash
                              PID:4236
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:5056
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3424
                              • 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:2100
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3572 -ip 3572
                              1⤵
                                PID:2316
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1192 -ip 1192
                                1⤵
                                  PID:4480

                                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\3ILDla7Fdhkx.bat

                                  Filesize

                                  208B

                                  MD5

                                  6da9e7f74a096dcd06cbd7b5d433df58

                                  SHA1

                                  172d15e2e156d4c66df23cac6a593b81c1ed66d1

                                  SHA256

                                  d6eca1327d2d5fab26202da3e0725e9a29f3db5bce0489e03a283a248a18d8fd

                                  SHA512

                                  de03a0691f851c35e5840aab535e69d49693d43feffdab515cc03aae7c29d2006f6630f03d1cf8a7849adbf430be5cbb45f9ad179d960d15a62ccb7572719537

                                • C:\Users\Admin\AppData\Local\Temp\MNuAGuAtRj3g.bat

                                  Filesize

                                  208B

                                  MD5

                                  874ca8d37d83c40373bc819ebdec0dd2

                                  SHA1

                                  8482512b13103b469f3e8e3d07ea14715d775870

                                  SHA256

                                  a44e680bc9ced9924b09fa05433c9624ad018098802af878de8d7e68694f6d1e

                                  SHA512

                                  ec15a979d5435e7d975a0aab01c20f64a16b872b7fa3f02c42648ea5cd7b866a473ba9b362ea07a04de092a8d65c64c46b3c003809672594691758b2da7c6a4e

                                • 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\08-01-2024

                                  Filesize

                                  224B

                                  MD5

                                  32b1cfe05f0a657afa254e83f94faad2

                                  SHA1

                                  2d85d42cc0dad4a82a2e634e5b5bd9df8fbd5eef

                                  SHA256

                                  60b2181dd8caa6a2aea26f2c8ec68774bcaa8277fdf84cd8e3deb178960f9274

                                  SHA512

                                  4059ff347d3a1bb16b47fd40126b0a0873f8cac11e16a9cdf6e353345dee8f8151ff13bd2efca137a7a007278b2f752d3950890a18cd98a7e94cf5274ccb0256

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  4771542a8509d3fb71f3fe23b6a3ac6c

                                  SHA1

                                  eca1ab8aeb3f3f116bd7cde997145cd56d8a041f

                                  SHA256

                                  76ab52c7ea13d17990f7798ed609ebd59f0096ad5f6b95949d4f60b1afdd796f

                                  SHA512

                                  23106b72b102df0f5eba073e89a6f7948a0739245cf52e4693571589d902c584725fa0c883a65276beee35fdc5556497002950978402c0fe22b86d6b1daa0f0d

                                • memory/1864-30-0x0000000000CA0000-0x0000000000CFE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/1864-34-0x0000000005620000-0x00000000056B2000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/1864-35-0x00000000056C0000-0x0000000005726000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/1864-36-0x00000000062D0000-0x00000000062E2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/1864-37-0x0000000006810000-0x000000000684C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/1864-33-0x0000000005AB0000-0x0000000006054000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/1864-29-0x000000007300E000-0x000000007300F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3168-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3168-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3272-45-0x00000000063E0000-0x00000000063EA000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4332-19-0x0000000004270000-0x0000000004271000-memory.dmp

                                  Filesize

                                  4KB