Analysis

  • max time kernel
    5s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-05-2024 03:03

General

  • Target

    c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c.exe

  • Size

    2.0MB

  • MD5

    da833e33a67c144eae7850b898192f1e

  • SHA1

    c8e713b603d22abd2de7842cb155104cddd50bbf

  • SHA256

    c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c

  • SHA512

    d0c9e6f7e991acac5f66636fd4c47687da0de398b64d4b20e000ad22fb07c5c3b4e97ec5a6940f7c3f60f7219084e0b7f0934ebe753bbc5bf80b6a80021995aa

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y7

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
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 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
  • Creates scheduled task(s) 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 2 IoCs
  • 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\c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c.exe
    "C:\Users\Admin\AppData\Local\Temp\c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 548
          3⤵
          • Program crash
          PID:3780
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3568
        • 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⤵
          • Creates scheduled task(s)
          PID:1080
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:652
          • 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⤵
            • Creates scheduled task(s)
            PID:4880
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BNbUDC4ESBZm.bat" "
            4⤵
              PID:3084
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4524
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1084
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1080
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:2096
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1AHx2Ooheepc.bat" "
                      6⤵
                        PID:1440
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:916
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:3808
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:1336
                              • 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
                                8⤵
                                • Creates scheduled task(s)
                                PID:336
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 2236
                            6⤵
                            • Program crash
                            PID:2848
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 652 -s 2244
                        4⤵
                        • Program crash
                        PID:3128
                  • C:\Users\Admin\AppData\Local\Temp\c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c.exe
                    "C:\Users\Admin\AppData\Local\Temp\c99601e44aee3254aa24da8df64c42d6c36462992e0a936e494188f9adaba48c.exe"
                    2⤵
                      PID:2260
                    • 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⤵
                      • Quasar RAT
                      • Creates scheduled task(s)
                      PID:4368
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4932 -ip 4932
                    1⤵
                      PID:1000
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 652 -ip 652
                      1⤵
                        PID:3784
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        1⤵
                          PID:3752
                          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                            2⤵
                              PID:4528
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k
                                3⤵
                                  PID:5040
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 520
                                  3⤵
                                  • Program crash
                                  PID:2492
                              • C:\Users\Admin\AppData\Local\Temp\windef.exe
                                "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                                2⤵
                                  PID:1700
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:4628
                                  • 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⤵
                                    • Creates scheduled task(s)
                                    PID:3380
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4528 -ip 4528
                                  1⤵
                                    PID:544
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1080 -ip 1080
                                    1⤵
                                      PID:1564
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4436
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:3560

                                        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\1AHx2Ooheepc.bat

                                          Filesize

                                          208B

                                          MD5

                                          d022014be4cb8df9c08b124df9b09757

                                          SHA1

                                          a3dd5c5f16c9a642adde1a225e0a9f43575c9117

                                          SHA256

                                          5894e6232272c11e62c04280809c4ee9471a04f094889e8e9a9e1f861ed8eb51

                                          SHA512

                                          a25f18fe3b750696ff1c657c51ff1f0eb6a7af1d10f0e926b721df5912815915d259e43836835951c39218239795514052cdd1508e058e86009bf65a2c4718d4

                                        • C:\Users\Admin\AppData\Local\Temp\BNbUDC4ESBZm.bat

                                          Filesize

                                          208B

                                          MD5

                                          00583e3a0055352257e4c52dcee336df

                                          SHA1

                                          729c22b01b1b5a11746baa64175ecbe28a40a88a

                                          SHA256

                                          40bf5782e15e685cab5f7c816e76635253757f258acaff1b6c405392ba846353

                                          SHA512

                                          47ba148dfcd9002b6711f5cc76fcc76226221473160864f088ecf27c48b4f4f4c1f90c8a14d394cd1f8ca1c7068388c8dad1738e9040e8c91dd91ef855c4d1b6

                                        • 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\05-28-2024

                                          Filesize

                                          224B

                                          MD5

                                          9760e0f750c7c508225d86ab34b72495

                                          SHA1

                                          0ea43428a5f5e80d566b1e6ebae8b55b5e470504

                                          SHA256

                                          ba20f87a05b3dad0d70507a7efbe7753c95a6d237c824285f0635c8edd7b4153

                                          SHA512

                                          f8df4bae6605ed165b77929fb104879a81ccb32db7d045f0817cf2ac1ac40753f61b8b30d89363331df0b3e5c2f67243aa8094fbecbb7058f107ade5413a1e26

                                        • C:\Users\Admin\AppData\Roaming\Logs\05-28-2024

                                          Filesize

                                          224B

                                          MD5

                                          872c7be32e92d1a84e87c9a799cdd3d7

                                          SHA1

                                          867cdadf166227267141fb780860d10a4dd8dc17

                                          SHA256

                                          c8eeadaff612c8e8bff600c2f40eb530cf4eb7163fdbe920f1cdb70bc3987d9e

                                          SHA512

                                          9865331f76613c1bf058fd96a814d0ff97901d0e53407bb349ba8b2a6f417d5cd4014e9632ca5d55a951feeab711e2c0da02b56e0fee6ec465a8998ad95baf44

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          2b7550a0a24253b33ffd3d69c69eda6d

                                          SHA1

                                          498dc4a864cc7c920be897cbbbaba06a04029eb3

                                          SHA256

                                          a27da3029a47783106c215fbf71fba1318764e196201c30094713da70c485fbe

                                          SHA512

                                          96318d5886c23b38a196d986c175952a90cdded7cbf81b965735f980f8cf796980604b5b619011aa395cbbb98986be61075d94d4ec5798a20a9ccdb5a0c87f53

                                        • memory/652-45-0x0000000006D00000-0x0000000006D0A000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/2260-29-0x0000000000AB0000-0x0000000000AD0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2260-21-0x0000000000AB0000-0x0000000000AD0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3568-36-0x0000000005920000-0x0000000005932000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3568-37-0x0000000005E60000-0x0000000005E9C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/3568-35-0x0000000004C00000-0x0000000004C66000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/3568-34-0x0000000004C80000-0x0000000004D12000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/3568-33-0x0000000005230000-0x00000000057D4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/3568-30-0x00000000001B0000-0x000000000020E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/3568-27-0x00000000734BE000-0x00000000734BF000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/4628-74-0x0000000000770000-0x0000000000790000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4628-80-0x0000000000770000-0x0000000000790000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/5004-19-0x0000000001960000-0x0000000001961000-memory.dmp

                                          Filesize

                                          4KB