Analysis

  • max time kernel
    5s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 09:14

General

  • Target

    372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365N.exe

  • Size

    2.0MB

  • MD5

    662ac3a0c7bf45df37921fc4dfa98080

  • SHA1

    626c5f98e61344dff94204634216a0f20851db82

  • SHA256

    372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365

  • SHA512

    e85103dbe01691467bb72f201663c4e3bc0a26aa544141ad794107aae28541c5edc2d9311f7bd5b3793557120cd01bf1b3e2ebd1c6330553615a0ab5837e40f8

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY4:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y6

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 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\372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365N.exe
    "C:\Users\Admin\AppData\Local\Temp\372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365N.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:4000
    • 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:4700
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1312
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 552
          3⤵
          • Program crash
          PID:3048
      • 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:3488
        • 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:5056
        • 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:3236
          • 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:4620
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Or9Cmw4xn1j4.bat" "
            4⤵
              PID:5084
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1308
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4860
                • 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:4604
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 1984
                  4⤵
                  • Program crash
                  PID:4852
            • C:\Users\Admin\AppData\Local\Temp\372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365N.exe
              "C:\Users\Admin\AppData\Local\Temp\372a2f18992553af8f962d7e735c4f26ec0bd649cee2080f712dbcdd97295365N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:3680
            • 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:2084
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4700 -ip 4700
            1⤵
              PID:1448
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:2612
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:4384
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:4900
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 520
                        3⤵
                        • Program crash
                        PID:4588
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:4756
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        2⤵
                          PID:4284
                        • 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:1576
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4384 -ip 4384
                        1⤵
                          PID:4204
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3236 -ip 3236
                          1⤵
                            PID:4404
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:1384
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:3416
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:3992

                                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\Or9Cmw4xn1j4.bat

                                  Filesize

                                  208B

                                  MD5

                                  d68faefeb8da42882986bc3c7c6fa166

                                  SHA1

                                  2d5c87809a91202c9871a321d570c0487d5af57c

                                  SHA256

                                  400ed1bf9fac3ce33c6750841af654d3f68da09acf9dc6ef7b262d038111b2bc

                                  SHA512

                                  84c2f1333bff8514a1839ec84c2d19f05793fcee4a351789f81d1aa5a632d33fe0246dedbe187b410ba3e75e210252391249358ea2043aee9a63be106e9fc114

                                • 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\09-28-2024

                                  Filesize

                                  224B

                                  MD5

                                  ec943f356f9a1ed338de88abb62ae718

                                  SHA1

                                  343704f1089328f4eee05a8a8c940d52bb3caf69

                                  SHA256

                                  a4ff8229bea8a683c73377d62328a60cf3ac799fb6fe8112fc46acb92cb97df5

                                  SHA512

                                  85c0c846c93380533b5f953d5fc3b196f708995950ceecdaad19c5c006b1973fc11aca2db7ac1ae55b135115615f1153b0183d57556aa86a9fba8900c21bfb61

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  01afb04c2eaaca1254ef2b337f0e77cf

                                  SHA1

                                  e444353564ac601326f596ad3ae06efaf3b798c3

                                  SHA256

                                  018a58b963504edbce27546b760b71d39f070efc3b525267522f6e5a589de7fa

                                  SHA512

                                  6473ba686227c8e9378a530226196f2dee6212270fe81339af9ca9fd01a7cd5922226def6c4616511be41487a186fdc00caddb8044736e0fec9938a3bdb753c2

                                • memory/3236-45-0x0000000006330000-0x000000000633A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/3488-34-0x0000000005770000-0x0000000005802000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/3488-33-0x0000000005D20000-0x00000000062C4000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/3488-35-0x0000000005630000-0x0000000005696000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/3488-36-0x0000000005CB0000-0x0000000005CC2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/3488-37-0x00000000068B0000-0x00000000068EC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/3488-30-0x0000000000D30000-0x0000000000D8E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/3488-29-0x000000007348E000-0x000000007348F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3680-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3680-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4000-19-0x0000000003520000-0x0000000003521000-memory.dmp

                                  Filesize

                                  4KB