Analysis

  • max time kernel
    4s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2024 00:05

General

  • Target

    a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1.exe

  • Size

    2.0MB

  • MD5

    9eda91ef318131bd58b539cb7aaee6d2

  • SHA1

    73a89bba0ea8673187e08fa3622ecfa9f322db6e

  • SHA256

    a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1

  • SHA512

    04b05fad44adcad3840d30776fa5f2a1c3344c5a939fc660487cf6f81174ec1b73e1bf297ffe1649f31a3fc35e3c1833addd8b7ff7b257246bf4d8713ddad6d0

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y4

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 2 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 5 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 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1.exe
    "C:\Users\Admin\AppData\Local\Temp\a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1.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:4116
    • 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:3524
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3728
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 548
          3⤵
          • Program crash
          PID:1664
      • 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
        PID:3052
        • 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:4936
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:4460
            • 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:3632
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SCzynu7nPuEq.bat" "
              4⤵
                PID:552
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:2760
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:2952
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:704
                      • 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:3976
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GUWcruGBuQbl.bat" "
                        6⤵
                          PID:1052
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            7⤵
                              PID:4972
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              7⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:1436
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 704 -s 2252
                            6⤵
                            • Program crash
                            PID:3080
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 2016
                        4⤵
                        • Program crash
                        PID:1808
                  • C:\Users\Admin\AppData\Local\Temp\a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1.exe
                    "C:\Users\Admin\AppData\Local\Temp\a44f5d2479507bebab71fd90f16b08ee3875cf676c667ddf2e192af88ed486e1.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:968
                  • 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:1504
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3524 -ip 3524
                  1⤵
                    PID:1040
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1320,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4460 /prefetch:8
                    1⤵
                      PID:1516
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:740
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4936
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4880
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 520
                                3⤵
                                • Program crash
                                PID:400
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1940
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4924
                                • 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:4464
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4936 -ip 4936
                                1⤵
                                  PID:3500
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4460 -ip 4460
                                  1⤵
                                    PID:5028
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 704 -ip 704
                                    1⤵
                                      PID:3276
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4508
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:2784

                                        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\GUWcruGBuQbl.bat

                                          Filesize

                                          208B

                                          MD5

                                          9cbb308d87c84a6c378773346352870a

                                          SHA1

                                          77a48bcf4e66340eb8abd82189671624a3013d2d

                                          SHA256

                                          a6747d043f56ca901736a6e98042e0ab3abf5e715296fdaa0d55e7cfe00db5c9

                                          SHA512

                                          292f2acde1628acf543966afc45a68d3433b795ad5f972d6fcbeea2f16150dcc5b057f024c4e0287307182d5a21463ec0ab3a101cbca089113ca0d97263aad4c

                                        • C:\Users\Admin\AppData\Local\Temp\SCzynu7nPuEq.bat

                                          Filesize

                                          208B

                                          MD5

                                          078be1a2a8aaa82a71dea14ab2999b8a

                                          SHA1

                                          1858abb53084c06dafb4febb637e9f24175118e4

                                          SHA256

                                          fff8261e7b4b27f692d73fb1f42d0627166e1b57bd11bab79c3170327093f37e

                                          SHA512

                                          2457c74adf35c2f9c2a81d2512a03eb3b51450f95a8c37e3efa0050e1764c5ff29fa341f0790a543c7d968218e273738a87c9fc434844ebc284686fab3c20d7d

                                        • 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\08-19-2024

                                          Filesize

                                          224B

                                          MD5

                                          d09e27c5715d2b6d2a4a07d7b4e0ec99

                                          SHA1

                                          a00b7589efbc28e89c1b0e84cbbdffae62546895

                                          SHA256

                                          ff177d07e8356c78c0b7a3447072178e913909768b0cdb55acfaad9e95dd3b8f

                                          SHA512

                                          3f80fe57fb80e4aef1f43416d1a5a32591dbc19bf9f515c7db0ebe59788b78487741b313828db38556382500652bdd598cb25b0702d83033dfe72bbdcf594fa6

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          019d7db9e6bab92b101e32ee63290e6a

                                          SHA1

                                          2a2edf74d110b77aaab7c71ed4e6bef25efa9ed6

                                          SHA256

                                          d0bce355c5692f62975b4a081ee33a8b2073e8d7319ca910bbb1c603ccaabfd7

                                          SHA512

                                          b462de4bfd35caa7f3e464db89325f2480432c542f8fac3ab8f116a33fab5e67b02fc98f0bbd21e88143af76747d765bb04ff609e3df3d74e75997862f33952f

                                        • memory/968-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/968-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3052-34-0x00000000050B0000-0x0000000005116000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/3052-35-0x0000000005500000-0x0000000005512000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3052-36-0x00000000062F0000-0x000000000632C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/3052-33-0x0000000005010000-0x00000000050A2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/3052-32-0x0000000005520000-0x0000000005AC4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/3052-31-0x0000000000680000-0x00000000006DE000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/4116-19-0x0000000000FB0000-0x0000000000FB1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/4460-44-0x0000000006920000-0x000000000692A000-memory.dmp

                                          Filesize

                                          40KB