Analysis

  • max time kernel
    5s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 18:32

General

  • Target

    0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4.exe

  • Size

    2.0MB

  • MD5

    b3f33da9275e6b105b6d984cda7357c2

  • SHA1

    54689d296eaa75012adb39fc6d6da3813bfb5022

  • SHA256

    0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4

  • SHA512

    45347d0d765ec7b84da224d249c455a1ce14414c09f6e857beebed4b29f6a2c8dc34c18fdf116df4704e93080ec0c17467ff360c93b56c8c1a843903a221940a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yb

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
  • 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 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 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
  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4.exe
    "C:\Users\Admin\AppData\Local\Temp\0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:528
    • 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:1800
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 548
          3⤵
          • Program crash
          PID:4212
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4164
        • 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:2400
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:3484
            • 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:444
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\wIZEAx0DIoUf.bat" "
              4⤵
                PID:4924
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:2168
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • Runs ping.exe
                    PID:1556
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 2172
                  4⤵
                  • Program crash
                  PID:4864
            • C:\Users\Admin\AppData\Local\Temp\0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4.exe
              "C:\Users\Admin\AppData\Local\Temp\0ce8e00fefb111e625fa5da3aef03f90f812e19d97c183ff4ef97225a955b3b4.exe"
              2⤵
                PID:1180
              • 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:4988
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1800 -ip 1800
              1⤵
                PID:5092
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:936
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4852
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3748
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4852 -s 520
                          3⤵
                          • Program crash
                          PID:1172
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:404
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            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⤵
                            • Creates scheduled task(s)
                            PID:5096
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4852 -ip 4852
                          1⤵
                            PID:1528
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3484 -ip 3484
                            1⤵
                              PID:1952
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:5096
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:3492

                                Network

                                MITRE ATT&CK Matrix ATT&CK v13

                                Execution

                                Scheduled Task/Job

                                1
                                T1053

                                Persistence

                                Scheduled Task/Job

                                1
                                T1053

                                Privilege Escalation

                                Scheduled Task/Job

                                1
                                T1053

                                Discovery

                                Query Registry

                                2
                                T1012

                                System Information Discovery

                                3
                                T1082

                                Peripheral Device Discovery

                                1
                                T1120

                                Remote System Discovery

                                1
                                T1018

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log
                                  Filesize

                                  701B

                                  MD5

                                  5de8527438c860bfa3140dc420a03e52

                                  SHA1

                                  235af682986b3292f20d8d71a8671353f5d6e16d

                                  SHA256

                                  d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                  SHA512

                                  77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                                  Filesize

                                  405KB

                                  MD5

                                  b8ba87ee4c3fc085a2fed0d839aadce1

                                  SHA1

                                  b3a2e3256406330e8b1779199bb2b9865122d766

                                  SHA256

                                  4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                  SHA512

                                  7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                • C:\Users\Admin\AppData\Local\Temp\wIZEAx0DIoUf.bat
                                  Filesize

                                  208B

                                  MD5

                                  71ba565a5188909e94cbc05964cbe9f3

                                  SHA1

                                  cd5f188b2837b8ed23fbd9ab9821f5aa939b1b10

                                  SHA256

                                  891d6c7a7021cc4b6acd7f501c841e900e061c950a24d8e15b2e0334aae13dfe

                                  SHA512

                                  e57c7f88bfe368e09d45fc4e94522da1d83055f098a5d9b4e3bde1e86db1f3629fa96a835958a53959b22195a8056924dab7adbc4a1fa4a2cc7f957b2b39d103

                                • 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

                                  2f9634134bb35672b1dde8dbb4338eaf

                                  SHA1

                                  bd970b1eb416efe345fd5a1b604a010fbcf21521

                                  SHA256

                                  80d3485a1efc2e2246ca87fa382a9b69e8ecbae97f7343c3cd2f973b99848f75

                                  SHA512

                                  d604035e88ca1cde8ebf1b83a377798a6604a41ca21c01a532ec2e3210cc49e7d64084b9c282421e34fc2f8c3be57df11ffeba77e5f80b74b1f7a07351e3f8fe

                                • memory/1180-19-0x0000000000400000-0x0000000000420000-memory.dmp
                                  Filesize

                                  128KB

                                • memory/1180-27-0x0000000000400000-0x0000000000420000-memory.dmp
                                  Filesize

                                  128KB

                                • memory/3484-63-0x0000000006930000-0x000000000693A000-memory.dmp
                                  Filesize

                                  40KB

                                • memory/4164-28-0x0000000000E50000-0x0000000000EAE000-memory.dmp
                                  Filesize

                                  376KB

                                • memory/4164-35-0x0000000006480000-0x0000000006492000-memory.dmp
                                  Filesize

                                  72KB

                                • memory/4164-34-0x0000000005860000-0x00000000058C6000-memory.dmp
                                  Filesize

                                  408KB

                                • memory/4164-54-0x0000000072FC0000-0x0000000073770000-memory.dmp
                                  Filesize

                                  7.7MB

                                • memory/4164-33-0x00000000057C0000-0x0000000005852000-memory.dmp
                                  Filesize

                                  584KB

                                • memory/4164-61-0x0000000072FC0000-0x0000000073770000-memory.dmp
                                  Filesize

                                  7.7MB

                                • memory/4164-32-0x0000000005CD0000-0x0000000006274000-memory.dmp
                                  Filesize

                                  5.6MB

                                • memory/4164-29-0x0000000072FC0000-0x0000000073770000-memory.dmp
                                  Filesize

                                  7.7MB