Analysis

  • max time kernel
    5s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 02:38

General

  • Target

    dttcodexgigas.exe

  • Size

    2.0MB

  • MD5

    8b26d506e02b7768a171e056c3c05af6

  • SHA1

    9ffe0c4f735ce8afb51c5bf282462fa66694a90c

  • SHA256

    65b9716f9d9c870dcf190857cb3d32357f701ffb491f325287cb345a2f22a319

  • SHA512

    8f76aec158b62dd2a2c9b961ce32a29ed4bb3c662442dc2fd9c922cc1922d14c2c04d4a593e6f13a8a9d98a906df1cbc4b366f03196112ee5a982b598231839a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYu:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yo

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 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe
    "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.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:3024
    • 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:2648
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 560
          3⤵
          • Program crash
          PID:4088
      • 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:1688
        • 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:600
        • 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:3692
          • 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:216
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2PFL0X02X4ly.bat" "
            4⤵
              PID:4220
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4892
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1124
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2648
                    • 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:4836
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yAomW0kMLHk3.bat" "
                      6⤵
                        PID:1424
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2596
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4652
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 2004
                          6⤵
                          • Program crash
                          PID:2884
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3692 -s 2264
                      4⤵
                      • Program crash
                      PID:3952
                • C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe
                  "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3556
                • 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:2136
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2648 -ip 2648
                1⤵
                  PID:3300
                • 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=4396,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
                  1⤵
                    PID:2824
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3692 -ip 3692
                    1⤵
                      PID:4116
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2368
                        • 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:4656
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 520
                                3⤵
                                • Program crash
                                PID:888
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:508
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4064
                                • 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:4468
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4936 -ip 4936
                                1⤵
                                  PID:4004
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2648 -ip 2648
                                  1⤵
                                    PID:4876

                                  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\2PFL0X02X4ly.bat

                                    Filesize

                                    208B

                                    MD5

                                    87b89b39744ba105f49a23eea13447e7

                                    SHA1

                                    5a8ac771d18c61905f92257904e4753ea4cb55e0

                                    SHA256

                                    976ca1459b4be9badccafdb0e9aa0be432b5648fe5369fbad3cfeaacedf7967d

                                    SHA512

                                    19c3aba51db22a1ad5a9b06e3f3704899ee0153234dd610f89746a07b54ff2b140edf94732b774a72c6f6d7c13be52b2ae2ec1434de900c82432ca1dbd3ca072

                                  • 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\Local\Temp\yAomW0kMLHk3.bat

                                    Filesize

                                    208B

                                    MD5

                                    16c78392eb78c0be8f3405c8e02e820b

                                    SHA1

                                    2f75d75ed6beb632b8fc95952e4981217cb62c42

                                    SHA256

                                    399718e8e476b1c7443680b5d8f31c7ed83f1bf6c2fbf7b9f8bac57bf3f3040b

                                    SHA512

                                    59b743bab9430ea82cc072a0537d0e578b56cbec83923d73605f2c8a998fb5ecaa11c962361bb2dffeea4d75deffcbeede6797c27a8a6ed80a9da012382d754f

                                  • C:\Users\Admin\AppData\Roaming\Logs\09-17-2024

                                    Filesize

                                    224B

                                    MD5

                                    82ed7d93c8d245b4c133d6f1e7497b96

                                    SHA1

                                    6f43d3cb8f03dc85fd80807809911443a93d8f34

                                    SHA256

                                    84ba5502c5951c03845855a8e117b2cd47a5cc60ee850810feb319b750862957

                                    SHA512

                                    41498f5f4854bb9f7c8ee08ca4d2368aa3b575c0607bc76a7d62f11045db05898e334c3ad20991e4792ae3e5b4b16aafd898b23a4bf46d32c241951ab7e7f5cd

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    90509e5491eb6487a49f17dabb1d131e

                                    SHA1

                                    c78361e9153a80200e73f21f4471a4cadd72f9b5

                                    SHA256

                                    30dddb48cfb2d17c97447bdc7779a83491e37bcc822a6d65ca538a9ed2f0173a

                                    SHA512

                                    13f74765542c0c00d25a3f15d6582bd4bd213caae6454c7c996e6911eacc554984d38cd532e436cbee7a93c226dd62bf99d04019c02b7b1b6d80867d1eb1619c

                                  • memory/1688-34-0x00000000051C0000-0x0000000005226000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/1688-33-0x0000000005110000-0x00000000051A2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/1688-35-0x0000000005750000-0x0000000005762000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/1688-36-0x0000000006340000-0x000000000637C000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/1688-32-0x0000000005770000-0x0000000005D14000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/1688-31-0x00000000007D0000-0x000000000082E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/3024-18-0x0000000001640000-0x0000000001641000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/3556-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3556-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3692-44-0x0000000006610000-0x000000000661A000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/4064-73-0x00000000004A0000-0x00000000004C0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4064-79-0x00000000004A0000-0x00000000004C0000-memory.dmp

                                    Filesize

                                    128KB