Analysis

  • max time kernel
    4s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 03:31

General

  • Target

    a56606365d303a4336b6311b99b02bc0N.exe

  • Size

    2.0MB

  • MD5

    a56606365d303a4336b6311b99b02bc0

  • SHA1

    d089b087c9b3f76c97c063dfe2ba8254de1ab182

  • SHA256

    ecb461309cbbaa643f4c19ebea02effb5c99600c10862cf8695063133f98091b

  • SHA512

    c1fcb50a9856b20cdebf1c96b5539a6bfaeb6d7ad02dfd4c5ee039b3e6fde947203727b996569d8edee7bb3bcd9971d3f4d2f56b432bf2b4cc0953b566901e95

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYi:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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\a56606365d303a4336b6311b99b02bc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\a56606365d303a4336b6311b99b02bc0N.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:4832
    • 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:2964
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1260
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 548
          3⤵
          • Program crash
          PID:696
      • 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:5048
        • 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:1616
        • 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:4496
          • 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:1100
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HpXjDSkKmPKG.bat" "
            4⤵
              PID:4384
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:448
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3880
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:5060
                    • 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:1384
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JITV8j80XFCy.bat" "
                      6⤵
                        PID:4340
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4480
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1900
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3124
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 2220
                            6⤵
                            • Program crash
                            PID:4064
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 2244
                        4⤵
                        • Program crash
                        PID:4592
                  • C:\Users\Admin\AppData\Local\Temp\a56606365d303a4336b6311b99b02bc0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\a56606365d303a4336b6311b99b02bc0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1556
                  • 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:3232
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2964 -ip 2964
                  1⤵
                    PID:4844
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4496 -ip 4496
                    1⤵
                      PID:3436
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3028
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3504
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2956
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 520
                                3⤵
                                • Program crash
                                PID:4532
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4088
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:992
                                • 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:3988
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3504 -ip 3504
                                1⤵
                                  PID:4896
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 5060 -ip 5060
                                  1⤵
                                    PID:232
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:1344
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2804
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:4888

                                        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\HpXjDSkKmPKG.bat

                                          Filesize

                                          208B

                                          MD5

                                          9a28dda946d7a2ba9cb2437d107e49ca

                                          SHA1

                                          03926d3d534791570e5f920feaa622d6dff570b8

                                          SHA256

                                          0d39d2d319e4f7392121ec4f15f7304fbe1b0d00f5769f5e2b8f9d595b6fdf97

                                          SHA512

                                          768191783c54960c32beb1394cb64285fbb55b51576bcb2e79ce0e6a1f00076f1d26181386f7ff8ea088aac7f10e843000e08a3088a22edeb5902dca93b1f667

                                        • C:\Users\Admin\AppData\Local\Temp\JITV8j80XFCy.bat

                                          Filesize

                                          208B

                                          MD5

                                          2d76ea73ec14accf7d2f7cfad5d41b6a

                                          SHA1

                                          27e2f80ccdab3ed73d1c2575372bb70418baee85

                                          SHA256

                                          0e71edb9c54385495cdffe33102a0e23694c459928db989e58ec3e70288306f8

                                          SHA512

                                          5d813aa33559ad0cd9be17eeeeeb22326a4786d8d1c0b3c19551f444a4faca0c9ffccdbe4f09da705250436df618c7e722f3fe7ab7ee800e35afa3326769460c

                                        • 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\08-29-2024

                                          Filesize

                                          224B

                                          MD5

                                          7d7320cc41495609f6a970fa75ab2015

                                          SHA1

                                          06b6e79560eac1e614b5ff980989d971b743c07d

                                          SHA256

                                          e0a9b01440849f63e55277b7033c303ac617815b33fe0e972d671b7bc4ace0ed

                                          SHA512

                                          3284c8640f00e889e8f0459b8d46a8997d85b30e6e8925e9d4c6afd398a87b915afeddf5d39cda4acaf2562e6789def2562c09a1e0788f9826cb941e27cf4fb4

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          ed7dffa8f661c48df98cac8e6687760e

                                          SHA1

                                          e7454fbed9af52d9fa161228b277e565288a8c6d

                                          SHA256

                                          a77a8792754120a7a542c0a3287666d841943af81cc7b1deaeb3915497e29856

                                          SHA512

                                          deb053e07a5a9afa9f1c67fb00368cea98c55a7e58706cbc76538c1b251777d5e1e836bf32ae86df315bc843cab94bb975e00ad7e1812ea28319e428f2e1fc9d

                                        • memory/992-80-0x00000000006B0000-0x00000000006D0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/992-74-0x00000000006B0000-0x00000000006D0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1556-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1556-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4496-45-0x00000000060A0000-0x00000000060AA000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/4832-19-0x00000000040A0000-0x00000000040A1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/5048-36-0x00000000051A0000-0x00000000051B2000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/5048-37-0x0000000005E90000-0x0000000005ECC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/5048-35-0x0000000004D30000-0x0000000004D96000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/5048-34-0x0000000004C90000-0x0000000004D22000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/5048-33-0x0000000005240000-0x00000000057E4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/5048-30-0x00000000001E0000-0x000000000023E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/5048-28-0x000000007371E000-0x000000007371F000-memory.dmp

                                          Filesize

                                          4KB