Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-07-2024 06:03

General

  • Target

    7cbf810172ea323ce4c360d9462e7c30N.exe

  • Size

    2.0MB

  • MD5

    7cbf810172ea323ce4c360d9462e7c30

  • SHA1

    5e410032cf820541a777f6c2116f0be5f2bf66d2

  • SHA256

    cb1be42c3a1392c738b07af65bda4b7a9417780a50b95a8f2ddf0cdabd536092

  • SHA512

    c3c75070dd5bdf57828abab0997fea4c6ee30bda6e99f63a382770f86539bd96b7683b4f08c583f4c0bc745fa714ec51b7965dd799f1fa8594121b2e5a41aecb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY5:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

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 3 IoCs
  • 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\7cbf810172ea323ce4c360d9462e7c30N.exe
    "C:\Users\Admin\AppData\Local\Temp\7cbf810172ea323ce4c360d9462e7c30N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3212
    • 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:3416
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3416 -s 548
          3⤵
          • Program crash
          PID:2148
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4608
        • 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:884
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:852
          • 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:2644
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CPOyfJJXDtFC.bat" "
            4⤵
              PID:2556
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2812
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:728
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1788
                    • 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:2292
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 2260
                  4⤵
                  • Program crash
                  PID:5072
            • C:\Users\Admin\AppData\Local\Temp\7cbf810172ea323ce4c360d9462e7c30N.exe
              "C:\Users\Admin\AppData\Local\Temp\7cbf810172ea323ce4c360d9462e7c30N.exe"
              2⤵
                PID:2140
              • 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:2280
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3416 -ip 3416
              1⤵
                PID:4236
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3556
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4872
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:1324
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 520
                          3⤵
                          • Program crash
                          PID:2248
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:2108
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            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⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:1724
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4872 -ip 4872
                          1⤵
                            PID:544
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 852 -ip 852
                            1⤵
                              PID:3356
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:4880

                              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\CPOyfJJXDtFC.bat

                                Filesize

                                208B

                                MD5

                                2d62652cd1b03160f747a00aa00e711b

                                SHA1

                                d5ae380c746c11841b0099007f51bb1e1ec24e40

                                SHA256

                                ee776443aac4115d1a53e9dbf350b215fd0f3892f72e30ebc12d3374947ece98

                                SHA512

                                1c5ee8e847aef1d919675b41d8bad41f3ab595f11b33c3777717d040dc477ba0c1bce3ba5e1529275379ba206234fe601edf67ffe76ebf78379c40022d5529ea

                              • 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\07-16-2024

                                Filesize

                                224B

                                MD5

                                ace0c7bc877e1940ade3845125f9b7e3

                                SHA1

                                44f0abc52bc3be16641da47d252da7186eb60181

                                SHA256

                                c4b727c3d82aa0592ebbbbffd08cdc1db075b59caeda2e982102434887ccb58d

                                SHA512

                                c13214bfeee5fa680c1b4b0054633fc62903f3093433cd8caddef8dd7d6ed4ec433057458a18d022ee21dfc9c93e3e20f685c68e6f50aac82e8f9069f2cbd71d

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

                                Filesize

                                2.0MB

                                MD5

                                ab2989906719ff106fda619fd2bda7f6

                                SHA1

                                658ad7eb353e3195de1bf1cb4492e4f33e8a4b8a

                                SHA256

                                fd468bd0193aeb0860c313cbbd65c1051e954fc2726bc98cd025d011c5aa3c58

                                SHA512

                                9d94697c32d76f712400e39d7601cebbd0a6b106d7ba68072132e2f5195c509f9ce63c0690029b76ec651c6a139ce19b029666ab308952882ee0ee5a98319123

                              • memory/852-44-0x0000000006510000-0x000000000651A000-memory.dmp

                                Filesize

                                40KB

                              • memory/1556-73-0x00000000003E0000-0x0000000000400000-memory.dmp

                                Filesize

                                128KB

                              • memory/1556-67-0x00000000003E0000-0x0000000000400000-memory.dmp

                                Filesize

                                128KB

                              • memory/2140-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/2140-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/3212-45-0x0000000004060000-0x0000000004061000-memory.dmp

                                Filesize

                                4KB

                              • memory/3212-28-0x0000000004060000-0x0000000004061000-memory.dmp

                                Filesize

                                4KB

                              • memory/4608-36-0x00000000062C0000-0x00000000062FC000-memory.dmp

                                Filesize

                                240KB

                              • memory/4608-35-0x0000000005D80000-0x0000000005D92000-memory.dmp

                                Filesize

                                72KB

                              • memory/4608-34-0x0000000004F30000-0x0000000004F96000-memory.dmp

                                Filesize

                                408KB

                              • memory/4608-33-0x0000000004FE0000-0x0000000005072000-memory.dmp

                                Filesize

                                584KB

                              • memory/4608-32-0x0000000005590000-0x0000000005B34000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/4608-29-0x0000000000620000-0x000000000067E000-memory.dmp

                                Filesize

                                376KB