Analysis

  • max time kernel
    5s
  • max time network
    73s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 13:57

General

  • Target

    d2177efd1d7368e486ae807ca92b1630N.exe

  • Size

    2.0MB

  • MD5

    d2177efd1d7368e486ae807ca92b1630

  • SHA1

    6b1d87d7a89e9d68b0b353c3d70fca178a6604e3

  • SHA256

    8b270fa6249500fa2ef164951e40a87999a94fb08b57b514f09337e3c368b60f

  • SHA512

    35c38c55b360c59ede5e7149eaf13a238bbf3fa6445854ad2a1cd588369204a19267880ac40e63d6b33da080349563c5d3e48ad59f7c892403638b3db8799df6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYx:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

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\d2177efd1d7368e486ae807ca92b1630N.exe
    "C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.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:5080
    • 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:3652
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 548
          3⤵
          • Program crash
          PID:3004
      • 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:5108
        • 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:4428
        • 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:4316
          • 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:4888
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GghMo5NhPYSo.bat" "
            4⤵
              PID:4344
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4972
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1088
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3552
                    • 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:3272
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sxIrfdPwSky0.bat" "
                      6⤵
                        PID:4444
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3172
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4396
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1944
                          6⤵
                          • Program crash
                          PID:3036
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 2256
                      4⤵
                      • Program crash
                      PID:4436
                • C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.exe
                  "C:\Users\Admin\AppData\Local\Temp\d2177efd1d7368e486ae807ca92b1630N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4824
                • 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:3396
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3652 -ip 3652
                1⤵
                  PID:2928
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:3260
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1736
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4920
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 520
                            3⤵
                            • Program crash
                            PID:984
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4504
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.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:3136
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1736 -ip 1736
                            1⤵
                              PID:4576
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4316 -ip 4316
                              1⤵
                                PID:1680
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3552 -ip 3552
                                1⤵
                                  PID:1040

                                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\GghMo5NhPYSo.bat

                                  Filesize

                                  208B

                                  MD5

                                  2e6a078ced33ee1b3221cb6d89921317

                                  SHA1

                                  23c269cf648239e435ed9eacdee5fa1fb11ed877

                                  SHA256

                                  1ff90d3fee6fe35bf1d44652e40a55d7248207a01e3656234153600e3f75a822

                                  SHA512

                                  d4166020665d51359e8d7c6a0835c18c83ebde1f6b0ffe5e7fe8bb3d8290c26696013d5dc874f563e9d4c9416a0cdad00cf4e733df01db4440459079f1aa1534

                                • C:\Users\Admin\AppData\Local\Temp\sxIrfdPwSky0.bat

                                  Filesize

                                  208B

                                  MD5

                                  0fe272c75806c3e89edf852b77060bd8

                                  SHA1

                                  ca22a90b7e327592b718db406798e056adc66d32

                                  SHA256

                                  eb85ec34788b2efa034a955b192478b157533289fe9f51f230d914396b068ef3

                                  SHA512

                                  c4be0c0faffb462c170ff790f11842008dc3dc48167dab2f942348aca4dd53569d1cf6d8ac4f747c040335f317e2e52b1c84db77a62a3baab2096aef169f9c90

                                • 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\08-24-2024

                                  Filesize

                                  224B

                                  MD5

                                  4dde66576f3981413d8ee5897c3f4142

                                  SHA1

                                  49da259d11690dec38d118dbd0f8c291fe131ee5

                                  SHA256

                                  cf949ca333be05754cb3f3f31ac7645af36c53249ecbcc85093b821af8f479b2

                                  SHA512

                                  cd1a63e9ff3d8d91b4b5ceab95c4062c7d31207ce1df373f0916e217459076cdfcf7753daf4b57c65d4c23b0c3ceaf82f5097aaf7df4dbd0a6eca8e07f503fbf

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  fe4f61e69b6421784368bfebc52f44fd

                                  SHA1

                                  4bb4ae8011184181d023640b8a6fb65b9e55a79d

                                  SHA256

                                  a67d685f5cd3c1628ee46b550c39bd3ca918caa5b1d339d3d956bbf50da8b8e9

                                  SHA512

                                  2c2e2c753cc80b00548fb2b3bfc87a16fcb464452184f59a6c950fdd0e32a14ac0bd6a98527c06f890fcc4bd3dcbe6f7b42c599ff8fb5bf5c92d29cd7369d7b0

                                • memory/2140-72-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2140-66-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4316-44-0x0000000006150000-0x000000000615A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4824-19-0x0000000000450000-0x0000000000470000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4824-28-0x0000000000450000-0x0000000000470000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/5080-18-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/5108-36-0x00000000065C0000-0x00000000065FC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/5108-35-0x00000000058D0000-0x00000000058E2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/5108-34-0x0000000005480000-0x00000000054E6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/5108-33-0x00000000053E0000-0x0000000005472000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/5108-32-0x00000000058F0000-0x0000000005E94000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/5108-31-0x0000000000910000-0x000000000096E000-memory.dmp

                                  Filesize

                                  376KB