Analysis

  • max time kernel
    35s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2024, 22:25

General

  • Target
    588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a.exe
  • Size 2.0MB
  • Sample240309-2b6tesce87
  • SHA256 588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a
  • MD5 SHA1 SHA512 SSDEEP

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 3 IoCs

    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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 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 7 IoCs

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

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a.exe
    "C:\Users\Admin\AppData\Local\Temp\588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:3524
    • 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:5012
      • 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:724
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:4356
          • 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:4600
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Ybh0PPkx9RaD.bat" "
            4⤵
              PID:3388
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3092
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1468
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4444
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:748
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SbbxnexMZpAf.bat" "
                      6⤵
                        PID:1496
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4940
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:1464
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:5028
                              • 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
                                8⤵
                                • Creates scheduled task(s)
                                PID:1936
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\i5rqgvEWQ2BC.bat" "
                                8⤵
                                  PID:968
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    9⤵
                                      PID:756
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      9⤵
                                      • Runs ping.exe
                                      PID:4640
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      9⤵
                                        PID:4020
                                        • 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
                                          10⤵
                                          • Creates scheduled task(s)
                                          PID:4772
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 2284
                                      8⤵
                                      • Program crash
                                      PID:4124
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 2104
                                  6⤵
                                  • Program crash
                                  PID:5024
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 2292
                              4⤵
                              • Program crash
                              PID:2444
                        • C:\Users\Admin\AppData\Local\Temp\588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a.exe
                          "C:\Users\Admin\AppData\Local\Temp\588f9007ae911707680183295f265abfa4ec13e8ffe523b05fd19008b63a6c6a.exe"
                          2⤵
                            PID:1484
                          • 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⤵
                            • Quasar RAT
                            • Creates scheduled task(s)
                            PID:2096
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          1⤵
                            PID:2600
                            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                              2⤵
                                PID:4228
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k
                                  3⤵
                                    PID:4540
                                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                                  2⤵
                                    PID:2892
                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                    2⤵
                                      PID:4528
                                    • 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:2064
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4356 -ip 4356
                                    1⤵
                                      PID:3056
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 4444 -ip 4444
                                      1⤵
                                        PID:2264
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5028 -ip 5028
                                        1⤵
                                          PID:400

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              windef.exe.log

                                              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log
                                              • Size 1KB
                                              • SHA256 f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928
                                              • MD5 SHA1 SHA512

                                              SbbxnexMZpAf.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\SbbxnexMZpAf.bat
                                              • Size 208B
                                              • SHA256 3d34b9de0793b02353546c8cbca7c4dd211e12a9bfc5549cfd93c3d6af2d9d8a
                                              • MD5 SHA1 SHA512

                                              Ybh0PPkx9RaD.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\Ybh0PPkx9RaD.bat
                                              • Size 208B
                                              • SHA256 4d79c670b12c450949ef85f11cafb16c0a541b177351cdf21010d31d9c3802e9
                                              • MD5 SHA1 SHA512

                                              i5rqgvEWQ2BC.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\i5rqgvEWQ2BC.bat
                                              • Size 208B
                                              • SHA256 d293bc8dc7557f1f0091672c4f91a5eede26bcc04efa2f973ed82226610bacd5
                                              • MD5 SHA1 SHA512

                                              vnc.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\vnc.exe
                                              • Size 405KB
                                              • SHA256 4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
                                              • MD5 SHA1 SHA512 SSDEEP

                                              windef.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\windef.exe
                                              • Size 349KB
                                              • SHA256 7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
                                              • MD5 SHA1 SHA512 SSDEEP

                                              03-09-2024

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\03-09-2024
                                              • Size 224B
                                              • SHA256 1910864520a6e999bfcc257f6f867300fc1d2a803efef8b57eb244efb3ff8b30
                                              • MD5 SHA1 SHA512

                                              03-09-2024

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\03-09-2024
                                              • Size 224B
                                              • SHA256 801cc5e4ce4666deb0a67c9a5a9123be4a7746770a98e41e3a7b116080c246af
                                              • MD5 SHA1 SHA512

                                              03-09-2024

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\03-09-2024
                                              • Size 224B
                                              • SHA256 3b726440843ca4d860ca1ea185accc3cdd9c11180fce38d3c4c25a293044b303
                                              • MD5 SHA1 SHA512

                                              SystemPropertiesPerformance.exe

                                              • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                              • Size 2.0MB
                                              • SHA256 7e20c7c651ee3174358c1675891238feae4cdfd924c0e6b56279a27c7de94a19
                                              • MD5 SHA1 SHA512 SSDEEP

                                              memory/1484-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                              memory/1484-39-0x0000000000400000-0x0000000000420000-memory.dmp

                                              memory/2892-87-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/2892-100-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/2892-88-0x0000000005580000-0x0000000005590000-memory.dmp

                                              memory/3524-27-0x0000000000BD0000-0x0000000000C6C000-memory.dmp

                                              memory/3524-38-0x0000000000BD0000-0x0000000000C6C000-memory.dmp

                                              memory/3524-86-0x0000000000BD0000-0x0000000000C6C000-memory.dmp

                                              memory/3524-28-0x0000000000C70000-0x0000000000C71000-memory.dmp

                                              memory/4020-133-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4248-19-0x0000000003EB0000-0x0000000003EB1000-memory.dmp

                                              memory/4356-51-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4356-107-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4356-56-0x0000000006D70000-0x0000000006D7A000-memory.dmp

                                              memory/4356-54-0x00000000055E0000-0x00000000055F0000-memory.dmp

                                              memory/4356-99-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4356-101-0x00000000055E0000-0x00000000055F0000-memory.dmp

                                              memory/4444-109-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4444-110-0x0000000004E70000-0x0000000004E80000-memory.dmp

                                              memory/4444-113-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4444-114-0x0000000004E70000-0x0000000004E80000-memory.dmp

                                              memory/4444-119-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/4540-72-0x0000000000860000-0x00000000008FC000-memory.dmp

                                              memory/4540-106-0x0000000000860000-0x00000000008FC000-memory.dmp

                                              memory/4540-76-0x0000000000860000-0x00000000008FC000-memory.dmp

                                              memory/4540-71-0x0000000000860000-0x00000000008FC000-memory.dmp

                                              memory/4540-70-0x0000000000900000-0x0000000000901000-memory.dmp

                                              memory/5012-40-0x0000000005390000-0x00000000053A0000-memory.dmp

                                              memory/5012-35-0x00000000052A0000-0x0000000005332000-memory.dmp

                                              memory/5012-44-0x00000000062A0000-0x00000000062B2000-memory.dmp

                                              memory/5012-43-0x00000000056A0000-0x0000000005706000-memory.dmp

                                              memory/5012-53-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/5012-22-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/5012-29-0x0000000005770000-0x0000000005D14000-memory.dmp

                                              memory/5012-45-0x00000000066E0000-0x000000000671C000-memory.dmp

                                              memory/5012-24-0x0000000000830000-0x000000000088E000-memory.dmp

                                              memory/5028-126-0x0000000005570000-0x0000000005580000-memory.dmp

                                              memory/5028-125-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/5028-131-0x0000000072B60000-0x0000000073310000-memory.dmp

                                              memory/5028-122-0x0000000005570000-0x0000000005580000-memory.dmp

                                              memory/5028-121-0x0000000072B60000-0x0000000073310000-memory.dmp