Analysis

  • max time kernel
    5s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 22:04

General

  • Target

    59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe

  • Size

    2.0MB

  • MD5

    83e32263d325642ba70bb6d7ecf9bed4

  • SHA1

    66fd8758eae62532be0ef48c25512216156d7f61

  • SHA256

    59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b

  • SHA512

    2039a75aadad530a8cb4440516d22e561cc29bd236191fcd88e3e9cb631f6722880799522fabac76d526154391b92755605794128482dcd684a03015b90d3371

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYG:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YI

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\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
    "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.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:3992
    • 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:3964
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 556
          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:224
        • 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:5044
        • 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:4244
          • 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:2004
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1SDLL4XAAU42.bat" "
            4⤵
              PID:3856
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3960
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3000
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3272
                    • 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:2692
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KWmHpOanyWMk.bat" "
                      6⤵
                        PID:2604
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3936
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4332
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 2240
                          6⤵
                          • Program crash
                          PID:844
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 2248
                      4⤵
                      • Program crash
                      PID:5032
                • C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
                  "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4168
                • 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:1584
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3964 -ip 3964
                1⤵
                  PID:3660
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4244 -ip 4244
                  1⤵
                    PID:5036
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:1724
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:5048
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:1552
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 520
                              3⤵
                              • Program crash
                              PID:4456
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2732
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3204
                              • 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:2424
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5048 -ip 5048
                              1⤵
                                PID:1088
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3272 -ip 3272
                                1⤵
                                  PID:3152
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:1028
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1236

                                    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\1SDLL4XAAU42.bat

                                      Filesize

                                      208B

                                      MD5

                                      3d7b401f83bb11acd4dc219f5b41963c

                                      SHA1

                                      279b9c858fe9066ed9a0e4cdb71257edc6d8e452

                                      SHA256

                                      472ae64fc6a3aab8fb7441331d1dd9d20180b4ba9762ab03ccaad470d164a2f1

                                      SHA512

                                      d890ab4064083f1b7f44c239bdfbfb76dd1a98ca801f1344f546f30c2ff6ae6ee9c92c57520a47d7948f5ea34b67214035a271c231aed3a2e6dd91633f4b419f

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

                                      Filesize

                                      208B

                                      MD5

                                      cb61be48caa91e5fdaa8084c872ae0fa

                                      SHA1

                                      c66274d3e5fc7f0073a447edd6e26910ff474907

                                      SHA256

                                      220f2e1a27912f91e7959d9b35ff1d8a5ec9a3c923ee9072e242130645c01a69

                                      SHA512

                                      328f817548970b1aa6212be802f2102d0a16b025f92e830f5050b30fbc71c661efae9cc9736259cbc8c0615ed12af3c579c99572b901f5ac45d85077e1e5a1de

                                    • 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\08-15-2024

                                      Filesize

                                      224B

                                      MD5

                                      f560b5a619975b8e76fe5197cf53126c

                                      SHA1

                                      82d0974ba22f57b9d6aee0983900f0422062802c

                                      SHA256

                                      fa70a3c07be3f436506b50c93c76e8283376ce589278e036d1ead39e3ca7dcce

                                      SHA512

                                      53bf6fab967192e4848389e10aea3edcd5bb10f60b021d8decaacf6ef03c15fb475bd775d7037ab26623d8665f6950b6c60d572128259f977cd926c14677dbcb

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      d584d52f4d50a8452eec88f8199e447f

                                      SHA1

                                      3421f7a3ec87417515a6e09886f26b9871980b67

                                      SHA256

                                      04c9879b6ce4a4d3d6bb75d0dead1cd28c2a58869886415ac3d5605906ba33b4

                                      SHA512

                                      752e9e7c0f7730f756bfe41d0149c648993d5203191326db5d6d887845a4a4eebe6dfe068e1c389d8e7691ed622bf5f2be72f0255e4f2e7a86c39032c9da0fe0

                                    • memory/224-34-0x0000000005360000-0x00000000053C6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/224-33-0x0000000005400000-0x0000000005492000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/224-35-0x00000000058A0000-0x00000000058B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/224-36-0x00000000065A0000-0x00000000065DC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/224-32-0x0000000005910000-0x0000000005EB4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/224-31-0x0000000000A20000-0x0000000000A7E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3992-19-0x0000000004320000-0x0000000004321000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4168-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4168-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4244-44-0x0000000006CA0000-0x0000000006CAA000-memory.dmp

                                      Filesize

                                      40KB