Analysis

  • max time kernel
    4s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 22:07

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

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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.

  • 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 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
    "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2476
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2168
    • 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
      PID:2640
      • 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:2072
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2232
          • 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:1128
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\c5oo3vouQzHG.bat" "
            4⤵
              PID:1756
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2920
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2312
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1992
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 1540
                  4⤵
                  • Program crash
                  PID:2340
            • C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe
              "C:\Users\Admin\AppData\Local\Temp\59713df01c293ed2534f636768c25197408d8489cbee480720571972540d5a2b.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2688
            • 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:2788
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {F5554A16-2BE7-4993-9B85-858FB700524A} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:3020
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2184
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:2116
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:1744
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:3068
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:1376
                          • 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
                            3⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:1452

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\c5oo3vouQzHG.bat

                        Filesize

                        208B

                        MD5

                        4e954ef253b37e9c4906bbc4fea75cba

                        SHA1

                        1bc964874e34f29262baa03f0b23646ba17daeb3

                        SHA256

                        d3f1e3aee14360927783940bcbecd14ed34b2ea58ee8ebdade6b82c0865770bf

                        SHA512

                        95cc5ab9088040bb7278c0c462b1ec027bfe7bdb077b162ba9df2cf005c5e6acaaf41725cf6c9cf82efefac35a7395f82c040f2742ad155c88214dedd7980576

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\8R1K4AWC.txt

                        Filesize

                        211B

                        MD5

                        8de8464336482c0660fa4fc7dc55fe89

                        SHA1

                        c1de4b4a0f2a5ef7ce415914a20965ef76066414

                        SHA256

                        0be3c71503dbd720b6493a34509276b34feb401655b9027c992b0d4293ff054f

                        SHA512

                        d9e53862619efedd5dd11007336f2c930025903a0a8f7179a12c200dca210efc1992cecd4f17a8040cc6f81b2edacbcc6bf73cb9baaba3449e92a1fe9aa10430

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

                        Filesize

                        2.0MB

                        MD5

                        79342915de91e978576a512483a4bd50

                        SHA1

                        e8801eaaaa70dcf0a174291a5e45304ef61e343a

                        SHA256

                        cc251c58d56262b37726cbba3d2fca11bdbcb09918b4be833e3bc8b3381a1a05

                        SHA512

                        76cbaffcad972e77e64210e90b058c48d7a84385992c4e9fe61821480e602398fc3faba6ddceebb4dce1ef18c3bd0df585e7dbec205dc9e3cb985bc54c98d088

                      • \Users\Admin\AppData\Local\Temp\vnc.exe

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                      • \Users\Admin\AppData\Local\Temp\windef.exe

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/760-41-0x00000000006B0000-0x00000000006B1000-memory.dmp

                        Filesize

                        4KB

                      • memory/1376-127-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/1744-105-0x0000000000450000-0x00000000004EC000-memory.dmp

                        Filesize

                        624KB

                      • memory/1744-101-0x0000000000450000-0x00000000004EC000-memory.dmp

                        Filesize

                        624KB

                      • memory/1744-100-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

                        Filesize

                        4KB

                      • memory/2168-51-0x0000000000460000-0x00000000004FC000-memory.dmp

                        Filesize

                        624KB

                      • memory/2168-44-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2168-46-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

                        Filesize

                        4KB

                      • memory/2168-47-0x0000000000460000-0x00000000004FC000-memory.dmp

                        Filesize

                        624KB

                      • memory/2232-64-0x00000000001A0000-0x00000000001FE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2640-54-0x00000000010D0000-0x000000000112E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2688-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2688-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2688-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2688-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/3068-122-0x0000000000050000-0x00000000000AE000-memory.dmp

                        Filesize

                        376KB