Analysis

  • max time kernel
    5s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 04:47

General

  • Target

    e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe

  • Size

    2.0MB

  • MD5

    0162684567a69530c945aca1ef2891a1

  • SHA1

    4d291c774ef5e00a33d1177d14faf1721d776f5e

  • SHA256

    e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22

  • SHA512

    f91b4ca6ef43febba691b31b25790b30e0413537d28685aa8016bfb552d2ba6cb4999c22bfb4ea98ae675c21f85a2529a36cb1f2f0b3a3e6f733327df377d13e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYY:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YW

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 9 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 7 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 AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe
    "C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.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:2772
    • 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:2680
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2640
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2832
      • 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:1928
      • 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
        PID:2028
        • 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:2384
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\SSplcWiXY2HN.bat" "
          4⤵
            PID:804
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:2424
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:2488
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 1512
              4⤵
              • Program crash
              PID:3000
        • C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe
          "C:\Users\Admin\AppData\Local\Temp\e8cabc1c9b84f0c5ae3e1f9617ee0545e7d7599aa997abfcc06b3e124aa42a22.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2692
        • 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:2316
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {CB1897C1-ED2E-46C0-AB8D-AA1D5E00DF99} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
        1⤵
          PID:1824
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:1828
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:2312
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:2116
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    3⤵
                      PID:3060
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      3⤵
                        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
                        3⤵
                        • Scheduled Task/Job: Scheduled Task
                        PID:328

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\SSplcWiXY2HN.bat

                    Filesize

                    208B

                    MD5

                    1e52a587a07676e27f7179cafe370517

                    SHA1

                    71ea3ac8aae0051b95836bcebf18c075674b177e

                    SHA256

                    0dda025803e6896886890474998a4be6e301e84ad63bc9465dfc2dd8e2acea8c

                    SHA512

                    a6deffca4599321fd6e702368219f6b180b0746b789469e12fabbd4da2a1a0b12053322d092275dea88d42e034e46a03a4ccd54faa583457dc7d04b043ae2f2b

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

                    Filesize

                    405KB

                    MD5

                    b8ba87ee4c3fc085a2fed0d839aadce1

                    SHA1

                    b3a2e3256406330e8b1779199bb2b9865122d766

                    SHA256

                    4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                    SHA512

                    7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\LQ7C3LED.txt

                    Filesize

                    213B

                    MD5

                    9fbc9e60fb9cfcfc197aadf52a080f6b

                    SHA1

                    5328b0774b0a216bacd53ab38ddf123da1c6d712

                    SHA256

                    bf74068cd8b7c5b6a9a424db5492ec09038cd4d14d5fca9fb9c6a51d1fc1387e

                    SHA512

                    b6e2e3c5b9873e8adcbb98da2b1f519fd99f48d067b739e8e6662f73b1950c41941d9c90abdb1a9e76447c7de8703ec5a6e6078332be49bb8ddedaa26000d0c8

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

                    Filesize

                    2.0MB

                    MD5

                    eaf08dd370456273ead94b86163775a0

                    SHA1

                    12ff67ddb777655835fdee69000fe1c0da60f10d

                    SHA256

                    59d137d336ab301f4dc191872122236fc5bf21f4b8c77d28c2a0abafd9f8d5b1

                    SHA512

                    7f1d45771e3beff7b600ea43401829cf39de4c2e79a266540c147f5075ac8fae5bbc633d7a76150d3b8f0b576b18b2fcd9e705494293253de2711d4bd8a258ce

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

                    Filesize

                    349KB

                    MD5

                    b4a202e03d4135484d0e730173abcc72

                    SHA1

                    01b30014545ea526c15a60931d676f9392ea0c70

                    SHA256

                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                    SHA512

                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                  • memory/2028-63-0x00000000003E0000-0x000000000043E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2116-113-0x0000000000270000-0x000000000030C000-memory.dmp

                    Filesize

                    624KB

                  • memory/2116-111-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp

                    Filesize

                    4KB

                  • memory/2140-103-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2640-48-0x0000000000420000-0x00000000004BC000-memory.dmp

                    Filesize

                    624KB

                  • memory/2640-47-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

                    Filesize

                    4KB

                  • memory/2640-45-0x0000000000020000-0x0000000000021000-memory.dmp

                    Filesize

                    4KB

                  • memory/2640-52-0x0000000000420000-0x00000000004BC000-memory.dmp

                    Filesize

                    624KB

                  • memory/2692-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2692-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2692-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2692-29-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2772-84-0x00000000006D0000-0x00000000006D1000-memory.dmp

                    Filesize

                    4KB

                  • memory/2772-42-0x00000000006D0000-0x00000000006D1000-memory.dmp

                    Filesize

                    4KB

                  • memory/2832-53-0x0000000000970000-0x00000000009CE000-memory.dmp

                    Filesize

                    376KB

                  • memory/3060-112-0x0000000000FC0000-0x000000000101E000-memory.dmp

                    Filesize

                    376KB