Analysis

  • max time kernel
    4s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 02:20

General

  • Target

    a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe

  • Size

    2.0MB

  • MD5

    864fa073b942b1b23b62fa012c06683d

  • SHA1

    36beb5c3b1c9743662c85ae78bb25e72cca03bb5

  • SHA256

    a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b

  • SHA512

    bc428acb0c08f3083a05b564a59dcb78f635fd97d0f7b09f002418cd074941d9de15a537f8923a15f68507a0a682ad19f23a595b58d8b64708d133e72bcbb864

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

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 12 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 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.

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe
    "C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.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:2148
    • 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:2536
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2812
      • 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
        PID:1280
        • 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:324
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:776
            • 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:1916
        • C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe
          "C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:804
        • 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:2836
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {B13935D9-44A2-456A-AC81-AD649669555C} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
        1⤵
          PID:956
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:1716
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:3064
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:2024
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    3⤵
                      PID:2212
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      3⤵
                        PID:2228
                      • 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:948

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • 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\U6VHYBKA.txt

                    Filesize

                    211B

                    MD5

                    713b62d002873f91fa1b5a5cbe856950

                    SHA1

                    e871f73b0b0058075237684ccf826624db40314e

                    SHA256

                    1e65adb751f79ea09539784f17186cc4199eb2196531831fc64fad9fb2dcd37e

                    SHA512

                    4e0d618fad1697f71b95fbd6a7123a3912651d728d8912e2867f4ab02b40fb5a30fb1adcba7ab3e176fbd526ce012f58f8eb6158fbad07f5454fb54ddef6f8c4

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

                    Filesize

                    2.0MB

                    MD5

                    f2a380f85ac50c071060959c30e1edcc

                    SHA1

                    4f43836feafc6481def2da50d8a2537c20d86d40

                    SHA256

                    bd415f542d42f2e24d88ec750cd49dbd96a45a49895a6f6b86fd5d548b08fc99

                    SHA512

                    d79cfad9969ce73c23d1d92131b134018f6ee9e7943c64e8dc9efa482d6afb466e3a5e55582013833fb5d1a358ccf3aa27034603243427f3c6cc7f00bf3a192f

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

                    Filesize

                    349KB

                    MD5

                    b4a202e03d4135484d0e730173abcc72

                    SHA1

                    01b30014545ea526c15a60931d676f9392ea0c70

                    SHA256

                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                    SHA512

                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                  • memory/776-60-0x00000000012F0000-0x000000000134E000-memory.dmp

                    Filesize

                    376KB

                  • memory/804-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/804-29-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/804-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/804-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/1280-46-0x0000000000D70000-0x0000000000DCE000-memory.dmp

                    Filesize

                    376KB

                  • memory/2024-96-0x0000000000020000-0x0000000000021000-memory.dmp

                    Filesize

                    4KB

                  • memory/2024-99-0x00000000003E0000-0x000000000047C000-memory.dmp

                    Filesize

                    624KB

                  • memory/2024-103-0x00000000003E0000-0x000000000047C000-memory.dmp

                    Filesize

                    624KB

                  • memory/2024-98-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

                    Filesize

                    4KB

                  • memory/2148-43-0x0000000000380000-0x0000000000381000-memory.dmp

                    Filesize

                    4KB

                  • memory/2212-85-0x0000000001120000-0x000000000117E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2228-95-0x0000000000400000-0x0000000000420000-memory.dmp

                    Filesize

                    128KB

                  • memory/2228-91-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2228-88-0x0000000000400000-0x0000000000420000-memory.dmp

                    Filesize

                    128KB