Analysis

  • max time kernel
    4s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2024 21:53

General

  • Target

    4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b.exe

  • Size

    2.0MB

  • MD5

    23c3754d9565df6ad592ce8a89442068

  • SHA1

    a734c9571929a7153cf543b130626ff9a65d7b95

  • SHA256

    4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b

  • SHA512

    6bb9bd7795ba1ae282544e60109f093a96754a8c6c8ae777ba71001f51b7ecb42385ee7a1145329abd1b625e705ce8548cd237c7a15882c3e612ed941886a4fb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yf

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 6 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 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 2 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 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 5 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b.exe
    "C:\Users\Admin\AppData\Local\Temp\4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b.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:2100
    • 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 behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2928
      • 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:1736
        • 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:2164
        • 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:2916
          • 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:2892
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\NzF0WsQauC5W.bat" "
            4⤵
              PID:3056
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:844
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:856
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:884
                    • 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:2088
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 1472
                  4⤵
                  • Program crash
                  PID:2640
            • C:\Users\Admin\AppData\Local\Temp\4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b.exe
              "C:\Users\Admin\AppData\Local\Temp\4f10043fab91da7644be1100ada2093b7bdbdd1cd1ce8ab9b6121c2493347e2b.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2376
            • 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:2732
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {FD95B470-E1F6-4623-9139-D96DA0BE5B4B} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
            1⤵
              PID:2784
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2456
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:1152
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:848
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:1632
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:1104
                          • 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:2244

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\NzF0WsQauC5W.bat

                        Filesize

                        208B

                        MD5

                        2bb6002942ab945452fcdcc5c289eee1

                        SHA1

                        08f15165e15371a412cb6a1f9095b2b879602327

                        SHA256

                        4e16e890045ab1ad9ee155d388f7249e38b9636fff26b647dcc97aa00f7f1517

                        SHA512

                        3c445b25c3939b88a0a77bcff22830ebf0e9063dd8a9d0f081abde083429e6476980004799ed4f6b33e30212de80764666e37a72912b2a93a2a952e386c1581c

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

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\88YQ1MFN.txt

                        Filesize

                        213B

                        MD5

                        da3e96f6b5349399a03593cc35ed5272

                        SHA1

                        b29284e1889ecd643979853bd3e4aa6407a558b6

                        SHA256

                        888a99326ec73a159244cf3738259ece690f1229233a4c14d44ebc42668b8a59

                        SHA512

                        7e9c4c7100e2fb171568873ad8a932b786e2cde45cebd53f98e6fb2e756d882630fbe2b62e90055849e9f1a432025313ddaabec875055adb302b97803a96a20c

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

                        Filesize

                        2.0MB

                        MD5

                        75c6ac23a880f95f8826e77734ef2ae8

                        SHA1

                        a374aa409a8e3913a1dc3ad296687fc7b5638a9f

                        SHA256

                        a078820e47f7532f7909748f60567b2845a1c710cdc14168d015316eaac74059

                        SHA512

                        b22d2d08a5500f78a4075dd68f04d347ee381fdf0ee1019ec1a692592617b2b6176358033968040f1eb1e77ad05488816699bc402b1d7d1f471a3db28290b810

                      • \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/848-109-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                        Filesize

                        4KB

                      • memory/848-107-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/848-114-0x00000000001D0000-0x000000000026C000-memory.dmp

                        Filesize

                        624KB

                      • memory/848-110-0x00000000001D0000-0x000000000026C000-memory.dmp

                        Filesize

                        624KB

                      • memory/884-132-0x0000000000270000-0x00000000002CE000-memory.dmp

                        Filesize

                        376KB

                      • memory/1104-98-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/1632-105-0x0000000000820000-0x000000000087E000-memory.dmp

                        Filesize

                        376KB

                      • memory/1736-46-0x00000000002E0000-0x000000000033E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2100-106-0x00000000006F0000-0x00000000006F1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2100-43-0x00000000006F0000-0x00000000006F1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2376-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2376-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2376-29-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2376-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2916-58-0x0000000000C00000-0x0000000000C5E000-memory.dmp

                        Filesize

                        376KB