Analysis

  • max time kernel
    3s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-09-2024 16:24

General

  • Target

    887882ba907c0f9196f6b42b76005250N.exe

  • Size

    2.0MB

  • MD5

    887882ba907c0f9196f6b42b76005250

  • SHA1

    d2bd39841a48625bd7a73b3ddce0c7c6a20033b9

  • SHA256

    a3be0557368e88d782364a647eff37e6d41bc10aeb6e9747de39979d96ccc044

  • SHA512

    bf6b2ba6231cbd854b3a7ba06dc570fdace30a9ecdbef9a120b955c0836aca567e1c84f5e48c829e8bcbb680717d6528fc57e2b8af548495e23260619e5606db

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYI:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YS

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 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 4 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 2 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).

  • 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 3 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 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\887882ba907c0f9196f6b42b76005250N.exe
    "C:\Users\Admin\AppData\Local\Temp\887882ba907c0f9196f6b42b76005250N.exe"
    1⤵
    • Quasar RAT
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3032
    • 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:2752
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2548
    • 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:2140
      • 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:2412
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:3012
      • C:\Users\Admin\AppData\Local\Temp\887882ba907c0f9196f6b42b76005250N.exe
        "C:\Users\Admin\AppData\Local\Temp\887882ba907c0f9196f6b42b76005250N.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2660
      • 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:2940
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {F0FABC76-61D1-4A6E-816C-B5544E2F2647} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
      1⤵
        PID:1712
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:1684
            • C:\Users\Admin\AppData\Local\Temp\vnc.exe
              "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
              3⤵
                PID:2000
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  4⤵
                    PID:584
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  3⤵
                    PID:2472
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    3⤵
                      PID:1636
                    • 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:1540

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  349KB

                  MD5

                  b4a202e03d4135484d0e730173abcc72

                  SHA1

                  01b30014545ea526c15a60931d676f9392ea0c70

                  SHA256

                  7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                  SHA512

                  632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\0MYTEPDB.txt

                  Filesize

                  211B

                  MD5

                  87ac888fb9a1cf979d612fcd7a422743

                  SHA1

                  b9a6fb30610350986d49d247357d521f2409d26b

                  SHA256

                  d98b70f8009fc3238045032f460d8639575d3b9681c3621017d0a0adc166cd43

                  SHA512

                  f801a2830890cf05b5cd70261b0c9133dfca74b68e434d754515c24d52b382207464bf5794508cbe51588732fa0b855142fad2daf6f08c12d170700318b4bd56

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

                  Filesize

                  2.0MB

                  MD5

                  c2a0f3ef70af7425c3abb80a948e12c5

                  SHA1

                  bdd0d155ac860ae4769cc210b42a402e809a203a

                  SHA256

                  a0799819ed102e734586c647f1c9559901c396e7dfc9fd1433fff4d33b47868c

                  SHA512

                  1b1a7f673a95f5ed92b41dafac58e7c3732e84fbe98e3c51141413bb786621a0565376dfe2104277e3b57ee3b983c0f2c3aedc552623fb7b98ba004d644622b6

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

                  Filesize

                  405KB

                  MD5

                  b8ba87ee4c3fc085a2fed0d839aadce1

                  SHA1

                  b3a2e3256406330e8b1779199bb2b9865122d766

                  SHA256

                  4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                  SHA512

                  7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                • memory/1636-88-0x00000000000C0000-0x00000000000E0000-memory.dmp

                  Filesize

                  128KB

                • memory/1636-84-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1636-81-0x00000000000C0000-0x00000000000E0000-memory.dmp

                  Filesize

                  128KB

                • memory/2140-46-0x0000000000BC0000-0x0000000000C1E000-memory.dmp

                  Filesize

                  376KB

                • memory/2548-47-0x0000000000020000-0x0000000000021000-memory.dmp

                  Filesize

                  4KB

                • memory/2548-49-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

                  Filesize

                  4KB

                • memory/2548-50-0x0000000000250000-0x00000000002EC000-memory.dmp

                  Filesize

                  624KB

                • memory/2548-54-0x0000000000250000-0x00000000002EC000-memory.dmp

                  Filesize

                  624KB

                • memory/2660-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2660-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2660-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/2660-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                  Filesize

                  128KB

                • memory/3012-98-0x0000000000D50000-0x0000000000DAE000-memory.dmp

                  Filesize

                  376KB

                • memory/3032-30-0x0000000000D20000-0x0000000000D21000-memory.dmp

                  Filesize

                  4KB