Analysis

  • max time kernel
    4s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2024 21:06

General

  • Target

    8973d3c21497e4a9fae1bbf6159f9180N.exe

  • Size

    2.0MB

  • MD5

    8973d3c21497e4a9fae1bbf6159f9180

  • SHA1

    94e06796ab80d7390596cfbedde1c5e6d014ec46

  • SHA256

    e846bdd9906220e2b67264471be1a34bd1acbf47336d343808de6294a3f06253

  • SHA512

    35ca28413578c3ad1bbfb912bb666eff715b4f7d83c0661d5c922b8c6b012b9c67dc36b9c1a486a11e54bda52facac32085cbe3428137b89e30866bb35938eb3

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYz:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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 4 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 17 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 4 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 12 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 5 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8973d3c21497e4a9fae1bbf6159f9180N.exe
    "C:\Users\Admin\AppData\Local\Temp\8973d3c21497e4a9fae1bbf6159f9180N.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:2716
    • 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:2676
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2668
    • 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:2692
      • 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:2812
      • 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:1604
        • 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:1776
    • C:\Users\Admin\AppData\Local\Temp\8973d3c21497e4a9fae1bbf6159f9180N.exe
      "C:\Users\Admin\AppData\Local\Temp\8973d3c21497e4a9fae1bbf6159f9180N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2844
    • 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:2544
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BCB6D3F2-8883-499E-ADE7-1FA2F41FC949} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:712
      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1028
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k
          4⤵
          • Maps connected drives based on registry
          PID:680
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1684
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2204
      • 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:2096

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Y0K0FPL9.txt

    Filesize

    211B

    MD5

    d7a612c75f6d0d3b41a339cd24f931b3

    SHA1

    87e1baec206a4ff746c3c175ef69f37f213d77ab

    SHA256

    42b9ba16b598eb6db43b340feda8b7d421b115060e5e3e59818a27f2b638ab9e

    SHA512

    c7007e9547a62e9c8b4bbe0dcfb1669ba412b3e3bc8538c526e3cf949b67a1e62f7a832cb30db6b95e97bd7e898b8f6656d0a0ff3a2f1a0583b9917c45453311

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

    Filesize

    2.0MB

    MD5

    68732fb60b1c8327a5a3f117740906c7

    SHA1

    80fd239cc01a3d680199f303f815136b5d13032d

    SHA256

    f2864f26f091e5f1a5f4666f1e6ae93dabf155353f83e01f21b09188461f8ad9

    SHA512

    477e23f99c0dc69975508adb70379db36b8a9ff063b6226fba0c9b99ab3b958cfdd4f8604260bd87a7d7bbfebb1a1c890d62b6efc14aa1c3b91e2290bf1e34e2

  • \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/680-94-0x0000000000270000-0x000000000030C000-memory.dmp

    Filesize

    624KB

  • memory/680-90-0x0000000000270000-0x000000000030C000-memory.dmp

    Filesize

    624KB

  • memory/680-89-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp

    Filesize

    4KB

  • memory/1604-86-0x0000000000950000-0x00000000009AE000-memory.dmp

    Filesize

    376KB

  • memory/2204-97-0x0000000000080000-0x00000000000A0000-memory.dmp

    Filesize

    128KB

  • memory/2204-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2204-104-0x0000000000080000-0x00000000000A0000-memory.dmp

    Filesize

    128KB

  • memory/2668-49-0x0000000000120000-0x00000000001BC000-memory.dmp

    Filesize

    624KB

  • memory/2668-53-0x0000000000120000-0x00000000001BC000-memory.dmp

    Filesize

    624KB

  • memory/2668-46-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2668-48-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

    Filesize

    4KB

  • memory/2692-45-0x00000000003E0000-0x000000000043E000-memory.dmp

    Filesize

    376KB

  • memory/2716-30-0x0000000002B50000-0x0000000002B51000-memory.dmp

    Filesize

    4KB

  • memory/2844-31-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2844-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2844-42-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2844-32-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB