Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/03/2025, 21:24

General

  • Target

    Main.exe

  • Size

    723KB

  • MD5

    da83861c41845595ac896a9ba8908166

  • SHA1

    35fb04158b18389c0fa05d560b44d0c90b378bac

  • SHA256

    88f0200e25ae48da6d87f5bb43c0b3ca9e3af0a55544a362a4c68fca967ab790

  • SHA512

    b257db872b86fc9565222694a5bf6e74f6c825a107b3ebbc38a7e19e762b143c7ad86bce111c9eb9424d5f83fe5cb057f73456fd3c19e7f68b95acbc5fb72e90

  • SSDEEP

    12288:tOhqsVIRb2yrFriBdD3aTbgLxLYjQbyGzs0yROS44MERXjI7Uh0TAXP6KH37gi:ohDsDhCU/gLijQbyGzs0yQaMKjI7kXjl

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Office04

C2

45.61.140.75:7812

Mutex

VNM_MUTEX_DIBuVCpZfDcrHCFft2

Attributes
  • encryption_key

    q8RpA86xyuUHuOrxUGXa

  • install_name

    Windows Security.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Service Host

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot7479631857:AAFuIUMNJYKHzJ3Bc9t4FSh9ZQXlqymhFnk/sendMessage?chat_id=6291749148

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 2 IoCs
  • Stormkitty family
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Venomrat family
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 8 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 22 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.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Main.exe
    "C:\Users\Admin\AppData\Local\Temp\Main.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Roaming\Windows Security.exe
      "C:\Users\Admin\AppData\Roaming\Windows Security.exe"
      2⤵
      • Modifies Windows Defender DisableAntiSpyware settings
      • Modifies Windows Defender Real-time Protection settings
      • Modifies Windows Defender TamperProtection settings
      • Checks computer location settings
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Windows Service Host" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Security.exe" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3172
      • C:\Users\Admin\AppData\Roaming\SubDir\Windows Security.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\Windows Security.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "Windows Service Host" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Windows Security.exe" /rl HIGHEST /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4672
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4856
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2964
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3892
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VnW6JQg0KdDK.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2504
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4764
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1776
        • C:\Users\Admin\AppData\Roaming\Windows Security.exe
          "C:\Users\Admin\AppData\Roaming\Windows Security.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3888
    • C:\Users\Admin\AppData\Roaming\crack.exe
      "C:\Users\Admin\AppData\Roaming\crack.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8184.tmp.cmd""
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4992
        • C:\Windows\SysWOW64\timeout.exe
          timeout 4
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3608
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5100
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:3984
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:704
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:1592
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1504
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2932
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:732
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:4244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\614e0848ecef28477f0da7d13925012a\Admin@TRGWVDJS_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    6df4838d66fdca6de16ebabc79266850

    SHA1

    510905dee926abf0e96175385afdaa46a0dd7ae4

    SHA256

    b5a452e462908b4833a2b6080ace8f8f780a2008b56b423958a0ecab69165e11

    SHA512

    8d07bb2d85282a507f584bcd11fa12ec468e03d9b647ee2957d3850cb2216a0aa8e0330c8977e526886591282c323aa4e7ce320428373f4b04bca8d3f5949947

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Windows Security.exe.log

    Filesize

    1KB

    MD5

    10eab9c2684febb5327b6976f2047587

    SHA1

    a12ed54146a7f5c4c580416aecb899549712449e

    SHA256

    f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

    SHA512

    7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

  • C:\Users\Admin\AppData\Local\Temp\VnW6JQg0KdDK.bat

    Filesize

    210B

    MD5

    02c470f52869f9a71b2a4b75021bd131

    SHA1

    81008b5d558e2e278e6b7c5beac477d8f4d672d6

    SHA256

    d262c322bacfa7a7aa1fa1d24f49aee10f8837ba5d4598b3a060e45606ba8092

    SHA512

    a73585aeb3d2551969507bbf6b7056117ee397a44fa2277cb0f84ae0779c4ba162e774449cf7b07aca390544f6c946b94b3f0d414d18b87ff03e501a8fe7a992

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aqfltush.pk2.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\places.raw

    Filesize

    5.0MB

    MD5

    f0e5cf7576d81a1e818ff6e31fa0547d

    SHA1

    33e1e22fa331be5bc500a01817dc3e0780280433

    SHA256

    107cce37eb0dd54e02a0543919973bc1e3d0b720c1e7240c477fca7d56f4f6eb

    SHA512

    974e406eec4d380371cd9c244f7e51edc900721165f365207378a245feba0945885d55fa56191431ce244767ff0ab1e4c889c1e62f653311780c1d62e778ff18

  • C:\Users\Admin\AppData\Local\Temp\tmp8184.tmp.cmd

    Filesize

    151B

    MD5

    74f9ed497f5880c63bfcb5f3b6861836

    SHA1

    cf45a5569a7b4c06d8866d0193ee8ec623b91bce

    SHA256

    a60e3e7e32a78524093468b6f1325f2a8c06643081a74694f703422621bbf4a6

    SHA512

    e102ecbbe564320f9d3ca82584c05a709bcba697b8ae27adc4347b39f6e6ea5f43e5ffb7caf243378f028c6e49a47da06e07d2324421f302957dd902ac20e29c

  • C:\Users\Admin\AppData\Local\fb0ecab23b3c7801a3ffd39891ea38d2\msgid.dat

    Filesize

    6B

    MD5

    69dff9b1fc85bfc284ccdbfa6764ac27

    SHA1

    dbfc66049aaa6d3cffbffa8472f48c649602c6c0

    SHA256

    fd472979e24533fb0f2ce7d4788abc0108c9cfa4c8a137bede0926f4c6653201

    SHA512

    27f4f3b96fcd0ae8baaf49ee71f68941e72b08b9393c96643550987ba8d1f2f202f9812ca52e8ffcec3f059fe8f5a7b5c87898cebcee6f0eb5b0470f2019133f

  • C:\Users\Admin\AppData\Roaming\Windows Security.exe

    Filesize

    534KB

    MD5

    e08257dba54a675925b5fe410fb044b6

    SHA1

    4a15b592c595bae0abe7a3b160c026805700c6b6

    SHA256

    03ebf0bf1d1017311113a4a32b757a5ad415d29301ff1c736d504beba7244621

    SHA512

    45a343389a78269a861f99e7b1cf72c6be384043b36491b330ff48f7c940d2bcecd3d2f688adfa5b77029f39cc745926960f50d5506025726a0437d4b94bc2c2

  • C:\Users\Admin\AppData\Roaming\crack.exe

    Filesize

    8KB

    MD5

    9215015740c937980b6b53cee5087769

    SHA1

    a0bfe95486944f1548620d4de472c3758e95d36a

    SHA256

    a5390a297f14ef8f5be308009ec436d2a58598188dbb92d7299795a10ba1c541

    SHA512

    5b9bbf1836466d803d3e160a38e10c8397aa3966c120ab6435a52b7d0a09eb664ef2172bf0e7e2de1cc3eae261167c9355fa7ac3b1b7e4504a7e07b82c4b90e2

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    170KB

    MD5

    36e79d9c029304417b9e0a142eb22a42

    SHA1

    ec3e50b99c320bf80cf990558da8707fbb52edab

    SHA256

    b9b3b3630d78ed68c6cca1fb41fe51fa1626c6a58bd62387d824e344b8e451bb

    SHA512

    d2732de13b780eff3c14a4122410f02395a2d1cc36f7c28f9d8a58f07cc20528860ff169d35ba72cb64f0f0d58ca98f5a8bd962447c33f637ef9e8a0fc3ae9c8

  • memory/1000-1-0x0000000000030000-0x00000000000EC000-memory.dmp

    Filesize

    752KB

  • memory/1000-0-0x00007FFA2BB73000-0x00007FFA2BB75000-memory.dmp

    Filesize

    8KB

  • memory/1920-41-0x0000000005A10000-0x0000000005FB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1920-44-0x0000000005630000-0x0000000005696000-memory.dmp

    Filesize

    408KB

  • memory/1920-45-0x00000000059D0000-0x00000000059E2000-memory.dmp

    Filesize

    72KB

  • memory/1920-46-0x00000000067C0000-0x00000000067FC000-memory.dmp

    Filesize

    240KB

  • memory/1920-42-0x0000000005580000-0x0000000005612000-memory.dmp

    Filesize

    584KB

  • memory/1920-201-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

    Filesize

    4KB

  • memory/1920-39-0x0000000000C70000-0x0000000000CFC000-memory.dmp

    Filesize

    560KB

  • memory/1920-36-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

    Filesize

    4KB

  • memory/2348-73-0x0000000006F80000-0x0000000006F8A000-memory.dmp

    Filesize

    40KB

  • memory/3924-71-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3924-43-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3924-40-0x00000000006C0000-0x00000000006C8000-memory.dmp

    Filesize

    32KB

  • memory/4856-91-0x00000000073A0000-0x0000000007436000-memory.dmp

    Filesize

    600KB

  • memory/4856-67-0x0000000005E20000-0x0000000005E6C000-memory.dmp

    Filesize

    304KB

  • memory/4856-54-0x0000000004E40000-0x0000000004E62000-memory.dmp

    Filesize

    136KB

  • memory/4856-76-0x0000000070050000-0x000000007009C000-memory.dmp

    Filesize

    304KB

  • memory/4856-86-0x00000000063A0000-0x00000000063BE000-memory.dmp

    Filesize

    120KB

  • memory/4856-75-0x00000000063C0000-0x00000000063F2000-memory.dmp

    Filesize

    200KB

  • memory/4856-87-0x0000000007000000-0x00000000070A3000-memory.dmp

    Filesize

    652KB

  • memory/4856-88-0x0000000007760000-0x0000000007DDA000-memory.dmp

    Filesize

    6.5MB

  • memory/4856-89-0x0000000007120000-0x000000000713A000-memory.dmp

    Filesize

    104KB

  • memory/4856-90-0x0000000007190000-0x000000000719A000-memory.dmp

    Filesize

    40KB

  • memory/4856-66-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

    Filesize

    120KB

  • memory/4856-92-0x0000000007320000-0x0000000007331000-memory.dmp

    Filesize

    68KB

  • memory/4856-55-0x0000000004EE0000-0x0000000004F46000-memory.dmp

    Filesize

    408KB

  • memory/4856-95-0x0000000007460000-0x000000000747A000-memory.dmp

    Filesize

    104KB

  • memory/4856-93-0x0000000007350000-0x000000000735E000-memory.dmp

    Filesize

    56KB

  • memory/4856-96-0x0000000007440000-0x0000000007448000-memory.dmp

    Filesize

    32KB

  • memory/4856-53-0x0000000005060000-0x0000000005688000-memory.dmp

    Filesize

    6.2MB

  • memory/4856-94-0x0000000007360000-0x0000000007374000-memory.dmp

    Filesize

    80KB

  • memory/4856-52-0x00000000024B0000-0x00000000024E6000-memory.dmp

    Filesize

    216KB

  • memory/4856-61-0x00000000057D0000-0x0000000005B24000-memory.dmp

    Filesize

    3.3MB

  • memory/5100-257-0x0000000006390000-0x000000000639A000-memory.dmp

    Filesize

    40KB

  • memory/5100-203-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/5100-263-0x0000000006900000-0x0000000006912000-memory.dmp

    Filesize

    72KB

  • memory/5100-37-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/5100-38-0x0000000000840000-0x0000000000870000-memory.dmp

    Filesize

    192KB