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Windows
Analysis Report
Voice.ai-Downloader-alphaver-9aab5f151e93466090a2c1fe0b2e9d6e(1).exe
Overview
General Information
| Sample Name: | Voice.ai-Downloader-alphaver-9aab5f151e93466090a2c1fe0b2e9d6e(1).exe |
| Analysis ID: | 1346300 |
| MD5: | b8162dccc95c2ed40a3fd946dd127242 |
| SHA1: | 27899142d055dcce7ad3288028c8e3187421275c |
| SHA256: | 23ecba0be777d9b7a5683d0939d9ae17c4427c46e51ff959e91785d83c60efd1 |
| Tags: | AIexe |
| Infos: |  |
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Detection
zgRAT
| Score: | 30 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 20% |
Compliance
| Score: | 52 |
| Range: | 0 - 100 |
Signatures
Yara detected zgRAT
Drops large PE files
.NET source code contains potential unpacker
Tries to open files direct via NTFS file id
Creates files inside the driver directory
Drops certificate files (DER)
Contains functionality to query locales information (e.g. system language)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to dynamically determine API calls
Uses the system / local time for branch decision (may execute only at specific dates)
Contains long sleeps (>= 3 min)
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Drops PE files to the windows directory (C:\Windows)
Found evasive API chain checking for process token information
Creates driver files
Checks if the current process is being debugged
Binary contains a suspicious time stamp
Creates a start menu entry (Start Menu\Programs\Startup)
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality for read data from the clipboard
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Deletes files inside the Windows folder
Contains functionality to shutdown / reboot the system
Creates files inside the system directory
PE file contains sections with non-standard names
Queries device information via Setup API
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Contains functionality to call native functions
Found dropped PE file which has not been started or loaded
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Enables debug privileges
PE file does not import any functions
Sample file is different than original file name gathered from version info
Extensive use of GetProcAddress (often used to hide API calls)
Enables driver privileges
Installs a global mouse hook
Enables security privileges
Contains functionality to read device registry values (via SetupAPI)
Creates or modifies windows services
Queries disk information (often used to detect virtual machines)
Uses Microsoft's Enhanced Cryptographic Provider
Classification
| Name | Description | Attribution | Blogpost URLs | Link |
|---|---|---|---|---|
| zgRAT | zgRAT is a Remote Access Trojan malware which sometimes drops other malware such as AgentTesla malware. zgRAT has an inforstealer use which targets browser information and cryptowallets.Usually spreads by USB or phishing emails with -zip/-lnk/.bat/.xlsx attachments and so on. | No Attribution |
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| Source: |
Code function: |
6_2_00CD9EB7 | |
| Source: |
Code function: |
6_2_00CFF961 | |
| Source: |
Code function: |
6_2_00CD9C99 | |
| Source: |
Code function: |
7_2_00809EB7 | |
| Source: |
Code function: |
7_2_0082F961 | |
| Source: |
Code function: |
7_2_00809C99 | |
Compliance |
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| Source: |
Static PE information: |
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| Source: |
Window detected: | ||