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YellowStar.exe Trojan Agent Analysis

Updated 17 days ago
Checked by Malware Check
YellowStar.exe

Technical Analysis

File Name YellowStar.exe
File Type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Scanner Version 1.0.231.174
Database Version 2025-12-23 01:00:34 UTC
⚠

Trojan.Win32.Agent.dd!n

Malware family: Agent

Trojan Agent malware disguises itself as legitimate software while performing unauthorized activities including data theft and providing remote system access to threat actors.
N/A
Detection Rate
217,600
File Size (bytes)
2025-12-23
Analysis Date

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File Identification

Hash Type Value Action
MD5
c1a9ff1b1ed32c47c36f88cef28fcc2e
SHA1
13a5c4de84f5944de09e940bca6bec9a4cf8bd3a
SHA256
8c6c5774416679c106e0233814c77aaa2c679a58b010545dcb39abddd9135b79
SHA512
122dd40c9329525230621d874b672f1b1ce3907f64c019debe6ccf41b8b3ae766ab5cbacf9940c894c9e5806dbc3ac92c83867f0063aa678a2143b4974ad1050
ImpHash
f34d5f2d4577ed6d9ceec516c1f5a744

PE Analysis

Basic Information

▼
Icon
Hash: fb8c20e23d3bebd6cd42e4bc849ed3eb
Fuzzy: 9e67896c5532ea333c232a4c39d22148
dHash: 9230f08ec471cccc
Image Base 0x00400000
Entry Point 0x0041f50e
Compilation Time 2023-03-11 23:58:38
Checksum 0x00000000 (Actual: 0x0003cb21)
OS Version 4.0
PEiD Signatures PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 1 libraries
mscoree
Exports 0 functions
Resources 10 Resources
Sections 3 Sections

Version Information

▼
Translation 0x0000 0x04b0
Comments
CompanyName
FileDescription Yellow Star
FileVersion 1.0.0.0
InternalName YellowStar.exe
LegalCopyright Copyright © 2022
LegalTrademarks
OriginalFilename YellowStar.exe
ProductName Yellow Star
ProductVersion 1.0.0.0
Assembly Version 1.0.0.0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00002000 120,084 bytes 120,320 bytes 6.32 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 26CC1CA063A7F7E94AF0C57D68796276
.rsrc 0x00020000 96,104 bytes 96,256 bytes 3.88 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 4EC374453D347AB33AC9759351DE0B6D
.reloc 0x00038000 12 bytes 512 bytes 0.10 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ A8A68E33E253CD9A6C245FD02E54B8A4

Resource Analysis

▼
Total Resources: 10 (95,510 bytes)
Resource Type Count Total Size Percentage
RT_ICON 7 94,104 bytes
98.5%
RT_GROUP_ICON 1 104 bytes
0.1%
RT_VERSION 1 812 bytes
0.9%
RT_MANIFEST 1 490 bytes
0.5%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Trojan.Win32.Agent.dd!n Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Agent.dd!n without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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