Threat Database Trojan Downloader TrojanDownloader:JS/Nemucod.H

TrojanDownloader:JS/Nemucod.H

By GoldSparrow in Trojan Downloader

Threat Scorecard

Threat Level: 90 % (High)
Infected Computers: 53
First Seen: March 20, 2015
Last Seen: June 11, 2026
OS(es) Affected: Windows

The TrojanDownloader:JS/Nemucod.H is a severe cyber threat that is used by attackers to drop malware on infected systems. Researchers point out that the Nemucod trojan downloader can download and run the Miuref trojan on your computer that can hijack your browser, direct you to visit unsafe Internet locations and display malvertising. A computer infected with the Nemucod trojan downloader is exposed to viruses, worms and keyloggers that may allow hackers to steal data, log-in details and use system resources for Bitcoin mining. The Nemucod trojan can use an executable file named '77652459.exe' placed in the temp folder of Windows to perform its operations. Also, you may have downloaded the Nemucod payload as an attached file from spam emails and can be introduced into your OS by riskware. Computer users that detect TrojanDownloader:JS/Nemucod.H in their system might want to consider using a trusted anti-malware utility to remove it and purge malware threats it might have installed.

Analysis Report

General information

Family Name: Trojan.Farfli.E
Signature status: No Signature

Known Samples

MD5: 50dcc60f99e2f92f9e238d61451f15ed
SHA1: 88a0dde2fe46a7a43f0692810a77cdeec2d64ff0
SHA256: 1288FB9379EF473BB6734842F35CBBB6A88187D3F2DE0B2F7DBE7B0E8BDAAE01
File Size: 225.28 KB, 225280 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File doesn't have security information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
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  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

File Traits

  • big overlay
  • No Version Info
  • x86

Block Information

Total Blocks: 15
Potentially Malicious Blocks: 0
Whitelisted Blocks: 13
Unknown Blocks: 2

Visual Map

0 0 0 0 ? 0 ? 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

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