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grammarly.exe

Konof

PlatformFlash (New Media Holdings Ltd.)

The application grammarly.exe, “Konof Setup ” by PlatformFlash (New Media Holdings) has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore installer. The file has been seen being downloaded from www.sharebitstower.com.
Publisher:
PlatformFlash (New Media Holdings Ltd.)  (signed and verified)

Product:
Konof

Description:
Konof Setup

MD5:
443b24d040a616d42e41d47b48425504

SHA-1:
64fc4ae0cd94f8cd3aa9fecbd4344b7220c280d1

SHA-256:
bdf029e00c25ea23f059fad63452d0faf5aa2dcca24c999bf0d5c9495399cef1

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/16/2024 1:52:31 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.NMH (M)
17.3.16.9

File size:
1.1 MB (1,150,944 bytes)

Product version:
1.8

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\grammarly.exe

Digital Signature
Signed by:
PlatformFlash (New Media Holdings Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
3/16/2016 6:58:06 PM

Valid to:
7/9/2017 5:22:19 PM

Subject:
CN=PlatformFlash (New Media Holdings Ltd.), O=PlatformFlash (New Media Holdings Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121AC672D5AB416D17B426FE33CECEB6E62

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The file grammarly.exe has been seen being distributed by the following URL.

http://www.sharebitstower.com/3U9YqwOK_M4BOwixFplV9OCpcXuz3rbDmw2EgM8xiWOSLmxLzEU4IUNuXbiEVpHEH4qmwzRHONsQZC_k3moiT0dg3pGlyWkxqfgTqY7upXOp4YDFdwCiEZot7O ln185QXGxP1xyDY9tN Io6EjHU4mBWsrdNjHGziGD34FDTmPFoRZECVgJA_z582I vtSsBeTSMbZhHnr5N9 gqM3Du_ilAF4LCkZxQVkvtDrJaY4YCiGcnz7RHGgB3UzbdS5GO0INJkRSd6qwe6OZ2 2mJBXKa1gexMHcZjn8Rzg wUkPPKfLOPxRoGlLvHzweEjfzRoTLACEemSEb0o5LulKjAf8VG68ow9771cPW3audYshl4HSm7PGWhp GiQ9aLBAPic9OjyZ Nc_0p_QFUKcaqs1ss5mhpOpqjc6_7nSZ 6CDTiB tqMokXGvfYU5my fbcUvKsIiALZGi3XzE1qw2_XwKUPIBwoyQBnsu3AwtU4rV6of55JD0WnINSEWU7cAHaAW5MsA42J_cJnz1QFzzppo4m4DYLlSQavD Qlc8fcdTo0JqA=-G1YAAES3eV7qeYvsiKhkCwo24MApW2iwN95s2AEbjW3guFjjuwZ56C8J9uFIoBXZrUifullThsxrCGzRjg8=

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