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silverlight_download.exe

The application silverlight_download.exe has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from www.surface64.com and multiple other hosts.
MD5:
6f16a9a5faeb64a9403d741e8941d2e0

SHA-1:
73e028887d5b6b04bb09f0d0e9ce6f594f46d6c2

SHA-256:
d94d001110f0daec5a88fbbcee3d3015b96bf91fac12ec50ac02405b8515c53c

Scanner detections:
5 / 68

Status:
Potentially unwanted

Explanation:
May bundle various unwanted software without adequate user consent.

Analysis date:
4/19/2024 12:49:55 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MultiBundle
2016.0.3074

Malwarebytes
PUP.Adware.Agent
v2015.05.28.02

SUPERAntiSpyware
Trojan.Agent/Gen-Downloader
9848

Trend Micro House Call
Suspicious_GEN.F47V0501
7.2.148

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.4

File size:
262.9 KB (269,259 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\silverlight_download.exe

File PE Metadata
Compilation timestamp:
8/29/2014 12:10:27 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:7kZPoyNGEL/mEewyUavj56glGfkqNZ2PxMAoQvjPdORVA:/yeEFyl6glGfkW2ZiQrUfA

Entry address:
0x3350

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, A8, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 23, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3B, 74, 40, 00, FF, 15, 58, 71, 40, 00, 68, 30, 74, 40, 00, 68, C0, 33, 42, 00, E8, 15, 24, 00, 00, FF, 15, B0, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 03, 24, 00, 00...
 
[+]

Entropy:
7.3306

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file silverlight_download.exe has been seen being distributed by the following 2 URLs.

http://www.surface64.com/.../Silverlight_Download.exe

http://www.surface64.com/.../download.php

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