free_music_setup.exe

DownloadShield

The application free_music_setup.exe by DownloadShield 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.cloudtop.co.
Publisher:
DownloadShield  (signed and verified)

MD5:
b5cb6bc984f6f21480aa70371bed9c45

SHA-1:
d6d9445ee51afaaf8bbd3f40323bfc0dd421a450

SHA-256:
56f9abaefeecfd388171a59720aa63d89fc29772d7a11fabc79942dc0f166f97

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.

Analysis date:
10/20/2018 5:51:06 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.1.29.10

File size:
750.3 KB (768,312 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
12/21/2015 4:00:00 PM

Valid to:
3/21/2019 4:59:59 PM

Subject:
CN=DownloadShield, O=DownloadShield, L=San Jose, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
78070F8D972292519C0C15749BCB3808

File PE Metadata
Compilation timestamp:
8/3/2015 7:43:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

Entry address:
0x31FD

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 57, 33, DB, 68, 01, 80, 00, 00, 89, 5C, 24, 1C, C7, 44, 24, 14, F0, 73, 40, 00, 33, F6, C6, 44, 24, 18, 20, FF, 15, B4, 70, 40, 00, FF, 15, B0, 70, 40, 00, 66, 83, F8, 06, 74, 11, 53, E8, F3, 26, 00, 00, 3B, C3, 74, 07, 68, 00, 0C, 00, 00, FF, D0, 68, E8, 73, 40, 00, E8, 74, 26, 00, 00, 68, E0, 73, 40, 00, E8, 6A, 26, 00, 00, 68, D4, 73, 40, 00, E8, 60, 26, 00, 00, 6A, 0D, E8, C3, 26, 00, 00, 6A, 0B, E8, BC, 26, 00, 00, A3, 00, 3C, 42, 00, FF, 15, 34, 70, 40, 00, 53, FF...
 
[+]

Entropy:
7.7882

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://www.cloudtop.co/beta/.../download

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP SSL):
Connects to ps533545.dreamhost.com  (64.111.117.81:443)

TCP (HTTP):
Connects to a104-80-88-113.deploy.static.akamaitechnologies.com  (104.80.88.113:80)

TCP (HTTP):
Connects to server-52-84-33-82.ewr50.r.cloudfront.net  (52.84.33.82:80)

TCP (HTTP):
Connects to p3nlhg686c1686.shr.prod.phx3.secureserver.net  (50.62.103.1:80)

TCP (HTTP):
Connects to server-54-230-51-218.jfk5.r.cloudfront.net  (54.230.51.218:80)

TCP (HTTP):
Connects to server-54-230-51-217.jfk5.r.cloudfront.net  (54.230.51.217:80)

TCP (HTTP):
Connects to server-54-230-206-248.atl50.r.cloudfront.net  (54.230.206.248:80)

TCP (HTTP):
Connects to server-54-230-206-206.atl50.r.cloudfront.net  (54.230.206.206:80)

TCP (HTTP):
Connects to server-54-230-206-204.atl50.r.cloudfront.net  (54.230.206.204:80)

TCP (HTTP):
Connects to server-54-230-206-14.atl50.r.cloudfront.net  (54.230.206.14:80)

TCP (HTTP):
Connects to server-52-85-112-95.ind6.r.cloudfront.net  (52.85.112.95:80)

TCP (HTTP):
Connects to server-52-84-7-224.ord54.r.cloudfront.net  (52.84.7.224:80)

TCP (HTTP SSL):
Connects to server-52-84-7-218.ord54.r.cloudfront.net  (52.84.7.218:443)

TCP (HTTP):
Connects to server-52-84-132-205.atl52.r.cloudfront.net  (52.84.132.205:80)

TCP (HTTP):
Connects to a96-17-170-25.deploy.akamaitechnologies.com  (96.17.170.25:80)

TCP (HTTP):
Connects to a96-17-153-41.deploy.akamaitechnologies.com  (96.17.153.41:80)

TCP (HTTP):

TCP (HTTP):

TCP (HTTP):
Connects to server-54-230-163-67.jax1.r.cloudfront.net  (54.230.163.67:80)

TCP (HTTP):
Connects to server-54-230-141-107.sfo5.r.cloudfront.net  (54.230.141.107:80)

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