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adobe_reader.exe

DownloadShield

The application adobe_reader.exe by DownloadShield has been detected as adware by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from downloads.downloadtastic.com and multiple other hosts.
Publisher:
DownloadShield  (signed and verified)

MD5:
b821ac3c62abf2f7518fac3ee204309c

SHA-1:
36d55759a4caeb0fa105abd64e05ad81f70e4343

SHA-256:
4ce89f797e090d610d39dc66eef8b7196bc4863d10aa2d6187845f577b375aad

Scanner detections:
7 / 68

Status:
Adware

Analysis date:
12/27/2024 5:12:03 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2016.0.3160

McAfee
Artemis!B821AC3C62AB
5600.6816

Reason Heuristics
PUP.Installer.DownloadShield
15.3.24.12

SUPERAntiSpyware
Trojan.Agent/Gen-Downloader
9978

Trend Micro House Call
Suspicious_GEN.F47V0315
7.2.83

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.3

VIPRE Antivirus
DownloadShield
38672

File size:
221.3 KB (226,640 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
3/10/2013 7:00:00 PM

Valid to:
5/9/2016 6:59:59 PM

Subject:
CN=DownloadShield, OU=Digital ID Class 3 - Microsoft Software Validation v2, 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:
309C9F4C0975E9792AECED60B8346C13

File PE Metadata
Compilation timestamp:
8/28/2014 11:10:27 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:3kZfrynnyPlRtkc4isw1uAL9gLNuSC1vE:uBlRt14lwUAKBC1vE

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:
7.8275

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://downloads.downloadtastic.com/Adobe_Reader.exe

http://www.downloadtastic.com/.../download

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