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speedup.exe

PowerPack

Linkular LLC

The application speedup.exe by Linkular 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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from d3ijsb1ryk5jd8.cloudfront.net and multiple other hosts.
Publisher:
Linkular LLC  (signed and verified)

Product:
PowerPack

Version:
1.0.0.1044

MD5:
493cf5753cf198e427214500d291473a

SHA-1:
1830584e1a3fd338dcf5dbc4e8e09ad5ff94508c

SHA-256:
a2321cd35c8a223cfb22cfc67b23acec6c342bcba9c2db1430b450e7df4415f2

Scanner detections:
7 / 68

Status:
Adware

Analysis date:
4/6/2025 9:38:25 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Linkuar-B [PUP]
2014.9-140110

AVG
MalSign.Skodna.Linkular
2015.0.3599

Dr.Web
Adware.Downware.1308
9.0.1.010

ESET NOD32
Win32/AdWare.Linkular.AH
8.9257

Malwarebytes
PUP.Optional.Linkular.A
v2014.01.10.08

Reason Heuristics
PUP.Linkular.H
14.8.7.22

Trend Micro House Call
TROJ_GEN.F47V1006
7.2.10

File size:
69.4 KB (71,072 bytes)

Product version:
1.0.0.1044

Copyright:
Linkular LLC, 2012

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\speedup.exe

Digital Signature
Signed by:
Linkular LLC

Authority:
GoDaddy.com, Inc.

Valid from:
8/28/2012 7:42:21 AM

Valid to:
8/28/2013 7:42:21 AM

Subject:
CN=Linkular LLC, O=Linkular LLC, L=Redondo Beach, S=CA, C=US

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
2B9E504F75FA3A

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:06 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:OumhxebkJf+FTXJw/3d/H/jBF72XG3PWgWwhELE:OuxkZuTXJw/d/HLBHcwhF

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 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, 58, 6F, 44, 00, E8, 09, 2C, 00, 00, A3, A4, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 2E, 44, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://d3ijsb1ryk5jd8.cloudfront.net/cl/inst/bundles/SpeedUpMyPC/.../SpeedUp.exe

http://dmrm038s4vkzd.cloudfront.net/cl/inst/bundles/SpeedUpMyPC/.../SpeedUp.exe

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