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javaupdate.exe

Linkular LLC

The application javaupdate.exe by Linkular 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.mspowerpack.com.
Publisher:
Linkular LLC  (signed and verified)

MD5:
ad52a6ff179e0ac42d5182aac6e5f0bf

SHA-1:
c461af15fda92cbda923f24a0dc55a18c93abe05

SHA-256:
2404320deffb416b39c76105e61af865eea02cc93ed6fee073af01e7d7a029d7

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:
12/25/2024 1:22:48 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Linkular.Installer (M)
15.12.23.0

File size:
448.5 KB (459,240 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
Linkular LLC

Authority:
GoDaddy.com, Inc.

Valid from:
9/21/2015 5:59:38 PM

Valid to:
9/14/2016 10:35:38 PM

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

Issuer:
CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
10550CED0AD83F0A

File PE Metadata
Compilation timestamp:
12/5/2009 2:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:vxZk3sc3Xy9uTk4FF1g38Hx1iCJXOyC1aNJjrlIpGPyv:vxe3N3i9uTk4rH1fiaNhRIpGPyv

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9130

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

http://www.mspowerpack.com/ds/1569/?installer_file_name=JavaUpdate.exe&context=1026df05547c3b1dbee62d64c0e007&dp=972&product_name=JavaUpdate&product_download_url=http://protect-dl.co/pstwrp/.../JavaUpdate.exe

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