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starpdf_home.exe

EbizNetWorks

The application starpdf_home.exe by EbizNetWorks 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 down.startools.co.kr.
Publisher:
EbizNetWorks  (signed and verified)

MD5:
cd4bcab8d7706c10ecdb5af469d9fa05

SHA-1:
945f2a8c7ecd4550fbd31b3b2df0c49014913ff6

SHA-256:
081020c71aafa1959f169f7d4911d5fa4ec5875b928e0c8d95ef33ba9b4d85c4

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:
4/30/2024 8:06:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.12.3.19

File size:
9.6 MB (10,026,216 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
EbizNetWorks

Authority:
Symantec Corporation

Valid from:
4/28/2016 8:00:00 AM

Valid to:
1/23/2018 7:59:59 AM

Subject:
CN=EbizNetWorks, O=EbizNetWorks, L=Gangnam-gu, S=Seoul, C=KR

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
6EAD56FB10FC05615CA954D77165999F

File PE Metadata
Compilation timestamp:
12/6/2009 6:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
196608:eDXcbtRc5C4VRsSt9hU56v5scsG00gD7K15NRejWiwNX9VnUW+wl:erytRkgSRU5wsegD7K15NRe5wNX7nGwl

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9982

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://down.startools.co.kr/starpdf/app/.../starpdf_home.exe

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