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nsinstall.exe

Gemius S.A.

The application nsinstall.exe by Gemius S.A has been detected as a potentially unwanted program 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 Self-extracting archive installer. The file has been seen being downloaded from pl.panel.gemius.hu.
Publisher:
Gemius S.A.  (signed and verified)

MD5:
7a2a612dea767734478d526670c72de1

SHA-1:
ffaa77456411bc0a5d851a98dfdeb6b7b9b304ba

SHA-256:
f1bd59d02cb178ebb9c8cbb7cc2eb28f7a597650aafcf01523569a42857abecd

Scanner detections:
1 / 68

Status:
Potentially unwanted

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:
4/26/2024 11:54:10 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.GemiusSA.Installer (M)
16.5.3.17

File size:
2.6 MB (2,690,728 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Self-extracting archive

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

Digital Signature
Signed by:
Gemius S.A.

Authority:
thawte, Inc.

Valid from:
2/8/2016 1:00:00 AM

Valid to:
6/2/2016 1:59:59 AM

Subject:
CN=Gemius S.A., O=Gemius S.A., L=Warszawa, S=mazowieckie, C=PL

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
6A007947EE0CB7B042D84EAB4DB205D1

File PE Metadata
Compilation timestamp:
2/15/2015 9:00:31 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
49152:JFL8a2BJ3w9zrQ9yorGzTYfBE3+oLBdDpr98Gz0f/dBgg3nxH:JFmBJMeyou8fbobDpX0tBgg3xH

Entry address:
0x1D7CB

Entry point:
E8, 85, 63, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 56, 8D, 45, 08, 50, 8B, F1, E8, 82, FC, FF, FF, C7, 06, 20, B2, 42, 00, 8B, C6, 5E, 5D, C2, 04, 00, C7, 01, 20, B2, 42, 00, E9, 37, FD, FF, FF, 8B, FF, 55, 8B, EC, 56, 8B, F1, C7, 06, 20, B2, 42, 00, E8, 24, FD, FF, FF, F6, 45, 08, 01, 74, 07, 56, E8, 52, CA, FF, FF, 59, 8B, C6, 5E, 5D, C2, 04, 00, 8B, FF, 55, 8B, EC, 56, 57, 8B, 7D, 08, 8B, 47, 04, 85, C0, 74, 47, 8D, 50, 08, 80, 3A, 00, 74, 3F, 8B, 75, 0C, 8B, 4E, 04, 3B, C1, 74, 14, 83, C1, 08...
 
[+]

Code size:
162 KB (165,888 bytes)

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

http://pl.panel.gemius.hu/usr/.../?id=1111681&mt=109a1c202de12376e8c777f400bc76ce&lang=hu&market=HU

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