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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. This is a setup and installation application and has been known to bundle potentially unwanted software. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from pl.panel.gemius.dk.
Publisher:
Gemius S.A.  (signed and verified)

MD5:
1c9f9b20045b5070eea5282a7204e609

SHA-1:
95c3ac8b4cacc8807c698a9206ebf827359383ff

SHA-256:
22cc9de60f94638637541e56bbad0482d9688675b9f211c8333d2573401b0d0f

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:
5/19/2024 10:58:53 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.GemiusSA.Installer (M)
16.5.18.1

File size:
2.3 MB (2,458,360 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Gemius S.A.

Authority:
Thawte, Inc.

Valid from:
4/3/2014 2:00:00 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 Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
411290C3B6985D1DD4202A51727A340B

File PE Metadata
Compilation timestamp:
1/14/2003 9:27:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
5.0

CTPH (ssdeep):
49152:yT/jRmFgWFq9Yd2c3RETEKpaAdmsAI44DSJHlimn+pBLFZK/0Uc3J:yh7217Admo+v+s0UcZ

Entry address:
0x1F150

Entry point:
60, BE, 00, 50, 41, 00, 8D, BE, 00, C0, FE, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, EF, 75, 09, 8B, 1E, 83, EE, FC, 11, DB, 73, E4, 31, C9, 83, E8, 03, 72, 0D, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 74, 89, C5, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 75, 20, 41, 01, DB, 75...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
44 KB (45,056 bytes)

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

http://pl.panel.gemius.dk/usr/.../?id=1526302&mt=5a0dfc4c8f40e682b89c197537268d62&lang=da&market=DK

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