nsc1c48.tmp

Edu App

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file nsc1c48.tmp by Edu App has been detected as adware by 16 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. It is also typically executed from the user's temporary directory.
Publisher:
Edu App  (signed and verified)

MD5:
090d7a3ba3cddc78fc0fa79783c09677

SHA-1:
8bfdb59ef8c5b37d98164cdc421e3ed52a9b73b7

SHA-256:
1add79b3b48e194c911c1ee0f3706707ef5b60411e339ccdb3a4365cafedd85b

Scanner detections:
16 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/26/2024 2:23:57 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.05.29

Avira AntiVirus
ADWARE/BrowseFox.Gen
8.3.1.6

AVG
Could be an adware BrowseFox
2014.0.4311

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15528

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1808
9.0.1.05190

ESET NOD32
Win32/BrowseFox.AV potentially unwanted application
7.0.302.0

K7 AntiVirus
Unwanted-Program
13.204.16065

Kaspersky
not-a-virus:HEUR:AdWare.NSIS.Zaitu
15.0.0.543

Malwarebytes
PUP.Optional.BrowseFox
v2015.05.28.06

NANO AntiVirus
Trojan.Win32.Siggen6.droatj
0.30.24.1636

Qihoo 360 Security
HEUR/QVM42.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Yontoo.Installer
15.5.28.14

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15526

VIPRE Antivirus
Threat.4150696
40552

File size:
454.3 KB (465,160 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\nsc1c48.tmp

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/18/2015 8:00:00 AM

Valid to:
3/18/2016 7:59:59 AM

Subject:
CN=Edu App, O=Edu App, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
2A116E4DDAE4EB2C28F70FBC481D3E94

File PE Metadata
Compilation timestamp:
12/6/2009 6:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:zSnoVLb8BmQ1s15Ap/G/8g3D0Fw/tN8dkmLtpHHHrh7G:zS6v06j8gz0FmcLbH1G

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:
7.9730

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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