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nsz73cf.tmp

Hatchiho

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file nsz73cf.tmp by Hatchiho has been detected as adware by 24 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:
Hatchiho  (signed and verified)

MD5:
43645bd5931f9e4eb3223ba88f7cd9d6

SHA-1:
6059fe95bd33ab49a3379fc1fd21f71896aa25cb

SHA-256:
8798902f8e507156d67cf8f6f247781d4cb75a8269682f81368ed3f911d82e79

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
5/2/2024 1:26:14 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.SwiftBrowse.1
653

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.04.23

Avira AntiVirus
ADWARE/BrowseFox.Gen
3.6.1.96

AVG
Adware AdPlugin
2016.0.3131

Bitdefender
Gen:Variant.Adware.SwiftBrowse.1
1.0.20.560

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Agent-34627
0.98/20361

Dr.Web
infected with Trojan.Siggen6.33539
9.0.1.0112

Emsisoft Anti-Malware
Gen:Variant.Adware.SwiftBrowse
8.15.04.22.06

ESET NOD32
Win32/BrowseFox.AV potentially unwanted application
7.0.302.0

F-Secure
Gen:Variant.Adware.SwiftBrowse
11.2015-22-04_4

G Data
Gen:Variant.Adware.SwiftBrowse
15.4.25

herdProtect (fuzzy)
variant of nsda66f.tmp (Adware)
2015.7.24.0

Kaspersky
not-a-virus:HEUR:AdWare.Win32.Kranet
14.0.0.2151

McAfee
Trojan.Artemis!D7E6E25BDBC0
16.8.708.2

MicroWorld eScan
Gen:Variant.Adware.SwiftBrowse.1
16.0.0.336

NANO AntiVirus
Trojan.Nsis.BrowseFox.dnxihk
0.30.16.1110

Norman
Gen:Variant.Adware.SwiftBrowse.1
11.20150422

Reason Heuristics
PUP.Yontoo.Installer
15.4.22.18

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15420

Sophos
Browse Fox
4.98

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

File size:
511 KB (523,240 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\nsz73cf.tmp

Digital Signature
Signed by:
Hatchiho

Authority:
VeriSign, Inc.

Valid from:
11/3/2014 4:00:00 PM

Valid to:
1/3/2016 3:59:59 PM

Subject:
CN=Hatchiho, O=Hatchiho, 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:
18C541759E913EC1CBDA43C13830E0B3

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):
12288:5/Vm6Dl1s15AjYAuOHh//G/8/3D0Fw/tN8dkmLtpHHHrh7F:5trZ64YAuSu8/z0FmcLbH1F

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:
7.9775

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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