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nsfa87b.tmp

Mari Mara

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The file nsfa87b.tmp by Mari Mara has been detected as adware by 19 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. According to AVG, this software downloads additional adware offers during setup. It is also typically executed from the user's temporary directory.
Publisher:
Mari Mara  (signed and verified)

MD5:
f9c3b23537ff39b9698531b7bfbc60a1

SHA-1:
ae6b4e58830f0c26e30dbc1b3098ca8e41f44419

SHA-256:
64c69ecb2939df246a1756397ed4895640f2e280eba1ca0956946ffa5758f61f

Scanner detections:
19 / 68

Status:
Adware

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
8/6/2025 6:07:10 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
MemScan:Application.Bundler.Outbrowse.Q
796

AhnLab V3 Security
PUP/Win32.OutBrowse
2014.12.01

Avira AntiVirus
APPL/Downloader.Gen
7.11.189.158

AVG
Potentially harmful program Downloader.CES
2014.0.4189

Bitdefender
MemScan:Application.Bundler.Outbrowse.Q
1.0.20.1675

Dr.Web
Trojan.OutBrowse.14
9.0.1.05190

Emsisoft Anti-Malware
MemScan:Application.Bundler.Outbrowse.Q
9.0.0.4570

ESET NOD32
Win32/OutBrowse.BG potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
12/1/2014

F-Secure
MemScan:Application.Bundler.Outbrowse
11.2014-01-12_2

G Data
MemScan:Application.Bundler.Outbrowse
14.12.24

IKARUS anti.virus
PUA.OutBrowse
t3scan.1.8.3.0

K7 AntiVirus
Unwanted-Program
13.186.14174

Malwarebytes
PUP.Optional.Maru
v2014.12.01.12

McAfee
Adware-OutBrowse.c
5600.6930

MicroWorld eScan
MemScan:Application.Bundler.Outbrowse.Q
15.0.0.1005

Reason Heuristics
PUP.MariMara.K
14.12.1.0

Trend Micro House Call
Suspici.173023CD
7.2.335

VIPRE Antivirus
Threat.4150696
35224

File size:
572 KB (585,768 bytes)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nsfa87b.tmp

Digital Signature
Signed by:
Mari Mara

Authority:
GlobalSign nv-sa

Valid from:
11/11/2014 3:10:16 AM

Valid to:
11/12/2015 3:10:16 AM

Subject:
CN=Mari Mara, O=Mari Mara, L=Dublin, C=IE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112167C220B9C5568C1F2BDF4D04BEE1E24C

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:+5NoAgl/ehsHDnnoQyEnTKBvalmj39ctVR+X4:+O/jyGT0ljNqVB

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:
7.9772

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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