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factfire.dll

Fact Fire

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module factfire.dll by Fact Fire has been detected as adware by 32 anti-malware scanners. 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. The file has been seen being downloaded from install-cdn.firemyfacts.com.
Publisher:
Fact Fire  (signed and verified)

Product:
Fact Fire

Version:
1.0.0.7

MD5:
d4faf64526181b76806c008c815fd594

SHA-1:
79576322ae0bb6ac642a487ea9f4a9ed2f89fadf

SHA-256:
d06ea3fb54ae26826a050dc0f80725f2e50989d004a96f4d12f06891402628b7

Scanner detections:
32 / 68

Status:
Adware

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

Analysis date:
12/2/2024 4:05:00 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.BS
548

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.05.01

avast!
Win32:BrowseFox-HY [PUP]
2014.9-150806

AVG
AdPlugin
2016.0.3026

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1586

Bitdefender
Adware.BrowseFox.BS
1.0.20.1090

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
ApplicUnwnt
21953

Dr.Web
Trojan.Yontoo.1734
9.0.1.0218

Emsisoft Anti-Malware
Adware.BrowseFox.BS
8.15.08.06.06

ESET NOD32
Win32/BrowseFox.AE potentially unwanted (variant)
9.11560

Fortinet FortiGate
Riskware/BrowseFox
8/6/2015

F-Prot
W32/S-f64f6ec1
v6.4.7.1.166

F-Secure
Adware.BrowseFox.BS
11.2015-06-08_5

G Data
Adware.BrowseFox.BS
15.8.25

herdProtect (fuzzy)
variant of factfirebho.dll (Adware)
2015.9.12.21

IKARUS anti.virus
PUA.BrowseFox
t3scan.1.8.9.0

K7 AntiVirus
Trojan
13.187.14319

Malwarebytes
PUP.Optional.FactFire.A
v2015.09.12.09

McAfee
Artemis!000AC3ADEF06
5600.6682

MicroWorld eScan
Adware.BrowseFox.BS
16.0.0.654

NANO AntiVirus
Trojan.Win32.Yontoo.dnkubo
0.30.24.1357

nProtect
Adware.BrowseFox.BS
15.03.20.01

Quick Heal
PUA.Factfire.Gen
8.15.14.00

Reason Heuristics
PUP.Yontoo.FactFire (M)
15.8.6.6

Rising Antivirus
PE:Adware.BrowseFox!6.1D8B
23.00.65.15804

Sophos
Browse Fox
4.98

Trend Micro House Call
TROJ_GEN.R02KC0ECK15
7.2.218

Trend Micro
TROJ_GEN.R0C2C0ECK15
10.465.06

Vba32 AntiVirus
AdWare.MSIL.Agent
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
39840

File size:
262.7 KB (269,040 bytes)

Product version:
1.0.0.7

Copyright:
(c) Fact Fire. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\factfire.dll

Digital Signature
Signed by:
Fact Fire

Authority:
VeriSign, Inc.

Valid from:
11/19/2014 7:00:00 PM

Valid to:
11/20/2015 6:59:59 PM

Subject:
CN=Fact Fire, O=Fact Fire, L=Santa Monica, 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:
5B70F89CFCCA24F1F741F575A33A7EDD

File PE Metadata
Compilation timestamp:
3/9/2015 8:36:11 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:o2CYUg9J7yX8LVxQbqHVOhB+PiG63Qv+MEBT5mZKT5RebOicEO:o2CYUG+sLVW4VOD+3EBtmZOuOxN

Entry address:
0xF515

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, EA, 7E, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, B8, 21, 03, 10, E8, 4C, 02, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 0C, 77, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, C4, 93, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.0712

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

The file factfire.dll has been seen being distributed by the following URL.

http://install-cdn.firemyfacts.com/bed?r=2015031002&bet=3

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