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pagerage.exe

KBM2 Installer

sterkly LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application pagerage.exe by sterkly has been detected as adware by 9 anti-malware scanners. The file has been seen being downloaded from api.kbm2.com.
Publisher:
sterkly LLC  (signed and verified)

Product:
KBM2 Installer

Version:
1.5.0.0

MD5:
5b90eba5feadde49c855ffa7202f224f

SHA-1:
ff7a278804b1e28dc695f43638ff1bed4ce7de27

SHA-256:
99d861c09b9fecf9dce7478511cde6aa702de917b0d7bbc6396d7ea6d46ce668

Scanner detections:
9 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/24/2024 12:16:14 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
Adware/Agent.543888
7.11.197.232

avast!
Win32:Adware-AJR [PUP]
2014.9-151014

Dr.Web
Adware.Plugin.13
9.0.1.0287

ESET NOD32
Win32/KBM.A potentially unwanted application
9.7.0.302.0

F-Secure
Gen:Variant.Graftor.169998
11.2015-14-10_4

IKARUS anti.virus
PUA.KBM
t3scan.1.8.5.0

NANO AntiVirus
Riskware.Win32.Plugin.deanuz
0.28.2.62671

Reason Heuristics
PUP.Yontoo.sterkly.Installer (M)
15.10.14.7

VIPRE Antivirus
Threat.4782986
35418

File size:
527.1 KB (539,768 bytes)

Product version:
1.5.0.0

Copyright:
(c) Sterkly LLC. All rights reserved.

Original file name:
KBM2.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\pagerage.exe

Digital Signature
Signed by:
sterkly LLC

Authority:
VeriSign, Inc.

Valid from:
1/25/2012 7:00:00 PM

Valid to:
1/25/2013 6:59:59 PM

Subject:
CN=sterkly LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=sterkly LLC, L=Carlsbad, 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:
136DB6717AA1462B8176971FE58FEBD6

File PE Metadata
Compilation timestamp:
3/6/2012 3:14:54 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:f0Owuh70ncgitx8vZyo0k37n+Sth6PpBbPEXBZCuGxw3tLzrrQFC2:f0Ow5nxu82kaSth6PPEXBsQPrrQF1

Entry address:
0x38A52

Entry point:
E8, AC, 6C, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, D0, DB, 46, 00, 75, 02, F3, C3, E9, 33, 6D, 00, 00, 8B, FF, 55, 8B, EC, 56, 8B, 75, 14, 85, F6, 75, 04, 33, C0, EB, 61, 83, 7D, 08, 00, 75, 13, E8, 77, 33, 00, 00, 6A, 16, 5E, 89, 30, E8, 0A, 73, 00, 00, 8B, C6, EB, 48, 83, 7D, 10, 00, 74, 16, 39, 75, 0C, 72, 11, 56, FF, 75, 10, FF, 75, 08, E8, 04, 6E, 00, 00, 83, C4, 0C, EB, C7, FF, 75, 0C, 6A, 00, FF, 75, 08, E8, 52, 2F, 00, 00, 83, C4, 0C, 83, 7D, 10, 00, 74, BB, 39, 75, 0C, 73, 0E, E8, 2D, 33, 00, 00, 6A...
 
[+]

Entropy:
6.2473

Code size:
335 KB (343,040 bytes)

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

http://api.kbm2.com/DownloadLauncher.ashx?id=1

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