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portmon.exe

5023_cmi_mystartsearch

Banyan Tree Technology Limited

The file portmon.exe by Banyan Tree Technology Limited has been detected as adware by 20 anti-malware scanners. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from 113.171.224.203 and multiple other hosts.
Publisher:
Portmon/EE  (signed by Banyan Tree Technology Limited)

Product:
5023_cmi_mystartsearch

Description:
Portmon/EE

Version:
7.0.1.13

MD5:
fecbe51a90c10d3dd9bc199f75778d34

SHA-1:
9e17982aa46d2cc15107ca1d80b88b20e6328164

SHA-256:
1fd258e7828e19d4dff15c8b052ba4faedb48da9dde941b760898c340ffd0fd2

Scanner detections:
20 / 68

Status:
Adware

Explanation:
Software bundler and update mechanism that will attempt to install adware offers.

Analysis date:
5/7/2024 1:44:12 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Elex.M
456

Agnitum Outpost
Riskware.Agent
7.1.1

Arcabit
Application.Elex.M
1.0.0.590

Baidu Antivirus
Trojan.Win32.StartPage
4.0.3.15116

Bitdefender
Application.Elex.M
1.0.20.1550

Bkav FE
W32.HfsAdware
1.3.0.7383

Dr.Web
Adware.Mutabaha.255
9.0.1.0310

ESET NOD32
Win32/ELEX.EC potentially unwanted (variant)
9.12524

F-Secure
Application.Elex.M
11.2015-06-11_6

G Data
Application.Elex
15.11.25

K7 AntiVirus
Adware
13.212.17767

Malwarebytes
PUP.Optional.MyStartSearch.ShrtCln
v2015.11.06.07

MicroWorld eScan
Application.Elex.M
16.0.0.930

NANO AntiVirus
Riskware.Win32.Mutabaha.dxudgr
0.30.26.4437

Panda Antivirus
Trj/Genetic.gen
15.11.06.07

Quick Heal
PUA.Banyantree.Gen
11.15.14.00

Reason Heuristics
PUP.BanyanTreeTechnology (M)
15.11.6.7

SUPERAntiSpyware
PUP.Elex/Variant
9524

VIPRE Antivirus
Elex Installer
45040

Zillya! Antivirus
Downloader.ELEX.Win32.1
2.0.0.2496

File size:
310.2 KB (317,656 bytes)

Product version:
7.0.1.13

Copyright:
Portmon/EE

Original file name:
portmon.exe

Language:
English (United Kingdom)

Common path:
C:\users\{user}\appdata\local\temp\nsb45af.tmp

Digital Signature
Signed by:
Banyan Tree Technology Limited

Authority:
GlobalSign nv-sa

Valid from:
11/5/2015 3:59:33 PM

Valid to:
11/25/2016 11:10:32 AM

Subject:
CN=Banyan Tree Technology Limited, O=Banyan Tree Technology Limited, L=HongKong, S=HongKong, C=HK

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

Serial number:
1121A84F087742227CF7C530AB0F07FFC7DD

File PE Metadata
Compilation timestamp:
9/9/2015 11:52:18 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:akmdA5Mu/y0+DC9yHZLC3Nd+WJD19LSpUXv/x6Gaw2xTV+1WrrglVZxraAvDx6SO:aPdsMWB+eWqNBJSS3z92xTV4VfNN6H

Entry address:
0x17AC6

Entry point:
E8, 70, BE, 00, 00, E9, 7F, FE, FF, FF, 57, 56, 8B, 74, 24, 10, 8B, 4C, 24, 14, 8B, 7C, 24, 0C, 8B, C1, 8B, D1, 03, C6, 3B, FE, 76, 08, 3B, F8, 0F, 82, 68, 03, 00, 00, 0F, BA, 25, 4C, 3D, 44, 00, 01, 73, 07, F3, A4, E9, 17, 03, 00, 00, 81, F9, 80, 00, 00, 00, 0F, 82, CE, 01, 00, 00, 8B, C7, 33, C6, A9, 0F, 00, 00, 00, 75, 0E, 0F, BA, 25, 50, E8, 43, 00, 01, 0F, 82, DA, 04, 00, 00, 0F, BA, 25, 4C, 3D, 44, 00, 00, 0F, 83, A7, 01, 00, 00, F7, C7, 03, 00, 00, 00, 0F, 85, B8, 01, 00, 00, F7, C6, 03, 00, 00, 00...
 
[+]

Entropy:
5.8657

Code size:
191.5 KB (196,096 bytes)

The file portmon.exe has been seen being distributed by the following 2 URLs.

http://113.171.224.203/.../cmi_mystartsearch.exe

http://d2drfrdurj6mvo.cloudfront.net/.../cmi_mystartsearch.exe

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