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updatecheck.exe

Coupoon

Part of an Adpeak program that shows ads in the browser without providing information about the ad's origin. Ads are injected as banners or text-links in random web pages. The application updatecheck.exe by Coupoon has been detected as adware by 6 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “UpdateCheck”.
Publisher:
Coupoon  (signed and verified)

MD5:
31c1c7cc1c176ca6231384a33c28f5f7

SHA-1:
761e70f64ae359ac30f4b3698f61b84cca3fb8e6

SHA-256:
ac035b14891cb0f232883a34d8e82af2de191f642fe204fd015f5b8d5b49e3f7

Scanner detections:
6 / 68

Status:
Adware

Explanation:
May modify the web browser's settings including changing the homepage and search provider in addition to delivering ads (by injecting banner and text-links directly in the webpage).

Analysis date:
12/24/2024 2:59:48 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.CrossRider
2015.05.22

AVG
Generic
2016.0.3095

Malwarebytes
PUP.Optional.Coupoon.A
v2015.05.29.01

Reason Heuristics
PUP.AdPeak.Coupoon
15.5.28.21

Sophos
Mal/FakeAV-QN
4.98

Trend Micro House Call
Suspicious_GEN.F47V0424
7.2.149

File size:
51.8 KB (53,040 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\coupoon\updatecheck.exe

Digital Signature
Signed by:
Coupoon

Authority:
GlobalSign nv-sa

Valid from:
11/21/2014 10:35:57 AM

Valid to:
11/22/2015 10:35:57 AM

Subject:
E=support@coupoon.org, CN=Coupoon, O=Coupoon, L=Tallahassee, S=FL, C=US

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

Serial number:
1121400C47EC899C3BA485785E2CAB2D79C3

File PE Metadata
Compilation timestamp:
4/23/2015 2:15:51 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

CTPH (ssdeep):
768:lAcDGRauMSnrk2FC4VkVxaEIQHrmnJoKHKqG/J3amE52OfzhK:O0Gg+wLFHaE3rQZa39OfM

Entry address:
0x5985

Entry point:
E8, CC, 03, 00, 00, E9, 9E, FD, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 08, A2, 40, 00, 89, 0D, 04, A2, 40, 00, 89, 15, 00, A2, 40, 00, 89, 1D, FC, A1, 40, 00, 89, 35, F8, A1, 40, 00, 89, 3D, F4, A1, 40, 00, 66, 8C, 15, 20, A2, 40, 00, 66, 8C, 0D, 14, A2, 40, 00, 66, 8C, 1D, F0, A1, 40, 00, 66, 8C, 05, EC, A1, 40, 00, 66, 8C, 25, E8, A1, 40, 00, 66, 8C, 2D, E4, A1, 40, 00, 9C, 8F, 05, 18, A2, 40, 00, 8B, 45, 00, A3, 0C, A2, 40, 00, 8B, 45, 04, A3, 10, A2, 40, 00, 8D, 45, 08, A3, 1C, A2, 40, 00, 8B...
 
[+]

Entropy:
5.3156

Code size:
24 KB (24,576 bytes)

Service
Display name:
UpdateCheck

Type:
Win32OwnProcess


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to ec2-54-237-124-140.compute-1.amazonaws.com  (54.237.124.140:80)

TCP (HTTP):
Connects to ec2-54-158-108-201.compute-1.amazonaws.com  (54.158.108.201:80)

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