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compatibilitycheck.exe

Ad Support

The application compatibilitycheck.exe by Ad Support has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address edge-star-shv-01-iad3.facebook.com on port 443.
Publisher:
Ad Support  (signed and verified)

MD5:
335fc590d058c1e806d195c6d55dd69b

SHA-1:
0f2daffcdb1f3fd960fa1b8e0bf22e923cee66db

SHA-256:
885d8c150cd23d3b8bc79138d9b332f89c185b6eeed5a6cdf2e13a20cc22bb2e

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
4/23/2024 1:03:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.AdSupport (M)
15.8.9.0

File size:
48.9 MB (51,306,152 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\roaming\compatibility verifier\compatibilitycheck.exe

Digital Signature
Signed by:
Ad Support

Authority:
Ad Support

Valid from:
10/16/2014 2:22:36 AM

Valid to:
10/16/2015 2:22:36 AM

Subject:
CN=Ad Support, O=Ad Support, S=London, C=GB

Issuer:
CN=AdSupport, O=Ad Support, S=London, C=GB

Serial number:
00E592A6D69AFA75AF

File PE Metadata
Compilation timestamp:
2/1/2015 4:39:03 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
786432:rqQD4RXB7qcu28OwcgpzO79w7YMOD9qU28/Si+:rpDM7qp2nwcgpzO7+9G9+8/m

Entry address:
0x22B4E99

Entry point:
E8, C2, 71, 01, 00, E9, 39, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 44, 24, 08, 8B, 4C, 24, 10, 0B, C8, 8B, 4C, 24, 0C, 75, 09, 8B, 44, 24, 04, F7, E1, C2, 10, 00, 53, F7, E1, 8B, D8, 8B, 44, 24, 08, F7, 64, 24, 14, 03, D8, 8B, 44, 24, 08, F7, E1, 03, D3, 5B, C2, 10, 00, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 83, EC, 08, 0F, AE, 5C, 24, 04, 8B, 44, 24, 04, 25, 80, 7F, 00, 00, 3D, 80, 1F, 00, 00, 0F, 85, 59, 02, 00, 00, D9, 3C, 24, 66, 8B, 04, 24, 66, 83, E0, 7F, 66, 83...
 
[+]

Entropy:
6.7641

Code size:
42 MB (44,012,544 bytes)

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

TCP (HTTP):
Connects to yx-in-f155.1e100.net  (64.233.177.155:80)

TCP (HTTP SSL):
Connects to yx-in-f148.1e100.net  (64.233.177.148:443)

TCP (HTTP):
Connects to yv-in-f157.1e100.net  (74.125.21.157:80)

TCP (HTTP):
Connects to yv-in-f156.1e100.net  (74.125.21.156:80)

TCP (HTTP):
Connects to yv-in-f154.1e100.net  (74.125.21.154:80)

TCP (HTTP):
Connects to yv-in-f149.1e100.net  (74.125.21.149:80)

TCP (HTTP):
Connects to yv-in-f138.1e100.net  (74.125.21.138:80)

TCP (HTTP SSL):
Connects to yk-in-f157.1e100.net  (74.125.196.157:443)

TCP (HTTP):
Connects to yk-in-f156.1e100.net  (74.125.196.156:80)

TCP (HTTP):
Connects to yk-in-f154.1e100.net  (74.125.196.154:80)

TCP (HTTP SSL):
Connects to yk-in-f148.1e100.net  (74.125.196.148:443)

TCP (HTTP):
Connects to yb-in-f149.1e100.net  (64.233.185.149:80)

TCP (HTTP SSL):
Connects to yb-in-f148.1e100.net  (64.233.185.148:443)

TCP (HTTP):
Connects to server-54-230-204-245.atl50.r.cloudfront.net  (54.230.204.245:80)

TCP (HTTP SSL):
Connects to reserved-98.euroclick.com  (193.149.47.98:443)

TCP (HTTP):
Connects to m-prd-umpxl-shared-mr1-blue-a.evip.aol.com  (152.163.50.3:80)

TCP (HTTP SSL):
Connects to frontier.com  (50.121.73.21:443)

TCP (HTTP SSL):
Connects to edge-star-shv-01-iad3.facebook.com  (31.13.69.197:443)

TCP (HTTP SSL):
Connects to ec2-54-243-53-214.compute-1.amazonaws.com  (54.243.53.214:443)

TCP (HTTP):
Connects to ec2-54-243-120-35.compute-1.amazonaws.com  (54.243.120.35:80)

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