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db661.exe

Ad First Catch

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 db661.exe by Ad First Catch has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Ad First Catch  (signed and verified)

MD5:
f8b9189178caff2dd8303c4341ffb0e4

SHA-1:
fc7ff9ba34c344908c0816917d4d7b5da6e163a4

SHA-256:
9254a5e4b3ed58a6f21f83c4f8c028695bad412bc779ea0ee93ed23aa66c9d9f

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:
4/22/2025 12:27:52 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.AdPeak (M)
17.1.2.5

File size:
1.1 MB (1,172,384 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\windows\temp\db661.exe

Digital Signature
Signed by:
Ad First Catch

Authority:
Ad First Catch

Valid from:
4/14/2015 10:46:48 PM

Valid to:
4/13/2016 10:46:48 PM

Subject:
CN=adfirst.nl, OU=Ads, O=Ad First Catch, S=Holland, C=NL

Issuer:
E=support@firstcatchads.nl, O=Ad First Catch, L=Amsterdam, S=Holland, C=NL

Serial number:
00E592A6D69AFA75B0

File PE Metadata
Compilation timestamp:
4/15/2015 3:45:14 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x350CA0

Entry point:
60, BE, 00, 40, 63, 00, 8D, BE, 00, D0, DC, FF, 57, EB, 0B, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89, C5, EB, 0B, 01, DB, 75, 07, 8B...
 
[+]

Entropy:
7.9221

Packer / compiler:
UPX v0.89.6 - v1.02 / v1.05 -v1.24

Code size:
1.1 MB (1,167,360 bytes)

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