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yqzaf9fv.exe

BrowserOptimizer

KEYDOWNLOAD LTD

The file yqzaf9fv.exe by KEYDOWNLOAD has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory.
Publisher:
KeyDownload  (signed by KEYDOWNLOAD LTD)

Product:
BrowserOptimizer

Description:
setup

Version:
1, 0, 0, 1

MD5:
87859dfa173b538f6b18680931ea68d1

SHA-1:
85e2fcf32c92b669f0ccb69b071c533c8f91a53b

SHA-256:
494e10d4f5b81078f3b567db31db91c1418f59780db9ca8d47f6bf9f37e43db8

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:
4/18/2024 3:50:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.KeyDownload.Installer (M)
15.12.18.9

File size:
1.2 MB (1,270,656 bytes)

Product version:
1, 0, 0, 1

Copyright:
KeyDownload Copyright (C) 2013

Original file name:
setup.EXE

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\yqzaf9fv.exe.part

Digital Signature
Signed by:
KEYDOWNLOAD LTD

Authority:
Thawte, Inc.

Valid from:
10/22/2012 7:00:00 PM

Valid to:
10/23/2013 6:59:59 PM

Subject:
CN=KEYDOWNLOAD LTD, O=KEYDOWNLOAD LTD, L=Tel Aviv- Jaffa, S=Israel, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
44DCCD0B7D3CB651EC98DC55DCEEBDA0

File PE Metadata
Compilation timestamp:
8/16/2013 5:39:18 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:JpFVzDZupXVRQoipDSXRyI2RpD8pwpdS9NARlpzv3BBnZo2OSjeZudMRb+:JpFVvZupFGNIv4D84S9NARlBv3BBn+2n

Entry address:
0x281850

Entry point:
60, BE, 00, 00, 55, 00, 8D, BE, 00, 10, EB, 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:
7.8950

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

Code size:
1.2 MB (1,253,376 bytes)

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