trz1721.tmp

Discovery App

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file trz1721.tmp by Discovery App has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Discovery App  (signed and verified)

Version:
1.0.5894.16885

MD5:
1dde42e1acfee68654fe1cedfd22a8a9

SHA-1:
60248bd38f296ddbe67ab459551ad5767b84d870

SHA-256:
09c27638163f901f7e9fa59cefb3c93661c4315cea6c189ca0bfbd0802f26daf

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
8/14/2020 6:56:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.13

File size:
522.8 KB (535,312 bytes)

Product version:
1.0.5894.16885

Language:
English (United States)

Common path:
C:\ProgramData\7d981f9d-43ff-4844-a2f8-499114283074\plugins\7\trz1721.tmp

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/25/2015 8:00:00 AM

Valid to:
3/25/2016 7:59:59 AM

Subject:
CN=Discovery App, O=Discovery App, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
510E3F5ACE52C22C76DC87DB7D1FCCE8

File PE Metadata
Compilation timestamp:
2/21/2016 1:23:03 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x203395D

Entry point:
E8, A2, F0, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 7F, 0F, B6, 44, 24, 08, 0F, BA, 25, F0, 61, 40, 06, 01, 73, 0D, 8B, 4C, 24, 0C, 57, 8B, 7C, 24, 08, F3, AA, EB, 5D, 8B, 54, 24, 0C, 81, FA, 80, 00, 00, 00, 7C, 0E, 0F, BA, 25, 70, 07, 40, 06, 01, 0F, 82, D8, F1, 00, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA...
 
[+]

Entropy:
6.6747

Code size:
411 KB (420,864 bytes)

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