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7_zip.exe

DownloadShield

The application 7_zip.exe by DownloadShield has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.downloadtastic.com.
Publisher:
DownloadShield  (signed and verified)

MD5:
82e65c0cf7be24c02c6d91b98d02ea5a

SHA-1:
cd8e87531c3fa0abcb01e515ab5a12a31bde36fc

SHA-256:
1cdf16118ef342a144b0a3648e330a3b0b44873de91c7a64a3d840966e340897

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:
12/27/2024 4:31:58 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.DownloadShield.Installer (M)
16.2.23.8

File size:
247.4 KB (253,344 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\7_zip.exe

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
12/21/2015 5:00:00 PM

Valid to:
3/21/2019 5:59:59 PM

Subject:
CN=DownloadShield, O=DownloadShield, L=San Jose, 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:
78070F8D972292519C0C15749BCB3808

File PE Metadata
Compilation timestamp:
8/28/2014 10:10:25 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:o6AUf9vS+KWaaR3fsFiv6BtgZHbGYXwj5484rLu:rfw+KUR3fssG2ZyYXU4f

Entry address:
0x31E8

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, E0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 23, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, DB, 73, 40, 00, FF, 15, 58, 71, 40, 00, 68, D0, 73, 40, 00, 68, C0, 33, 42, 00, E8, 15, 24, 00, 00, FF, 15, AC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 03, 24, 00, 00...
 
[+]

Entropy:
7.7452

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file 7_zip.exe has been seen being distributed by the following URL.

http://www.downloadtastic.com/.../download

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