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download7843.exe

The application download7843.exe has been detected as a potentially unwanted program by 12 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. The file has been seen being downloaded from letshare.us.
MD5:
3260c18882de639a44b654478a6ea5b2

SHA-1:
9df9f68f501558327b03994fdc756bb27295de0d

SHA-256:
74945ee7623414127bd5a72c7205d3576b3bcc0a62ce8d828923ef9401b66c2e

Scanner detections:
12 / 68

Status:
Potentially unwanted

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
12/25/2024 12:43:49 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Malware-gen
2014.9-160304

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1634

ESET NOD32
Win32/ActiveMonetizer
10.10774

G Data
Win32.Trojan.Agent.KT2LQ3
16.3.24

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.568

McAfee
Artemis!3260C18882DE
5600.6471

NANO AntiVirus
Riskware.Nsis.Yontoo.cwhuxq
0.28.6.63474

Panda Antivirus
Trj/Chgt.A
16.03.04.10

Sophos
Generic PUA JN
4.98

Trend Micro House Call
Suspicious_GEN.F47V1109
7.2.64

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
35096

File size:
206.3 KB (211,267 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\download7843.exe

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:pFJ0EGpl0FNATUU4NrAPoT2b+Ozi7Mknq7o:RFNAj20oT++OzUDqM

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 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, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file download7843.exe has been seen being distributed by the following URL.

http://letshare.us/download.php?aff=9544&name=gotclip&file=download7843

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