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pdf_reader.exe

The executable pdf_reader.exe has been detected as malware by 1 anti-virus scanner. 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. The file has been seen being downloaded from www.searchapps.me.
MD5:
e25711776412a032b5b9f05269eadc77

SHA-1:
fc50f4cc912c571cb17299a17b5f74d0d78bdce9

SHA-256:
82ae7b5471ab76ae950c57b1d56b7945bddad54a675d1a9243ae9a1918185724

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
12/26/2024 12:07:51 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
(M)
16.6.23.15

File size:
400.8 KB (410,438 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\pdf_reader.exe

File PE Metadata
Compilation timestamp:
12/5/2009 3:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:ws57DHo/i1WNY/ydsvT4lUL+czUM1zPAozwhPVvo+izHUY566CWhJMLGoUc1um+a:+/i1WNY/us3+JM1so8hPAH766CW8Ke1l

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.8986

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://www.searchapps.me/download/.../PDF_Reader.exe

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