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calibre64autoupdater.exe

The executable calibre64autoupdater.exe has been detected as malware by 10 anti-virus 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. While running, it connects to the Internet address download.calibre-ebook.com on port 80 using the HTTP protocol.
MD5:
b307bf50f9107f1f390ebb47ddfc2c20

SHA-1:
e0e3001121bbf94d3532c1320186c6eda08d32dd

SHA-256:
a1a73ee0dc939d680f581230a9db3bd2749935377904426c990ca45a76b36a9e

Scanner detections:
10 / 68

Status:
Malware

Analysis date:
12/26/2024 5:08:04 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.NSIS.Androm.3
22

Arcabit
Trojan.NSIS.Androm.3
1.0.0.576

Bitdefender
Trojan.NSIS.Androm.3
1.0.20.60

Emsisoft Anti-Malware
Trojan.NSIS.Androm
8.17.01.12.09

F-Secure
Trojan.NSIS.Androm.3
11.2017-12-01_5

G Data
Trojan.NSIS.Androm
17.1.25

IKARUS anti.virus
Trojan.Win32.Pasta
t3scan.1.9.5.0

MicroWorld eScan
Trojan.NSIS.Androm.3
18.0.0.36

nProtect
Trojan.NSIS.Androm.3
15.10.07.01

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.4

File size:
61.6 KB (63,076 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:41 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x30CB

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, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
6.9640

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to download.calibre-ebook.com  (88.202.231.80:80)

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