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unbound_setup_1.4.22.exe

Unbound

NLnet Labs

The executable unbound_setup_1.4.22.exe, “(un)install the unbound DNS resolver” has been detected as malware by 2 anti-virus scanners. The program is a setup application that uses the Nullsoft 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 unbound.net and multiple other hosts.
Publisher:
NLnet Labs

Product:
Unbound

Description:
(un)install the unbound DNS resolver

Version:
1.4.22.0

MD5:
feea155cff2b74e9d672380a0702670c

SHA-1:
90f4f404aec59dbe2aa4f5a500e5bc044d641ff9

SHA-256:
cea4deb6b2dbdf79d6169ab011f43c419fbf7c8a36fd6df4809e3a34e86bbb9c

Scanner detections:
2 / 68

Status:
Malware

Explanation:
This is part of the Crossrider Internet browser extension framework which may modify the user's web browser settings including changing the home and search pages.

Note:
Crossrider is the owner of a platform that enables the creation of cross-browser extensions by developers but is not the owner of this detected application.

Analysis date:
4/25/2024 6:15:00 PM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
HW32.CDB
1.3.0.4959

Reason Heuristics
Threat.Win.Reputation.IMP
16.11.30.1

File size:
1.8 MB (1,916,063 bytes)

Product version:
1.4.22.0

Copyright:
Copyright 2009, NLnet Labs

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Install System

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\unbound_setup_1.4.22.exe

File PE Metadata
Compilation timestamp:
7/20/2012 7:23:33 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.22

CTPH (ssdeep):
49152:D1clExTo2u4s0xGzKPa47/pmb33AZTVYM03NwAyD:mX0xIKPa1333MSNPo

Entry address:
0x43A7

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, 93, 42, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, 94, 42, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, 94, 42, 00, 56, C7, 04, 24, 08, 00, 00, 00, A3, 40, 7B, 42, 00, E8, 6B, 3C, 00, 00, A3, 9C, 7B, 42, 00, 8D, 85, 88, FE, FF, FF, 57, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 01, B3, 40, 00, FF, 15, AC, 94, 42, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Entropy:
7.9835  (probably packed)

Code size:
34.5 KB (35,328 bytes)

The file unbound_setup_1.4.22.exe has been seen being distributed by the following 2 URLs.

https://unbound.net/.../unbound_setup_1.4.22.exe

http://unbound.net/.../unbound_setup_1.4.22.exe

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