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filedownloaded20successfully_downloader-nbdtnnofa.exe

The application filedownloaded20successfully_downloader-nbdtnnofa.exe has been detected as a potentially unwanted program 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 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 sub.rhionx.info.
Version:
1.0.0.1

MD5:
99a909c9a6d5978d31a03fd416af3e83

SHA-1:
2f3d953ace5080a0da92449d03174f77477885e6

SHA-256:
865bd74a19ee643aabe13208868f748b6837b85c6cf08dca5dca94b9a84d00c8

Scanner detections:
1 / 68

Status:
Potentially unwanted

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:
11/4/2024 5:11:28 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Somoto (M)
16.7.23.16

File size:
401.7 KB (411,379 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Install System

Common path:
C:\users\{user}\downloads\filedownloaded20successfully_downloader-nbdtnnofa.exe

File PE Metadata
Compilation timestamp:
12/17/2010 11:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
12288:pA0i50GwghpRQmkp22G1YWEyP+bb7PyK6BpAhvRnXKuwz8Qa:pAfyGwWzkg25F1X6091XKuwfa

Entry address:
0x39AC

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 97, 46, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 42, 43, 00, 00, 6A, 00, E8, AB, 46, 00, 00, 6A, 08, A3, 88, 4C, 42, 00, E8, B1, 28, 00, 00, 6A, 00, 68, 60, 01, 00, 00, A3, 38, 4D, 42, 00, 8D, 85, 90, FE, FF, FF, 50, 6A, 00, 68, A4, A2, 40, 00, E8, F0, 45, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 4D, 42, 00, E8, EF, 2A, 00, 00, 83, C4, 18, E8, FE, 42, 00, 00, 52, 52, 50, 68, 00, D0, 42, 00, E8, DA, 2A, 00, 00, 57, 6A, 00, E8, 39, 42, 00, 00, 83...
 
[+]

Entropy:
7.8986  (probably packed)

Code size:
28.5 KB (29,184 bytes)

The file filedownloaded20successfully_downloader-nbdtnnofa.exe has been seen being distributed by the following URL.

http://sub.rhionx.info/NbdtNnoFa1cfb0c383def4c9a2fb8ee99c38293680mhaAtrnUCwYToyOntzOjI6InRzIjtpOjE0Mjg3MDk5OTg7czoxOiJmIjtzOjcyOiIvaG9tZS93d3cvYXNzZXRzL2JldHRlcl9pbnN0YWxsZXIvaW5zdGFsbGVycy9jbGkvc2V0dXBfMTQyODY0OTM5MzE3NC5leGUiO30=

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