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setup.exe

Office Sparks

The application setup.exe by Office Sparks 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from install-cdn.serialtrunc.com a web site host known to distribute potentially unwanted software operated by Yontoo LLC.
Publisher:
Office Sparks  (signed and verified)

MD5:
0e42ece18731725b5391e4fbc931a600

SHA-1:
f676e11afa47d6f77821255f703a8c60c6b5db72

SHA-256:
0deb5ede441766a8e066626927ddbc88d2f74ee20e3a6ead0ec0a7284a977b3d

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/24/2024 11:24:33 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.OfficeSp.Installer (M)
16.3.18.23

File size:
748.7 KB (766,688 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}\setup.exe

Digital Signature
Signed by:
Office Sparks

Authority:
VeriSign, Inc.

Valid from:
1/8/2016 2:00:00 AM

Valid to:
1/8/2017 1:59:59 AM

Subject:
CN=Office Sparks, O=Office Sparks, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
7EFC0DDA9139E0688F7724D6F5E388BF

File PE Metadata
Compilation timestamp:
12/6/2009 12:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:Lic2ihwMOXW1s15Ap/G/8g3D0Fw/tN8dkmLtpHHHrh7RGgJ+R5BWPyyMcLtGKwub:Lict36j8gz0FmcLbH1R1O2KyINU

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, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9869

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

http://install-cdn.serialtrunc.com/setup.exe

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