skypesetupfull_downloader.exe

New Software S.C

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application skypesetupfull_downloader.exe by New Software S.C has been detected as adware 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 installCore installer. The file has been seen being downloaded from www.instalki.pl.
Publisher:
New Software S.C  (signed and verified)

MD5:
a6502dc02bee62f973cae58d827f1a97

SHA-1:
5e83aca3a05b5054f7fcd435b0b54c1ede71684a

SHA-256:
734e44f63bc6ad04e0d5f067056675e424d225298caff1d4cc213150b7d7f2f1

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/26/2024 12:40:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.8.1.10

File size:
628.8 KB (643,880 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Authority:
COMODO CA Limited

Valid from:
10/29/2013 1:00:00 AM

Valid to:
10/30/2014 12:59:59 AM

Subject:
CN=New Software S.C, O=New Software S.C, STREET=ul. Dabrowskiego 12, L=Zielona Gora, S=Poland, PostalCode=65-021, C=PL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00F3B1DA972DF04468B0D71B6A838C5A7F

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:aLMJfsGKPa7r7PfsI/+wepHlNqOlF2td9lGHvmtiq+lGVyneTDCBk:6MJfs7PaLPkGepFNqOlsd/ROGVzT

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
36 KB (36,864 bytes)

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

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