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psiphon3.exe

Pekemac

InstallFlash (New Media Holdings Ltd.)

The application psiphon3.exe, “Pekemac Setup ” by InstallFlash (New Media Holdings) 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 psiphon3.software.informer.com.
Publisher:
InstallFlash (New Media Holdings Ltd.)  (signed and verified)

Product:
Pekemac

Description:
Pekemac Setup

Version:
1.7.3.3

MD5:
0cebc460659b3a88b390955f4e068ab2

SHA-1:
9461d01cc13bd8c96d4cefae237b1a751697fc41

SHA-256:
bfdfd06049d7a8bb1f8c4f71a4288c1162caa7741b81f6fa5ebcd5c51f56702a

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:
11/23/2024 10:04:35 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.NMH.Bundler (M)
16.6.2.9

File size:
936.5 KB (958,976 bytes)

Product version:
3.8.6

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\psiphon3.exe

Digital Signature
Signed by:
InstallFlash (New Media Holdings Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
12/17/2015 4:36:25 PM

Valid to:
6/8/2016 8:05:22 PM

Subject:
CN=InstallFlash (New Media Holdings Ltd.), O=InstallFlash (New Media Holdings Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112118D12CDC9140CD3952184E51D0811E3D

File PE Metadata
Compilation timestamp:
6/20/1992 2:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:cVFnY1brW5m4pSK2a0//XV3gidmkeA+RSGazDe:c3YB62a0//X3JcSy

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9332

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

Code size:
37 KB (37,888 bytes)

The file psiphon3.exe has been seen being distributed by the following URL.

http://psiphon3.software.informer.com/.../

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