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download-master.exe

Dipu

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application download-master.exe, “Dipu Setup ” by UpdateStar GmbH 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 installCore installer. The file has been seen being downloaded from www.presentbitsshare.com.
Publisher:
Hociso   (signed by UpdateStar GmbH)

Product:
Dipu

Description:
Dipu Setup

Version:
5.5.5.3

MD5:
8034b4280c76230005e00fb2dc69420b

SHA-1:
dc5d3d3458991fd554bcc19fe1689b5283820256

SHA-256:
fc59b2364f5205d329926fb0afd2e3025dd6a103bd01e45fa52d90592e171b98

Scanner detections:
1 / 68

Status:
Potentially unwanted

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:
11/5/2024 7:00:01 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.8.8.17

File size:
998.5 KB (1,022,488 bytes)

Product version:
5.8.9

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\download-master.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
GlobalSign nv-sa

Valid from:
1/8/2016 7:34:15 PM

Valid to:
3/6/2017 8:10:42 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

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

Serial number:
1121206405ACDAB5906908B3939BD86EF916

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:EHyi2UtY7LacKb533mTZmKN7gwN1AX9/XT92O3Mb7+HnSug8:EH7K2cKNOZ8K1AVxV3Eav

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9278

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

Code size:
39.5 KB (40,448 bytes)

The file download-master.exe has been seen being distributed by the following URL.

http://www.presentbitsshare.com/c?x=umSFLCj1j flApdTYGswn7rgIxr5aMDryAUUv3PhopQ=&c=Gq8rP72XO1tgaeN3DoSzoe4iUTyXaBcPl5ZgnKwaYfntivqSpj/7 WsSt4SH//F70EZNjuR3/ln4/VrhAfZUdbO pfx9I2WXSjYWEVQC88jPTQs8mwZFPCy kp86OWHHyoISC1HWPfDA/1ADSy/mdnd/fS8t8yG04cNpw6Ko Bo2z0xql46FKHU2BxE1iW36&downloadAs=download-master.exe&fallback_url=http://downloadmaster.ru/dm/.../dmaster.exe

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