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winrar.exe

Lacuf

InstallFlash (Fried Cookie Ltd)

The Fried Cookie installer utilizes the InstallCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application winrar.exe, “Lacuf Setup ” by InstallFlash (Fried Cookie) 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 setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. With this installer, users are expecting to download WinRAR archiver but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Robu   (signed by InstallFlash (Fried Cookie Ltd))

Product:
Lacuf

Description:
Lacuf Setup

Version:
3.8.4.3

MD5:
91a089bbe6a1fa7194c2fe6b407f9541

SHA-1:
d803dea6f87417d90bce82dee241eb56b30b2964

SHA-256:
53806dc11743a6456f6b6e83e96eb3aec9daf719856568dd50b38d1fa9369ce0

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
11/27/2024 6:35:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.FC.Installer (M)
16.3.3.9

File size:
1.1 MB (1,120,352 bytes)

Product version:
2.4.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\winrar.exe

Digital Signature
Signed by:
InstallFlash (Fried Cookie Ltd)

Authority:
GlobalSign nv-sa

Valid from:
12/17/2015 2:18:16 PM

Valid to:
6/2/2016 5:24:43 PM

Subject:
CN=InstallFlash (Fried Cookie Ltd), O=InstallFlash (Fried Cookie Ltd), L=Tel Aviv, C=IL

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

Serial number:
1121ACE394F39EFB26D753579A412465CB79

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):
24576:J5pydzYpRU332AMsh7+m+JeFxOAgJFiG4C3/YuFA8TPu5RY5:JDazYmmEA+xOtFiG4C3DFyRY5

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, 53, C9, FF, FF, E8, 9A, 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...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file winrar.exe has been seen being distributed by the following 4 URLs.

http://www.presentfuncity.com/c?x=lhRr92r5hna50mJByLl7lca2ih3MmkJM9 L2hM2iNpc=&c=gUsX/3A7wl38kN GGIv1B9JO02Nrs9RdFB3iUOtwlzGQsuW kZ8E69Erzd9gk/mmXt 4OFJfRLf/.../eP1ZNptPBGmUHPp&downloadAs=WinRAR.exe

http://www.packageflashcurrent.com/c?x=0mo0uFhNS12lnH3YqksA63lhIVGms1atwjIjbb2diPE=&c=RgwkaID7ZBzBfTH /1VOs4vTSLSzPeKfWH VbnO/ryZ19VL99OYw/.../CTkQ4qmDkL2EvzLeTjoBsY2sFCKPax1Sy9rusaJayL02ivdq9T2F28KUIKgHOa&downloadAs=WinRAR.exe

http://www.presentfuncity.com/c?x=L4NJhF5ei76leSCANESjjGbP5Idzx3dCLfYqHHJ51IY=&c=UfzWuamvgYe1NeiHyU3kaikFTwBn3Um8daSTjOOpaIhsvYLYo7RRIWDj k/.../fv1l&downloadAs=WinRAR.exe

http://www.tagfilescity.com/c?x=os/YTpRQGx4bCBM4quvTf4FGrsEEB1J2vLkkYLZcND0=&c=vhNFjqp0sxaF/bg8BK3iCOCVqkqsC1CGOlzDf6dRLk28mSBEMMcAQ3FrIjT SuSQLHVwyHeQpxCG6t0e/.../1FJEY4KKRcvXqcggulvsEW ANTmyvciMpjNO&downloadAs=WinRAR.exe

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