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book.exe

CORLEON GROUP LTD

The application book.exe by CORLEON GROUP has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup program which is used to install the application. The file has been seen being downloaded from greepusk.com.
Publisher:
CORLEON GROUP LTD  (signed and verified)

Version:
1.0.0.0

MD5:
2107b204bdcdd2b855794d52804f56bf

SHA-1:
5ad86da2a683a8cf87dc97d746b1ce0246cdd72a

SHA-256:
7e0b4f87e7bf648b694d6b6abdf75b1bfda09eb0814c1ac683a3df4e3d73f229

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.

Analysis date:
2/26/2025 1:06:59 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallMonster.CORLEONGROUP (M)
16.2.12.0

File size:
2.4 MB (2,487,872 bytes)

Product version:
1.0.0.0

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
CORLEON GROUP LTD

Authority:
VeriSign, Inc.

Valid from:
1/16/2014 4:00:00 AM

Valid to:
1/17/2015 3:59:59 AM

Subject:
CN=CORLEON GROUP LTD, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=CORLEON GROUP LTD, L=Mahe, S=Maine, C=SC

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:
05D1EDA621A201F36C3E158FEB2D4DC2

File PE Metadata
Compilation timestamp:
3/23/2014 9:20:12 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:CSMmabRZl6v+ANjFEgksrO7lnMZR3M6psVlybsUvTI1lWWg2WFz:DLAZwvVdFtrO7l+xpmbAag2WFz

Entry address:
0x729AD0

Entry point:
60, BE, 00, 10, 92, 00, 8D, BE, 00, 00, AE, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
2 MB (2,134,016 bytes)

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

http://greepusk.com/.../?j=c2lkPTcmdXJsPWh0dHAlM0ElMkYlMkZteWJpbi5ydSUyRnNpdGVzJTJGZmlsZXMlMkZkZWZlY3QtdmVkb21vc3QtMi5kb2MmbmFtZT0mdHlwZT1ib29rJnNpemU9MTU5

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