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book.exe

LLC Mail.Ru

The application book.exe by LLC Mail.Ru has been detected as a potentially unwanted program 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 horses.nashi-myfiles.ru.
Publisher:
LLC Mail.Ru  (signed and verified)

MD5:
bb9647a8deb543c09d9c2806ed0c0b74

SHA-1:
5ba76c1e071caf3d03d15c7dbaac30af31134b2a

SHA-256:
d6e00401e3e2b42de08a154185adc8a54feaad3c582df690466ff78487dae967

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/25/2024 1:30:16 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Optional.MailRu.E
14.4.14.4

File size:
98.5 KB (100,896 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
LLC Mail.Ru

Authority:
Thawte, Inc.

Valid from:
1/14/2014 4:00:00 AM

Valid to:
3/15/2016 3:59:59 AM

Subject:
CN=LLC Mail.Ru, O=LLC Mail.Ru, L=Moscow, S=Moscow, C=RU

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
391BE08AD60C2810187D12419BF289D9

File PE Metadata
Compilation timestamp:
4/4/2014 5:13:42 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
3072:1Zb9uT6nAMv1NJiXQT61UGnnnt9f0unoJnynnInnnFWf2:1ZbY6nZs11UGnnnt10unoJnynnInnn0

Entry address:
0x1140

Entry point:
55, 89, E5, 83, EC, 18, C7, 04, 24, 02, 00, 00, 00, FF, 15, 58, 11, 41, 00, E8, C8, FE, FF, FF, 90, 8D, B4, 26, 00, 00, 00, 00, 55, 89, E5, 83, EC, 18, C7, 04, 24, 01, 00, 00, 00, FF, 15, 58, 11, 41, 00, E8, A8, FE, FF, FF, 90, 8D, B4, 26, 00, 00, 00, 00, 55, 89, E5, 53, 83, EC, 14, 8B, 45, 08, 8B, 00, 8B, 00, 3D, 91, 00, 00, C0, 77, 3B, 3D, 8D, 00, 00, C0, 72, 4B, BB, 01, 00, 00, 00, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 08, 00, 00, 00, E8, E3, 1D, 00, 00, 83, F8, 01, 0F, 84, F1, 00, 00, 00, 85, C0...
 
[+]

Code size:
8.5 KB (8,704 bytes)

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

http://horses.nashi-myfiles.ru/get_file?sid=14190&url=aHR0cDovL3Boamt0LjE2bWIuY29tL2Jvb2suZG9j&name=Ym9vay5kb2M=&type=Ym9vaw==&size=MjMyNzgzOA==

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