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caribooa.exe

yssoft

The application caribooa.exe, “LuckyTool Application” by yssoft has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from down.luckytool.net.
Publisher:
luckytool  (signed by yssoft)

Product:
luckytool

Description:
LuckyTool Application

Version:
1.0.0.1

MD5:
0e076140d17220dda98e79ebe8947362

SHA-1:
78e97c2511fabc7673b4ed61d65f574417e3cf2f

SHA-256:
042c54d65e1382399837eb93dee8d5e94d7f66771db31aa2e8d1d3f20731f650

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.

Analysis date:
11/27/2024 12:41:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.yssoft (M)
16.2.7.9

File size:
3.5 MB (3,716,272 bytes)

Product version:
1.0.0.1

Copyright:
Copyright (C) 2014 luckytool

Original file name:
luckytool

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\caribooa.exe

Digital Signature
Signed by:
yssoft

Authority:
thawte, Inc.

Valid from:
1/19/2016 9:00:00 AM

Valid to:
4/18/2016 8:59:59 AM

Subject:
CN=yssoft, O=yssoft, L=Guro-gu, S=Seoul, C=KR

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
05D7F2D305A278EEE71E58403E0621F3

File PE Metadata
Compilation timestamp:
4/21/2015 4:38:07 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
98304:Cu5QJBSJKGt4tpdDONU/U4528B5d7CFLOAkGkzdnEVomFHKnPg:lu81kyk28B5d7CFLOyomFHKnPg

Entry address:
0x1442C8

Entry point:
E8, 0B, CD, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 60, AE, 5B, 00, E8, C2, 19, 00, 00, E8, 93, 66, 00, 00, 0F, B7, F0, 6A, 02, E8, 9E, CC, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, BC, 9D, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
6.7516

Code size:
1.4 MB (1,494,016 bytes)

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

http://down.luckytool.net/.../caribooa.exe

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