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oldfreda.exe

yssoft

The application oldfreda.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. The file has been seen being downloaded from down.luckytool.net. While running, it connects to the Internet address 16.234.212.118.adsl-pool.jx.chinaunicom.com on port 443.
Publisher:
luckytool  (signed by yssoft)

Product:
luckytool

Description:
LuckyTool Application

Version:
1.0.0.1

MD5:
99c4ed48a89c2875275cdcec6c232fb8

SHA-1:
9a0b575d6897076e7c6921c2e6de7b0cacabcee7

SHA-256:
7f5cee09ddd66debb8d735a9df50fa5d97728323b5eda7ead9a9f516126d9930

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:
2/26/2025 6:49:39 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.yssoft (M)
16.4.21.6

File size:
3.6 MB (3,757,240 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\roaming\oldfred\oldfreda.exe

Digital Signature
Signed by:
yssoft

Authority:
thawte, Inc.

Valid from:
3/24/2016 9:00:00 AM

Valid to:
5/24/2018 8:59:59 AM

Subject:
CN=yssoft, O=yssoft, L=Chilgok-gun, S=Gyeongsangbuk-do, C=KR

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

Serial number:
4FFD8833DCF52D25418DA64CD58D741A

File PE Metadata
Compilation timestamp:
4/21/2015 4:38:36 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
98304:iu545ZyhKmtQf5lD+N0H8A528B5d7OFLOAkGkzdnEVomFHKnPH:FeU1KS828B5d7OFLOyomFHKnPH

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:
6.7342

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

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

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

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP SSL):
Connects to hn.kd.ny.adsl  (42.236.126.144:443)

TCP (HTTP):
Connects to mbox06.hanafos.com  (211.110.197.26:80)

TCP (HTTP):
Connects to ec2-52-87-81-29.compute-1.amazonaws.com  (52.87.81.29:80)

TCP (HTTP):
Connects to ec2-52-198-146-117.ap-northeast-1.compute.amazonaws.com  (52.198.146.117:80)

TCP (HTTP SSL):
Connects to 190.203.215.139.adsl-pool.jlccptt.net.cn  (139.215.203.190:443)

TCP (HTTP SSL):
Connects to 16.234.212.118.adsl-pool.jx.chinaunicom.com  (118.212.234.16:443)

TCP (HTTP SSL):
Connects to 13.234.212.118.adsl-pool.jx.chinaunicom.com  (118.212.234.13:443)

TCP (HTTP SSL):
Connects to 103.234.212.118.adsl-pool.jx.chinaunicom.com  (118.212.234.103:443)

TCP (HTTP):
Connects to a23-43-11-27.deploy.static.akamaitechnologies.com  (23.43.11.27:80)

TCP (HTTP SSL):
Connects to 15.234.212.118.adsl-pool.jx.chinaunicom.com  (118.212.234.15:443)

TCP (HTTP SSL):
Connects to 14.234.212.118.adsl-pool.jx.chinaunicom.com  (118.212.234.14:443)

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