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internet-explorer_11.0.exe

Muf

Sivensys SRL

The executable internet-explorer_11.0.exe, “Muf Setup ” has been detected as malware by 1 anti-virus scanner. The program is a setup application that uses the Inno Setup installer. The file has been seen being downloaded from www.funcentralnew.com. While running, it connects to the Internet address generic.external.zlb.scl3.mozilla.com on port 443.
Publisher:
Sivensys SRL  (signed and verified)

Product:
Muf

Description:
Muf Setup

Version:
3.1.3.0

MD5:
7109c8e7d84727515927b7f3018021e8

SHA-1:
e18177666f91ca29a9d7380073060512c85f8295

SHA-256:
0b9c6f14e7a18cfd81016e68557b856a7f5b4c9fb8e3c2fc9cb8d134097747f4

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
7/4/2025 7:14:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.2.22.10

File size:
1.2 MB (1,299,912 bytes)

Product version:
1.0.9

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\internet-explorer_11.0.exe

Digital Signature
Signed by:
Sivensys SRL

Authority:
GlobalSign nv-sa

Valid from:
10/20/2016 8:04:57 AM

Valid to:
10/21/2017 8:04:57 AM

Subject:
CN=Sivensys SRL, O=Sivensys SRL, L=IASI, C=RO

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G3, O=GlobalSign nv-sa, C=BE

Serial number:
0D38E905F0B0BA5733036DFB

File PE Metadata
Compilation timestamp:
6/19/1992 10:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xAA98

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 2E, 86, FF, FF, E8, 35, 98, FF, FF, E8, 9C, 9B, FF, FF, E8, B7, 9F, FF, FF, E8, 56, BF, FF, FF, E8, ED, E8, FF, FF, E8, 54, EA, FF, FF, 33, C0, 55, 68, 69, B1, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 32, B1, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, D0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, C2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, 24, 93, FF, FF, 8D, 55, F0, 33, C0, E8, 66, C5, FF, FF, 8B, 55...
 
[+]

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

Code size:
40.5 KB (41,472 bytes)

The file internet-explorer_11.0.exe has been seen being distributed by the following URL.

http://www.funcentralnew.com/9zuGk3OYJ1RVlaL3gpzygUNwKYgNyPTuOfqO2EIkvsDJqrr0JaER438CvQtKO6EpPi7gaACH7M5cgdppJpWKyPC01IttjPB1S3y2lWBZQT8ZVqamoUR6hgeZW4eenYSOn4pMt84P7l74knoPyzE7bIHUZs7y57fI829hfPMMbu5Pc2AZ2 WjZhfMDeZdT3_NJbkXoNL4Yprr1ZPb5vfChI91WUMfwg==-GxQAAKRdxtretCCEFCKK5DqwG4Nvu_EA

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

TCP (HTTP):
Connects to ec2-52-214-247-42.eu-west-1.compute.amazonaws.com  (52.214.247.42:80)

TCP (HTTP SSL):
Connects to generic.external.zlb.scl3.mozilla.com  (63.245.213.12:443)

TCP (HTTP):
Connects to ec2-52-50-196-247.eu-west-1.compute.amazonaws.com  (52.50.196.247:80)

TCP (HTTP):
Connects to ec2-54-154-229-88.eu-west-1.compute.amazonaws.com  (54.154.229.88:80)

TCP (HTTP):
Connects to s3-1-w.amazonaws.com  (52.216.0.168:80)

TCP (HTTP):
Connects to ec2-54-154-109-8.eu-west-1.compute.amazonaws.com  (54.154.109.8:80)

TCP (HTTP):
Connects to server-52-85-221-72.cdg50.r.cloudfront.net  (52.85.221.72:80)

TCP (HTTP):
Connects to ec2-54-191-59-48.us-west-2.compute.amazonaws.com  (54.191.59.48:80)

TCP (HTTP):
Connects to ec2-54-186-47-57.us-west-2.compute.amazonaws.com  (54.186.47.57:80)

TCP (HTTP):
Connects to ec2-54-154-190-87.eu-west-1.compute.amazonaws.com  (54.154.190.87:80)

TCP (HTTP):
Connects to ec2-52-49-170-39.eu-west-1.compute.amazonaws.com  (52.49.170.39:80)

TCP (HTTP):
Connects to ec2-52-39-235-174.us-west-2.compute.amazonaws.com  (52.39.235.174:80)

TCP (HTTP):
Connects to ec2-52-30-150-214.eu-west-1.compute.amazonaws.com  (52.30.150.214:80)

TCP (HTTP):
Connects to ec2-176-34-130-130.eu-west-1.compute.amazonaws.com  (176.34.130.130:80)

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