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silmina.exe

Dening Hu

The application silmina.exe by Dening Hu 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 runs as a separate (within the context of its own process) windows Service named “winsaber”. While running, it connects to the Internet address server-54-230-0-230.lhr5.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Dening Hu  (signed and verified)

MD5:
7984f2414d0b988161ab49fb75215045

SHA-1:
4fe616ac6baa615f5e83c4900eb42a1580e35383

SHA-256:
0ad49c59e7f0c2afc89d539bfeb12a19f0c2ff99ed4f632d837857f33dd94601

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/3/2024 2:06:06 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Elex (M)
16.8.26.9

File size:
335.7 KB (343,768 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\tools\silmina.exe

Digital Signature
Signed by:
Dening Hu

Authority:
thawte, Inc.

Valid from:
8/26/2016 7:00:00 AM

Valid to:
6/9/2017 6:59:59 AM

Subject:
CN=Dening Hu, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

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

Serial number:
1B4C3DB975D9BC9D6ACE9646EB28502A

File PE Metadata
Compilation timestamp:
8/26/2016 9:06:10 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
6144:Vr4OGAWxAJU2lEiz8q9oMOVWwiRj4AHL3sOslgdAcuIuOEF3jE0YhQvo:0xAubizdyMseylgdAc5uOEJjlo

Entry address:
0x20B74

Entry point:
E8, B6, BE, 00, 00, E9, 7F, FE, FF, FF, E8, AE, 3D, 00, 00, 85, C0, 75, 06, B8, E4, 18, 45, 00, C3, 83, C0, 0C, C3, 55, 8B, EC, 56, E8, E4, FF, FF, FF, 8B, 4D, 08, 51, 89, 08, E8, 20, 00, 00, 00, 59, 8B, F0, E8, 05, 00, 00, 00, 89, 30, 5E, 5D, C3, E8, 7A, 3D, 00, 00, 85, C0, 75, 06, B8, E0, 18, 45, 00, C3, 83, C0, 08, C3, 55, 8B, EC, 8B, 4D, 08, 33, C0, 3B, 0C, C5, 78, 17, 45, 00, 74, 27, 40, 83, F8, 2D, 72, F1, 8D, 41, ED, 83, F8, 11, 77, 05, 6A, 0D, 58, 5D, C3, 8D, 81, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8...
 
[+]

Entropy:
6.4876

Code size:
257 KB (263,168 bytes)

Service
Display name:
winsaber

Type:
Win32OwnProcess


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

TCP (HTTP):
Connects to server-54-192-19-122.iad12.r.cloudfront.net  (54.192.19.122:80)

TCP (HTTP):
Connects to server-52-85-94-230.jfk5.r.cloudfront.net  (52.85.94.230:80)

TCP (HTTP):
Connects to server-54-230-81-241.mia50.r.cloudfront.net  (54.230.81.241:80)

TCP (HTTP):
Connects to server-54-230-81-154.mia50.r.cloudfront.net  (54.230.81.154:80)

TCP (HTTP):
Connects to server-54-230-81-55.mia50.r.cloudfront.net  (54.230.81.55:80)

TCP (HTTP):
Connects to server-54-230-81-113.mia50.r.cloudfront.net  (54.230.81.113:80)

TCP (HTTP):
Connects to server-52-84-246-100.sfo20.r.cloudfront.net  (52.84.246.100:80)

TCP (HTTP):
Connects to server-54-230-163-122.jax1.r.cloudfront.net  (54.230.163.122:80)

TCP (HTTP):
Connects to server-52-85-63-218.lhr50.r.cloudfront.net  (52.85.63.218:80)

TCP (HTTP):
Connects to server-52-85-63-159.lhr50.r.cloudfront.net  (52.85.63.159:80)

TCP (HTTP):
Connects to server-52-84-246-72.sfo20.r.cloudfront.net  (52.84.246.72:80)

TCP (HTTP):
Connects to server-52-84-246-138.sfo20.r.cloudfront.net  (52.84.246.138:80)

TCP (HTTP):
Connects to server-54-230-81-89.mia50.r.cloudfront.net  (54.230.81.89:80)

TCP (HTTP):
Connects to server-54-230-81-249.mia50.r.cloudfront.net  (54.230.81.249:80)

TCP (HTTP):
Connects to server-54-230-81-239.mia50.r.cloudfront.net  (54.230.81.239:80)

TCP (HTTP):
Connects to server-54-230-81-209.mia50.r.cloudfront.net  (54.230.81.209:80)

TCP (HTTP):
Connects to server-54-230-81-167.mia50.r.cloudfront.net  (54.230.81.167:80)

TCP (HTTP):
Connects to server-54-230-51-7.jfk5.r.cloudfront.net  (54.230.51.7:80)

TCP (HTTP):
Connects to server-54-230-216-156.mrs50.r.cloudfront.net  (54.230.216.156:80)

TCP (HTTP):
Connects to server-54-230-163-110.jax1.r.cloudfront.net  (54.230.163.110:80)

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