tsvr.exe

Trend Service

Wenchao Zhang

The application tsvr.exe by Wenchao Zhang 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 “IhPul”. While running, it connects to the Internet address server-54-239-132-9.sfo9.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Trend Corp.  (signed by Wenchao Zhang)

Product:
Trend Service

Description:
Service

Version:
3.0.0.61

MD5:
adfb3f63f51412dcd6df27ae88347b4e

SHA-1:
477626c4159f07d9a952ebe4ed9cb4888c1a7aee

SHA-256:
d6c4877f3595e6b683db92bfcd1517d5ebb3b21a6df02b1c11fbdbea60e59364

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
9/21/2018 7:27:21 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.9.5.9

File size:
200.7 KB (205,520 bytes)

Product version:
3.0.0.61

Original file name:
TSvr

File type:
Executable application (Win32 EXE)

Language:
Chinese (Simplified, PRC)

Common path:
C:\users\{user}\appdata\roaming\setup1\tsvr.exe

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
9/5/2016 7:00:00 AM

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

Subject:
CN=Wenchao Zhang, 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:
7CB55FC93FD558DCF3695EC30265298F

File PE Metadata
Compilation timestamp:
9/2/2016 5:00:53 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:7Xk+ErYyTfDjuHOosnfs8ihaG3rR/wsWOtRzMn6V6:7dAHDkVd1WObz46V

Entry address:
0x1AB8A

Entry point:
E8, 85, 02, 00, 00, E9, 03, FE, FF, FF, FF, 25, E0, E2, 41, 00, FF, 25, E4, E2, 41, 00, FF, 25, E8, E2, 41, 00, FF, 25, EC, E2, 41, 00, FF, 25, F0, E2, 41, 00, FF, 25, F4, E2, 41, 00, FF, 25, F8, E2, 41, 00, FF, 25, FC, E2, 41, 00, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 68, 29, AC, 41, 00, 64, FF, 35, 00, 00, 00, 00, 8B, 44, 24, 10, 89, 6C, 24, 10, 8D, 6C, 24, 10, 2B, E0, 53, 56, 57, A1, 00, 40, 42, 00, 31, 45, FC, 33, C5, 50, 89, 65, E8, FF, 75, F8, 8B, 45, FC, C7, 45, FC, FE, FF, FF, FF, 89, 45...
 
[+]

Entropy:
6.2428

Code size:
113 KB (115,712 bytes)

Service
Display name:
IhPul

Type:
Win32OwnProcess


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

TCP (HTTP):
Connects to server-54-192-14-96.ams1.r.cloudfront.net  (54.192.14.96:80)

TCP (HTTP):
Connects to server-54-192-14-241.ams1.r.cloudfront.net  (54.192.14.241:80)

TCP (HTTP):
Connects to server-52-85-83-232.lax1.r.cloudfront.net  (52.85.83.232:80)

TCP (HTTP):
Connects to server-52-85-77-125.lax3.r.cloudfront.net  (52.85.77.125:80)

TCP (HTTP):
Connects to server-54-239-132-9.sfo9.r.cloudfront.net  (54.239.132.9:80)

TCP (HTTP):
Connects to server-54-230-81-141.mia50.r.cloudfront.net  (54.230.81.141:80)

TCP (HTTP):
Connects to server-54-230-216-200.mrs50.r.cloudfront.net  (54.230.216.200:80)

TCP (HTTP):
Connects to server-54-230-216-117.mrs50.r.cloudfront.net  (54.230.216.117:80)

TCP (HTTP):
Connects to server-54-230-0-7.lhr5.r.cloudfront.net  (54.230.0.7:80)

TCP (HTTP):
Connects to server-54-230-0-231.lhr5.r.cloudfront.net  (54.230.0.231:80)

TCP (HTTP):
Connects to server-52-85-83-243.lax1.r.cloudfront.net  (52.85.83.243:80)

TCP (HTTP):
Connects to server-52-85-83-223.lax1.r.cloudfront.net  (52.85.83.223:80)

TCP (HTTP):
Connects to server-52-85-83-18.lax1.r.cloudfront.net  (52.85.83.18:80)

TCP (HTTP):
Connects to server-52-85-77-146.lax3.r.cloudfront.net  (52.85.77.146:80)

TCP (HTTP):
Connects to server-54-239-132-53.sfo9.r.cloudfront.net  (54.239.132.53:80)

TCP (HTTP):
Connects to server-54-239-132-4.sfo9.r.cloudfront.net  (54.239.132.4:80)

TCP (HTTP):
Connects to server-54-239-132-123.sfo9.r.cloudfront.net  (54.239.132.123:80)

TCP (HTTP):
Connects to server-54-230-95-58.fra2.r.cloudfront.net  (54.230.95.58:80)

TCP (HTTP):
Connects to server-54-230-95-20.fra2.r.cloudfront.net  (54.230.95.20:80)

TCP (HTTP):
Connects to server-54-230-95-199.fra2.r.cloudfront.net  (54.230.95.199:80)

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