UCBrowser.exe

UC Browser

TAOBAO (CHINA) SOFTWARE CO.,LTD.

The application UCBrowser.exe by TAOBAO (CHINA) SOFTWARE CO.,LTD has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address server-54-230-150-4.sin2.r.cloudfront.net on port 443.
Publisher:
UCWeb Inc.  (signed by TAOBAO (CHINA) SOFTWARE CO.,LTD.)

Product:
UC Browser

Version:
6.1.2015.1007

MD5:
a6ac5ff30fcd521080b718420fc103a5

SHA-1:
942ff4ead5d43172001de2c5adbcd4f164ff3c4c

SHA-256:
9642e8dd9c8791973160830785d4a78b27ce58a7caaae02d12ec2d4100605e74

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
2/21/2017 4:17:54 PM UTC  (seven months ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Taobao (L)
17.2.21.11

File size:
1.2 MB (1,207,696 bytes)

Product version:
6.1.2015.1007

Copyright:
Copyright 2008-2014 UCWeb Inc. All rights reserved.

Original file name:
UCBrowser.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\ucbrowser\application\ucbrowser.exe

Digital Signature
Authority:
VeriSign, Inc.

Valid from:
6/16/2016 5:00:00 AM

Valid to:
7/15/2018 4:59:59 AM

Subject:
CN="TAOBAO (CHINA) SOFTWARE CO.,LTD.", OU=RDC, O="TAOBAO (CHINA) SOFTWARE CO.,LTD.", L=Hangzhou, S=Zhejiang, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
780A0032A6CE7D0B5D5452F5CDE520DC

File PE Metadata
Compilation timestamp:
2/21/2017 2:03:09 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x7578A

Entry point:
E8, 30, 09, 00, 00, E9, 80, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 57, 56, 53, 33, FF, 8B, 44, 24, 14, 0B, C0, 7D, 14, 47, 8B, 54, 24, 10, F7, D8, F7, DA, 83, D8, 00, 89, 44, 24, 14, 89, 54, 24, 10, 8B, 44, 24, 1C, 0B, C0, 7D, 14, 47, 8B, 54, 24, 18, F7, D8, F7, DA, 83, D8, 00, 89, 44, 24, 1C, 89, 54, 24, 18, 0B, C0, 75, 18, 8B, 4C, 24, 18, 8B, 44, 24, 14, 33, D2, F7, F1, 8B, D8, 8B, 44, 24, 10, F7, F1, 8B, D3, EB, 41, 8B, D8, 8B, 4C, 24, 18, 8B, 54, 24, 14, 8B, 44, 24, 10, D1, EB, D1...
 
[+]

Entropy:
6.7444

Code size:
622 KB (636,928 bytes)

Shell Open Command
Open type:
ftp

Command:
"C:\Program Files\ucbrowser\application\ucbrowser.exe" -- "%1"


Windows Firewall Allowed Program
Name:
chromium (mdns-in)


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

TCP (HTTP SSL):
Connects to edge-star-shv-01-mxp1.facebook.com  (31.13.86.8:443)

TCP (HTTP SSL):
Connects to edge-star-mini-shv-01-mxp1.facebook.com  (31.13.86.36:443)

TCP (HTTP SSL):
Connects to xx-fbcdn-shv-01-lht6.fbcdn.net  (157.240.1.23:443)

TCP (HTTP SSL):
Connects to xx-fbcdn-shv-01-lhr3.fbcdn.net  (31.13.90.6:443)

TCP (HTTP SSL):
Connects to edge-z-1-p2-shv-01-lht6.facebook.com  (157.240.1.41:443)

TCP (HTTP SSL):
Connects to edge-star-shv-01-lht6.facebook.com  (157.240.1.18:443)

TCP (HTTP SSL):
Connects to edge-star-mini-shv-01-sin6.facebook.com  (157.240.7.35:443)

TCP (HTTP SSL):
Connects to ams10-001.ff.avast.com  (5.45.62.48:443)

TCP (HTTP SSL):
Connects to server-54-230-150-4.sin2.r.cloudfront.net  (54.230.150.4:443)

TCP (HTTP SSL):

TCP (HTTP SSL):
Connects to zymail.zyxel.com.tw  (219.87.158.116:443)

TCP (HTTP SSL):
Connects to xx-fbcdn-shv-01-vie1.fbcdn.net  (31.13.84.4:443)

TCP (HTTP SSL):
Connects to xx-fbcdn-shv-01-fra3.fbcdn.net  (31.13.93.7:443)

TCP (HTTP):
Connects to unknown.telstraglobal.net  (210.176.156.23:80)

TCP (HTTP SSL):
Connects to unknown.ord.scnet.net  (204.93.173.15:443)

TCP (HTTP):
Connects to s-prd-umpxl-adcom-scd-blue-b.evip.aol.com  (149.174.66.131:80)

TCP (HTTP SSL):
Connects to server-52-84-111-28.del51.r.cloudfront.net  (52.84.111.28:443)

TCP (HTTP SSL):
Connects to server-52-84-106-164.del51.r.cloudfront.net  (52.84.106.164:443)

TCP (HTTP):
Connects to server-52-84-105-160.del51.r.cloudfront.net  (52.84.105.160:80)

TCP (HTTP SSL):
Connects to l1.ycs.vip.inc.yahoo.com  (203.84.220.80:443)

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