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rdncldght.exe

Ding Ruan

The application rdncldght.exe by Ding Ruan 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 scheduled task under the Windows Task Scheduler triggered daily at a specified time. While running, it connects to the Internet address server-54-230-0-193.lhr5.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Ding Ruan  (signed and verified)

MD5:
3cd21c55dcc626549505fc6a9a07853a

SHA-1:
99cf083fca6d0c8bfcdcd6e27436cad44f4143e7

SHA-256:
b739b651563389b060269c557471a3971191fbaf994076b75fe6229badfadc1a

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/15/2024 8:30:53 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX (M)
16.7.28.10

File size:
330.5 KB (338,448 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\terpotion\rdncldght.exe

Digital Signature
Signed by:
Ding Ruan

Authority:
thawte, Inc.

Valid from:
7/21/2016 5:00:00 AM

Valid to:
4/14/2017 4:59:59 AM

Subject:
CN=Ding Ruan, 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:
0634467DCFB93D98BD28FB065996C811

File PE Metadata
Compilation timestamp:
7/27/2016 2:16:40 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:6lp8svr3yL8jGiTg8dpodLjCX7KGRoXHOq21/NS+blD6YiDXfDDt2CV4/snPN+RL:6lFj3tbPGaX7aXCZbmXIC9fuSx7zFw

Entry address:
0x1FE1D

Entry point:
E8, C2, 40, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, FF, 15, 88, F0, 43, 00, 6A, 01, A3, A4, F1, 44, 00, E8, 0F, 46, 00, 00, FF, 75, 08, E8, A4, 45, 00, 00, 83, 3D, A4, F1, 44, 00, 00, 59, 59, 75, 08, 6A, 01, E8, F5, 45, 00, 00, 59, 68, 09, 04, 00, C0, E8, 72, 45, 00, 00, 59, 5D, C3, 55, 8B, EC, 81, EC, 24, 03, 00, 00, 6A, 17, E8, AA, 32, 01, 00, 85, C0, 74, 05, 6A, 02, 59, CD, 29, A3, 88, EF, 44, 00, 89, 0D, 84, EF, 44, 00, 89, 15, 80, EF, 44, 00, 89, 1D, 7C, EF, 44, 00, 89, 35, 78, EF, 44, 00, 89, 3D, 74...
 
[+]

Entropy:
6.5232

Code size:
248 KB (253,952 bytes)

Scheduled Task
Task name:
Reading Cloud

Trigger:
Daily (Runs daily at 12:48 AM)

Description:
Cloud service of Reading, query, cache, and so on.


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

TCP (HTTP):
Connects to server-52-85-63-67.lhr50.r.cloudfront.net  (52.85.63.67:80)

TCP (HTTP):
Connects to server-52-85-63-192.lhr50.r.cloudfront.net  (52.85.63.192:80)

TCP (HTTP):
Connects to server-54-230-0-24.lhr5.r.cloudfront.net  (54.230.0.24:80)

TCP (HTTP):
Connects to server-54-192-3-237.lhr5.r.cloudfront.net  (54.192.3.237:80)

TCP (HTTP):
Connects to server-54-192-3-196.lhr5.r.cloudfront.net  (54.192.3.196:80)

TCP (HTTP):
Connects to server-52-85-63-93.lhr50.r.cloudfront.net  (52.85.63.93:80)

TCP (HTTP):
Connects to server-52-85-63-42.lhr50.r.cloudfront.net  (52.85.63.42:80)

TCP (HTTP):
Connects to server-52-85-63-32.lhr50.r.cloudfront.net  (52.85.63.32:80)

TCP (HTTP):
Connects to server-52-85-63-128.lhr50.r.cloudfront.net  (52.85.63.128:80)

TCP (HTTP):
Connects to server-54-230-0-56.lhr5.r.cloudfront.net  (54.230.0.56:80)

TCP (HTTP):
Connects to server-54-230-0-248.lhr5.r.cloudfront.net  (54.230.0.248:80)

TCP (HTTP):
Connects to server-54-230-0-212.lhr5.r.cloudfront.net  (54.230.0.212:80)

TCP (HTTP):
Connects to server-54-192-3-140.lhr5.r.cloudfront.net  (54.192.3.140:80)

TCP (HTTP):
Connects to server-52-85-63-243.lhr50.r.cloudfront.net  (52.85.63.243:80)

TCP (HTTP):
Connects to server-52-85-63-228.lhr50.r.cloudfront.net  (52.85.63.228:80)

TCP (HTTP):
Connects to server-52-85-63-226.lhr50.r.cloudfront.net  (52.85.63.226:80)

TCP (HTTP):
Connects to server-52-85-63-176.lhr50.r.cloudfront.net  (52.85.63.176:80)

TCP (HTTP):
Connects to server-54-230-187-89.cdg51.r.cloudfront.net  (54.230.187.89:80)

TCP (HTTP):
Connects to server-54-230-0-209.lhr5.r.cloudfront.net  (54.230.0.209:80)

TCP (HTTP):
Connects to server-54-192-3-93.lhr5.r.cloudfront.net  (54.192.3.93:80)

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