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qkdup.exe

Yanling Sun

The application qkdup.exe by Yanling Sun 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-54-230-187-191.cdg51.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Yanling Sun  (signed and verified)

Version:
4.0.0.0

MD5:
1ec1a12e6f557b6f8bd8a1c5eae67916

SHA-1:
be104ba390bdb1b7f9444fe8ac15e960c805a093

SHA-256:
145178264abc82a5880dad5df35050bc1f05df6192282d7609204820f6346141

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/2/2025 4:48:03 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Elex (M)
16.8.11.9

File size:
385.3 KB (394,528 bytes)

Product version:
4.0.0.0

File type:
Executable application (Win32 EXE)

Language:
English (United States)

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

Digital Signature
Signed by:
Yanling Sun

Authority:
thawte, Inc.

Valid from:
8/10/2016 7:00:00 AM

Valid to:
11/26/2016 6:59:59 AM

Subject:
CN=Yanling Sun, 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:
77A2D6240DACFE13C1FE88D01396048D

File PE Metadata
Compilation timestamp:
8/10/2016 8:58:35 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
6144:TKoWz1eUBbPJXt7Bnw6ay+I2aJc8EVqETLqZzglBsm:eoWz1eUBblw6Hneqxglf

Entry address:
0x1F35B

Entry point:
E8, 59, 9C, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 8B, 45, 08, 85, C0, 74, 12, 83, E8, 08, 81, 38, DD, DD, 00, 00, 75, 07, 50, E8, 0C, E5, FF, FF, 59, 5D, C3, 55, 8B, EC, 56, 8B, 75, 0C, 57, 33, FF, 85, F6, 74, 1B, 6A, E0, 33, D2, 58, F7, F6, 3B, 45, 10, 73, 0F, E8, 6F, 15, 00, 00, C7, 00, 0C, 00, 00, 00, 33, C0, EB, 3C, 0F, AF, 75, 10, 53, 8B, 5D, 08, 85, DB, 74, 09, 53, E8, 24, 20, 00, 00, 59, 8B, F8, 56, 53, E8, 71, FD, FF, FF, 8B, D8, 59, 59, 85, DB, 74, 15, 3B, FE, 73, 11, 2B, F7, 56, 8D, 04, 1F, 6A...
 
[+]

Entropy:
5.7813

Code size:
212 KB (217,088 bytes)

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

TCP (HTTP):
Connects to server-54-230-187-191.cdg51.r.cloudfront.net  (54.230.187.191:80)

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