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jujkrkedu.exe

Ding Ruan

The application jujkrkedu.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.
Publisher:
Ding Ruan  (signed and verified)

MD5:
be560672b5754f6e8c356e0518482f72

SHA-1:
f825a51b71dca817a3c8c91e6cc450487b1e7faf

SHA-256:
e53789a207e35efffd787e0a6a2fab4aa8fd1f32738dab71635f973faea75e42

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/2/2026 10:19:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX (M)
16.12.17.23

File size:
406.2 KB (415,968 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Ding Ruan

Authority:
thawte, Inc.

Valid from:
12/1/2016 6:00:00 PM

Valid to:
4/13/2017 6:59:59 PM

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:
6DB5FC87B32978C10A30D23B21E5C821

File PE Metadata
Compilation timestamp:
11/23/2016 6:01:11 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x3D74

Entry point:
E8, F0, 73, 00, 00, E9, C5, 7B, 00, 00, 55, 8B, EC, 8B, 45, 08, 8B, 00, 81, 38, 63, 73, 6D, E0, 75, 25, 83, 78, 10, 03, 75, 1F, 8B, 40, 14, 3D, 20, 05, 93, 19, 74, 1B, 3D, 21, 05, 93, 19, 74, 14, 3D, 22, 05, 93, 19, 74, 0D, 3D, 00, 40, 99, 01, 74, 06, 33, C0, 5D, C2, 04, 00, E8, EA, 62, 00, 00, CC, 6A, 24, 68, 68, 19, 46, 00, E8, 55, 7E, 00, 00, 83, 65, D4, 00, 83, 65, D0, 00, 33, DB, 89, 5D, E0, 33, FF, 89, 7D, D8, 8B, 75, 08, 83, FE, 0B, 7F, 50, 74, 15, 8B, C6, 6A, 02, 59, 2B, C1, 74, 22, 2B, C1, 74, 08...
 
[+]

Entropy:
7.8224  (probably packed)

Code size:
364 KB (372,736 bytes)

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