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isr_lm.exe

Yuanyuan Zhang

The application isr_lm.exe by Yuanyuan 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.
Publisher:
Yuanyuan Zhang  (signed and verified)

MD5:
50d8b3805b8ef015f4b791ee1b1e351d

SHA-1:
651e09dc088f23f6cc4fcd0478ab76f194a7985c

SHA-256:
93e9829cfb1e59a1d80072f37af3aaf87b9fc1e6cf6f3e3bfe29b7b80a50ace2

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/17/2025 8:47:14 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Mutahba (M)
16.11.7.12

File size:
413.2 KB (423,136 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Yuanyuan Zhang

Authority:
thawte, Inc.

Valid from:
10/24/2016 8:00:00 AM

Valid to:
4/21/2017 7:59:59 AM

Subject:
CN=Yuanyuan 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:
1B5342F4535DD4CDF2CFE118D8E09921

File PE Metadata
Compilation timestamp:
11/3/2016 10:30:20 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:KueOZv5nKidSxCxq168nKNoFnI0Zodg0b7bPPoYMBKngURfpZS5IlE:KuRhnKpCx18nQoFj0b7Tsgndp7a

Entry address:
0x6864

Entry point:
E8, CA, 0B, 00, 00, E9, 65, 55, 00, 00, 55, 8B, EC, 83, EC, 2C, A1, 00, 50, 46, 00, 33, C5, 89, 45, FC, 8B, 45, 08, 8D, 4D, E4, 53, 8B, 5D, 14, 56, 57, 8B, 7D, 0C, 6A, 16, 5E, 56, 51, 8D, 4D, D4, 51, FF, 70, 04, FF, 30, E8, 7A, D2, FF, FF, 83, C4, 14, 85, FF, 75, 10, E8, 8E, 0F, 00, 00, 89, 30, E8, 1A, 07, 00, 00, 8B, C6, EB, 74, 8B, 75, 10, 85, F6, 75, 0A, E8, 77, 0F, 00, 00, 6A, 16, 5E, EB, E4, 83, C9, FF, 3B, F1, 74, 16, 33, C0, 8B, CE, 83, 7D, D4, 2D, 0F, 94, C0, 2B, C8, 33, C0, 85, DB, 0F, 9F, C0, 2B...
 
[+]

Entropy:
7.8075  (probably packed)

Code size:
370 KB (378,880 bytes)

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