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yomz.exe

Yuanyuan Zhang

The application yomz.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. This is a setup program which is used to install the application. The file has been seen being downloaded from dgkytklfjrqkb.cloudfront.net.
Publisher:
Yuanyuan Zhang  (signed and verified)

MD5:
38eb076a227e733e74db158cc039eb12

SHA-1:
0864f0875c8ef20f0ef5f9195f3edfb4f2888d54

SHA-256:
224287830442d111e78f1693810a620b250ad396630df385cea0959e122b0954

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/18/2026 5:40:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Mutahba (M)
17.1.26.3

File size:
411.4 KB (421,296 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\yomz.exe

Digital Signature
Signed by:
Yuanyuan Zhang

Authority:
thawte, Inc.

Valid from:
1/17/2017 7:00:00 AM

Valid to:
4/21/2017 6:59:59 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:
0858C1B2FA3C531FF676CC1D01C3C0EA

File PE Metadata
Compilation timestamp:
1/18/2017 3:12:51 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x320A

Entry point:
E8, 67, 6F, 00, 00, E9, A8, 93, 00, 00, 55, 8B, EC, 8B, 45, 08, 56, 8B, F1, 83, 66, 04, 00, C7, 06, 34, D6, 45, 00, C6, 46, 08, 00, FF, 30, E8, FE, 00, 00, 00, 8B, C6, 5E, 5D, C2, 04, 00, 55, 8B, EC, 8B, 45, 08, D9, EE, DC, 18, DF, E0, F6, C4, 41, 7A, 05, 33, C0, 40, 5D, C3, 33, C0, 5D, C3, 55, 8B, EC, 51, 51, 53, 56, 57, 64, 8B, 35, 00, 00, 00, 00, 89, 75, F8, C7, 45, FC, 7D, 32, 40, 00, 6A, 00, FF, 75, 0C, FF, 75, FC, FF, 75, 08, FF, 15, 2C, D0, 45, 00, 8B, 45, 0C, 8B, 40, 04, 83, E0, FD, 8B, 4D, 0C, 89...
 
[+]

Entropy:
7.8137  (probably packed)

Code size:
365.5 KB (374,272 bytes)

The file yomz.exe has been seen being distributed by the following URL.

http://dgkytklfjrqkb.cloudfront.net/.../yomz.exe

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