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yomz.exe

Xin Zhou

The executable yomz.exe has been detected as malware by 1 anti-virus scanner. This is a setup program which is used to install the application. The file has been seen being downloaded from dgkytklfjrqkb.cloudfront.net.
Publisher:
Xin Zhou  (signed and verified)

MD5:
530a03ed790521e04ef311fad6e23fb0

SHA-1:
96f0aa3ff4f4ffb2ce7879146f6925d8e2799ec2

SHA-256:
833dfb1a5826547d4ee6aa886ef5c6f4aa0803a7efe8492def89210689246c67

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
10/4/2025 9:51:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.12.1.12

File size:
416.2 KB (426,200 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\yomz.exe

Digital Signature
Signed by:
Xin Zhou

Authority:
thawte, Inc.

Valid from:
11/21/2016 3:00:00 AM

Valid to:
3/23/2017 2:59:59 AM

Subject:
CN=Xin Zhou, 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:
696F62AA5E54725E0D70304080E0E296

File PE Metadata
Compilation timestamp:
11/14/2016 8:14:55 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:7q7JdzKgs/a4pPtjlc36XPdPcJPojBqGBZc:u7Ta/fnXEPo9fc

Entry address:
0x2876

Entry point:
E8, 62, 60, 00, 00, E9, 6D, 95, 00, 00, 55, 8B, EC, 6A, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 2C, 04, 00, 00, 83, C4, 10, 5D, C3, E8, 6D, 7F, 00, 00, 85, C0, 74, 08, 6A, 16, E8, B9, EB, FF, FF, 59, F6, 05, B0, 4E, 46, 00, 02, 74, 21, 6A, 17, E8, 67, BD, 00, 00, 85, C0, 74, 05, 6A, 07, 59, CD, 29, 6A, 01, 68, 15, 00, 00, 40, 6A, 03, E8, C9, 80, 00, 00, 83, C4, 0C, 6A, 03, E8, 7A, 5C, 00, 00, CC, 53, 56, 8B, 35, 64, 53, 46, 00, 33, DB, 57, 8B, FB, 85, F6, 75, 1B, 83, C8, FF, E9, A1, 00, 00, 00, 66, 3B...
 
[+]

Code size:
367.5 KB (376,320 bytes)

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

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

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