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yomz.exe

Xin Zhou

The executable yomz.exe has been detected as malware by 1 anti-virus scanner. While running, it connects to the Internet address server-54-192-19-66.iad12.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Xin Zhou  (signed and verified)

MD5:
3e9e8afc17537d21ebb2a2ddc3143e25

SHA-1:
afff46b882713cbe974b9486e655ca32ad5eb76e

SHA-256:
fff09343b829b8cf343b61b50bea169ce194692a02b3173291d8339db7d2c57f

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
8/9/2025 7:06:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.1.26.8

File size:
415.2 KB (425,176 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:
1/17/2017 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:
65A50AC1DC609167928FF03D2E9DB9B7

File PE Metadata
Compilation timestamp:
1/18/2017 11:21:34 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x633B

Entry point:
E8, A8, 0C, 00, 00, E9, 51, 83, 00, 00, 55, 8B, EC, 53, 56, 8B, 75, 08, 33, DB, 57, 8B, 86, 84, 00, 00, 00, 85, C0, 74, 66, 3D, 58, 5E, 46, 00, 74, 5F, 8B, 46, 78, 85, C0, 74, 58, 39, 18, 75, 54, 8B, 86, 80, 00, 00, 00, 85, C0, 74, 17, 39, 18, 75, 13, 50, E8, 29, 1B, 00, 00, FF, B6, 84, 00, 00, 00, E8, 37, 11, 00, 00, 59, 59, 8B, 46, 7C, 85, C0, 74, 17, 39, 18, 75, 13, 50, E8, 0B, 1B, 00, 00, FF, B6, 84, 00, 00, 00, E8, 08, E1, FF, FF, 59, 59, FF, 76, 78, E8, F6, 1A, 00, 00, FF, B6, 84, 00, 00, 00, E8, EB...
 
[+]

Entropy:
7.8004  (probably packed)

Code size:
371 KB (379,904 bytes)

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

TCP (HTTP):
Connects to server-54-192-19-66.iad12.r.cloudfront.net  (54.192.19.66:80)

TCP (HTTP):
Connects to server-54-192-19-168.iad12.r.cloudfront.net  (54.192.19.168:80)

TCP (HTTP):
Connects to server-54-192-19-127.iad12.r.cloudfront.net  (54.192.19.127:80)

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