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dam_ay.exe

Yuanyuan Zhang

The application dam_ay.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 d3g1g0k0wwnjag.cloudfront.net.
Publisher:
Yuanyuan Zhang  (signed and verified)

MD5:
f56783c015923e25c50d528052954e08

SHA-1:
de592575abb89ec84d62e6db397f011d5a1c6a30

SHA-256:
546c67d256e89c98f84fa7e56508db543140231cec2b8c939cd53f69d7e356f7

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/18/2026 1:48:54 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Mutahba (M)
17.1.26.0

File size:
408.6 KB (418,360 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Yuanyuan Zhang

Authority:
thawte, Inc.

Valid from:
1/17/2017 3:00:00 AM

Valid to:
4/21/2017 2:59:59 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 11:01:34 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x9A19

Entry point:
E8, 50, 09, 00, 00, E9, 99, 2A, 00, 00, E8, 0F, 04, 00, 00, E8, 4A, DD, FF, FF, 85, C0, 75, 08, E8, 2D, C6, FF, FF, 33, C0, C3, 68, 55, 9B, 40, 00, E8, AB, 89, FF, FF, A3, E8, 47, 46, 00, 59, 83, F8, FF, 74, E3, 56, 68, BC, 03, 00, 00, 6A, 01, E8, 20, B3, FF, FF, 8B, F0, 59, 59, 85, F6, 74, 2D, 56, FF, 35, E8, 47, 46, 00, E8, 19, E8, FF, FF, 59, 59, 85, C0, 74, 1B, 6A, 00, 56, E8, 02, CA, FF, FF, 59, 59, FF, 15, 94, D0, 45, 00, 83, 4E, 04, FF, 89, 06, 33, C0, 40, 5E, C3, E8, CE, C5, FF, FF, 33, C0, 5E, C3...
 
[+]

Entropy:
7.8148  (probably packed)

Code size:
365 KB (373,760 bytes)

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

http://d3g1g0k0wwnjag.cloudfront.net/.../dam_ay.exe

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