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dam_ay.exe

Xin Zhou

The executable dam_ay.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 d3g1g0k0wwnjag.cloudfront.net.
Publisher:
Xin Zhou  (signed and verified)

MD5:
5b1a1e01d0bd5f823270ecf12210b69f

SHA-1:
6e23ee3ad565f7e48dea0fb6fa5464ac455d1614

SHA-256:
cf218acbfb67fda947e9b13bc7c2398809040613facc56dcb170393f6a663a33

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
10/4/2025 5:45:01 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.1.6.20

File size:
404.5 KB (414,256 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Xin Zhou

Authority:
thawte, Inc.

Valid from:
12/28/2016 7:00:00 AM

Valid to:
3/23/2017 6:59:59 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:
5E8912A65ABC358245E3925501016131

File PE Metadata
Compilation timestamp:
12/26/2016 7:45:38 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0xA42E

Entry point:
E8, 9D, BF, FF, FF, E9, 2A, 13, 00, 00, 55, 8B, EC, 83, EC, 18, A1, 00, 30, 46, 00, 8D, 4D, E8, 83, 65, E8, 00, 33, C1, 8B, 4D, 08, 89, 45, F0, 8B, 45, 0C, 89, 45, F4, 8B, 45, 14, 40, C7, 45, EC, 3C, DE, 40, 00, 89, 4D, F8, 89, 45, FC, 64, A1, 00, 00, 00, 00, 89, 45, E8, 8D, 45, E8, 64, A3, 00, 00, 00, 00, FF, 75, 18, 51, FF, 75, 10, E8, 89, 3A, 00, 00, 8B, C8, 8B, 45, E8, 64, A3, 00, 00, 00, 00, 8B, C1, 8B, E5, 5D, C3, FF, 35, 60, 4E, 46, 00, FF, 15, 48, C0, 45, 00, C3, 55, 8B, EC, 56, 8B, 75, 08, 85, F6...
 
[+]

Entropy:
7.8269  (probably packed)

Code size:
361.5 KB (370,176 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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