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damu_ay.exe

Xin Zhou

The executable damu_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:
beb03bbc08c429b2a3b622f6db6e7a57

SHA-1:
99ac9d690b527e3ba54120ff6c515b3946239d34

SHA-256:
672fad37ad8b95283399065210f52825810ad97bdb6d20b6890bd2cca64dd6dd

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
6/27/2025 12:37:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.2.4.8

File size:
416.5 KB (426,456 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\damu_ay.exe

Digital Signature
Signed by:
Xin Zhou

Authority:
thawte, Inc.

Valid from:
11/16/2016 6:00:00 PM

Valid to:
3/22/2017 5:59:59 PM

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:
6FCED1F00CF94B4441BCEC9673DC734C

File PE Metadata
Compilation timestamp:
11/10/2016 9:28:26 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x4FD9

Entry point:
E8, C1, E4, FF, FF, E9, F5, 72, 00, 00, 6A, 08, 68, F8, 2B, 46, 00, E8, 51, 84, 00, 00, 8B, 75, 08, 85, F6, 0F, 84, FE, 00, 00, 00, 83, 7E, 24, 00, 74, 09, FF, 76, 24, E8, 62, 13, 00, 00, 59, 83, 7E, 2C, 00, 74, 09, FF, 76, 2C, E8, 53, 13, 00, 00, 59, 83, 7E, 34, 00, 74, 09, FF, 76, 34, E8, 44, 13, 00, 00, 59, 83, 7E, 3C, 00, 74, 09, FF, 76, 3C, E8, 35, 13, 00, 00, 59, 83, 7E, 40, 00, 74, 09, FF, 76, 40, E8, 26, 13, 00, 00, 59, 83, 7E, 44, 00, 74, 09, FF, 76, 44, E8, 17, 13, 00, 00, 59, 83, 7E, 48, 00, 74...
 
[+]

Entropy:
7.8102  (probably packed)

Code size:
368 KB (376,832 bytes)

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

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

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