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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:
8ab8266096113a2efc3828d27eba41f4

SHA-1:
eb86e6d9ae207d538434833e4aca037056509c81

SHA-256:
4b38443e758e5bc36b9c12983aa4c076cebf72220cf2081aec05b4e34f3110c2

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
5/3/2025 8:09:26 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.1.9.18

File size:
415.2 KB (425,176 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Xin Zhou

Authority:
thawte, Inc.

Valid from:
12/29/2016 1:00:00 AM

Valid to:
3/23/2017 12:59:59 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:
4FD78381F22BA1D497EAD69F95160D92

File PE Metadata
Compilation timestamp:
12/27/2016 1:29:44 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0xA22A

Entry point:
E8, 40, 92, FF, FF, E9, 1A, 3F, 00, 00, 55, 8B, EC, 56, 8B, F1, C7, 06, 08, E2, 45, 00, E8, AB, FF, FF, FF, F6, 45, 08, 01, 74, 07, 56, E8, 38, 8B, FF, FF, 59, 8B, C6, 5E, 5D, C2, 04, 00, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, 83, 66, 04, 00, C7, 06, 58, F4, 45, 00, C6, 46, 08, 00, E8, 49, BC, FF, FF, 8B, C6, 5E, 5D, C2, 04, 00, 55, 8B, EC, 8B, 45, 08, A3, 98, 6E, 46, 00, 5D, C3, 55, 8B, EC, FF, 15, 70, E0, 45, 00, 6A, 01, A3, E4, 66, 46, 00, E8, E5, F3, FF, FF, FF, 75, 08, E8, 2E, 90, FF, FF, 83, 3D, E4, 66...
 
[+]

Entropy:
7.8096  (probably packed)

Code size:
372 KB (380,928 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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