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dam_ay.exe

Beijing Caiyunshidai Technology Co., Ltd.

The application dam_ay.exe by Beijing Caiyunshidai Technology Co. 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:
Beijing Caiyunshidai Technology Co., Ltd.  (signed and verified)

MD5:
e66faeccc4be39b99e354510062405d6

SHA-1:
d1324f341293594eda05b0afc9874a48675cde4c

SHA-256:
8d40508c17fc6ea16e81a9a86caf551c3443847c51031ae3edcec8041fe4e978

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/17/2025 5:04:31 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.ELEX.SpeedSearch (M)
16.12.17.11

File size:
404 KB (413,672 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Beijing Caiyunshidai Technology Co., Ltd.

Authority:
thawte, Inc.

Valid from:
12/7/2016 4:00:00 PM

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

Subject:
CN="Beijing Caiyunshidai Technology Co., Ltd.", O="Beijing Caiyunshidai Technology Co., Ltd.", L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
08E3A9E53F048C1FE92FADD5209CA109

File PE Metadata
Compilation timestamp:
11/23/2016 4:44:01 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x355F

Entry point:
E8, F1, 11, 00, 00, E9, 6A, 85, 00, 00, 55, 8B, EC, 56, 8B, 75, 08, 85, F6, 75, 09, 56, E8, 72, A0, 00, 00, 59, EB, 2F, 56, E8, 28, 68, 00, 00, 59, 85, C0, 74, 05, 83, C8, FF, EB, 1F, F7, 46, 0C, 00, 40, 00, 00, 74, 14, 56, E8, 6A, F6, FF, FF, 50, E8, 7B, F5, FF, FF, F7, D8, 59, 59, 1B, C0, EB, 02, 33, C0, 5E, 5D, C3, 56, 8B, F1, 80, 7E, 08, 00, 74, 09, FF, 76, 04, E8, 9B, 78, 00, 00, 59, 83, 66, 04, 00, C6, 46, 08, 00, 5E, C3, 55, 8B, EC, 8B, 45, 08, 85, C0, 78, 21, 83, F8, 02, 7E, 0D, 83, F8, 03, 75, 17...
 
[+]

Entropy:
7.8212  (probably packed)

Code size:
360 KB (368,640 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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