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o4ddfp9ao.exe

Xin Zhou

The executable o4ddfp9ao.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 dgkytklfjrqkb.cloudfront.net.
Publisher:
Xin Zhou  (signed and verified)

MD5:
8a6c65104410a6761fc984ab2e9fd1b6

SHA-1:
ccf93eb093273ee522d45776541d278a0110f50e

SHA-256:
286d16fecff667dfea198a8001f43041e9f533b9cb9c87af0e9d10ee601752f2

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
5/7/2025 12:10:34 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.12.16.13

File size:
409.5 KB (419,376 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\o4ddfp9ao.exe

Digital Signature
Signed by:
Xin Zhou

Authority:
thawte, Inc.

Valid from:
12/8/2016 4:00:00 PM

Valid to:
3/22/2017 4:59:59 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:
21E89FFE9CD0EE79FC3C330FA43474D0

File PE Metadata
Compilation timestamp:
12/11/2016 6:22:08 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x4CA2

Entry point:
E8, 08, 2F, 00, 00, E9, 2D, 8F, 00, 00, 55, 8B, EC, 8B, 45, 08, C7, 01, 68, E1, 45, 00, 8B, 00, 89, 41, 04, 8B, C1, C6, 41, 08, 00, 5D, C2, 08, 00, 55, 8B, EC, 83, 3D, 3C, 17, 46, 00, 00, B8, 38, 17, 46, 00, 74, 10, 8B, 4D, 08, 39, 08, 74, 0D, 83, C0, 08, 83, 78, 04, 00, 75, F3, 33, C0, 5D, C3, 8B, 40, 04, 5D, C3, 55, 8B, EC, 83, EC, 0C, 8B, 45, 08, 8D, 4D, F4, 89, 45, 08, 8D, 45, 08, 50, E8, 4A, D6, FF, FF, 68, 2C, 2E, 46, 00, 8D, 45, F4, C7, 45, F4, 44, 16, 46, 00, 50, E8, CB, CF, FF, FF, CC, 55, 8B, EC...
 
[+]

Entropy:
7.8092  (probably packed)

Code size:
367.5 KB (376,320 bytes)

The file o4ddfp9ao.exe has been seen being distributed by the following URL.

http://dgkytklfjrqkb.cloudfront.net/.../yomz.exe

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