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crypto.dll

Beijing Yu Jin Cheng Technology Co., Ltd.

The module crypto.dll by Beijing Yu Jin Cheng 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. It is also typically executed from the user's temporary directory.
Publisher:
Beijing Yu Jin Cheng Technology Co., Ltd.  (signed and verified)

MD5:
95400c57ec4e8ac3594400fd522d0059

SHA-1:
9e9af026a27150d4d7b25e97c682ccadb808e9c0

SHA-256:
f122d416240b44b745a5e4874b221bf55a110d923bfe980af6d70889d420d901

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/5/2024 6:36:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.9.23.18

File size:
42 KB (43,040 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\crypto.dll

Digital Signature
Signed by:
Beijing Yu Jin Cheng Technology Co., Ltd.

Authority:
WoSign CA Limited

Valid from:
8/19/2015 1:47:31 PM

Valid to:
12/30/2016 1:47:31 PM

Subject:
CN="Beijing Yu Jin Cheng Technology Co., Ltd.", O="Beijing Yu Jin Cheng Technology Co., Ltd.", L=Beijing, S=Beijing, C=CN

Issuer:
CN=WoSign Class 3 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
5101E5E4803BA58F107087F0934A122F

File PE Metadata
Compilation timestamp:
11/11/2014 7:12:53 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
768:mHUITyl7T/jsnCd0jlHw7ohFQqIiEDQun6qxNPvGQppsE+pboJKL:mHU3l3/jsnPJ9OqA7Pvtps+KL

Entry address:
0x1AD5

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 4A, 1B, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, CC, CC, CC, CC, CC, CC, CC, CC, 51, 8D, 4C, 24, 04, 2B, C8, 1B, C0, F7, D0, 23, C8, 8B, C4, 25, 00, F0, FF, FF, 3B, C8, 72, 0A, 8B, C1, 59, 94, 8B, 00, 89, 04, 24, C3, 2D, 00, 10, 00, 00, 85, 00, EB, E9, CC, CC, CC, CC, CC, 8B, 44, 24, 0C, 53, 85, C0, 74, 52, 8B, 54, 24, 08, 33, DB, 8A, 5C, 24, 0C, F7, C2, 03, 00, 00, 00, 74, 16, 8A, 0A, 83, C2, 01, 32, CB, 74, 72, 83...
 
[+]

Entropy:
6.3990

Code size:
19.5 KB (19,968 bytes)

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