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yesfileservice.exe

BankPrime.Corp

It runs as a separate (within the context of its own process) windows Service named “Yesfile Download Manager”. The file has been seen being downloaded from webfile.yesfile.com.
Publisher:
BankPrime.Corp  (signed and verified)

MD5:
dad7ee623dd2d41b886248f197e9a0da

SHA-1:
eb133f246814b62d3392dfa66e4c212b2bd53117

SHA-256:
9ee5d5ddb525c797b069531ae34fa8ac2dcafce8e35d588cb695c1344e2a54b2

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
1/9/2025 6:39:05 PM UTC  (today)

File size:
87.4 KB (89,512 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\yesfileservice.exe

Digital Signature
Signed by:
BankPrime.Corp

Authority:
Symantec Corporation

Valid from:
10/6/2015 9:00:00 AM

Valid to:
1/5/2018 8:59:59 AM

Subject:
CN=BankPrime.Corp, O=BankPrime.Corp, L=Guro-gu, S=Seoul, C=KR

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
665BECF936AEFDD2FDE006DA1CF1D783

File PE Metadata
Compilation timestamp:
10/10/2016 10:11:53 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
9.0

CTPH (ssdeep):
1536:56IY8go4pmIP2uU0cluuiZA+dLCwmJbrxZjEgQfrQS:j7gjzeik3vjEgQfrQS

Entry address:
0x3FF8

Entry point:
E8, 24, 50, 00, 00, E9, A4, FE, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 28, 41, 41, 00, 89, 0D, 24, 41, 41, 00, 89, 15, 20, 41, 41, 00, 89, 1D, 1C, 41, 41, 00, 89, 35, 18, 41, 41, 00, 89, 3D, 14, 41, 41, 00, 66, 8C, 15, 40, 41, 41, 00, 66, 8C, 0D, 34, 41, 41, 00, 66, 8C, 1D, 10, 41, 41, 00, 66, 8C, 05, 0C, 41, 41, 00, 66, 8C, 25, 08, 41, 41, 00, 66, 8C, 2D, 04, 41, 41, 00, 9C, 8F, 05, 38, 41, 41, 00, 8B, 45, 00, A3, 2C, 41, 41, 00, 8B, 45, 04, A3, 30, 41, 41, 00, 8D, 45, 08, A3, 3C, 41, 41...
 
[+]

Entropy:
6.4528

Code size:
55 KB (56,320 bytes)

Service
Display name:
Yesfile Download Manager

Service name:
YesfileService

Type:
Win32OwnProcess


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

http://webfile.yesfile.com/app/yesfile/setup/.../YesfileService.exe

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