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msosync.exe

Microsoft Office 2013

While the file properties state the file is developed by 'Microsoft Corporation', this is not the case and it is designed just to look like a legitimate Microsoft system file. The executable msosync.exe, “Microsoft Office Document Cache” has been detected as malware by 5 anti-virus scanners. It runs as a scheduled task under the Windows Task Scheduler triggered to execute each time a user logs in.
Publisher:
Microsoft Corporation*  (Invalid match)

Product:
Microsoft Office 2013

Description:
Microsoft Office Document Cache

Version:
15.0.4420.1017

MD5:
03e8b689e1f98ae78d17fabf6962ff6e

SHA-1:
96fa944872e6c8e0cd678a7ae289c07add6de645

SHA-256:
8b7c8f79ec78175d1840f9b640b53304c0a758a5992a51d699dd2502f72477eb

Scanner detections:
5 / 68

Status:
Malware

Analysis date:
4/29/2024 5:03:29 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Madangel
160917-0

Clam AntiVirus
Win.Downloader.Small-1966
0.98/23207

Dr.Web
Win32.Angel
9.0.1.05190

ESET NOD32
Win32/Madang.A virus
6.3.12010.0

F-Prot
W32/Small.JD
4.6.5.141

File size:
442.4 KB (453,007 bytes)

Product version:
15.0.4420.1017

Original file name:
msosync.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\microsoft office\office15\msosync.exe

File PE Metadata
Compilation timestamp:
9/30/2012 12:37:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.10

Entry address:
0x71A00

Entry point:
60, 78, 03, 79, 01, EB, E8, 74, 11, 00, 00, 8B, 74, 24, 20, E8, 11, 00, 00, 00, 61, 78, 03, 79, 01, EB, 68, 0A, 8D, 40, 00, C3, 78, 03, 79, 01, EB, 59, E8, 48, 0E, 00, 00, 81, E6, 00, F0, FF, FF, 78, 03, 79, 01, EB, 81, EE, 00, 10, 00, 00, 66, 81, 3E, 4D, 5A, 78, 03, 79, 01, EB, 75, EE, 0F, B7, 7E, 3C, 03, FE, 8B, 6F, 78, 03, EE, 8B, 5D, 20, 03, DE, 33, C0, 8B, D6, 83, C3, 04, 40, 8B, 3B, 03, FA, E8, 0F, 00, 00, 00, 47, 65, 74, 50, 72, 6F, 63, 41, 64, 64, 72, 65, 73, 73, 00, 5E, 33, C9, B1, 0F, FC, F3, A6...
 
[+]

Entropy:
3.7833

Code size:
50 KB (51,200 bytes)

Scheduled Task
Task name:
Microsoft Office 15 Sync Maintenance

Trigger:
Logon (Runs on logon)

Description:
Lightweight task keeps Microsoft Office Document Cache in good shape. Disabling this task may lead to unexpected issues when working with documents fr


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