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The MicrosoftOffice_InstallationComponent_zywz_a02.exe (Microsoft Office) File Analysis

Updated 29 days ago
Checked by Malaware Check
MicrosoftOffice_InstallationComponent_zywz_a02.exe

Technical Analysis

File Name MicrosoftOffice_InstallationComponent_zywz_a02.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Scanner Version 1.0.216.174
Database Version 2025-05-08 04:00:28 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
4,940,640
File Size (bytes)
2025-05-08
Analysis Date

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File Identification

Hash Type Value Action
MD5
5dde6673464f167f2edad6c044b128b3
SHA1
245cf6d472ffb0a5265ece69e487dedab7d3d295
SHA256
511bcbbc49e8045b2cd6be4b12574998abca05f405adfd788c56cdacc5fb0a5e
SHA512
334b1d2550c4459b46a2f28f86bd3eef1aed81c982b02653e1e7a4d89822a09255f769cadbcbf710d10447ae0ff8f75646318880eec10aedab2ff3a964aa1a61
ImpHash
5c54d262ddb4d9aebd0a2811c30517be

PE Analysis

Basic Information

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Icon
Hash: ccbbd7d717c4cbcd5e632e9e3845307a
Fuzzy: d9f2dbe42b341452e650eba29ce188a7
dHash: 1e3331393131311f
Image Base 0x00400000
Entry Point 0x00fc56a0
Compilation Time 2020-11-17 07:43:30
Checksum 0x004c5a2e (Actual: 0x004c5a2e)
OS Version 5.1
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Digital Signature OK
Imports 13 libraries
Exports 0 functions
Resources 4 Resources
Sections 3 Sections

Version Information

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CompanyName Beijing Yundong Zhixiao Network Technology Co. , Ltd.
FileDescription Microsoft Office
FileVersion 4.2.0.10
LegalCopyright Beijing Yundong Zhixiao Network Technology Co. , Ltd.
OriginalFilename Office.exe
ProductName Microsoft Office
ProductVersion 4.2.0.10
Translation 0x0004 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
UPX0 0x00001000 7,479,296 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
UPX1 0x00723000 4,861,952 bytes 4,860,416 bytes 7.93 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 8181FB2600F2FBA7B9A91596C970BD5E
.rsrc 0x00bc6000 73,728 bytes 70,656 bytes 2.91 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE EE25C468982786D83EFE384DA0514D55
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

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Total Resources: 4 (69,113 bytes)
Resource Type Count Total Size Percentage
RT_ICON 1 67,624 bytes
97.8%
RT_GROUP_ICON 1 20 bytes
0%
RT_VERSION 1 820 bytes
1.2%
RT_MANIFEST 1 649 bytes
0.9%

Certificate Chain Analysis

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Certificate Information
Product Microsoft Office
Description Microsoft Office
File Version 4.2.0.10
Original Name Office.exe
Signing Date 07:49 AM 11/17/2020 (1662 days ago)
Verification Status Signed
Signers Beijing Yundong Zhixiao Network Technology Co. , Ltd.; DigiCert EV Code Signing CA (SHA2); DigiCert
Counter Signers Symantec SHA256 TimeStamping Signer - G3; Symantec SHA256 TimeStamping CA; VeriSign Universal Root Certification Authority
Copyright Beijing Yundong Zhixiao Network Technology Co. , Ltd.
Certificate Chain Summary
DigiCert High Assurance EV Root CA #1 Primary
Validity Period: 2006-11-10 00:00:00 → 2031-11-10 00:00:00
Signature Algorithm: sha1RSA
Serial Number: 02 AC 5C 26 6A 0B 40 9B 8F 0B 79 F2 AE 46 25 77
Beijing Yundong Zhixiao Network Technology Co. , Ltd. #2 Chain
Validity Period: 2020-04-29 00:00:00 → 2022-05-03 12:00:00
Signature Algorithm: sha256RSA
Serial Number: 06 07 35 2A F8 8B C6 7B 29 13 38 AE 14 4D 96 FE
DigiCert EV Code Signing CA (SHA2) #3 Chain
Validity Period: 2012-04-18 12:00:00 → 2027-04-18 12:00:00
Signature Algorithm: sha256RSA
Serial Number: 03 F1 B4 E1 5F 3A 82 F1 14 96 78 B3 D7 D8 47 5C
Symantec SHA256 TimeStamping CA #4 Chain
Validity Period: 2016-01-12 00:00:00 → 2031-01-11 23:59:59
Signature Algorithm: sha256RSA
Serial Number: 7B 05 B1 D4 49 68 51 44 F7 C9 89 D2 9C 19 9D 12
Symantec SHA256 TimeStamping Signer - G3 #5 Chain
Validity Period: 2017-12-23 00:00:00 → 2029-03-22 23:59:59
Signature Algorithm: sha256RSA
Serial Number: 7B D4 E5 AF BA CC 07 3F A1 01 23 04 22 41 4D 12

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
Certificate Verification Status

OK

Remember: This is Result of Online Virus Scanner

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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