Report - Contract-4.msi

Malicious Library MSOffice File CAB OS Processor Check
ScreenShot
Created 2023.10.10 10:10 Machine s1_win7_x6401
Filename Contract-4.msi
Type Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, MSI Installer, Code page: 1252, Title: Microsoft Windows Operating System - UNREGISTERED - Wrapped using MSI Wrapper from www.exemsi.com 10.0.19041.685, Subject: Microsoft Wind
AI Score Not founds Behavior Score
4.8
ZERO API file : clean
VT API (file) 1 detected (ccnc)
md5 1b6f948f740eb0426204a9b15472b194
sha256 ffd3edf21e63fee92fb9babbf56ccaddf2d78f58caeb6e6985a25aa4b8c519f1
ssdeep 12288:3tvRQ+gjpjegGdo8rgLKxBTi9byLw2wHvHgU3qfrbDW:3tncpVGPrgtyLHw33qjbD
imphash
impfuzzy
  Network IP location

Signature (13cnts)

Level Description
watch One or more of the buffers contains an embedded PE file
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice File has been identified by one AntiVirus engine on VirusTotal as malicious
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Sends data using the HTTP POST Method
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Queries for the computername

Rules (4cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
info CAB_file_format CAB archive file binaries (upload)
info Microsoft_Office_File_Zero Microsoft Office File binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)

Network (10cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://piret-wismann.com:2351/njsswd Unknown 162.33.179.65 clean
http://piret-wismann.com:8080/ Unknown 162.33.179.65 clean
http://piret-wismann.com:2351/ Unknown 162.33.179.65 clean
http://www.ssl.com/repository/SSLcom-RootCA-EV-RSA-4096-R2.crt US AMAZON-AES 54.174.96.153 clean
http://piret-wismann.com:2351/cztngt Unknown 162.33.179.65 clean
http://www.ssl.com/repository/SSLcomRootCertificationAuthorityRSA.crt US AMAZON-AES 54.174.96.153 clean
piret-wismann.com Unknown 162.33.179.65 clean
www.ssl.com US AMAZON-AES 54.236.82.84 clean
162.33.179.65 Unknown 162.33.179.65 clean
54.236.82.84 US AMAZON-AES 54.236.82.84 clean

Suricata ids



Similarity measure (PE file only) - Checking for service failure