Report - windows_update_client.exe

Malicious Library .NET framework(MSIL) UPX PE32 PE File .NET EXE OS Processor Check
ScreenShot
Created 2023.11.09 17:45 Machine s1_win7_x6403
Filename windows_update_client.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
1.2
ZERO API
VT API (file)
md5 2632513ef381e54f4b7067258c006f9e
sha256 c54bb2c2ee3a6b72ad7867b134d3c257ce340c014d8d77fadc55aaa1fe225a72
ssdeep 49152:jvHI22SsaNYfdPBldt698dBcjHhMxNESEck/i8LoGdNOTHHB72eh2NT:jvo22SsaNYfdPBldt6+dBcjHixPC
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (4cnts)

Level Description
notice Allocates read-write-execute memory (usually to unpack itself)
notice The binary likely contains encrypted or compressed data indicative of a packer
info Checks amount of memory in system
info Checks if process is being debugged by a debugger

Rules (7cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch UPX_Zero UPX packed file binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



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