Report - PolymodXT.exe#test_rise_sharp

UPX Malicious Library Malicious Packer .NET framework(MSIL) PE File PE32 .NET EXE OS Processor Check ZIP Format PNG Format DLL
ScreenShot
Created 2023.09.15 08:01 Machine s1_win7_x6403
Filename PolymodXT.exe#test_rise_sharp
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
10.8
ZERO API file : malware
VT API (file)
md5 686c33f353aaa476f68a8e124cf1d6af
sha256 dc48bc839225b4993d25e2aa787feb4a84c5701b605cc5556be20c4e2026b598
ssdeep 12288:mDjwnRpIL85mX7kiaGnlUEmrlJC/4ZDPA4a272dpUQIxEdjeOJWruqs/g0BOPIMG:mn5rnafJ
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
watch A process attempted to delay the analysis task.
watch Appends a known CryptoMix ransomware file extension to files that have been encrypted
watch Attempts to access Bitcoin/ALTCoin wallets
watch Attempts to create or modify system certificates
watch Collects information about installed applications
watch Communicates with host for which no DNS query was performed
watch Harvests credentials from local email clients
watch Looks for the Windows Idle Time to determine the uptime
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 Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice Executes one or more WMI queries
notice Executes one or more WMI queries which can be used to identify virtual machines
notice Looks up the external IP address
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Queries for potentially installed applications
notice Steals private information from local Internet browsers
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Collects information to fingerprint the system (MachineGuid
info Queries for the computername
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (15cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch UPX_Zero UPX packed file binaries (download)
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 IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info PNG_Format_Zero PNG Format binaries (download)
info zip_file_format ZIP file format binaries (download)

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://apps.identrust.com/roots/dstrootcax3.p7c US Akamai International B.V. 23.67.53.17 clean
https://ipinfo.io/widget/demo/175.208.134.152 US GOOGLE 34.117.59.81 clean
ipinfo.io US GOOGLE 34.117.59.81 clean
23.32.56.72 US AKAMAI-AS 23.32.56.72 clean
34.117.59.81 US GOOGLE 34.117.59.81 clean
171.22.28.214 DE CMCS 171.22.28.214 malware

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