Report - fari2021.pdf

RAT PWS .NET framework Generic Malware Malicious Packer Malicious Library PE File .NET EXE PE32
ScreenShot
Created 2021.09.25 11:22 Machine s1_win7_x6401
Filename fari2021.pdf
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
11.6
ZERO API file : malware
VT API (file) 50 detected (malicious, high confidence, score, YakbeexMSIL, Unsafe, Save, confidence, TrojanPSW, Mintluks, DeepScan, PasswordStealerA, Kryptik, Eldorado, Attribute, HighConfidence, jchxff, PWSX, Eacm, ATRAPS, RatNET, Artemis, kcloud, SnakeKeylogger, R433068, Generic PWS, ai score=100, AgentTesla, R002C0DIN21, Static AI, Malicious PE, 100%, ZemsilF, hm0@a0JmgVd, susgen)
md5 f23052e40d7b03ac4fec8fb66f6acdea
sha256 a3ad4554c582908654304ad34c10e5a00cfbe0c06d28117b17fb4acabc8fea72
ssdeep 3072:OhuxyaDuSgcq2WiL1uWTbCVePgYwBeTnbY:Zw9hiLtbUePgOTb
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
danger File has been identified by 50 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
watch Attempts to identify installed AV products by installation directory
watch Creates a windows hook that monitors keyboard input (keylogger)
watch Harvests credentials from local email clients
watch Harvests credentials from local FTP client softwares
watch Harvests information related to installed instant messenger clients
watch Looks for the Windows Idle Time to determine the uptime
watch Makes SMTP requests
notice A process created a hidden window
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 Connects to a Dynamic DNS Domain
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Looks up the external IP address
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Steals private information from local Internet browsers
notice Uses Windows utilities for basic Windows functionality
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 One or more processes crashed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (8cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch Malicious_Packer_Zero Malicious Packer 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 PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (8cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://checkip.dyndns.org/ US DYNDNS 216.146.43.71 clean
https://freegeoip.app/xml/175.208.134.150 US CLOUDFLARENET 172.67.188.154 clean
freegeoip.app US CLOUDFLARENET 172.67.188.154 clean
mail.privateemail.com US NAMECHEAP-NET 198.54.122.60 clean
checkip.dyndns.org US DYNDNS 216.146.43.71 clean
216.146.43.71 US DYNDNS 216.146.43.71 clean
172.67.188.154 US CLOUDFLARENET 172.67.188.154 clean
198.54.122.60 US NAMECHEAP-NET 198.54.122.60 clean

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