Report - kakashi_cry.exe

AsyncRAT backdoor PWS .NET framework .NET EXE PE File PE32
ScreenShot
Created 2021.05.23 10:46 Machine s1_win7_x6401
Filename kakashi_cry.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score Not founds Behavior Score
6.4
ZERO API file : clean
VT API (file)
md5 62c59ba0375eebf49b4d80c290e69646
sha256 be0dc158152fc2de2e3552779884f45e7ac9cb1a62456d23d0a6ee78e357c757
ssdeep 98304:wyp9H4BTu7pLwwhfAqVo9Eo7bfkNxU+1Nhga4a/ZSmAC9:wyHIu+wlhNqa4a/ZSmA
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (15cnts)

Level Description
watch A process attempted to delay the analysis task.
watch Attempts to remove evidence of file being downloaded from the Internet
watch Installs itself for autorun at Windows startup
watch Looks for the Windows Idle Time to determine the uptime
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 Creates a suspicious process
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 Uses Windows utilities for basic Windows functionality
info Checks amount of memory in system
info Checks if process is being debugged by a debugger

Rules (5cnts)

Level Name Description Collection
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 (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://www.bing.com/ US MICROSOFT-CORP-MSN-AS-BLOCK 204.79.197.200 clean
www.google.com US GOOGLE 172.217.161.36 clean
142.250.199.68 US GOOGLE 142.250.199.68 clean
142.250.207.68 US GOOGLE 142.250.207.68 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