Report - lbcr.exe

PWS[m] RAT Downloader UPX Create Service DGA Socket ScreenShot DNS Internet API Code injection Sniff Audio HTTP Steal credential KeyLogger P2P Escalate priviledges FTP Http API AntiDebug AntiVM PE32 .NET EXE PE File
ScreenShot
Created 2023.01.20 10:00 Machine s1_win7_x6403
Filename lbcr.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
9.6
ZERO API file : malware
VT API (file)
md5 dafc8e7ccd381af36f19267a2a9b3f9b
sha256 3cded3354fbcfaad7112c599b3622680a632e601602ea4f5faa07a6bcc8cbeaf
ssdeep 6144:58CS6KWJ0XJWcPZ1PiqbeiS8XDMs9HHCUA:KC9IgWrPiN0YEHHFA
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
watch Communicates with host for which no DNS query was performed
watch Disables Windows' Task Manager
watch Installs itself for autorun at Windows startup
watch Removes the Shadow Copy to avoid recovery of the system
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Uses suspicious command line tools or Windows utilities
notice A process attempted to delay the analysis task.
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates a shortcut to an executable file
notice Creates a suspicious process
notice Drops an executable to the user AppData folder
notice Foreign language identified in PE resource
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Uses Windows utilities for basic Windows functionality
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Command line console output was observed
info Queries for the computername
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (41cnts)

Level Name Description Collection
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
notice Code_injection Code injection with CreateRemoteThread in a remote process memory
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice local_credential_Steal Steal credential memory
notice Network_DGA Communication using DGA memory
notice Network_DNS Communications use DNS memory
notice Network_FTP Communications over FTP memory
notice Network_HTTP Communications over HTTP memory
notice Network_P2P_Win Communications over P2P network memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
notice Sniff_Audio Record Audio memory
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info antisb_threatExpert Anti-Sandbox checks for ThreatExpert memory
info Check_Dlls (no description) memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerCheck__RemoteAPI (no description) memory
info DebuggerException__ConsoleCtrl (no description) memory
info DebuggerException__SetConsoleCtrl (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_EXE (no description) binaries (download)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
82.115.223.9 RU AO MIRS 82.115.223.9 mailcious
62.204.41.121 Unknown 62.204.41.121 malware
77.73.134.27 KZ Fibre Optix LLC 77.73.134.27 malware
172.67.220.72 US CLOUDFLARENET 172.67.220.72 clean
85.209.135.29 DE CMCS 85.209.135.29 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