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Report - 북한최고인민회의 결과.lnk

Generic Malware Downloader Antivirus HWP PS PostScript Create Service Socket DGA Http API ScreenShot Escalate priviledges Steal credential PWS Sniff Audio HTTP DNS Code injection Internet API FTP KeyLogger P2P Hide_URL AntiDebug AntiVM Lnk Format MSOffice
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ScreenShot
Created 2023.10.27 19:47 Machine s1_win7_x6401
Filename 북한최고인민회의 결과.lnk
Type MS Windows shortcut, Has Description string, Has command line arguments, Icon number=1, ctime=Sun Dec 31 15:32:08 1600, mtime=Sun Dec 31 15:32:08 1600, atime=Sun Dec 31 15:32:08 1600, length=0, window=hidenormalshowminimized
AI Score Not founds Behavior Score
11.2
ZERO API file : clean
VT API (file) 28 detected (WinLNK, MulDrop24, Pantera, gen119, a variant of Generik, JDNURFO, LnkDrop, Static AI, Suspicious LNK, ai score=84, PowerShell, MoniSaint, Detected, S2373, Link, Crafted, BondatN)
md5 cc96ba45dd2b6a6d7aa300d77e49c095
sha256 315728c3ea5e769a4cc84cbaf611ee8790fe39b94a6e94ee257c63992d1487c9
ssdeep 1536:vJAzG8UqVmtD/xE8gANk+BPXXzvEL0hg3R9b:vsG8UqVmtLxEUk+DvNgR9b
imphash
impfuzzy
  Network IP location

Signature (25cnts)

Level Description
danger The process powershell.exe wrote an executable file to disk which it then attempted to execute
warning File has been identified by 28 AntiVirus engines on VirusTotal as malicious
watch Creates a suspicious Powershell process
watch Deletes executed files from disk
watch Network communications indicative of a potential document or script payload download was initiated by the process powershell.exe
watch One or more non-whitelisted processes were created
watch Resumed a suspended thread in a remote process potentially indicative of process injection
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 shortcut to an executable file
notice Creates a suspicious process
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice Looks up the Dropbox cloud service
notice Poweshell is sending data to a remote host
notice URL downloaded by powershell script
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 Uses Windows APIs to generate a cryptographic key

Rules (51cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Antivirus Contains references to security software binaries (download)
watch Antivirus Contains references to security software binaries (upload)
watch Network_Downloader File Downloader memory
watch Win32_HWP_PostScript_Zero Detect a HWP with embedded Post Script code binaries (download)
watch Win32_HWP_PostScript_Zero Detect a HWP with embedded Post Script code 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 hide_url_link Hide url link scripts
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 HWP_file_format HWP Document File binaries (download)
info HWP_file_format HWP Document File binaries (upload)
info Is_DotNET_DLL (no description) binaries (download)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info lnk_file_format Microsoft Windows Shortcut File Format binaries (download)
info lnk_file_format Microsoft Windows Shortcut File Format binaries (upload)
info Lnk_Format_Zero LNK Format binaries (download)
info Lnk_Format_Zero LNK Format binaries (upload)
info Microsoft_Office_File_Zero Microsoft Office File binaries (download)
info Microsoft_Office_File_Zero Microsoft Office File binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PowerShell PowerShell script scripts
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory

Network (2cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
dl.dropboxusercontent.com
whois
US DROPBOX 162.125.84.15 malware
162.125.84.15
whois
US DROPBOX 162.125.84.15 malware

Suricata ids

ET INFO DropBox User Content Domain (dl .dropboxusercontent .com in TLS SNI)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)

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