Report - kent.ps1

Client SW User Data Stealer Backdoor RemcosRAT Formbook browser info stealer Hide_EXE Generic Malware Google Chrome User Data Downloader Malicious Library Confuser .NET Antivirus Create Service Socket ScreenShot Escalate priviledges PWS Sniff Audio DNS Co
ScreenShot
Created 2025.03.13 09:49 Machine s1_win7_x6403
Filename kent.ps1
Type ASCII text, with very long lines, with CRLF line terminators
AI Score Not founds Behavior Score
12.6
ZERO API file : malware
VT API (file) 11 detected (Krypt, Attribute, HighConfidence, Zapchast, PSDrop, Detected, Wacatac, Encpe)
md5 432719ce1459add67ebe4c01b47310f2
sha256 5d0a63edb817bb0cb0a5029e9a7f7a88bca050e94d5d97c5d975cbd4d0757606
ssdeep 1536:98R0LVy/rBdFyFe7w4i+RGhCvQ6IEg4HbR:9q0WPpw4i+RGhCvDIEg4Hd
imphash
impfuzzy
  Network IP location

Signature (23cnts)

Level Description
danger The process powershell.exe wrote an executable file to disk which it then attempted to execute
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch Communicates with host for which no DNS query was performed
watch Drops a binary and executes it
watch File has been identified by 11 AntiVirus engines on VirusTotal as malicious
watch One or more non-whitelisted processes were created
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process attempted to delay the analysis task.
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
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 Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger

Rules (35cnts)

Level Name Description Collection
danger Client_SW_User_Data_Stealer Client_SW_User_Data_Stealer memory
danger Win_Backdoor_RemcosRAT Win Backdoor RemcosRAT memory
danger Win_Trojan_Formbook_Zero Used Formbook binaries (upload)
warning Generic_Malware_Zero Generic Malware binaries (download)
warning hide_executable_file Hide executable file binaries (upload)
warning infoStealer_browser_Zero browser info stealer memory
watch Antivirus Contains references to security software binaries (download)
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch ConfuserEx_Zero Confuser .NET binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Network_Downloader File Downloader memory
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 Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
notice Sniff_Audio Record Audio memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_DLL (no description) binaries (download)
info Is_DotNET_EXE (no description) binaries (download)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory

Network (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://176.65.144.3/dev/kent.exe Unknown 176.65.144.3 mailcious
198.23.227.212 US AS-COLOCROSSING 198.23.227.212 clean
176.65.144.3 Unknown 176.65.144.3 malware
196.251.83.183 Unknown 196.251.83.183 clean

Suricata ids



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