Report - putty.exe

email stealer Generic Malware Admin Tool (Sysinternals etc ...) UPX Malicious Library Malicious Packer DNS Socket Escalate priviledges KeyLogger Code injection Downloader persistence AntiDebug AntiVM PE File .NET EXE PE32 PE64 OS Processor Check DLL
ScreenShot
Created 2021.08.03 09:10 Machine s1_win7_x6401
Filename putty.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
13.6
ZERO API file : malware
VT API (file) 26 detected (Malicious, high confidence, Bulz, AveMaria, confidence, 100%, Kryptik, Eldorado, ACEV, Fareit, Noon, XBI1FY, score, ai score=81, R06CH07H221, Static AI, Malicious PE, susgen, HwMAueAA)
md5 0cfe251e0b61bbc87656f52defad4c53
sha256 db531d6e969f16a9318224e16a18f3314fa75d0eaad90fc9a805f10d098d67c9
ssdeep 12288:hdJnZDHQg/eZ0EaMEH+a2C9mIzUewRTCABR4x9kB3AHwmV2h1mFbiwN2:Pw05H+NC9mIzUewRTC0Ui3APmY
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (30cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 26 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Attempts to remove evidence of file being downloaded from the Internet
watch Code injection by writing an executable or DLL to the memory of another process
watch Installs itself for autorun at Windows startup
watch Potential code injection by writing to the memory of another process
watch Putty Files
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 created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice An executable file was downloaded by the process images.exe
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Checks whether any human activity is being performed by constantly checking whether the foreground window changed
notice Creates a suspicious process
notice Creates executable files on the filesystem
notice Executes one or more WMI queries
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Terminates another process
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 Collects information to fingerprint the system (MachineGuid
info Command line console output was observed
info Queries for the computername

Rules (29cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
warning infoStealer_emailClients_Zero email clients info stealer memory
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (download)
notice Code_injection Code injection with CreateRemoteThread in a remote process memory
notice Escalate_priviledges Escalate priviledges memory
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice Persistence Install itself for autorun at Windows startup 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_EXE (no description) binaries (upload)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info IsPE64 (no description) binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
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

Network (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://hutyrtit.ydns.eu/microD.exe NL LoveServers LTD 203.159.80.165 malware
hutyrtit.ydns.eu NL LoveServers LTD 203.159.80.165 malware
sdafsdffssffs.ydns.eu NL LoveServers LTD 203.159.80.186 clean
203.159.80.165 NL LoveServers LTD 203.159.80.165 clean
203.159.80.186 NL LoveServers LTD 203.159.80.186 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