Report - nputty.exe

Generic Malware DNS AntiDebug AntiVM PE32 .NET EXE PE File
ScreenShot
Created 2021.07.27 17:56 Machine s1_win7_x6402
Filename nputty.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
14.8
ZERO API file : clean
VT API (file) 14 detected (malicious, high confidence, Unsafe, Save, GenKryptik, FHZP, Generic ML PUA, Static AI, Malicious PE, AgentTesla, ZemsilF, Nm0@a0nCjIl, FormBook, susgen, confidence, 100%, QVM03)
md5 2d5e1b62b58404ac5040f7454b9a73fe
sha256 871e94eda4712d5e5549cdb71e84f794baa7fe2b52ba191ecbbcd576549fd94d
ssdeep 12288:9V1gsD1nB3pSp0Yxd64DOKLLX6liI+aKCDd8bognRUSaHNKnj3O:9VKsV/Sp0q62BL+caTDcot1kj+
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (30cnts)

Level Description
danger Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
watch A process attempted to delay the analysis task.
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 File has been identified by 14 AntiVirus engines on VirusTotal as malicious
watch Looks for the Windows Idle Time to determine the uptime
watch Manipulates memory of a non-child process indicative of process injection
watch One or more of the buffers contains an embedded PE file
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 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 One or more potentially interesting buffers were extracted
notice Potentially malicious URLs were found in the process memory dump
notice Terminates another process
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 One or more processes crashed
info Queries for the computername

Rules (13cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
notice Network_DNS Communications use DNS 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 IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory

Network (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
tryweaswweee.ydns.eu Unknown 37.0.11.232 clean
asweee.jumpingcrab.com LV DataClub S.A. 46.183.223.113 clean
37.0.11.232 Unknown 37.0.11.232 malware
46.183.223.113 LV DataClub S.A. 46.183.223.113 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