Report - CL.exe

RAT NPKI UPX OS Processor Check .NET EXE PE32 PE File
ScreenShot
Created 2023.03.09 17:33 Machine s1_win7_x6401
Filename CL.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
11
Behavior Score
9.0
ZERO API file : malware
VT API (file) 37 detected (AIDetectNet, malicious, high confidence, MSILZilla, Save, confidence, 100%, Attribute, HighConfidence, ClipBanker, score, Tasker, CLOUD, high, ai score=81, Detected, unsafe, Static AI, Malicious PE, susgen, RansomX)
md5 ed2a38021d3dcadca60d08163d1c7a31
sha256 59aa5b7633387b351452b7f03f39083a79912e00098b51b7ac060b31df3572eb
ssdeep 12288:Ho2QRXDD1yed0fsU4GSWgOvPESGj4s32xEdRCSTNjAZi96VG6wl:Ho2Q9NXw2/wPOjdGxYjpDEVU
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (21cnts)

Level Description
danger File has been identified by 37 AntiVirus engines on VirusTotal as malicious
watch A process performed obfuscation on information about the computer or sent it to a remote location indicative of CnC Traffic/Preperations.
watch Appends a known CryptoMix ransomware file extension to files that have been encrypted
watch Attempts to access Bitcoin/ALTCoin wallets
watch Installs itself for autorun at Windows startup
watch Uses Sysinternals tools in order to add additional command line functionality
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 suspicious process
notice Creates executable files on the filesystem
notice Drops a binary and executes it
notice Drops an executable to the user AppData folder
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
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 (13cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI binaries (download)
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
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 OS_Processor_Check_Zero OS Processor Check binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

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