Report - cleanmgr.exe

Backdoor RemcosRAT browser info stealer Downloader Google Chrome User Data Confuser .NET Create Service Socket DNS Escalate priviledges PWS Sniff Audio ScreenShot Internet API KeyLogger AntiDebug AntiVM .NET EXE PE32 PE File PE64
ScreenShot
Created 2023.06.26 14:29 Machine s1_win7_x6401
Filename cleanmgr.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
13.2
ZERO API file : malware
VT API (file) 54 detected (AIDetectMalware, Remcos, malicious, high confidence, Tiny, Vysk, confidence, 100%, Genus, ABRisk, PTYN, score, DropperX, Qqil, klnav, DownLoader45, R03BC0XFA23, Artemis, DarkCloud, Sabsik, Malware@#1rpiufaiilzf7, Casdet, Detected, ai score=84, TScope, unsafe, Chgt, CLOUD, Static AI, Malicious PE, susgen, ZemsilF, am0@a8Fmd3k)
md5 f503da8eee4e7cd822239110b488b08b
sha256 7874d15ca173ee419b69c1ac2cae4eb6f158a8c1285b9bff7e59af840bed251e
ssdeep 384:N6P1J3MxbGglqBcpnHp//UeUB7Eb2eqJT:N6dkQBcLSB7Eb21t
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (28cnts)

Level Description
danger File has been identified by 54 AntiVirus engines on VirusTotal as malicious
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 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
notice A process attempted to delay the analysis task.
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 Connects to a Dynamic DNS Domain
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 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 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 This executable has a PDB path

Rules (31cnts)

Level Name Description Collection
danger Win_Backdoor_RemcosRAT Win Backdoor RemcosRAT memory
warning infoStealer_browser_Zero browser info stealer memory
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch ConfuserEx_Zero Confuser .NET binaries (download)
watch Network_Downloader File Downloader 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_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 IsPE64 (no description) 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
info Win_Trojan_agentTesla_Zero Win.Trojan.agentTesla memory

Network (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://84.54.50.31/D/YY.exe Unknown 84.54.50.31 34190 malware
pekonomiana.duckdns.org NL Global Layer B.V. 134.19.179.211 mailcious
84.54.50.31 Unknown 84.54.50.31 malware
134.19.179.211 NL Global Layer B.V. 134.19.179.211 mailcious

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