Report - choileety.exe

Client SW User Data Stealer Backdoor RemcosRAT browser info stealer Generic Malware Google Chrome User Data Downloader Admin Tool (Sysinternals etc ...) Antivirus Create Service Socket Escalate priviledges PWS Sniff Audio DNS ScreenShot Internet API KeyLo
ScreenShot
Created 2023.07.20 07:46 Machine s1_win7_x6403
Filename choileety.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
15.2
ZERO API file : malware
VT API (file) 49 detected (Common, Seraph, GenericKD, Artemis, unsafe, Remcos, Vc86, Kryptik, malicious, confidence, 100%, ABRisk, FDWN, high confidence, score, CrypterX, Timw, zgvdr, Static AI, Malicious PE, GenKD, Malware@#e4dafy8x064c, WW1L0M, Detected, ZemsilF, Sm0@a4DkTDj, ai score=82, Chgt, R002H0DGI23, MSIL@AI, MSIL2, SkVHGLsQAtmY2FH9+n4a+A, susgen, GenKryptik, GKZJ)
md5 da9534900ee0d11c9b30cf33152ea03c
sha256 ac901bf5882f14e9e07235b8488b6479b4519addda6dbfb89147401c1e9e6e4f
ssdeep 12288:k8/HoptmKv8x10D+dHr73q/6pd7UB5k6d5EK7IS5SE/84a:1x1eML76ypZ/6d5bSIO
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 File has been identified by 49 AntiVirus engines on VirusTotal as malicious
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 Creates a windows hook that monitors keyboard input (keylogger)
watch Installs itself for autorun at Windows startup
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 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 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 shortcut to an executable file
notice Creates a suspicious process
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice One or more potentially interesting buffers were extracted
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 Command line console output was observed
info Queries for the computername
info This executable has a PDB path
info Uses Windows APIs to generate a cryptographic key

Rules (33cnts)

Level Name Description Collection
danger Client_SW_User_Data_Stealer Client_SW_User_Data_Stealer memory
danger Win_Backdoor_RemcosRAT Win Backdoor RemcosRAT memory
warning Generic_Malware_Zero Generic Malware binaries (download)
warning infoStealer_browser_Zero browser info stealer memory
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (download)
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
watch Antivirus Contains references to security software binaries (download)
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
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 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 (2cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
91.192.100.10 CH Datasource AG 91.192.100.10 mailcious
91.103.252.31 RU Hostglobal.plus Inc 91.103.252.31 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