Report - rxtygf.exe

.NET framework(MSIL) Admin Tool (Sysinternals etc ...) Malicious Library Http API Escalate priviledges HTTP Internet API AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.07.18 07:31 Machine s1_win7_x6403
Filename rxtygf.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
4
Behavior Score
18.0
ZERO API
VT API (file) 26 detected (malicious, high confidence, Artemis, unsafe, Vtuo, Attribute, HighConfidence, score, TrojanX, moderate, Casdet, Detected, ZemsilF, ym0@aWl, Genetic, Snake, susgen, Kryptik, confidence, 100%)
md5 ad607f046a6f855f06d0e7b2cab189c1
sha256 552719d9dda2789ec880ab52ba8c7e695b631d6fab6d56474b4b6a4f8fe4c21e
ssdeep 6144:VZVgqnvYmMKNLgYApEBQh9jToGZaFROm7kv6KreTqH6F:VZ+qnwSg/ECh9jTH3iGreTjF
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (37cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 26 AntiVirus engines on VirusTotal as malicious
warning Generates some ICMP traffic
watch A process attempted to delay the analysis task.
watch A process performed obfuscation on information about the computer or sent it to a remote location indicative of CnC Traffic/Preperations.
watch Allocates execute permission to another process indicative of possible code injection
watch Attempts to create or modify system certificates
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 Detects VMWare through the presence of a registry key
watch Found URLs related to Tor in process memory dump (e.g. onion services
watch Looks for the Windows Idle Time to determine the uptime
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
watch Uses suspicious command line tools or Windows utilities
watch Writes a potential ransom message to disk
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 HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Looks up the external IP address
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Potentially malicious URLs were found in the process memory dump
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Sends data using the HTTP POST Method
notice Steals private information from local Internet browsers
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 Uses Windows APIs to generate a cryptographic key

Rules (18cnts)

Level Name Description Collection
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Escalate_priviledges Escalate priviledges memory
notice Network_HTTP Communications over HTTP memory
notice Str_Win32_Http_API Match Windows Http API call 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 (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 (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://api.ipify.org/ US WEBNX 64.185.227.156
https://whyers.io/QWEwqdsvsf/ap.php US CLOUDFLARENET 104.21.76.77 26448
whyers.io US CLOUDFLARENET 172.67.191.103
api.ipify.org US WEBNX 64.185.227.156
173.231.16.76 US WEBNX 173.231.16.76
104.21.76.77 US CLOUDFLARENET 104.21.76.77

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