Report - csrssmd.exe

Generic Malware Antivirus PWS SMTP KeyLogger AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.07.14 07:33 Machine s1_win7_x6403
Filename csrssmd.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
13.4
ZERO API file : malware
VT API (file) 54 detected (Common, malicious, high confidence, GenericKD, Save, Taskun, Eldorado, Malcode, gdn34, GenKryptik, GLMB, score, PWSX, Gencirc, Nekark, yqbut, Siggen21, NEGASTEAL, YXDGFZ, moderate, Krypt, Static AI, Suspicious PE, AgentTesla, ASBA, 1423LIL, Detected, R589833, Artemis, ai score=81, unsafe, GdSda, MSIL@AI, MSIL2, ywpuLvQrMUV+tDHzjuKeXg, FormBook, Kryptik, confidence, 100%)
md5 af17c05e85e4e33359ccab3e6d4a3de2
sha256 7b4cf761f6d81b2808e88bd6239a3b15909c828ea709cf6f975f5caa6be7e472
ssdeep 12288:WmRoHLOF/6OrKu8R3MLeshsF3SXCA+69chCPH5fr06W:RuLo/7vusLXwAe85fW
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (29cnts)

Level Description
danger File has been identified by 54 AntiVirus engines on VirusTotal as malicious
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 create or modify system certificates
watch Code injection by writing an executable or DLL to the memory of another process
watch Harvests credentials from local email clients
watch Harvests credentials from local FTP client softwares
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 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 Creates a shortcut to an executable file
notice Creates a suspicious process
notice One or more potentially interesting buffers were extracted
notice Steals private information from local Internet browsers
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 One or more processes crashed
info Queries for the computername
info This executable has a PDB path
info Uses Windows APIs to generate a cryptographic key

Rules (17cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Antivirus Contains references to security software binaries (download)
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice Network_SMTP_dotNet Communications smtp 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
info win_hook Affect hook table memory

Network (2cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
terminal4.veeblehosting.com US SSASN2 108.170.55.202 mailcious
108.170.55.203 US SSASN2 108.170.55.203 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