Report - a.exe

email stealer Downloader .NET framework(MSIL) Socket ScreenShot Escalate priviledges PWS Sniff Audio DNS Code injection persistence KeyLogger AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2023.11.07 19:08 Machine s1_win7_x6403
Filename a.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
10.8
ZERO API file : malware
VT API (file)
md5 248fdd80b574b1379fe4f6f1cee40091
sha256 cca71d6b084705ccef5e22e4fc3b185a6bb4a8b9c9c5dfd78bb0cf922ae7ac5d
ssdeep 12288:xVTX2SJq2fUVY6MgJXrjdWxfKkySikDw75KeEG4+4R2y:xVj2SvMigrJW1Xy1YeEGaR7
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (23cnts)

Level Description
danger Executed a process and injected code into it
watch Allocates execute permission to another process indicative of possible code injection
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 Communicates with host for which no DNS query was performed
watch Installs itself for autorun at Windows startup
watch Manipulates memory of a non-child process indicative of process injection
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 for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates a suspicious process
notice One or more potentially interesting buffers were extracted
notice Potentially malicious URLs were found in the process memory dump
notice Terminates another process
notice The binary likely contains encrypted or compressed data indicative of a packer
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 This executable has a PDB path

Rules (23cnts)

Level Name Description Collection
warning infoStealer_emailClients_Zero email clients info stealer memory
watch Network_Downloader File Downloader memory
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Code_injection Code injection with CreateRemoteThread in a remote process 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 Persistence Install itself for autorun at Windows startup memory
notice ScreenShot Take ScreenShot memory
notice Sniff_Audio Record Audio 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 (1cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
155.94.136.130 US ASN-QUADRANET-GLOBAL 155.94.136.130 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