Report - docgen20230925.exe

Malicious Library UPX PWS SMTP KeyLogger AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2023.09.25 10:19 Machine s1_win7_x6401
Filename docgen20230925.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
14.6
ZERO API file : clean
VT API (file)
md5 72f02b6a2b8fd2a73ae8715fcc2323ca
sha256 b0fbd35f04ce341b8e14ad03684aa7a5fbc7525d163f38bf43a0f6041edeb3c8
ssdeep 24576:CMIwO43ryC3ASF+7Azwr2skstJ6Y2Qc6ZsifO41JdlEQgeGsWML2l:Cu3Ax71rFnJl2Qct8zdltYsW3l
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (32cnts)

Level Description
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 Code injection by writing an executable or DLL to the memory of another process
watch Creates a windows hook that monitors keyboard input (keylogger)
watch Harvests credentials from local email clients
watch Harvests credentials from local FTP client softwares
watch Installs itself for autorun at Windows startup
watch Makes SMTP requests
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 Created a process named as a common system process
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 Looks up the external IP address
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 One or more processes crashed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (20cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch UPX_Zero UPX packed file 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 (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 (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
softwarez.online Unknown mailcious
mail.royalcheckout.store CH Private Layer INC 179.43.183.46 mailcious
api.ipify.org US WEBNX 104.237.62.212 clean
179.43.183.46 CH Private Layer INC 179.43.183.46 mailcious
64.185.227.156 US WEBNX 64.185.227.156 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