Report - nellyzx.exe

Formbook Generic Malware Antivirus PWS AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.07.06 18:06 Machine s1_win7_x6403
Filename nellyzx.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
11.8
ZERO API
VT API (file) 23 detected (malicious, high confidence, Artemis, Save, confidence, Malcode, gdn34, score, PWSX, Static AI, Malicious PE, MSIL@AI, MSIL2, BfAldOdY, 5odBkMq2giOuQ, susgen, Kryptik)
md5 f9db6526d2f609f91d136a90e9033b69
sha256 a74e5824ef174a4cdff0bcdfdb4ce4705cc40dc20e6d8ffcf404d3cd7e50a67c
ssdeep 12288:mOC6DCi3lsuaaf8eH6iuqctdCLt/cgkAqgDYQ1MmqWJNoj:Ln8LveLtUg7BY2pRNo
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (27cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 23 AntiVirus engines on VirusTotal as malicious
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 One or more non-whitelisted processes were created
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 shortcut to an executable file
notice Creates a suspicious process
notice Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
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 (17cnts)

Level Name Description Collection
danger Win_Trojan_Formbook_m_Zero Used Formbook[m] memory
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
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

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.2816goldfinch.com/4hc5/?uFNH=1aQlJJBHWdOPrxj6AD3A13DQhChCZAjZwmBIHJty4cFwQaOk3B+TX8CT3vsiVnZd/TWcroCB&zL08lZ=0VO8Ax Unknown 15.197.142.173
http://www.globalentertainmentservices.com/4hc5/?uFNH=fBqdMXdO0V7c0xi+fOII/MBRUNcxF/X1uRSh6m8fpdlX8V1e7CJT8XtAvvT0bgfzIB2x/3Jj&zL08lZ=0VO8Ax US AMAZON-02 13.248.243.5
www.globalentertainmentservices.com US AMAZON-02 13.248.243.5
www.2816goldfinch.com Unknown 3.33.152.147
15.197.142.173 Unknown 15.197.142.173
13.248.243.5 US AMAZON-02 13.248.243.5

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