Report - vbc.exe

AgentTesla browser info stealer Google Chrome User Data Downloader UPX Create Service Socket DNS PWS[m] Sniff Audio Internet API Escalate priviledges KeyLogger AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.05.16 09:18 Machine s1_win7_x6403
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
1
Behavior Score
9.6
ZERO API file : malware
VT API (file)
md5 5be2f10437a6105706e880b53b89544a
sha256 90920ec16dc530c71905b20801f4d443ddcadbcb1d2a5d0a957fc837169fa4b2
ssdeep 24576:em86oV9I0oh2pEGxA5x9YrNS3D1UE44q:eAhEEDx96NSzbq
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (20cnts)

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 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 Creates a windows hook that monitors keyboard input (keylogger)
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
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 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 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 Uses Windows APIs to generate a cryptographic key

Rules (25cnts)

Level Name Description Collection
warning infoStealer_browser_Zero browser info stealer memory
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (upload)
notice Create_Service Create a windows service 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 Sniff_Audio Record Audio 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
info win_hook Affect hook table memory
info Win_Trojan_agentTesla_Zero Win.Trojan.agentTesla memory

Network (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://geoplugin.net/json.gp NL Schuberg Philis B.V. 178.237.33.50 clean
geoplugin.net NL Schuberg Philis B.V. 178.237.33.50 clean
pops.mastercoa.co CA AMANAHA-NEW 184.75.223.195 clean
178.237.33.50 NL Schuberg Philis B.V. 178.237.33.50 clean
184.75.223.195 CA AMANAHA-NEW 184.75.223.195 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