Report - vbc.exe

AgentTesla PWS .NET framework RAT NPKI browser info stealer Generic Malware Google Chrome User Data Downloader UPX Antivirus ScreenShot Create Service Socket DNS PWS[m] Sniff Audio Internet API Escalate priviledges KeyLogger AntiDebug AntiVM .NET EXE PE32
ScreenShot
Created 2023.04.20 09:39 Machine s1_win7_x6403
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
17.0
ZERO API file : malware
VT API (file) 32 detected (Agensla, Malicious, score, Artemis, Vzf6, confidence, 100%, Kryptik, Eldorado, gen7, GenKryptik, AGen, PWSX, CLOUD, AgentTesla, dypmr, Wacatac, Seraph, Detected, ZemsilF, Nm0@a0KX5Ig, rexp, unsafe, Chgt, R002H0DDJ23, susgen)
md5 a8e1738123e3fa0276eca28516cca103
sha256 9f762f1e973a01e3e6239e91ac690aa219b36851e49a98a0e824c35d9cf4dc3e
ssdeep 6144:ntkatlbXO9rJ8JUMLCtqXSARbQGtSUvyS6jb9cIeA4H4444C:nOGbXvt5SmyXb3eA4H4444C
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (36cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 32 AntiVirus engines on VirusTotal as malicious
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 Communicates with host for which no DNS query was performed
watch Deletes executed files from disk
watch Harvests credentials from local email clients
watch Harvests information related to installed instant messenger clients
watch Installs itself for autorun at Windows startup
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 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 Creates executable files on the filesystem
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 Queries for potentially installed applications
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Searches running processes potentially to identify processes for sandbox evasion
notice Steals private information from local Internet browsers
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 (36cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (download)
warning infoStealer_browser_Zero browser info stealer memory
watch Antivirus Contains references to security software binaries (download)
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 (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult 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 ScreenShot Take ScreenShot 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 (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
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info Win_Trojan_agentTesla_Zero Win.Trojan.agentTesla memory

Network (7cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://95.214.24.37/SystemEnv/uploads/safe_Xtcfsmho.bmp DE CMCS 95.214.24.37 clean
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
top.noforabusers1.xyz DE Mayak Smart Services Ltd. 185.225.74.112 mailcious
178.237.33.50 NL Schuberg Philis B.V. 178.237.33.50 clean
95.214.24.37 DE CMCS 95.214.24.37 mailcious
185.225.74.112 DE Mayak Smart Services Ltd. 185.225.74.112 clean

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x48e298 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure