Report - vbc.exe

AsyncRAT backdoor PWS .NET framework Admin Tool (Sysinternals etc ...) Malicious Library AntiDebug AntiVM PE File .NET EXE PE32
ScreenShot
Created 2021.06.21 17:23 Machine s1_win7_x6402
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
12.2
ZERO API file : clean
VT API (file) 19 detected (YakbeexMSIL, Artemis, malicious, Malcode, gdn30, Kryptik, ABOX, PWSX, NEGASTEAL, Static AI, Suspicious PE, AgentTesla, score, susgen)
md5 44d30f858fcb66c0fa2b475f60d8f6f3
sha256 556900b033c6969b8c33c7fd00a36e94561acc33357e845876abf791ede3ba27
ssdeep 12288:EtJvtWFHmsdP0Bx0CDSSmNGOUmfypuWn7cer/HhU:EX6H7MBfSrHfyAQ7cer
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
danger Executed a process and injected code into it
warning Generates some ICMP traffic
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 File has been identified by 19 AntiVirus engines on VirusTotal as malicious
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 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 Sends data using the HTTP POST Method
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 This executable has a PDB path
info Uses Windows APIs to generate a cryptographic key

Rules (21cnts)

Level Name Description Collection
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (download)
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
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)
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_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (18cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.cyrilgraze.com/p2io/?WZ=ytsDIrP&ibxHRhGx=PONkgH6OT+IdHpvpbj4YyU3gBn/U0y1OFS1Y8BXnr3YdY2x3tUozsMLieTk0sG+frQWfUBsy US CLOUDFLARENET 104.21.65.7 1567 mailcious
http://www.cyrilgraze.com/p2io/ US CLOUDFLARENET 104.21.65.7 1567 mailcious
http://www.micheldrake.com/p2io/ US AUTOMATTIC 192.0.78.25 1550 mailcious
http://www.micheldrake.com/p2io/?WZ=ytsDIrP&ibxHRhGx=d2NgnqRQHDqC8zfUpSeXKrGILlrAeXd0mpzt/HUKTHCMsqjNpHqiPqxZu8ECgv8Wi9ydyjUw US AUTOMATTIC 192.0.78.25 1550 mailcious
http://edgedl.me.gvt1.com/edgedl/release2/update2/AIUdiWYcaIvMz1IBNCM0PPo_1.3.36.82/GoogleUpdateSetup.exe US GOOGLE 34.104.35.123 clean
https://update.googleapis.com/service/update2?cup2key=10:2052101556&cup2hreq=876c248ec5ef25e72ce37cb3d31e61f13291d289045ee395f5c45bb4a691de2a US GOOGLE 142.250.66.131 clean
https://clients2.google.com/service/check2?crx3=true&appid=%7B430FD4D0-B729-4F61-AA34-91526481799D%7D&appversion=1.3.36.32&applang=&machine=1&version=1.3.36.32&userid=&osversion=6.1&servicepack=Service%20Pack%201 US GOOGLE 142.250.66.110 clean
edgedl.me.gvt1.com US GOOGLE 34.104.35.123 clean
www.buylocalclub.info Unknown mailcious
www.micheldrake.com US AUTOMATTIC 192.0.78.25 clean
www.zgcbw.net Unknown mailcious
www.cyrilgraze.com US CLOUDFLARENET 172.67.138.177 clean
www.m678.xyz Unknown clean
142.250.66.110 US GOOGLE 142.250.66.110 clean
142.250.66.131 US GOOGLE 142.250.66.131 clean
34.104.35.123 US GOOGLE 34.104.35.123 clean
192.0.78.25 US AUTOMATTIC 192.0.78.25 mailcious
104.21.65.7 US CLOUDFLARENET 104.21.65.7 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