Report - vbc.exe

RAT Generic Malware Admin Tool (Sysinternals etc ...) SMTP KeyLogger AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.09.08 09:49 Machine s1_win7_x6402
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
1
Behavior Score
10.2
ZERO API file : malware
VT API (file) 17 detected (malicious, high confidence, Unsafe, Save, ZemsilF, Wm0@a4xFX6e, Kryptik, Eldorado, Attribute, HighConfidence, Agensla, Sabsik, MZCrypt, Static AI, Malicious PE, Genetic, confidence, 100%, susgen)
md5 8f388b3312600431d2eb17b497ab3ee2
sha256 acef925c2479831aef6768ae25924db0b1ca0724327d5e372294768f524b434e
ssdeep 6144:0e+gtZkjyVX2TgtZkjyVDgtZkjyV6IGrEfxDxAzIljRmKLXWM3:1tMy92MtMy+tMyMIGrEfI8l9TJ
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (22cnts)

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 File has been identified by 17 AntiVirus engines on VirusTotal as malicious
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 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 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 Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (16cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
notice KeyLogger Run a KeyLogger memory
notice Network_SMTP_dotNet Communications smtp 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_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://pastebin.pl/view/raw/ae498e11 DE Hetzner Online GmbH 168.119.93.163 4631 mailcious
pastebin.pl DE Hetzner Online GmbH 168.119.93.163 mailcious
168.119.93.163 DE Hetzner Online GmbH 168.119.93.163 mailcious

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