Report - fj37ruwe5.exe

AsyncRAT backdoor Generic Malware AntiDebug AntiVM PE File .NET EXE PE32
ScreenShot
Created 2021.06.24 19:18 Machine s1_win7_x6401
Filename fj37ruwe5.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
12.2
ZERO API file : clean
VT API (file) 36 detected (malicious, high confidence, GenericKD, Save, Kryptik, Eldorado, ABLN, R002C0PFL21, Static AI, Suspicious PE, ai score=88, AgentTesla, AAVS, ZemsilF, um0@aCL64Ldi, RATX, confidence)
md5 95762a936318d338049d7d27216ceda4
sha256 18de5cc8e3c7686ba9a0d5f4e377d412347d93301bde4f224d448dc41c1b5863
ssdeep 6144:dR8skkxDmM2RG+zcwxOVbcEkX6a5B3FK/s2:fvwM4GSYbcb6g3I/
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 36 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 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 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 suspicious process
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 One or more processes crashed
info Queries for the computername

Rules (13cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
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_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://www.bing.com/ US MICROSOFT-CORP-MSN-AS-BLOCK 204.79.197.200 clean
www.google.com US GOOGLE 142.250.196.100 clean
172.217.24.68 US GOOGLE 172.217.24.68 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