Report - 33333.exe

Azorult .NET framework Emotet AsyncRAT backdoor
ScreenShot
Created 2021.03.22 19:10 Machine s1_win7_x6402
Filename 33333.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
18.4
ZERO API file : malware
VT API (file) 20 detected (malicious, high confidence, Artemis, Unsafe, Kryptik, Eldorado, FileRepMetagen, Static AI, Malicious PE, kcloud, Bomitag, score, ZemsilF, Er0@au@s, confidence, QVM41)
md5 09f7fb929981dfd502b5e60cffcf4dc0
sha256 f8fbe166151947ae09b6b0244fc0867d41df8f46e1652e4edd89a4eb420adfa2
ssdeep 24576:i/GtDs9WXIqKpdNVcl9QyNUj3QzK26By3QofAIwqv6+z6ythc:i/GtDsoXPedNjyNUzQT6BKQoMz+z6ytG
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (41cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 20 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Appends a known CryptoMix ransomware file extension to files that have been encrypted
watch Attempts to access Bitcoin/ALTCoin wallets
watch Code injection by writing an executable or DLL to the memory of another process
watch Collects information about installed applications
watch Communicates with host for which no DNS query was performed
watch Installs itself for autorun at Windows startup
watch Looks for the Windows Idle Time to determine the uptime
watch One or more of the buffers contains an embedded PE file
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
watch Uses Sysinternals tools in order to add additional command line functionality
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 Created a process named as a common system process
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 Resolves a suspicious Top Level Domain (TLD)
notice Steals private information from local Internet browsers
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
info The executable contains unknown PE section names indicative of a packer (could be a false positive)
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (24cnts)

Level Name Description Collection
danger Win32_Trojan_Emotet_2_Zero Win32 Trojan Emotet 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 IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (download)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info vmdetect Possibly employs anti-virtualization techniques memory
info WMI_VM_Detect Detection of Virtual Appliances through the use of WMI for use of evasion. memory
info HasOverlay Overlay Check binaries (download)
info IsNET_EXE (no description) binaries (upload)
info IsPacked Entropy Check binaries (upload)
info IsWindowsGUI (no description) binaries (download)
info IsWindowsGUI (no description) binaries (upload)
info network_tcp_listen Listen for incoming communication memory
info Win32_Trojan_PWS_Azorult_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile memory

Network (8cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://217.12.209.82:44444/ NL ITL LLC 217.12.209.82 clean
https://8dyv.alemention.ru/477684561.exe RU JSC RTComm.RU 81.177.140.11 clean
https://api.ip.sb/geoip US CLOUDFLARENET 172.67.75.172 clean
8dyv.alemention.ru RU JSC RTComm.RU 81.177.140.11 clean
api.ip.sb US CLOUDFLARENET 104.26.13.31 clean
172.67.75.172 US CLOUDFLARENET 172.67.75.172 clean
217.12.209.82 NL ITL LLC 217.12.209.82 clean
81.177.140.11 RU JSC RTComm.RU 81.177.140.11 malware

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