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Report - Payment Invoice.exe

AsyncRAT backdoor
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ScreenShot
Created 2021.03.12 09:19 Machine s1_win7_x6401
Filename Payment Invoice.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
 Behavior Score
12.4
ZERO API file : clean
VT API (file) 15 detected (malicious, high confidence, Save, ZemsilF, cm1@aiLbYVpi, Eldorado, Woreflint, score, Artemis, Unsafe, CLOUD, RATX)
md5 11aba0510bad95a7b385c86d00d9626c
sha256 6fda97161c0e8e14616a7692b3aecf49ebdcc50a46e1a4f2dadc29c89ffa87a0
ssdeep 768:KmYdrsZfVbc8P3D3C+5hdqwjghvT7JSmFIRFR9hr:or8JcADywhdq1hTtFIRFJ
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
danger Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
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 Creates known Upatre files
watch File has been identified by 15 AntiVirus engines on VirusTotal as malicious
watch Manipulates memory of a non-child process indicative of process injection
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 One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Potentially malicious URLs were found in the process memory dump
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 Uses Windows APIs to generate a cryptographic key

Rules (53cnts)

Level Name Description Collection
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info antisb_threatExpert Anti-Sandbox checks for ThreatExpert memory
info Check_Dlls (no description) memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerCheck__RemoteAPI (no description) memory
info DebuggerException__ConsoleCtrl (no description) memory
info DebuggerException__SetConsoleCtrl (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 (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info vmdetect_misc Following Rule is referenced from AlienVault's Yara rule repository.This rule contains additional processes and driver names. memory
info win_hook Affect hook table memory
info create_com_service Create a COM server memory
info create_service Create a windows service memory
info cred_local Steal credential memory
info escalate_priv Escalade priviledges memory
info HasOverlay Overlay Check binaries (upload)
info hijack_network Hijack network configuration memory
info inject_thread Code injection with CreateRemoteThread in a remote process memory
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info keylogger Run a keylogger memory
info migrate_apc APC queue tasks migration memory
info network_dga Communication using dga memory
info network_dns Communications use DNS memory
info network_dropper File downloader/dropper memory
info network_ftp Communications over FTP memory
info network_http Communications over HTTP memory
info network_p2p_win Communications over P2P network memory
info network_smtp_dotNet Communications smtp memory
info network_tcp_listen Listen for incoming communication memory
info network_tcp_socket Communications over RAW socket memory
info network_toredo Communications over Toredo network memory
info network_udp_sock Communications over UDP network memory
info screenshot Take screenshot memory
info sniff_audio Record Audio memory
info spreading_file Malware can spread east-west file memory
info spreading_share Malware can spread east-west using share drive memory
info Str_Win32_Wininet_Library Match Windows Inet API library declaration memory
info Str_Win32_Winsock2_Library Match Winsock 2 API library declaration memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile memory
info win_mutex Create or check mutex memory
info win_private_profile Affect private profile memory
info win_registry Affect system registries memory
info win_token Affect system token memory

Network (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://liverpoolofcfanclub.com/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-B570610122DD0E0BD6A6020C4AB66FC9.html
whois
US CLOUDFLARENET 104.21.31.39 361 mailcious
liverpoolofcfanclub.com
whois
US CLOUDFLARENET 172.67.174.240 mailcious
23.105.131.217
whois
US LEASEWEB-USA-NYC-11 23.105.131.217 clean
172.67.174.240
whois
US CLOUDFLARENET 172.67.174.240 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