ScreenShot
| Created | 2021.03.11 18:52 | Machine | s1_win7_x6401 |
| Filename | Invoice.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : clean | ||
| VT API (file) | 12 detected (malicious, high confidence, Save, ZemsilF, km0@aC6UP5n, FileRepMalware, score, Static AI, Malicious PE, confidence) | ||
| md5 | f99fbbda34957150a2c05dbb195e7657 | ||
| sha256 | 144a56ba16619c4cb957fd6017cdcacd4a15091f19fd4152ad00da08dfb7f59a | ||
| ssdeep | 1536:GNW+YJJ2tb8DLc+zJluZUnKt/pYyGSUW65Da0Y:GNzSkRQlDTn6/p5UWwe | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (31cnts)
| Level | Description |
|---|---|
| danger | Disables Windows Security features |
| danger | Executed a process and injected code into it |
| watch | Creates known SpyNet files |
| watch | Creates known Upatre files |
| watch | Deletes executed files from disk |
| watch | File has been identified by 12 AntiVirus engines on VirusTotal as malicious |
| watch | Installs itself for autorun at Windows startup |
| watch | The process powershell.exe wrote an executable file to disk |
| 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 | Connects to a Dynamic DNS Domain |
| notice | Creates a shortcut to an executable file |
| 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 | Moves the original executable to a new location |
| 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 | Searches running processes potentially to identify processes for sandbox evasion |
| 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 | Uses Windows APIs to generate a cryptographic key |
Rules (63cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| watch | Antivirus | Contains references to security software | binaries (download) |
| 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 (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 | 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 | binaries (download) |
| info | escalate_priv | Escalade priviledges | memory |
| info | HasDebugData | DebugData Check | binaries (download) |
| info | HasOverlay | Overlay Check | binaries (download) |
| info | HasRichSignature | Rich Signature Check | binaries (download) |
| info | hijack_network | Hijack network configuration | memory |
| info | inject_thread | Code injection with CreateRemoteThread in a remote process | binaries (download) |
| info | inject_thread | Code injection with CreateRemoteThread in a remote process | memory |
| info | IsNET_EXE | (no description) | binaries (upload) |
| info | IsWindowsGUI | (no description) | binaries (download) |
| info | IsWindowsGUI | (no description) | binaries (upload) |
| info | keylogger | Run a keylogger | binaries (download) |
| 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_udp_sock | Communications over UDP network | memory |
| info | screenshot | Take screenshot | binaries (download) |
| 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 | binaries (download) |
| info | win_registry | Affect system registries | memory |
| info | win_token | Affect system token | binaries (download) |
| info | win_token | Affect system token | memory |
Network (7cnts) ?
Suricata ids
ET JA3 Hash - Possible Malware - Various Trickbot/Kovter/Dridex
ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
ET POLICY DNS Query to DynDNS Domain *.ddns .net
ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
ET POLICY DNS Query to DynDNS Domain *.ddns .net
PE API
IAT(Import Address Table) Library
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none