ScreenShot
| Created | 2023.03.14 10:51 | Machine | s1_win7_x6403 |
| Filename | 85.exe | ||
| Type | PE32 executable (GUI) Intel 80386, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : malware | ||
| VT API (file) | 32 detected (Convagent, trYj, GenericKD, Artemis, V3vx, malicious, confidence, 100%, Attribute, HighConfidence, high confidence, GenCBL, score, DCRat, ccnc, moderate, Static AI, Suspicious PE, ai score=80, Themida, Wacatac, Casdet, TX2RUA, Detected, BScope, Fuerboos, Generic@AI, RDML, 3E9PZVMaebhIJgFHb9+59A, Asprotect) | ||
| md5 | ec50388a69792d133c1298e1dceb40a6 | ||
| sha256 | bdc2f986320facc24627b6e31ae3ff0147583b04c262a386b2043557b59d06c0 | ||
| ssdeep | 49152:PuxU6VfbIhv2/g8nn7HoqW2m86bzBvwv+P9gB8xy2LmQKV:Wi6VzIA/gg7IR8iVgB8xybQKV | ||
| imphash | 4328f7206db519cd4e82283211d98e83 | ||
| impfuzzy | 3:sUx2AEBquLdAIEK:nEBqMf | ||
Network IP location
Signature (45cnts)
| Level | Description |
|---|---|
| danger | File has been identified by 32 AntiVirus engines on VirusTotal as malicious |
| warning | Disables Windows Security features |
| watch | A process attempted to delay the analysis task. |
| watch | Attempts to create or modify system certificates |
| watch | Attempts to modify UAC prompt behavior |
| watch | Checks for the presence of known windows from debuggers and forensic tools |
| watch | Checks the version of Bios |
| watch | Communicates with host for which no DNS query was performed |
| watch | Created a process named as a common system process |
| watch | Creates a windows hook that monitors keyboard input (keylogger) |
| watch | Deletes a large number of files from the system indicative of ransomware |
| watch | Detects Virtual Machines through their custom firmware |
| watch | Detects VMWare through the in instruction feature |
| watch | Harvests credentials from local FTP client softwares |
| watch | Looks for the Windows Idle Time to determine the uptime |
| watch | Network communications indicative of possible code injection originated from the process explorer.exe |
| watch | One or more of the buffers contains an embedded PE file |
| watch | Resumed a suspended thread in a remote process potentially indicative of process injection |
| notice | A process created a hidden window |
| notice | Allocates read-write-execute memory (usually to unpack itself) |
| notice | An executable file was downloaded by the process explorer.exe |
| 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 shortcut to an executable file |
| notice | Creates executable files on the filesystem |
| notice | Drops a binary and executes it |
| notice | Drops an executable to the user AppData folder |
| notice | Expresses interest in specific running processes |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | Looks up the external IP address |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| notice | Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation |
| notice | Sends data using the HTTP POST Method |
| notice | Steals private information from local Internet browsers |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| 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 | The file contains an unknown PE resource name possibly indicative of a packer |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (49cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (upload) |
| warning | Suspicious_Obfuscation_Script_2 | Suspicious obfuscation script (e.g. executable files) | binaries (download) |
| warning | themida_packer | themida packer | binaries (download) |
| warning | themida_packer | themida packer | binaries (upload) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | Network_Downloader | File Downloader | memory |
| watch | UPX_Zero | UPX packed file | binaries (download) |
| notice | Code_injection | Code injection with CreateRemoteThread in a remote process | memory |
| notice | Create_Service | Create a windows service | memory |
| notice | Escalate_priviledges | Escalate priviledges | memory |
| notice | Generic_PWS_Memory_Zero | PWS Memory | memory |
| notice | KeyLogger | Run a KeyLogger | memory |
| notice | local_credential_Steal | Steal credential | memory |
| notice | Network_DGA | Communication using DGA | memory |
| notice | Network_DNS | Communications use DNS | memory |
| notice | Network_FTP | Communications over FTP | memory |
| notice | Network_HTTP | Communications over HTTP | memory |
| notice | Network_P2P_Win | Communications over P2P network | memory |
| notice | Network_TCP_Socket | Communications over RAW Socket | memory |
| notice | ScreenShot | Take ScreenShot | memory |
| notice | Sniff_Audio | Record Audio | memory |
| 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 | Is_DotNET_EXE | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | IsPE64 | (no description) | binaries (download) |
| info | OS_Processor_Check_Zero | OS Processor Check | binaries (download) |
| info | PE_Header_Zero | PE File Signature | binaries (download) |
| 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 (download) |
Network (41cnts) ?
Suricata ids
ET INFO TLS Handshake Failure
ET HUNTING Observed Telegram API Domain (api .telegram .org in TLS SNI)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
ET MALWARE DCRAT Activity (GET)
ET POLICY Possible External IP Lookup SSL Cert Observed (ipinfo.io)
ET HUNTING Telegram API Domain in DNS Lookup
ET HUNTING Observed Malicious Filename in Outbound POST Request (Information.txt)
ET MALWARE Win32/DCRat CnC Exfil
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging)
ET HUNTING Observed Telegram API Domain (api .telegram .org in TLS SNI)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
ET MALWARE DCRAT Activity (GET)
ET POLICY Possible External IP Lookup SSL Cert Observed (ipinfo.io)
ET HUNTING Telegram API Domain in DNS Lookup
ET HUNTING Observed Malicious Filename in Outbound POST Request (Information.txt)
ET MALWARE Win32/DCRat CnC Exfil
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging)
PE API
IAT(Import Address Table) Library
kernel32.dll
0x59a078 GetModuleHandleA
mscoree.dll
0x59a080 _CorExeMain
EAT(Export Address Table) is none
kernel32.dll
0x59a078 GetModuleHandleA
mscoree.dll
0x59a080 _CorExeMain
EAT(Export Address Table) is none