ScreenShot
| Created | 2024.05.29 07:45 | Machine | s1_win7_x6403 |
| Filename | csrss.exe | ||
| Type | PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : clean | ||
| VT API (file) | |||
| md5 | 54799fee84c11edd9e0b221612bf2631 | ||
| sha256 | 5e55822bd00aac0865436cac6f7a6a8f881cd3ce027474a5b741f43a94c84095 | ||
| ssdeep | 12288:qDuADVUI0AHCfFmcLnlVfmJ0j74NAJgOlMm0VqLxhlOaGkw:qTKGifFHlV+K74NugOlw4Lxhfu | ||
| imphash | |||
| impfuzzy | 3:: | ||
Network IP location
Signature (24cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| watch | A process attempted to delay the analysis task. |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Attempts to create or modify system certificates |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Creates a windows hook that monitors keyboard input (keylogger) |
| watch | Harvests credentials from local email clients |
| watch | Harvests credentials from local FTP client softwares |
| 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 |
| 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 | Looks up the external IP address |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| notice | Steals private information from local Internet browsers |
| 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 | One or more processes crashed |
| info | Queries for the computername |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (16cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Win_Trojan_AgentTesla_M_B_Zero | Win Trojan AgentTesla | memory |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| notice | Generic_PWS_Memory_Zero | PWS Memory | memory |
| notice | KeyLogger | Run a KeyLogger | memory |
| notice | Network_SMTP_dotNet | Communications smtp | memory |
| 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 | IsPE64 | (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_hook | Affect hook table | memory |
Suricata ids
ET INFO External IP Lookup Domain (ipify .org) in DNS Lookup
ET INFO External IP Address Lookup Domain (ipify .org) in TLS SNI
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET INFO External IP Address Lookup Domain (ipify .org) in TLS SNI
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
PE API
IAT(Import Address Table) is none
EAT(Export Address Table) is none
EAT(Export Address Table) is none