ScreenShot
| Created | 2023.03.12 11:06 | Machine | s1_win7_x6401 |
| Filename | kyj.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : malware | ||
| VT API (file) | 36 detected (DownLoader45, GenericKD, GenericRXVO, Kryptik, Vppj, malicious, confidence, 100%, GenKryptik, Eldorado, moderate confidence, GHGN, SnakeLogger, RATX, Artemis, Casdet, Detected, rexp, MSILHeracles, ai score=86, R002H0DCA23, MSIL@AI, MSIL2, LKUH04LFs8FpsjzfiN99Ig, Krypt, susgen) | ||
| md5 | 1be680a39218aa5f77c4bfe3c24a8107 | ||
| sha256 | 4e67418ff70c2ce08a1a5aeb51eff88c987ea416ee626bf00b08b6377f941973 | ||
| ssdeep | 6144:n4qeAfo6IQVHfZpkgV6SXb5DpYksBRkQayWGtvsHNNwBfIJpLFOu:4eeEBpxsSXbaB9aXGtvsHNNQfIJphOu | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (34cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| danger | File has been identified by 36 AntiVirus engines on VirusTotal as malicious |
| watch | A process attempted to delay the analysis task. |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Attempts to identify installed AV products by installation directory |
| 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 | Harvests credentials from local email clients |
| watch | Harvests credentials from local FTP client softwares |
| watch | Harvests information related to installed instant messenger clients |
| watch | Looks for the Windows Idle Time to determine the uptime |
| 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 | The process powershell.exe wrote an executable file to disk |
| 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 | Connects to a Dynamic DNS Domain |
| notice | Creates a shortcut to an executable file |
| notice | Creates a suspicious process |
| 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 | 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 | This executable has a PDB path |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (21cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | UPX_Zero | UPX packed file | binaries (upload) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | 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 | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | OS_Processor_Check_Zero | OS Processor Check | 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 |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
Network (5cnts) ?
Suricata ids
ET HUNTING Suspicious Terse Request for .bmp
ET INFO DYNAMIC_DNS Query to a *.dyndns .org Domain
ET INFO DYNAMIC_DNS Query to *.dyndns. Domain
ET MALWARE 404/Snake/Matiex Keylogger Style External IP Check
ET POLICY External IP Lookup - checkip.dyndns.org
ET INFO DYNAMIC_DNS HTTP Request to a *.dyndns .org Domain
ET INFO DYNAMIC_DNS Query to a *.dyndns .org Domain
ET INFO DYNAMIC_DNS Query to *.dyndns. Domain
ET MALWARE 404/Snake/Matiex Keylogger Style External IP Check
ET POLICY External IP Lookup - checkip.dyndns.org
ET INFO DYNAMIC_DNS HTTP Request to a *.dyndns .org Domain
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