ScreenShot
| Created | 2021.12.24 12:51 | Machine | s1_win7_x6401 |
| Filename | JOKS.scr | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : clean | ||
| VT API (file) | 17 detected (malicious, high confidence, Unsafe, confidence, score, Gen8, Static AI, Malicious PE, Artemis, ZemsilF, Tm2@am58Ppo, susgen) | ||
| md5 | a19a91e08fe068a3fa39668805da6cdb | ||
| sha256 | 797f288d540979e65f408255969d05e60f28481ffe64104a7be6b6aa36282e56 | ||
| ssdeep | 6144:d/r2aX/GW6ZfxQPcNyrWPrqfiU5Fdt1kJw990G8dPpvEcipWfNPdPkT:d/dX/GW0drWimFinaa8T | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (37cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Attempts to remove evidence of file being downloaded from the Internet |
| 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 | Deletes executed files from disk |
| watch | File has been identified by 17 AntiVirus engines on VirusTotal as malicious |
| watch | Harvests credentials from local email clients |
| 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 | An executable file was downloaded by the process joks.scr |
| 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 an executable to the user AppData folder |
| notice | Executes one or more WMI queries |
| 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 | Searches running processes potentially to identify processes for sandbox evasion |
| notice | Steals private information from local Internet browsers |
| 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 | Collects information to fingerprint the system (MachineGuid |
| info | Command line console output was observed |
| info | One or more processes crashed |
| info | Queries for the computername |
| info | Tries to locate where the browsers are installed |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (35cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | NPKI_Zero | File included NPKI | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (upload) |
| warning | hide_executable_file | Hide executable file | binaries (download) |
| warning | hide_executable_file | Hide executable file | binaries (upload) |
| warning | infoStealer_emailClients_Zero | email clients info stealer | memory |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | ASPack_Zero | ASPack packed file | 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) |
| watch | UPX_Zero | UPX packed file | binaries (upload) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (download) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (upload) |
| notice | Code_injection | Code injection with CreateRemoteThread in a remote process | memory |
| notice | Escalate_priviledges | Escalate priviledges | memory |
| notice | KeyLogger | Run a KeyLogger | memory |
| notice | Network_DNS | Communications use DNS | memory |
| notice | Persistence | Install itself for autorun at Windows startup | 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 (download) |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| 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 |
Network (6cnts) ?
Suricata ids
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
ET POLICY PE EXE or DLL Windows file download HTTP
ET MALWARE Likely Evil EXE download from MSXMLHTTP non-exe extension M2
ET POLICY PE EXE or DLL Windows file download HTTP
ET MALWARE Likely Evil EXE download from MSXMLHTTP non-exe extension M2
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