ScreenShot
| Created | 2021.05.12 17:37 | Machine | s1_win7_x6401 |
| Filename | kn.exe | ||
| 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) | 18 detected (malicious, high confidence, Unsafe, Kryptik, Eldorado, Attribute, HighConfidence, AgentTesla, score, Artemis, StupidPInvoker, AvsArher, bUx2VN, Static AI, Malicious PE, ZemsilF, mv0@aaw0fPo) | ||
| md5 | 5003ed514f5ec9f0c5fbbc8994dfbfe7 | ||
| sha256 | eec100fdef88c4bcd7fe30040ccd0476cac543ab8edda576c5e5a799606c585e | ||
| ssdeep | 24576:fB4YJ28quwK87NXNAekJ+pL04NVMOVgrmjX0970Jorgb8OvDUo80:6d1uwHNXeeD0zOVxjE97060b8Ov38 | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (31cnts)
| 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 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 | Deletes executed files from disk |
| watch | File has been identified by 18 AntiVirus engines on VirusTotal as malicious |
| watch | Looks for the Windows Idle Time to determine the uptime |
| watch | Manipulates memory of a non-child process indicative of process injection |
| 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 |
| 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 for the Locally Unique Identifier on the system for a suspicious privilege |
| notice | Checks whether any human activity is being performed by constantly checking whether the foreground window changed |
| notice | Connects to a Dynamic DNS Domain |
| notice | Creates a suspicious process |
| notice | One or more potentially interesting buffers were extracted |
| notice | Terminates another process |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| 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 | Queries for the computername |
| info | The executable contains unknown PE section names indicative of a packer (could be a false positive) |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (14cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| notice | Network_DNS | Communications use DNS | 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 | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
PE API
IAT(Import Address Table) Library
mscoree.dll
0x536000 _CorExeMain
EAT(Export Address Table) is none
mscoree.dll
0x536000 _CorExeMain
EAT(Export Address Table) is none