ScreenShot
| Created | 2022.09.25 19:06 | Machine | s1_win7_x6403 |
| Filename | krnl_bootstrapper.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
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Behavior Score |
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| ZERO API | file : malware | ||
| VT API (file) | 7 detected (DangerousSig, Artemis, Wacatac, GameHack) | ||
| md5 | f14153bbd95fc26d9ccea77c49cf09b9 | ||
| sha256 | 27eab496d0b63d52c18cee063110d9d479523b58426bfcb58e420a5cae087c54 | ||
| ssdeep | 12288:aBVCrK2jsP3zv+FSF68GANNhWLS0B6L+FOCN+AzrnxdanvzFzho:SU7ecSgL6y+gk+rnxdarFu | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (15cnts)
| Level | Description |
|---|---|
| watch | A process attempted to delay the analysis task. |
| watch | Drops 61 unknown file mime types indicative of ransomware writing encrypted files back to disk |
| watch | Looks for the Windows Idle Time to determine the uptime |
| 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 | Creates executable files on the filesystem |
| notice | Drops an executable to the user AppData folder |
| notice | File has been identified by 7 AntiVirus engines on VirusTotal as malicious |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | Performs some HTTP requests |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
| info | This executable has a PDB path |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (25cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Win32_Trojan_Gen_1_0904B0_Zero | Win32 Trojan Emotet | binaries (download) |
| danger | Win_Trojan_Formbook_Zero | Used Formbook | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | ILProtector_Packer | ILProtector Packer | binaries (download) |
| warning | Microsoft_Office_File_Downloader_Zero | Microsoft Office File Downloader | binaries (download) |
| watch | Admin_Tool_IN_Zero | Admin Tool Sysinternals | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | UPX_Zero | UPX packed file | binaries (download) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (download) |
| notice | anti_vm_detect | Possibly employs anti-virtualization techniques | binaries (download) |
| info | Is_DotNET_DLL | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsDLL | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | Microsoft_Office_File_Zero | Microsoft Office File | 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 | Win32_Trojan_Gen_2_0904B0_Zero | Win32 Trojan Gen | binaries (download) |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (download) |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
Network (11cnts) ?
Suricata ids
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
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