ScreenShot
| Created | 2021.09.19 11:28 | Machine | s1_win7_x6402 |
| Filename | ZZZZZ.exe | ||
| Type | PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : malware | ||
| VT API (file) | 28 detected (AIDetect, malware2, FakeAlert, Unsafe, Attribute, HighConfidence, GenKryptik, FKHS, Malicious, LightStone, AGEN, CoinMinerInj, score, R441007, ai score=87, BScope, Nitol, Generic@ML, RDML, Tww+eivPTzuUb1eBxs1wQ, susgen, Tiny) | ||
| md5 | 2d42f56f58a4c19df022913160949c76 | ||
| sha256 | cb1bfed9b946adbcb897876432268c9bc453b4b489a6df99f5812d5f71b95ea7 | ||
| ssdeep | 98304:SFLzm8VI6LrLrF9XafiFlHP15bB3PoNLmiVN4:yzdPZPzbRPo5miV | ||
| imphash | 2a2a662be9dffc461398e7c94d0b55b4 | ||
| impfuzzy | 6:HbJq4wX0pyYJxSBS0H5sD4sIW0oFUAliPEcn:7Jq4wMY58xaPXn | ||
Network IP location
Signature (30cnts)
| Level | Description |
|---|---|
| warning | File has been identified by 28 AntiVirus engines on VirusTotal as malicious |
| warning | Generates some ICMP traffic |
| watch | Communicates with host for which no DNS query was performed |
| watch | Created a process named as a common system process |
| watch | Installs itself for autorun at Windows startup |
| watch | Network communications indicative of possible code injection originated from the process lsass.exe |
| watch | Tries to unhook Windows functions monitored by Cuckoo |
| notice | A process attempted to delay the analysis task. |
| 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 | Creates a suspicious process |
| notice | Creates executable files on the filesystem |
| notice | Drops a binary and executes it |
| notice | Drops an executable to the user AppData folder |
| 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 | Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| notice | Uses Windows utilities for basic Windows functionality |
| 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 | Uses Windows APIs to generate a cryptographic key |
Rules (11cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | themida_packer | themida packer | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | IsPE64 | (no description) | 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 | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (download) |
Network (11cnts) ?
Suricata ids
ET INFO Executable Download from dotted-quad Host
ET INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Possible External IP Lookup SSL Cert Observed (ipinfo.io)
ET INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Possible External IP Lookup SSL Cert Observed (ipinfo.io)
PE API
IAT(Import Address Table) Library
msvcrt.dll
0x7a10ac strlen
0x7a10b0 malloc
0x7a10b4 fopen
0x7a10b8 fwrite
0x7a10bc fclose
0x7a10c0 memset
0x7a10c4 getenv
0x7a10c8 sprintf
0x7a10cc __argc
0x7a10d0 __argv
0x7a10d4 _environ
0x7a10d8 _XcptFilter
0x7a10dc __set_app_type
0x7a10e0 _controlfp
0x7a10e4 __getmainargs
0x7a10e8 exit
kernel32.dll
0x7a10f0 CreateProcessA
0x7a10f4 CloseHandle
0x7a10f8 SetUnhandledExceptionFilter
EAT(Export Address Table) is none
msvcrt.dll
0x7a10ac strlen
0x7a10b0 malloc
0x7a10b4 fopen
0x7a10b8 fwrite
0x7a10bc fclose
0x7a10c0 memset
0x7a10c4 getenv
0x7a10c8 sprintf
0x7a10cc __argc
0x7a10d0 __argv
0x7a10d4 _environ
0x7a10d8 _XcptFilter
0x7a10dc __set_app_type
0x7a10e0 _controlfp
0x7a10e4 __getmainargs
0x7a10e8 exit
kernel32.dll
0x7a10f0 CreateProcessA
0x7a10f4 CloseHandle
0x7a10f8 SetUnhandledExceptionFilter
EAT(Export Address Table) is none