ScreenShot
| Created | 2023.03.07 09:49 | Machine | s1_win7_x6403 |
| Filename | cronoupdater.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) | 35 detected (AIDetectNet, GenericKD, Vse4, Attribute, HighConfidence, Malicious, DownLoader45, Infected, GenKD, ai score=89, Casdet, Detected, Artemis, TScope, unsafe, R06BH09C323, CLOUD, PossibleThreat) | ||
| md5 | f86b847a4d6112ee7e79510353e3a001 | ||
| sha256 | cd035c3e89adc19456e7fba6922637c7cc31dd7a28e607f65c9a2aa689180831 | ||
| ssdeep | 3072:xSSb7u+Sm1w1DePdSNlxEYVXR4ElxbN64tQ:wSbq61LUb32 | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (21cnts)
| Level | Description |
|---|---|
| danger | File has been identified by 35 AntiVirus engines on VirusTotal as malicious |
| warning | Generates some ICMP traffic |
| watch | A process attempted to delay the analysis task. |
| watch | A process performed obfuscation on information about the computer or sent it to a remote location indicative of CnC Traffic/Preperations. |
| watch | Deletes executed files from disk |
| watch | Looks for the Windows Idle Time to determine the uptime |
| 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 | Creates a suspicious process |
| notice | Creates executable files on the filesystem |
| notice | Drops an executable to the user AppData folder |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| 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 | Queries for the computername |
| info | This executable has a PDB path |
Rules (10cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| watch | Admin_Tool_IN_Zero | Admin Tool Sysinternals | binaries (download) |
| watch | UPX_Zero | UPX packed file | binaries (download) |
| 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 | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (download) |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
Network (5cnts) ?
Suricata ids
ET INFO Executable Download from dotted-quad Host
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 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
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