ScreenShot
| Created | 2021.04.20 09:40 | Machine | s1_win7_x6401 |
| Filename | Wvlvhrl.pdf | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : clean | ||
| VT API (file) | 18 detected (malicious, high confidence, Packed2, Artemis, Unsafe, confidence, ZemsilF, pm0@a4QZ61, Miner, MalwareX, Wacatac, score, susgen) | ||
| md5 | 149b0568e10ba3994c5c88440221fb2e | ||
| sha256 | d5825a48b525fa8f664ff98a98aec5164bbccab0a1bad2d17bb2aafebd148ffa | ||
| ssdeep | 6144:K35ZtfUeAIQHuA36cdrUnpA7WOpDDYH/USK6RywpiBQ:K33eeAItC664a7W0DDg/JEn | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (40cnts)
| 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 access Bitcoin/ALTCoin wallets |
| watch | Checks the CPU name from registry |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Collects information about installed applications |
| watch | Deletes executed files from disk |
| watch | File has been identified by 18 AntiVirus engines on VirusTotal as malicious |
| watch | Harvests credentials from local email clients |
| watch | Installs itself for autorun at Windows startup |
| 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 | An executable file was downloaded by the process wvlvhrl.pdf |
| 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 an executable to the user AppData folder |
| notice | Executes one or more WMI queries |
| 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 | Potentially malicious URLs were found in the process memory dump |
| notice | Queries for potentially installed applications |
| notice | Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation |
| notice | Sends data using the HTTP POST Method |
| notice | Steals private information from local Internet browsers |
| 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 | One or more processes crashed |
| info | Queries for the computername |
| info | Tries to locate where the browsers are installed |
Rules (43cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Win32_Trojan_Gen_1_0904B0_Zero | Win32 Trojan Emotet | binaries (download) |
| 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 | IsDLL | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | JPEG_Format_Zero | JPEG Format | binaries (download) |
| info | OS_Processor_Check_Zero | OS Processor Check Signature Zero | binaries (download) |
| info | PE_Header_Zero | PE File Signature Zero | binaries (download) |
| info | PE_Header_Zero | PE File Signature Zero | binaries (upload) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
| info | cred_ff | Steal Firefox credential | binaries (download) |
| info | HasDebugData | DebugData Check | binaries (download) |
| info | HasDebugData | DebugData Check | binaries (upload) |
| info | HasDigitalSignature | DigitalSignature Check | binaries (download) |
| info | HasOverlay | Overlay Check | binaries (download) |
| info | HasRichSignature | Rich Signature Check | binaries (download) |
| info | IsConsole | (no description) | binaries (download) |
| info | IsNET_EXE | (no description) | binaries (download) |
| info | IsNET_EXE | (no description) | binaries (upload) |
| info | IsPacked | Entropy Check | binaries (download) |
| info | IsPacked | Entropy Check | binaries (upload) |
| info | IsWindowsGUI | (no description) | binaries (download) |
| info | IsWindowsGUI | (no description) | binaries (upload) |
| info | ldpreload | (no description) | binaries (download) |
| info | MinGW_1 | (no description) | binaries (download) |
| info | network_dns | Communications use DNS | binaries (download) |
| info | network_tcp_listen | Listen for incoming communication | binaries (download) |
| info | network_tcp_listen | Listen for incoming communication | memory |
| info | network_tcp_socket | Communications over RAW socket | binaries (download) |
| info | Str_Win32_Winsock2_Library | Match Winsock 2 API library declaration | binaries (download) |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (download) |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
| info | win_files_operation | Affect private profile | binaries (download) |
| info | win_files_operation | Affect private profile | memory |
| info | win_mutex | Create or check mutex | binaries (download) |
| info | win_registry | Affect system registries | binaries (download) |
| info | win_token | Affect system token | binaries (download) |
Network (18cnts) ?
Suricata ids
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Data POST to an image file (jpg)
ET HUNTING Suspicious EXE Download Content-Type image/jpeg
ET HUNTING Suspicious Zipped Filename in Outbound POST Request (screenshot.) M2
ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
ET HUNTING HTTP POST to XYZ TLD Containing Pass - Possible Phishing
ET POLICY Data POST to an image file (jpg)
ET HUNTING Suspicious EXE Download Content-Type image/jpeg
ET HUNTING Suspicious Zipped Filename in Outbound POST Request (screenshot.) M2
ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
ET HUNTING HTTP POST to XYZ TLD Containing Pass - Possible Phishing
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