ScreenShot
| Created | 2021.09.19 11:32 | Machine | s1_win7_x6402 |
| Filename | @XWELOFF_LZT.exe | ||
| Type | PE32 executable (console) 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) | |||
| md5 | 90a24f55c7665b24ed0d3492f0bc4b6a | ||
| sha256 | 8486a418f9f04f24f3792559221ef2f13b613f9a6fab066a264211e52638fad7 | ||
| ssdeep | 1536:5e1U7b1OCMg3JtKSHzYZ+HxjIPjbuRGdDnhuyq/dA+1dbknElG6qTaoigKu:0385MZ+HVIHvDnYyOdA6kE4au | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (32cnts)
| Level | Description |
|---|---|
| watch | A process performed obfuscation on information about the computer or sent it to a remote location indicative of CnC Traffic/Preperations. |
| watch | Checks for the presence of known windows from debuggers and forensic tools |
| watch | Collects information about installed applications |
| watch | Communicates with host for which no DNS query was performed |
| watch | Executes one or more WMI queries |
| watch | Harvests credentials from local FTP client softwares |
| watch | Installs itself for autorun at Windows startup |
| 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 | An executable file was downloaded by the process @xweloff_lzt.exe |
| 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 | Executes one or more WMI queries which can be used to identify virtual machines |
| 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 | 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 | Steals private information from local Internet browsers |
| 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 | Tries to locate where the browsers are installed |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (19cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (upload) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (download) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (upload) |
| 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 (upload) |
| info | IsPE64 | (no description) | binaries (download) |
| info | OS_Processor_Check_Zero | OS Processor Check | binaries (download) |
| info | OS_Processor_Check_Zero | OS Processor Check | binaries (upload) |
| info | PE_Header_Zero | PE File Signature | binaries (download) |
| info | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | PNG_Format_Zero | PNG Format | binaries (download) |
| 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 (19cnts) ?
Suricata ids
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET INFO TLS Handshake Failure
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
ET DNS Query for .su TLD (Soviet Union) Often Malware Related
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET INFO TLS Handshake Failure
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
ET DNS Query for .su TLD (Soviet Union) Often Malware Related
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