ScreenShot
| Created | 2024.01.26 09:11 | Machine | s1_win7_x6403 |
| Filename | rost.exe | ||
| Type | PE32 executable (GUI) Intel 80386, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : malware | ||
| VT API (file) | 38 detected (AIDetectMalware, Malicious, score, Zusy, unsafe, Save, Attribute, HighConfidence, high confidence, Enigma, Blacked, Scar, RisePro, Detected, ai score=87, HeurC, KVMH008, Sabsik, AA1G04, Eldorado, R632639, ZexaF, jHW@aKG4ybfk, BScope, Bitrep, Genetic, Probably Heur, ExeHeaderL, Static AI, Malicious PE) | ||
| md5 | 2f9214f932a930a4cdff2b48a3a8eded | ||
| sha256 | f969980852d4ccaf32b5700f4aa0934c853b1afa18c0a7f329e841d62cb35f46 | ||
| ssdeep | 24576:vpqzJdQmBHqhszkXEoiDYq4dXwQaN2K3yWds0JkKyV/aDdhCm2Ft:RqzHRUEoEYq4lXadsL4sF | ||
| imphash | 5ab723dc8d5af21b79dc301ed6a56a64 | ||
| impfuzzy | 12:c2cDvZGqA9AwDXRgKQcOx/0yNCPsKAJSn:clDRdWAwDOdxCTn | ||
Network IP location
Signature (65cnts)
| Level | Description |
|---|---|
| danger | Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually) |
| danger | Disables Windows Security features |
| danger | Executed a process and injected code into it |
| danger | File has been identified by 38 AntiVirus engines on VirusTotal as malicious |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Appends a known CryptoMix ransomware file extension to files that have been encrypted |
| watch | Attempts to access Bitcoin/ALTCoin wallets |
| watch | Attempts to create or modify system certificates |
| watch | Attempts to disable Windows Auto Updates |
| watch | Attempts to identify installed AV products by installation directory |
| watch | Attempts to stop active services |
| watch | Checks the CPU name from registry |
| watch | Checks the version of Bios |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Collects information about installed applications |
| watch | Communicates with host for which no DNS query was performed |
| watch | Connects to an IRC server |
| watch | Creates a slightly modified copy of itself |
| watch | Deletes a large number of files from the system indicative of ransomware |
| watch | Deletes executed files from disk |
| watch | Detects VirtualBox through the presence of a file |
| watch | Drops 157 unknown file mime types indicative of ransomware writing encrypted files back to disk |
| watch | Executes one or more WMI queries |
| watch | Harvests credentials from local email clients |
| 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 |
| watch | Network activity contains more than one unique useragent |
| 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 |
| watch | Uses Sysinternals tools in order to add additional command line functionality |
| 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 | An executable file was downloaded by the processes rost.exe |
| notice | Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) |
| 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 | 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 | Looks up the external IP address |
| 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 | Searches running processes potentially to identify processes for sandbox evasion |
| notice | Sends data using the HTTP POST Method |
| notice | Steals private information from local Internet browsers |
| notice | Terminates another process |
| 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 | The executable contains unknown PE section names indicative of a packer (could be a false positive) |
| info | Tries to locate where the browsers are installed |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (46cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | detect_Redline_Stealer_V2 | (no description) | binaries (download) |
| danger | MALWARE_Win_VT_RedLine | Detects RedLine infostealer | binaries (download) |
| danger | RedLine_Stealer_b_Zero | RedLine stealer | binaries (download) |
| danger | RedLine_Stealer_m_Zero | RedLine stealer | memory |
| danger | Win_Amadey_Zero | Amadey bot | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | hide_executable_file | Hide executable file | binaries (download) |
| warning | NSIS_Installer | Null Soft Installer | binaries (download) |
| warning | UltraVNC_Zero | UltraVNC | binaries (download) |
| watch | Admin_Tool_IN_Zero | Admin Tool Sysinternals | binaries (download) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (upload) |
| 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) |
| notice | anti_vm_detect | Possibly employs anti-virtualization techniques | binaries (upload) |
| notice | Generic_PWS_Memory_Zero | PWS Memory | memory |
| notice | ScreenShot | Take ScreenShot | memory |
| info | anti_dbg | Checks if being debugged | memory |
| info | bmp_file_format | bmp file format | binaries (download) |
| info | CAB_file_format | CAB archive file | binaries (download) |
| info | chm_file_format | chm file format | binaries (download) |
| 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 | docx | Word 2007 file format detection | binaries (download) |
| info | icon_file_format | icon file format | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | IsDLL | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | IsPE64 | (no description) | binaries (download) |
| info | JPEG_Format_Zero | JPEG Format | binaries (download) |
| info | Microsoft_Office_File_Zero | Microsoft Office File | binaries (download) |
| info | mzp_file_format | MZP(Delphi) file format | 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 | PNG_Format_Zero | PNG Format | binaries (download) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
| info | zip_file_format | ZIP file format | binaries (download) |
Network (53cnts) ?
Suricata ids
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
ET MALWARE [ANY.RUN] RisePro TCP (Token)
ET MALWARE Suspected RisePro TCP Heartbeat Packet
ET MALWARE [ANY.RUN] RisePro TCP (External IP)
ET MALWARE [ANY.RUN] RisePro TCP (Activity)
ET MALWARE [ANY.RUN] RisePro TCP (Exfiltration)
ET DROP Spamhaus DROP Listed Traffic Inbound group 21
ET INFO Executable Download from dotted-quad Host
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
ET INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging)
ET MALWARE Win32/Amadey Host Fingerprint Exfil (POST) M2
ET INFO Dotted Quad Host DLL Request
ET INFO Microsoft net.tcp Connection Initialization Activity
ET MALWARE Redline Stealer TCP CnC Activity
ET MALWARE [ANY.RUN] RedLine Stealer Family Related (MC-NMF Authorization)
ET MALWARE Redline Stealer TCP CnC - Id1Response
ET MALWARE Redline Stealer Family Activity (Response)
ET USER_AGENTS Observed Suspicious UA (NSIS_Inetc (Mozilla))
ET COINMINER CoinMiner Domain in DNS Lookup (pool .hashvault .pro)
ET HUNTING Download Request Containing Suspicious Filename - Crypted
ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)
ET MALWARE [ANY.RUN] RisePro TCP (Token)
ET MALWARE Suspected RisePro TCP Heartbeat Packet
ET MALWARE [ANY.RUN] RisePro TCP (External IP)
ET MALWARE [ANY.RUN] RisePro TCP (Activity)
ET MALWARE [ANY.RUN] RisePro TCP (Exfiltration)
ET DROP Spamhaus DROP Listed Traffic Inbound group 21
ET INFO Executable Download from dotted-quad Host
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
ET INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging)
ET MALWARE Win32/Amadey Host Fingerprint Exfil (POST) M2
ET INFO Dotted Quad Host DLL Request
ET INFO Microsoft net.tcp Connection Initialization Activity
ET MALWARE Redline Stealer TCP CnC Activity
ET MALWARE [ANY.RUN] RedLine Stealer Family Related (MC-NMF Authorization)
ET MALWARE Redline Stealer TCP CnC - Id1Response
ET MALWARE Redline Stealer Family Activity (Response)
ET USER_AGENTS Observed Suspicious UA (NSIS_Inetc (Mozilla))
ET COINMINER CoinMiner Domain in DNS Lookup (pool .hashvault .pro)
ET HUNTING Download Request Containing Suspicious Filename - Crypted
PE API
IAT(Import Address Table) Library
kernel32.dll
0x84513c VirtualAlloc
0x845140 VirtualFree
0x845144 GetModuleHandleA
0x845148 GetProcAddress
0x84514c ExitProcess
0x845150 LoadLibraryA
user32.dll
0x845158 MessageBoxA
advapi32.dll
0x845160 RegCloseKey
oleaut32.dll
0x845168 SysFreeString
gdi32.dll
0x845170 CreateFontA
shell32.dll
0x845178 ShellExecuteA
version.dll
0x845180 GetFileVersionInfoA
ole32.dll
0x845188 CoInitializeEx
ws2_32.dll
0x845190 WSAStartup
crypt32.dll
0x845198 CryptUnprotectData
shlwapi.dll
0x8451a0 PathFindExtensionA
gdiplus.dll
0x8451a8 GdiplusStartup
setupapi.dll
0x8451b0 SetupDiEnumDeviceInterfaces
ntdll.dll
0x8451b8 RtlUnicodeStringToAnsiString
EAT(Export Address Table) is none
kernel32.dll
0x84513c VirtualAlloc
0x845140 VirtualFree
0x845144 GetModuleHandleA
0x845148 GetProcAddress
0x84514c ExitProcess
0x845150 LoadLibraryA
user32.dll
0x845158 MessageBoxA
advapi32.dll
0x845160 RegCloseKey
oleaut32.dll
0x845168 SysFreeString
gdi32.dll
0x845170 CreateFontA
shell32.dll
0x845178 ShellExecuteA
version.dll
0x845180 GetFileVersionInfoA
ole32.dll
0x845188 CoInitializeEx
ws2_32.dll
0x845190 WSAStartup
crypt32.dll
0x845198 CryptUnprotectData
shlwapi.dll
0x8451a0 PathFindExtensionA
gdiplus.dll
0x8451a8 GdiplusStartup
setupapi.dll
0x8451b0 SetupDiEnumDeviceInterfaces
ntdll.dll
0x8451b8 RtlUnicodeStringToAnsiString
EAT(Export Address Table) is none