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Windows Analysis Report 1RMZ62tUAl.exe
Overview
General Information
Detection
SmokeLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for submitted file
Benign windows process drops PE files
Yara detected SmokeLoader
System process connects to network (likely due to code injection or exploit)
Detected unpacking (changes PE section rights)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Checks if browser processes are running
Machine Learning detection for sample
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Deletes itself after installation
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Contains functionality to compare user and computer (likely to detect sandboxes)
Checks if the current machine is a virtual machine (disk enumeration)
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Drops files with a non-matching file extension (content does not match file extension)
Extensive use of GetProcAddress (often used to hide API calls)
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Contains functionality to retrieve information about pressed keystrokes
Uses Microsoft's Enhanced Cryptographic Provider
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
Process Tree |
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Malware Configuration |
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Threatname: SmokeLoader |
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{"C2 list": ["http://rsuehfidvdkfvk.top/", "http://rsuehfidvdkfvk.top/"]}
Yara Overview |
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Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_SmokeLoader | Yara detected SmokeLoader | Joe Security | ||
JoeSecurity_SmokeLoader | Yara detected SmokeLoader | Joe Security | ||
JoeSecurity_SmokeLoader_2 | Yara detected SmokeLoader | Joe Security | ||
JoeSecurity_SmokeLoader | Yara detected SmokeLoader | Joe Security | ||
JoeSecurity_SmokeLoader | Yara detected SmokeLoader | Joe Security | ||
Click to see the 8 entries |
Sigma Overview |
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No Sigma rule has matched |
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Jbx Signature Overview |
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Click to jump to signature section
Show All Signature Results
AV Detection: |
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Found malware configuration | Show sources |
Source: | Malware Configuration Extractor: |
Multi AV Scanner detection for submitted file | Show sources |
Source: | Virustotal: | Perma Link |
Multi AV Scanner detection for domain / URL | Show sources |
Source: | Virustotal: | Perma Link |
Multi AV Scanner detection for dropped file | Show sources |
Source: | ReversingLabs: |
Machine Learning detection for sample | Show sources |
Source: | Joe Sandbox ML: |
Machine Learning detection for dropped file | Show sources |
Source: | Joe Sandbox ML: |
Source: | Code function: | 19_2_02E83364 | |
Source: | Code function: | 19_2_02E83171 | |
Source: | Code function: | 19_2_02E83696 | |
Source: | Code function: | 19_2_02E81289 | |
Source: | Code function: | 19_2_02E8122F | |
Source: | Code function: | 19_2_02E811E6 | |
Source: | Code function: | 19_2_02E8213A | |
Source: | Code function: | 22_2_0011118D | |
Source: | Code function: | 22_2_0011165C | |
Source: | Code function: | 24_2_027D263E | |
Source: | Code function: | 24_2_027D245E | |
Source: | Code function: | 24_2_027D2404 | |
Source: | Code function: | 26_2_00331EA2 | |
Source: | Code function: | 28_2_027D126D | |
Source: | Code function: | 29_2_027D25A4 | |
Source: | Code function: | 29_2_027D2799 | |
Source: | Code function: | 31_2_027D1314 |
Source: | Static PE information: |
Source: | File opened: | Jump to behavior |
Source: | Binary string: | ||
Source: | Binary string: |
Source: | Code function: | 19_2_02E81EBA | |
Source: | Code function: | 19_2_02E82C81 | |
Source: | Code function: | 22_2_001114D8 | |
Source: | Code function: | 22_2_001113FE | |
Source: | Code function: | 28_2_027D1939 | |
Source: | Code function: | 28_2_027D1FFD | |
Source: | Code function: | 28_2_027D217C |
Source: | Code function: | 28_2_027D1B5B |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Networking: |
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System process connects to network (likely due to code injection or exploit) | Show sources |
Source: | Network Connect: | Jump to behavior | ||
Source: | Domain query: | |||
Source: | Domain query: |
C2 URLs / IPs found in malware configuration | Show sources |
Source: | URLs: | ||
Source: | URLs: |
Source: | ASN Name: | ||
Source: | ASN Name: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | HTTP traffic detected: |