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Analysis Report mal.dll
Overview
General Information
| Sample Name: | mal.dll |
| Analysis ID: | 341461 |
| MD5: | 640cf281c09e54fab9c5d0153dffc042 |
| SHA1: | 9ae08274286b72b5dab240645af0f513dab2852d |
| SHA256: | a2fa5a4d18033e67a7c0477e69acd03a61808c31e24dd9c120106fec161012ef |
| Tags: | brtdllgoziisfbursnif |
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Most interesting Screenshot:  |
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Detection
Gozi Ursnif
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Detected Gozi e-Banking trojan
Found malware configuration
Multi AV Scanner detection for submitted file
Sigma detected: Dot net compiler compiles file from suspicious location
Yara detected Ursnif
Allocates memory in foreign processes
Changes memory attributes in foreign processes to executable or writable
Compiles code for process injection (via .Net compiler)
Creates a thread in another existing process (thread injection)
Hooks registry keys query functions (used to hide registry keys)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the export address table of user mode modules (user mode EAT hooks)
Modifies the import address table of user mode modules (user mode IAT hooks)
Modifies the prolog of user mode functions (user mode inline hooks)
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious Csc.exe Source File Folder
Suspicious powershell command line found
Writes or reads registry keys via WMI
Writes registry values via WMI
Writes to foreign memory regions
Compiles C# or VB.Net code
Contains capabilities to detect virtual machines
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Contains functionality to launch a process as a different user
Contains functionality to query CPU information (cpuid)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
PE file does not import any functions
Queries the volume information (name, serial number etc) of a device
Registers a DLL
Sample file is different than original file name gathered from version info
Searches for the Microsoft Outlook file path
Tries to load missing DLLs
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Classification
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| Found malware configuration |
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| Multi AV Scanner detection for submitted file |
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Compliance: |
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| Uses 32bit PE files |
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| Uses new MSVCR Dlls |
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| Uses secure TLS version for HTTPS connections |
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| Contains modern PE file flags such as dynamic base (ASLR) or NX |
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| Binary contains paths to debug symbols |
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Code function: |
1_2_04A1056C | |
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1_2_049FBF1E | |
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1_2_04A0AF0E | |
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1_2_04A09363 | |
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Code function: |
1_2_04A05ECD | |
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| IP address seen in connection with other malware |
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| JA3 SSL client fingerprint seen in connection with other malware |
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