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Windows Analysis Report RFQ9003930 New Order.doc
Overview
General Information
| Sample Name: | RFQ9003930 New Order.doc |
| Analysis ID: | 491362 |
| MD5: | 514ab9ff13f08e764db59c3a79d95771 |
| SHA1: | 33b2aee2f0e57a080eb6711591e4e38e9324621c |
| SHA256: | 286151dbc2feace2a895ff2b71cc0f7e46708aedc8ca16d6a86ba283c5dcdf21 |
| Tags: | docFormbook |
| Infos: | |
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Most interesting Screenshot:  |
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Detection
FormBook
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Found malware configuration
Sigma detected: EQNEDT32.EXE connecting to internet
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Yara detected AntiVM3
Sigma detected: Droppers Exploiting CVE-2017-11882
System process connects to network (likely due to code injection or exploit)
Sigma detected: File Dropped By EQNEDT32EXE
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Sample uses process hollowing technique
Maps a DLL or memory area into another process
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Modifies the prolog of user mode functions (user mode inline hooks)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Office equation editor drops PE file
Queues an APC in another process (thread injection)
.NET source code contains very large strings
Tries to detect virtualization through RDTSC time measurements
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Potential document exploit detected (performs DNS queries)
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Downloads executable code via HTTP
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Found inlined nop instructions (likely shell or obfuscated code)
Potential document exploit detected (unknown TCP traffic)
PE file contains strange resources
Drops PE files
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Office Equation Editor has been started
Checks if the current process is being debugged
Potential document exploit detected (performs HTTP gets)
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
AV Detection: |
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| Found malware configuration |
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| Multi AV Scanner detection for submitted file |
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| Yara detected FormBook |
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| Antivirus detection for URL or domain |
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| Multi AV Scanner detection for domain / URL |
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Virustotal: |
Perma Link | ||
| Multi AV Scanner detection for dropped file |
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ReversingLabs: |
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| Antivirus or Machine Learning detection for unpacked file |
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Exploits: |
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| Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) |
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Jump to behavior | ||
| Office Equation Editor has been started |
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File opened: |
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Software Vulnerabilities: |
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| Potential document exploit detected (performs DNS queries) |
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| Found inlined nop instructions (likely shell or obfuscated code) |
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Code function: |
4_2_020B9144 | |
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Code function: |
4_2_020B9EB0 | |
| Potential document exploit detected (unknown TCP traffic) |
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TCP traffic: |
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| Potential document exploit detected (performs HTTP gets) |
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Networking: |
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| System process connects to network (likely due to code injection or exploit) |
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Network Connect: |
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| C2 URLs / IPs found in malware configuration |
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| Internet Provider seen in connection with other malware |
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| HTTP GET or POST without a user agent |
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HTTP traffic detected: |
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| IP address seen in connection with other malware |
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| Downloads executable code via HTTP |
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