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Windows
Analysis Report
PROFORMA INVOICE.xlsx
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Sigma detected: EQNEDT32.EXE connecting to internet
Yara detected AntiVM3
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Sigma detected: File Dropped By EQNEDT32EXE
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Shellcode detected
Office equation editor drops PE file
Tries to detect virtualization through RDTSC time measurements
Adds a directory exclusion to Windows Defender
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to harvest and steal browser information (history, passwords, etc)
Sample uses process hollowing technique
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
.NET source code contains method to dynamically call methods (often used by packers)
Queues an APC in another process (thread injection)
Machine Learning detection for dropped file
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Office equation editor establishes network connection
Drops PE files to the user root directory
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
HTTP GET or POST without a user agent
Downloads executable code via HTTP
Contains long sleeps (>= 3 min)
Abnormal high CPU Usage
Potential document exploit detected (unknown TCP traffic)
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Contains functionality to download and execute PE files
Checks if the current process is being debugged
Drops PE files to the user directory
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)
Queries the volume information (name, serial number etc) of a device
Yara signature match
Internet Provider seen in connection with other malware
Found potential string decryption / allocating functions
Contains functionality to call native functions
Potential document exploit detected (performs DNS queries)
Contains functionality for execution timing, often used to detect debuggers
Searches the installation path of Mozilla Firefox
Enables debug privileges
Found inlined nop instructions (likely shell or obfuscated code)
Office Equation Editor has been started
Contains functionality to download and launch executables
Potential document exploit detected (performs HTTP gets)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w7x64
- EXCEL.EXE (PID: 2816 cmdline:
"C:\Progra m Files\Mi crosoft Of fice\Offic e14\EXCEL. EXE" /auto mation -Em bedding MD5: D53B85E21886D2AF9815C377537BCAC3)
- EQNEDT32.EXE (PID: 2212 cmdline:
"C:\Progra m Files\Co mmon Files \Microsoft Shared\EQ UATION\EQN EDT32.EXE" -Embeddin g MD5: A87236E214F6D42A65F5DEDAC816AEC8) - vbc.exe (PID: 1200 cmdline:
"C:\Users\ Public\vbc .exe" MD5: F7ECD12D134AAF3541396C78337CE672) - powershell.exe (PID: 2532 cmdline:
C:\Windows \System32\ WindowsPow erShell\v1 .0\powersh ell.exe" A dd-MpPrefe rence -Exc lusionPath "C:\Users \user\AppD ata\Roamin g\dDqpEdJE tzi.exe MD5: 92F44E405DB16AC55D97E3BFE3B132FA) - schtasks.exe (PID: 2452 cmdline:
C:\Windows \System32\ schtasks.e xe" /Creat e /TN "Upd ates\dDqpE dJEtzi" /X ML "C:\Use rs\user\Ap pData\Loca l\Temp\tmp 7282.tmp MD5: 2003E9B15E1C502B146DAD2E383AC1E3) - vbc.exe (PID: 1072 cmdline:
C:\Users\P ublic\vbc. exe MD5: F7ECD12D134AAF3541396C78337CE672) - explorer.exe (PID: 1860 cmdline:
C:\Windows \Explorer. EXE MD5: 38AE1B3C38FAEF56FE4907922F0385BA) - mstsc.exe (PID: 172 cmdline:
C:\Windows \SysWOW64\ mstsc.exe MD5: 4676AAA9DDF52A50C829FEDB4EA81E54) - firefox.exe (PID: 1720 cmdline:
C:\Program Files (x8 6)\Mozilla Firefox\F irefox.exe MD5: C2D924CE9EA2EE3E7B7E6A7C476619CA)
- cleanup
{"C2 list": ["www.admincost.com/n6g4/"], "decoy": ["bw589jumpb.xyz", "lojas-marias.com", "gadgersvip.com", "zeavd.com", "moment4miracles.com", "wildcanetours.com", "executivetravelandlogistics.com", "uspplongee.com", "schilova.online", "smoothie-optics.com", "masterima.net", "kickball.site", "theastralark.com", "nick-sylvestro.com", "properscooter.com", "wave-thermodynamics.com", "bitcollide.com", "xed5555.com", "tsue-sangyo.com", "lucianaejoaoalberto.com", "6084pinelake.info", "plentyhearty.com", "findmylostphone.me", "cliffpassphotographyllc.com", "goddessboi.com", "vulkan-platinum-online.info", "jumpn-giveaway.online", "linymar.xyz", "topgir.site", "oifreunion.com", "lewks.beauty", "servellobody.com", "eagle-five.com", "agelessfish.com", "daulat-kantorbahasamalut.com", "zombarias.com", "chimneyrepairbiloxi.com", "starline-pools.com", "financeenovationinc.com", "sakvoyge.online", "46458.pet", "babyminer.xyz", "alcosto.club", "aeroyogabrasil.com", "cellphstudy.com", "bldh45.xyz", "sguoffcampusrentals.com", "nehalooks.com", "employeebnsf.com", "duniacuan.online", "running-diary.site", "o-taguro.com", "iacli.run", "cariniclinicalconsulting.com", "btcspay.xyz", "funaoka-watanabedent.com", "jamesreadtanusa.com", "dems-clicks.com", "dowsjonesc.top", "joseikinmadoguchi.com", "hulizb6.com", "luxurybathshowers.com", "kapamilla.com", "duowb.com"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Click to see the 37 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Click to see the 20 entries |
Exploits |
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Source: | Author: Joe Security: |
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⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
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Exploits |
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Source: | Process created: | |||
Source: | Process created: | Jump to behavior |
Source: | Network connect: | Jump to behavior |
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Source: | File opened: | Jump to behavior |
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Source: | Code function: | 11_2_000D1660 |
Software Vulnerabilities |
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Source: | Code function: | 2_2_03690401 | |
Source: | Code function: | 2_2_03690462 | |
Source: | Code function: | 2_2_03690396 | |
Source: | Code function: | 2_2_0369044B | |
Source: | Code function: | 2_2_0369030A | |
Source: | Code function: | 2_2_03690480 | |
Source: | Code function: | 2_2_03690326 | |
Source: | Code function: | 2_2_036902F1 | |
Source: | Code function: | 2_2_036903B0 |
Source: | TCP traffic: |
Source: | DNS query: |
Source: | Code function: | 9_2_00417317 |
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Networking |
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Source: | Network Connect: | Jump to behavior | ||
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Source: | HTTP traffic detected: | ||
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