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Windows
Analysis Report
Deposit_Receipt.xlsx
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
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)
Sigma detected: Suspicius Add Task From User AppData Temp
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Sigma detected: Execution from Suspicious Folder
Sigma detected: Powershell Defender Exclusion
.NET source code contains method to dynamically call methods (often used by packers)
Office equation editor drops PE file
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Machine Learning detection for dropped file
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Adds a directory exclusion to Windows Defender
Drops PE files to the user root directory
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Uses schtasks.exe or at.exe to add and modify task schedules
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
Downloads executable code via HTTP
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Potential document exploit detected (unknown TCP traffic)
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
Drops PE files to the user directory
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
- System is w7x64
- EXCEL.EXE (PID: 2244 cmdline:
"C:\Progra m Files\Mi crosoft Of fice\Offic e14\EXCEL. EXE" /auto mation -Em bedding MD5: D53B85E21886D2AF9815C377537BCAC3)
- EQNEDT32.EXE (PID: 2412 cmdline:
"C:\Progra m Files\Co mmon Files \Microsoft Shared\EQ UATION\EQN EDT32.EXE" -Embeddin g MD5: A87236E214F6D42A65F5DEDAC816AEC8) - vbc.exe (PID: 2200 cmdline:
"C:\Users\ Public\vbc .exe" MD5: 076B5C48111AC20DE4E6F72CFA3393F1) - powershell.exe (PID: 1876 cmdline:
C:\Windows \System32\ WindowsPow erShell\v1 .0\powersh ell.exe" A dd-MpPrefe rence -Exc lusionPath "C:\Users \user\AppD ata\Roamin g\ubRPPGAH BbheAf.exe MD5: 92F44E405DB16AC55D97E3BFE3B132FA) - schtasks.exe (PID: 1184 cmdline:
C:\Windows \System32\ schtasks.e xe" /Creat e /TN "Upd ates\ubRPP GAHBbheAf" /XML "C:\ Users\user \AppData\L ocal\Temp\ tmp61B1.tm p MD5: 2003E9B15E1C502B146DAD2E383AC1E3) - vbc.exe (PID: 2152 cmdline:
C:\Users\P ublic\vbc. exe MD5: 076B5C48111AC20DE4E6F72CFA3393F1) - explorer.exe (PID: 1764 cmdline:
C:\Windows \Explorer. EXE MD5: 38AE1B3C38FAEF56FE4907922F0385BA) - rundll32.exe (PID: 1136 cmdline:
C:\Windows \SysWOW64\ rundll32.e xe MD5: 51138BEEA3E2C21EC44D0932C71762A8)
- cleanup
{"C2 list": ["www.eagle-meter.com/nt3f/"], "decoy": ["tricyclee.com", "kxsw999.com", "wisteria-pavilion.com", "bellaclancy.com", "promissioskincare.com", "hzy001.xyz", "checkouthomehd.com", "soladere.com", "point4sales.com", "socalmafia.com", "libertadysarmiento.online", "nftthirty.com", "digitalgoldcryptostock.net", "tulekiloscaird.com", "austinfishandchicken.com", "wlxxch.com", "mgav51.xyz", "landbanking.global", "saprove.com", "babyfaces.skin", "elainemaxwellcoaching.com", "1388xc.com", "juveniscloud.com", "bsauksjon.com", "the-waterkooler.com", "comment-changer-sa-vie.com", "psmcnd.top", "rhodesleadingedge.com", "mccuelawfirm.com", "skinnscience.club", "hype-clicks.com", "liaojinc.xyz", "okmakers.com", "ramblertour.online", "wickedhunterworld.com", "fit-threads.com", "cookidoo.website", "magentabin.com", "pynch1.com", "best-paper-to-know-today.info", "allmight.net", "monicraftsprintables.com", "avataroasis.com", "10dian-4.com", "cozastore.net", "capitalcased.com", "spacezanome.xyz", "feiyangmi.com", "11opus.com", "getinteriorsolution.com", "tidyhutstore.com", "amazingpomskyfamily.com", "tfcvintage.com", "halfanape.com", "rotakb.com", "martinasfood.com", "the-thanks.com", "mithilmehta.com", "em-photo.art", "primerepro.com", "lankasirinspa.com", "gtbaibang.com", "zealandiatobacco.com", "deepikatransportpackers.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 31 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 13 entries |
Exploits |
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Source: | Author: Joe Security: |
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System Summary |
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Source: | Author: Florian Roth: |
Source: | Author: Oleg Kolesnikov @securonix invrep_de, oscd.community, Florian Roth, Christian Burkard: |
Source: | Author: frack113: |
Source: | Author: Florian Roth: |
Source: | Author: Florian Roth: |
Source: | Author: Florian Roth: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
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Networking |
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Source: | Network Connect: | Jump to behavior | ||
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