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Windows Analysis Report
TAX INVOICE - NBO2506000632.xlam.xlsx

Overview

General Information

Sample name:	TAX INVOICE - NBO2506000632.xlam.xlsx
Analysis ID:	1581207
MD5:	a866e44919d15b19cb0bf0686c422fb9
SHA1:	0525eef57577d546c234f603b4da4486259b3fa7
SHA256:	a2e94cb25566b2f893c2c5be8f52ef5188f685d85d55e2f87ac4317d081a280d
Tags:	AgentTeslaxlamxlsxuser-abuse_ch
Infos:

Detection

Score:	64
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Document misses a certain OLE stream usually present in this Microsoft Office document type

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

Sample execution stops while process was sleeping (likely an evasion)

Yara signature match

Classification

Process Tree

System is w10x64

EXCEL.EXE (PID: 7532 cmdline: "C:\Program Files (x86)\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding MD5: 4A871771235598812032C822E6F68F19)

splwow64.exe (PID: 5304 cmdline: C:\Windows\splwow64.exe 12288 MD5: 77DE7761B037061C7C112FD3C5B91E73)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
sheet1.xml	INDICATOR_XML_LegacyDrawing_AutoLoad_Document	detects AutoLoad documents using LegacyDrawing	ditekSHen	0x24c3:$s1: <legacyDrawing r:id=" 0x24eb:$s2: <oleObject progId=" 0x2526:$s3: autoLoad="true"

Sigma Signatures

⊘No Sigma rule has matched

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: TAX INVOICE - NBO2506000632.xlam.xlsx

Avira: detected

Multi AV Scanner detection for submitted file

Source: TAX INVOICE - NBO2506000632.xlam.xlsx	Virustotal: Detection: 50%			Perma Link
Source: TAX INVOICE - NBO2506000632.xlam.xlsx	ReversingLabs: Detection: 68%

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File opened: C:\Program Files (x86)\Microsoft Office\root\vfs\SystemX86\MSVCR100.dll

Jump to behavior

Source: excel.exe

Memory has grown: Private usage: 2MB later: 98MB

System Summary

Malicious sample detected (through community Yara rule)

Source: sheet1.xml, type: SAMPLE

Matched rule: detects AutoLoad documents using LegacyDrawing Author: ditekSHen

Source: TAX INVOICE - NBO2506000632.xlam.xlsx

OLE stream indicators for Word, Excel, PowerPoint, and Visio: all false

Source: sheet1.xml, type: SAMPLE

Matched rule: INDICATOR_XML_LegacyDrawing_AutoLoad_Document author = ditekSHen, description = detects AutoLoad documents using LegacyDrawing

Source: classification engine

Classification label: mal64.winXLSX@3/4@0/0

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File created: C:\Program Files (x86)\Microsoft Office\root\vfs\Common AppData\Microsoft\Office\Heartbeat\HeartbeatCache.xml

Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File created: C:\Users\user\Desktop\~$TAX INVOICE - NBO2506000632.xlam.xlsx

Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Temp\{E41B2A6C-638F-4C35-910F-5A55FCD7A55D} - OProcSessId.dat

Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File read: C:\Users\desktop.ini

Jump to behavior

Source: TAX INVOICE - NBO2506000632.xlam.xlsx	Virustotal: Detection: 50%
Source: TAX INVOICE - NBO2506000632.xlam.xlsx	ReversingLabs: Detection: 68%

Source: unknown	Process created: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE "C:\Program Files (x86)\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process created: C:\Windows\splwow64.exe C:\Windows\splwow64.exe 12288
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process created: C:\Windows\splwow64.exe C:\Windows\splwow64.exe 12288	Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3EE60F5C-9BAD-4CD8-8E21-AD2D001D06EB}\InprocServer32

Jump to behavior

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: TAX INVOICE - NBO2506000632.xlam.xlsx	Initial sample: OLE zip file path = xl/media/image1.jpg
Source: TAX INVOICE - NBO2506000632.xlam.xlsx	Initial sample: OLE zip file path = xl/calcChain.xml

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

Key opened: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Common

Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

File opened: C:\Program Files (x86)\Microsoft Office\root\vfs\SystemX86\MSVCR100.dll

Jump to behavior

Source: TAX INVOICE - NBO2506000632.xlam.xlsx

Initial sample: OLE indicators vbamacros = False

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: FAILCRITICALERRORS \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\splwow64.exe	Process information set: NOALIGNMENTFAULTEXCEPT \| NOOPENFILEERRORBOX	Jump to behavior

Source: C:\Windows\splwow64.exe

Window / User API: threadDelayed 943

Jump to behavior

Source: C:\Windows\splwow64.exe	Last function: Thread delayed
Source: C:\Windows\splwow64.exe	Last function: Thread delayed

Source: C:\Windows\splwow64.exe	Thread delayed: delay time: 120000			Jump to behavior
Source: C:\Windows\splwow64.exe	Thread delayed: delay time: 120000			Jump to behavior

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE

Process information queried: ProcessInformation

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	1 Process Injection	2 Masquerading	OS Credential Dumping	1 Process Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 Extra Window Memory Injection	1 Virtualization/Sandbox Evasion	LSASS Memory	1 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 Process Injection	Security Account Manager	1 Application Window Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 Extra Window Memory Injection	NTDS	1 File and Directory Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	Software Packing	LSA Secrets	1 System Information Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact

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

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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
TAX INVOICE - NBO2506000632.xlam.xlsx	51%	Virustotal		Browse
TAX INVOICE - NBO2506000632.xlam.xlsx	68%	ReversingLabs	Document-Office.Exploit.CVE-2017-11882
TAX INVOICE - NBO2506000632.xlam.xlsx	100%	Avira	EXP/CVE-2017-11882.Gen

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
s-part-0035.t-0009.t-msedge.net	13.107.246.63	true	false		high

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1581207
Start date and time:	2024-12-27 08:34:14 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 40s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowsofficecookbook.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	11
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 AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	TAX INVOICE - NBO2506000632.xlam.xlsx
Detection:	MAL
Classification:	mal64.winXLSX@3/4@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .xlsx Found Word or Excel or PowerPoint or XPS Viewer Attach to Office via COM Active ActiveX Object Scroll down Close Viewer

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, conhost.exe, svchost.exe
Excluded IPs from analysis (whitelisted): 52.109.32.97, 52.113.194.132, 52.109.28.47, 23.218.208.109, 52.168.117.175, 52.182.141.63, 20.190.147.5, 52.149.20.212, 13.107.246.63
Excluded domains from analysis (whitelisted): slscr.update.microsoft.com, otelrules.afd.azureedge.net, eur.roaming1.live.com.akadns.net, fs-wildcard.microsoft.com.edgekey.net, fs-wildcard.microsoft.com.edgekey.net.globalredir.akadns.net, ecs-office.s-0005.s-msedge.net, roaming.officeapps.live.com, login.live.com, e16604.g.akamaiedge.net, officeclient.microsoft.com, ukw-azsc-config.officeapps.live.com, prod.fs.microsoft.com.akadns.net, ecs.office.com, self-events-data.trafficmanager.net, fs.microsoft.com, otelrules.azureedge.net, prod.configsvc1.live.com.akadns.net, self.events.data.microsoft.com, onedscolprdeus19.eastus.cloudapp.azure.com, prod.roaming1.live.com.akadns.net, s-0005-office.config.skype.com, osiprod-uks-buff-azsc-000.uksouth.cloudapp.azure.com, fe3cr.delivery.mp.microsoft.com, uks-azsc-000.roaming.officeapps.live.com, s-0005.s-msedge.net, config.officeapps.live.com, azureedge-t-prod.trafficmanager.net, ecs.office.trafficmanager.net, europe.configsvc1.live.com.akadns.net, onedscolprdcus01.central
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtCreateKey calls found.
Report size getting too big, too many NtQueryAttributesFile calls found.
Report size getting too big, too many NtQueryValueKey calls found.
Report size getting too big, too many NtReadVirtualMemory calls found.

Simulations

Behavior and APIs

Time	Type	Description
02:36:26	API Interceptor	963x Sleep call for process: splwow64.exe modified

LLM Input / Output

Input	Output
URL: Office document Model: Joe Sandbox AI	{ "contains_trigger_text": true, "trigger_text": "-", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": true, "contains_fake_security_alerts": false }

URL: Office document Model: Joe Sandbox AI	{ "brands": [ "Fashion Tex Industrial Ltd" ] }
	{ "brands": [ "Fashion Tex Industrial Ltd" ] }
URL: Screenshot id: 2 Model: Joe Sandbox AI	{ "contains_trigger_text": false, "trigger_text": "unknown", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": false, "contains_fake_security_alerts": false }

URL: Screenshot id: 1 Model: Joe Sandbox AI	{ "contains_trigger_text": false, "trigger_text": "unknown", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": false, "contains_fake_security_alerts": false }

URL: Screenshot id: 3 Model: Joe Sandbox AI	{ "contains_trigger_text": false, "trigger_text": "unknown", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": false, "contains_fake_security_alerts": false }

URL: Screenshot id: 4 Model: Joe Sandbox AI	{ "contains_trigger_text": false, "trigger_text": "unknown", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": false, "contains_fake_security_alerts": false }

URL: Screenshot id: 5 Model: Joe Sandbox AI	{ "contains_trigger_text": false, "trigger_text": "unknown", "prominent_button_name": "unknown", "text_input_field_labels": "unknown", "pdf_icon_visible": false, "has_visible_captcha": false, "has_urgent_text": false, "has_visible_qrcode": false, "contains_chinese_text": false, "contains_fake_security_alerts": false }

URL: Screenshot id: 2 Model: Joe Sandbox AI	{ "brands": "unknown" }
	{ "brands": "unknown" }
URL: Screenshot id: 1 Model: Joe Sandbox AI	{ "brands": "unknown" }
	{ "brands": "unknown" }
URL: Screenshot id: 3 Model: Joe Sandbox AI	{ "brands": "unknown" }
	{ "brands": "unknown" }
URL: Screenshot id: 4 Model: Joe Sandbox AI	{ "brands": "unknown" }
	{ "brands": "unknown" }
URL: Screenshot id: 5 Model: Joe Sandbox AI	{ "brands": "unknown" }
	{ "brands": "unknown" }

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
s-part-0035.t-0009.t-msedge.net	installer.bat	Get hash	malicious	Vidar	Browse	13.107.246.63
	din.exe	Get hash	malicious	Vidar	Browse	13.107.246.63
	lem.exe	Get hash	malicious	Vidar	Browse	13.107.246.63
	atw3.dll	Get hash	malicious	Gozi, Ursnif	Browse	13.107.246.63
	WRD1792.docx.doc	Get hash	malicious	Dynamer	Browse	13.107.246.63
	0zBsv1tnt4.exe	Get hash	malicious	LummaC	Browse	13.107.246.63
	pVbAZEFIpI.exe	Get hash	malicious	LummaC	Browse	13.107.246.63
	GxX48twWHA.exe	Get hash	malicious	LummaC	Browse	13.107.246.63
	ERTL09tA59.exe	Get hash	malicious	LummaC	Browse	13.107.246.63
	90m2xwxCOf.exe	Get hash	malicious	Unknown	Browse	13.107.246.63

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

C:\Program Files (x86)\Microsoft Office\root\vfs\Common AppData\Microsoft\OFFICE\Heartbeat\HeartbeatCache.xml

Download File

Process:	C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
File Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	118
Entropy (8bit):	3.5700810731231707
Encrypted:	false
SSDEEP:	3:QaklTlAlXMLLmHlIlFLlmIK/5lTn84vlJlhlXlDHlA6l3l6Als:QFulcLk04/5p8GVz6QRq
MD5:	573220372DA4ED487441611079B623CD
SHA1:	8F9D967AC6EF34640F1F0845214FBC6994C0CB80
SHA-256:	BE84B842025E4241BFE0C9F7B8F86A322E4396D893EF87EA1E29C74F47B6A22D
SHA-512:	F19FA3583668C3AF92A9CEF7010BD6ECEC7285F9C8665F2E9528DBA606F105D9AF9B1DB0CF6E7F77EF2E395943DC0D5CB37149E773319078688979E4024F9DD7
Malicious:	false
Reputation:	high, very likely benign file
Preview:	..<.?.x.m.l. .v.e.r.s.i.o.n.=.".1...0.". .e.n.c.o.d.i.n.g.=.".U.T.F.-.1.6.".?.>.....<.H.e.a.r.t.b.e.a.t.C.a.c.h.e./.>.

C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\4CB3A0F2.jpg

Download File

Process:	C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
File Type:	JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, baseline, precision 8, 139x76, components 3
Category:	dropped
Size (bytes):	8213
Entropy (8bit):	7.846014496130794
Encrypted:	false
SSDEEP:	192:XM6gSJbO9TUYG+Fb7CK7EXLbe8RTZRk+OHkT19blQEJoRABky/8E:XMJIyiYG6b7CKgXLbe8kkvaY3t
MD5:	0AADEBFCF977109C6FD91C324285BEE8
SHA1:	4C80DD68330905F123361915E3B6F5D822664CB4
SHA-256:	6227127DF97E76623C99875BE5D5188BA3068DADF050B87C4CBD383B508B0A9C
SHA-512:	9C0E5B0FC8AF6BDD9ED18A58393355592F52CF5BB480640162D2C9B80844A3FC1CDA43F57328171E7F068B11944AA47C87FCC6D33B6FDD34670DA49EEBAA548A
Malicious:	false
Reputation:	low
Preview:	......JFIF.............C....................................................................C.......................................................................L...."............................................................}........!1A..Qa."q.2....#B...R..$3br........%&'()456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz..............................................................................................................................w.......!1..AQ.aq."2...B.....#3R..br...$4.%.....&'()56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz....................................................................................?...(...(...)23.O.-g.r..dtHa..pW.c.A%....U..._9.R.#)...)7.I]..&RQNRiE].M.........x?..K_.~4...........?....#.:7........wM.uO..W.s...-..kvZ..G....n ..K.aK.3.....9.....j=.._.K...j.......tK...V.5}_I..oncc.km?R.....m&.?'.......*.0..n.u)...nU).R.j.)u.>.>G&.......Nu..b..j.B...Jt......I...vvg.Nv3..t.9.}...pk............+..G..uo..?.\|.y.k/.v..x{.Wv.!m.,.Q.Y...g.\.;.

C:\Users\user\Desktop\~$TAX INVOICE - NBO2506000632.xlam.xls

Download File

Process:	C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	165
Entropy (8bit):	1.3520167401771568
Encrypted:	false
SSDEEP:	3:qs/FFyGff:qsyWf
MD5:	5C22367453CA7CD5BD7CA96C4FD55742
SHA1:	FC7428D064740B4E331D57098AF028AA26FBC1AE
SHA-256:	F5D3D989BFAC7CF7187B3665F8CB75AF84FD749DBE245E454E2F9F1AC562E543
SHA-512:	BE2C202040245F25CB24C7F7B44A69F0000A95984236C3AE671443C56A7E1AE05BD7ACED71979ADF1159490770A767D25F581E76540C9C653441558BAECC0C89
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	.user ..t.i.n.a. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C:\Users\user\Desktop\~$TAX INVOICE - NBO2506000632.xlam.xlsx

Download File

Process:	C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
File Type:	data
Category:	dropped
Size (bytes):	165
Entropy (8bit):	1.3520167401771568
Encrypted:	false
SSDEEP:	3:qs/FFyGff:qsyWf
MD5:	5C22367453CA7CD5BD7CA96C4FD55742
SHA1:	FC7428D064740B4E331D57098AF028AA26FBC1AE
SHA-256:	F5D3D989BFAC7CF7187B3665F8CB75AF84FD749DBE245E454E2F9F1AC562E543
SHA-512:	BE2C202040245F25CB24C7F7B44A69F0000A95984236C3AE671443C56A7E1AE05BD7ACED71979ADF1159490770A767D25F581E76540C9C653441558BAECC0C89
Malicious:	true
Reputation:	moderate, very likely benign file
Preview:	.user ..t.i.n.a. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Static File Info

General

File type:	Microsoft Excel 2007+
Entropy (8bit):	7.998140424471837
TrID:	Excel Microsoft Office Open XML Format document (35004/1) 81.40% ZIP compressed archive (8000/1) 18.60%
File name:	TAX INVOICE - NBO2506000632.xlam.xlsx
File size:	621'005 bytes
MD5:	a866e44919d15b19cb0bf0686c422fb9
SHA1:	0525eef57577d546c234f603b4da4486259b3fa7
SHA256:	a2e94cb25566b2f893c2c5be8f52ef5188f685d85d55e2f87ac4317d081a280d
SHA512:	76ddcd8e20717b652176ce6dda289ab56c8200d5cef690d643d143a4bd3cddbfbaa83c723e25ed92f8454deab63c5057444424b2316f9e53eaba220e14a58682
SSDEEP:	12288:6tnWhfJyC0fzzTdXvJ7Xp8OkgCSEVAJGFIeNk63kIvtNpZ6DsWSgRrmGUT:yCJyrzdXvJ7XKSDEOGF1kIvtXZ6PqGE
TLSH:	8AD42391C856BC6AC28BD27EBB25DD4EB8353B54E14C4BDC09A2915C02E7FAB37C01D9
File Content Preview:	PK...........Y................[Content_Types].xmlUT...x.mgx.mgx.mg.UMo.0.....0t-b.=.....6;...mgZbl%.......e7.P4q.../...'...nkt..........@+.T..............,Vl....~.2{.y...m.X....y.-....h).t.@...p.b.........&.i.2...=..^t*.[..WR+...>/KU...J@.0.X.Nd..K%P:.b.R

File Icon


Icon Hash:	35e58a8c0c8a85b9

Static OLE Info

General

Document Type:	OpenXML
Number of OLE Files:	1

OLE File "TAX INVOICE - NBO2506000632.xlam.xlsx"

Indicators

Has Summary Info:
Application Name:
Encrypted Document:	False
Contains Word Document Stream:	False
Contains Workbook/Book Stream:	False
Contains PowerPoint Document Stream:	False
Contains Visio Document Stream:	False
Contains ObjectPool Stream:	False
Flash Objects Count:	0
Contains VBA Macros:	False

Summary

Author:	SHINY
Last Saved By:	X10LUXURY
Create Time:	2010-06-04T08:55:28Z
Last Saved Time:	2023-07-30T22:56:25Z
Creating Application:	Microsoft Excel
Security:	0

Document Summary

Thumbnail Scaling Desired:	false
Company:	Grizli777
Contains Dirty Links:	false
Shared Document:	false
Changed Hyperlinks:	false
Application Version:	15.0300

Streams

Stream Path: \x1OlE10natiVe, File Type: data, Stream Size: 858114

General
Stream Path:	\x1OlE10natiVe
CLSID:
File Type:	data
Stream Size:	858114
Entropy:	5.916107375363978
Base64 Encoded:	False
Data ASCII:	H _ . . . . . < . F S ^ U . 2 = . x - x . V . . k p . } ( + D . # h Q P V w F ! . 9 I j . . . U . . . I K . $ . v . 0 } . 3 p = 7 # " . y A h o . . . . ? q * F ^ Z n _ . * = i ' . + 8 p . s . . H M N _ ! \\ . \| p 5 . . . . . P ' . c . e ( \| C / m N . d i , . . Z H W 5 . J . ` s % 8 . 8 l . b k . . & X T u . 6 . 2 d J * . . f w F / [ j A . . y P - ) f W . M q . W ; 6 x _ 8 . 3 3 . U . c / n r f . j I . % 5 + ` . . x Z . < # 5 . . . ' . v 7 Q m $ L ! . ? t . R A d \\ I # , . . k Z I & ' : . 8 q Z ? P . s r
Data Raw:	48 eb 5f 04 03 02 cb ca c0 d7 01 08 89 3c bd d7 0b 46 53 81 c5 5e b1 ff ac 8b 55 07 8b 32 b8 3d 10 fc 78 2d 8d a8 b5 78 8b 10 56 ff d2 05 1b 83 6b 70 05 b5 7d 94 8f ff e0 28 2b c2 44 00 cd 23 f5 68 ec 51 50 97 c1 56 cc 77 82 d0 f5 a0 46 21 0f b4 a4 99 39 b5 49 6a cf bf 1a ec ac a5 ca 55 cb 9f c5 85 a2 cd 7f b2 d0 49 91 ca 4b ab 98 05 83 24 c1 8d 1f 76 02 81 ef 30 7d e6 91 bf da 33

Stream Path: TXmi6mxgz3V8UBX6e, File Type: empty, Stream Size: 0

General
Stream Path:	TXmi6mxgz3V8UBX6e
CLSID:
File Type:	empty
Stream Size:	0
Entropy:	0.0
Base64 Encoded:	False
Data ASCII:
Data Raw:

Network Behavior

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 27, 2024 08:36:28.224550009 CET	1.1.1.1	192.168.2.9	0xd51f	No error (0)	shed.dual-low.s-part-0035.t-0009.t-msedge.net	s-part-0035.t-0009.t-msedge.net		CNAME (Canonical name)	IN (0x0001)	false
Dec 27, 2024 08:36:28.224550009 CET	1.1.1.1	192.168.2.9	0xd51f	No error (0)	s-part-0035.t-0009.t-msedge.net		13.107.246.63	A (IP address)	IN (0x0001)	false

Statistics

Click to jump to process

Memory Usage

• EXCEL.EXE
• splwow64.exe

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High Level Behavior Distribution

• File
• Registry

Click to dive into process behavior distribution

Behavior

• EXCEL.EXE
• splwow64.exe

Click to jump to process

System Behavior

Analysis Process: EXCEL.EXEPID: 7532, Parent PID: 752

Function Logs

General

Target ID:	0
Start time:	02:35:18
Start date:	27/12/2024
Path:	C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
Wow64 process (32bit):	true
Commandline:	"C:\Program Files (x86)\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
Imagebase:	0x4c0000
File size:	53'161'064 bytes
MD5 hash:	4A871771235598812032C822E6F68F19
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	false

Show Windows behavior

File Activities

File Opened

File Created

File Deleted

File Written

File Read

File Attributes Queried

Other File Operations

Volume Information Queried

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Section Activities

Sections loaded by Windows

Sections loaded by Program

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Registry Activities

Key Created

Key Deleted

Key Value Created

Key Value Modified

Key Value Deleted

Key Value Queried

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COM Activities

WMI Operations

COM Calls

COM Object Queried

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Mutex Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

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Process Activities

Process Information Set

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Thread Activities

Thread Created

Thread Information Set

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Memory Activities

Memory Usage Statistics

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System Activities

Language or Locale ID Queried

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Timing Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

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Windows UI Activities

Window Created

Window UI Found

Window UI Enumerated

Message Posted to Windows UI

Window UIs Event Hook Set

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Object Security Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

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LPC Port Activities

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Chronological Activities

Analysis Process: splwow64.exePID: 5304, Parent PID: 7532

Function Logs

General

Target ID:	8
Start time:	02:36:26
Start date:	27/12/2024
Path:	C:\Windows\splwow64.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\splwow64.exe 12288
Imagebase:	0x7ff64ec00000
File size:	163'840 bytes
MD5 hash:	77DE7761B037061C7C112FD3C5B91E73
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	false

Show Windows behavior

File Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Section Activities

Sections loaded by Windows

Show Windows behavior

Registry Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Mutex Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Process Activities

Process Information Set

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Thread Activities

Thread Created

Thread Delayed

Thread Information Set

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Memory Activities

Memory Usage Statistics

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System Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Timing Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Windows UI Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

LPC Port Activities

There is hidden Windows Behavior. Click on Show Windows Behavior to show it.

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

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:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject malicious code into process via Extra Window Memory (EWM) in order to evade process-based defenses as well as possibly elevate privileges. EWM injection is a method of executing arbitrary code in the address space of a separate live process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	Process: OS API Execution
Platforms:	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:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process 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:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of open application windows. Window listings could convey information about how the system is used.For example, information about application windows could be used identify potential data to collect as well as identifying security tooling ( Security Software Discovery ) to evade.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, 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:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, 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:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report TAX INVOICE - NBO2506000632.xlam.xlsx

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Initial Sample

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Software Vulnerabilities

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

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

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

LLM Input / Output

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Program Files (x86)\Microsoft Office\root\vfs\Common AppData\Microsoft\OFFICE\Heartbeat\HeartbeatCache.xml

C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\4CB3A0F2.jpg

C:\Users\user\Desktop\~$TAX INVOICE - NBO2506000632.xlam.xls

C:\Users\user\Desktop\~$TAX INVOICE - NBO2506000632.xlam.xlsx

Static File Info

General

File Icon

Static OLE Info

General

OLE File "TAX INVOICE - NBO2506000632.xlam.xlsx"

Indicators

Summary

Document Summary

Streams

Stream Path: \x1OlE10natiVe, File Type: data, Stream Size: 858114

General

Stream Path: TXmi6mxgz3V8UBX6e, File Type: empty, Stream Size: 0

General

Network Behavior

DNS Answers

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: EXCEL.EXEPID: 7532, Parent PID: 752

General

Windows Analysis Report
TAX INVOICE - NBO2506000632.xlam.xlsx