Malware analysis Cotizaci�n adjunta________doc.uu Malicious activity

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File name:	Cotizaci�n adjunta________doc.uu
Full analysis:	https://app.any.run/tasks/81ce7707-bc27-4915-8e3c-e1a02f650d73
Verdict:	Malicious activity
Threats:	DarkCloud is an infostealer that focuses on collecting and exfiltrating browser data from the infected device. The malware is also capable of keylogging and crypto address swapping. DarkCloud is typically delivered to victims’ computers via phishing emails. Malware Trends Tracker >>>
Analysis date:	April 29, 2025, 15:35:50
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec ims-api generic darkcloud upx
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	A9B970F716965B9DA032B4F49C1DFA4E
SHA1:	F867C5C87B17797EE254E92498A957282A024482
SHA256:	E787476F5C5B02C564B406009E12424332E7B8065D0FA3920A92B66A4FFDEE7E
SSDEEP:	49152:q50MJqMC/L+GXqkOovsE3m9Kc0IJ0bZaEzSNBjQqj1OLwI9/boWCHuDTlxIOZZKU:q5nqtL+GXqF6/3m9KdtbZhYjBsFpCKTJ

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: off

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (122.0.6261.70)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (123.0)
Mozilla Maintenance Service (123.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Skype version 8.104 (8.104)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- DARKCLOUD has been detected (YARA)
  - MSBuild.exe (PID: 6872)
SUSPICIOUS
- Process drops legitimate windows executable
  - WinRAR.exe (PID: 6564)
- Starts a Microsoft application from unusual location
  - Cotización adjunta________doc.exe (PID: 1812)
- Reads security settings of Internet Explorer
  - WinRAR.exe (PID: 6564)
  - MSBuild.exe (PID: 6872)
- Possible usage of Discord/Telegram API has been detected (YARA)
  - MSBuild.exe (PID: 6872)
INFO
- The sample compiled with english language support
  - WinRAR.exe (PID: 6564)
- Checks supported languages
  - Cotización adjunta________doc.exe (PID: 1812)
  - MSBuild.exe (PID: 6872)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 6564)
- Checks proxy server information
  - MSBuild.exe (PID: 6872)
- Reads the computer name
  - MSBuild.exe (PID: 6872)
- UPX packer has been detected
  - MSBuild.exe (PID: 6872)
- Creates files or folders in the user directory
  - MSBuild.exe (PID: 6872)
- Reads the machine GUID from the registry
  - MSBuild.exe (PID: 6872)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.rar	\|	RAR compressed archive (v5.0) (61.5)
.rar	\|	RAR compressed archive (gen) (38.4)

EXIF

ZIP

FileVersion:	RAR v5
CompressedSize:	889305
UncompressedSize:	1400832
OperatingSystem:	Win32
ArchivedFileName:	Cotización adjunta________doc.exe

No data.

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All screenshots are available in the full report

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Total processes

134

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1812

"C:\Users\admin\AppData\Local\Temp\Rar$EXa6564.27345\Cotización adjunta________doc.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa6564.27345\Cotización adjunta________doc.exe

—

WinRAR.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Windows Media Player Setup Utility

Exit code:

Version:

12.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa6564.27345\cotización adjunta________doc.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\msvcrt.dll

2384

"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent

C:\Windows\System32\slui.exe

—

SppExtComObj.Exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows Activation Client

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll

6564

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\Cotizaci�n adjunta________doc.uu.rar"

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

6708

C:\WINDOWS\system32\SppExtComObj.exe -Embedding

C:\Windows\System32\SppExtComObj.Exe

—

svchost.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

KMS Connection Broker

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\sppextcomobj.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\oleaut32.dll

6872

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Cotización adjunta________doc.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

MSBuild.exe

Version:

4.8.9037.0 built by: NET481REL1

Modules

Images
c:\windows\microsoft.net\framework\v4.0.30319\msbuild.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvbvm60.dll
c:\windows\syswow64\user32.dll

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Total events

2 673

Read events

2 662

Write events

Delete events

Modification events


(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\Cotizaci�n adjunta________doc.uu.rar
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(6564) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(6872) MSBuild.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:	write	Name:	CachePrefix
Value:
(PID) Process:	(6872) MSBuild.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:	write	Name:	CachePrefix
Value: Cookie:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6872	MSBuild.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Templates\DESKTOP-JGLLJLD-admin\LoginData		binary
		MD5:A45465CDCDC6CB30C8906F3DA4EC114C	SHA256:4412319EF944EBCCA9581CBACB1D4E1DC614C348D1DFC5D2FAAAAD863D300209
6872	MSBuild.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Templates\DESKTOP-JGLLJLD-admin\cookies.db-shm		binary
		MD5:B7C14EC6110FA820CA6B65F5AEC85911	SHA256:FD4C9FDA9CD3F9AE7C962B0DDF37232294D55580E1AA165AA06129B8549389EB
6564	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa6564.27345\Cotización adjunta________doc.exe		executable
		MD5:6887C4D1799B847138380181246892F6	SHA256:978BDB0431417015DFE8D95572D87225E038CC2B82ADC4AA3CFEE89A90767AE0
6872	MSBuild.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Templates\DESKTOP-JGLLJLD-admin\WebData		binary
		MD5:F6C33AC5E1032A0873BE7BFC65169287	SHA256:D97895CEDED32E33D57BDCACCDBE144E58AA87AF4D2F8855D630286CE30A8D83
6872	MSBuild.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Templates\DESKTOP-JGLLJLD-admin\keyDBPath.db		binary
		MD5:0FF3BCDD0BE077B9EB8194B5C09F453C	SHA256:225D669E47EB14D8C969799C92AAEF27B66CD984872EA09284E48DB46521E651
6872	MSBuild.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Templates\DESKTOP-JGLLJLD-admin\cookies.db		binary
		MD5:19BA68C3ECBCA72C2B90AFADDE745DC6	SHA256:8B3758EE2D2C0A07EE7003F902F0667ABE5D9667941F8617EDA3CDF94C78E7B8

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

No data

DNS requests

No data

Threats

No threats detected

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No debug info

General Info

Cotizaci�n adjunta________doc.uu

A9B970F716965B9DA032B4F49C1DFA4E

F867C5C87B17797EE254E92498A957282A024482

E787476F5C5B02C564B406009E12424332E7B8065D0FA3920A92B66A4FFDEE7E

49152:q50MJqMC/L+GXqkOovsE3m9Kc0IJ0bZaEzSNBjQqj1OLwI9/boWCHuDTlxIOZZKU:q5nqtL+GXqF6/3m9KdtbZhYjBsFpCKTJ

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

DARKCLOUD has been detected (YARA)

SUSPICIOUS

Process drops legitimate windows executable

Starts a Microsoft application from unusual location

Reads security settings of Internet Explorer

Possible usage of Discord/Telegram API has been detected (YARA)

INFO

The sample compiled with english language support

Checks supported languages

Executable content was dropped or overwritten

Checks proxy server information

Reads the computer name

UPX packer has been detected

Creates files or folders in the user directory

Reads the machine GUID from the registry

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings