File name:	2025-04-29_0303d8146904a1488d15f5ea249934e6_black-basta_cobalt-strike_mespinoza_ryuk_satacom
Full analysis:	https://app.any.run/tasks/df14a241-7a7d-490a-b7e7-8d8aef4a3fa1
Verdict:	Malicious activity
Threats:	Stealc is a stealer malware that targets victims’ sensitive data, which it exfiltrates from browsers, messaging apps, and other software. The malware is equipped with advanced features, including fingerprinting, control panel, evasion mechanisms, string obfuscation, etc. Stealc establishes persistence and communicates with its C2 server through HTTP POST requests. Stealc ist eine Stealer-Malware, die es auf die sensiblen Daten der Opfer abgesehen hat, die sie aus Browsern, Messaging-Apps und anderer Software exfiltriert. Die Malware ist mit fortschrittlichen Funktionen ausgestattet, darunter Fingerprinting, Bedienfeld, Umgehungsmechanismen, String-Verschleierung usw. Stealc stellt eine Persistenz her und kommuniziert mit seinem C2-Server über HTTP-POST-Anfragen. Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. Vidar is a dangerous malware that steals information and cryptocurrency from infected users. It derives its name from the ancient Scandinavian god of Vengeance. This stealer has been terrorizing the internet since 2018. Malware Trends Tracker >>>
Analysis date:	April 29, 2025, 02:57:33
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	telegram vidar stealer stealc
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32+ executable (GUI) x86-64, for MS Windows, 12 sections
MD5:	0303D8146904A1488D15F5EA249934E6
SHA1:	3123EC626F97EC55D19CDC697D68FF34901B03C1
SHA256:	6DE943D7DAC05C1415B6A760D9398AE5071B63E43293A634DC6C3014E0025697
SSDEEP:	49152:SFvdiyNcrDo+2GnuR/NlSDFecbSAGYSc4DyD619gF54ENADb:uFiyNcrDYG0l6Feo4OD8uNADb

.exe	\|	Generic Win/DOS Executable (50)
.exe	\|	DOS Executable Generic (49.9)

MachineType:	AMD AMD64
TimeStamp:	2025:04:28 16:26:11+00:00
ImageFileCharacteristics:	Executable, Large address aware
PEType:	PE32+
LinkerVersion:	14
CodeSize:	892416
InitializedDataSize:	92160
UninitializedDataSize:	-
EntryPoint:	0xb9d58
OSVersion:	6
ImageVersion:	-
SubsystemVersion:	6
Subsystem:	Windows GUI
FileVersionNumber:	12.0.19041.1
ProductVersionNumber:	12.0.19041.1
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Windows NT 32-bit
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
CompanyName:	Microsoft Corporation
FileDescription:	Microsoft Windows Media Player Setup Utility
FileVersion:	12.0.19041.1 (WinBuild.160101.0800)
InternalName:	unregmp2.exe
LegalCopyright:	© Microsoft Corporation. All rights reserved.
OriginalFileName:	unregmp2.exe
ProductName:	Microsoft® Windows® Operating System
ProductVersion:	12.0.19041.1


(PID) Process:	(7396) MSBuild.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:	write	Name:	CachePrefix
Value:
(PID) Process:	(7396) MSBuild.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:	write	Name:	CachePrefix
Value: Cookie:
(PID) Process:	(7396) MSBuild.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:	write	Name:	CachePrefix
Value: Visited:
(PID) Process:	(7640) chrome.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon
Operation:	write	Name:	failed_count
Value: 0
(PID) Process:	(7640) chrome.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon
Operation:	write	Name:	state
Value: 2
(PID) Process:	(7640) chrome.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon
Operation:	write	Name:	state
Value: 1
(PID) Process:	(7640) chrome.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\StabilityMetrics
Operation:	write	Name:	user_experience_metrics.stability.exited_cleanly
Value: 0
(PID) Process:	(7640) chrome.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Google\Update\ClientStateMedium\{8A69D345-D564-463C-AFF1-A69D9E530F96}
Operation:	write	Name:	usagestats
Value: 0
(PID) Process:	(2140) msedge.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\StabilityMetrics
Operation:	write	Name:	user_experience_metrics.stability.exited_cleanly
Value: 0
(PID) Process:	(2140) msedge.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon
Operation:	write	Name:	failed_count
Value: 0

PID	Process	Filename		Type
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\PersistentOriginTrials\LOG.old~RF112f98.TMP		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\PersistentOriginTrials\LOG.old		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\discounts_db\LOG.old~RF112fa8.TMP		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\parcel_tracking_db\LOG.old~RF112fa8.TMP		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\chrome_cart_db\LOG.old~RF112fa8.TMP		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\coupon_db\LOG.old~RF112fa8.TMP		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\discounts_db\LOG.old		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\chrome_cart_db\LOG.old		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\coupon_db\LOG.old		—
		MD5:—	SHA256:—
7640	chrome.exe	C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\parcel_tracking_db\LOG.old		—
		MD5:—	SHA256:—

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
—	—	GET	200	5.75.209.111:443	https://62.3a.4t.com/	unknown	—	—	—
—	—	GET	304	142.250.185.67:443	https://www.gstatic.com/images/branding/googlelogo/svg/googlelogo_clr_74x24px.svg	unknown	—	—	—
—	—	OPTIONS	200	142.250.186.138:443	https://ogads-pa.clients6.google.com/$rpc/google.internal.onegoogle.asyncdata.v1.AsyncDataService/GetAsyncData	unknown	—	—	—
—	—	GET	200	216.58.206.46:443	https://apis.google.com/_/scs/abc-static/_/js/k=gapi.gapi.en.F939Du45chc.O/m=gapi_iframes,googleapis_client/rt=j/sv=1/d=1/ed=1/rs=AHpOoo8uI5v7Xlp-b-Z4Th_hAAVtm2lZOw/cb=gapi.loaded_0	unknown	—	—	—
—	—	GET	200	216.58.206.68:443	https://www.google.com/async/newtab_ogb?hl=en-US&async=fixed:0	unknown	binary	126 Kb	whitelisted
—	—	POST	200	5.75.209.111:443	https://62.3a.4t.com/	unknown	text	2.13 Kb	malicious
—	—	POST	200	5.75.209.111:443	https://62.3a.4t.com/	unknown	text	58 b	unknown
—	—	GET	200	216.58.206.68:443	https://www.google.com/async/ddljson?async=ntp:2	unknown	text	19 b	whitelisted
—	—	POST	200	5.75.209.111:443	https://62.3a.4t.com/	unknown	text	2 b	malicious
—	—	POST	200	5.75.209.111:443	https://62.3a.4t.com/	unknown	text	5.69 Kb	malicious

PID	Process	IP	Domain	ASN	CN	Reputation
—	—	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
—	—	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
7396	MSBuild.exe	149.154.167.99:443	t.me	Telegram Messenger Inc	GB	whitelisted
7396	MSBuild.exe	5.75.209.111:443	62.3a.4t.com	Hetzner Online GmbH	DE	unknown
4	System	192.168.100.255:137	—	—	—	whitelisted
7640	chrome.exe	239.255.255.250:1900	—	—	—	whitelisted
7808	chrome.exe	142.250.185.131:443	clientservices.googleapis.com	GOOGLE	US	whitelisted
7808	chrome.exe	108.177.15.84:443	accounts.google.com	GOOGLE	US	whitelisted
7808	chrome.exe	216.58.206.68:443	www.google.com	GOOGLE	US	whitelisted

Domain	IP	Reputation
settings-win.data.microsoft.com	51.124.78.146 51.104.136.2	whitelisted
google.com	142.250.186.78	whitelisted
t.me	149.154.167.99	whitelisted
62.3a.4t.com	5.75.209.111	malicious
clientservices.googleapis.com	142.250.185.131	whitelisted
accounts.google.com	108.177.15.84	whitelisted
www.google.com	216.58.206.68	whitelisted
www.gstatic.com	142.250.185.67	whitelisted
ogads-pa.clients6.google.com	142.250.186.138	whitelisted
apis.google.com	172.217.16.206	whitelisted

PID	Process	Class	Message
7396	MSBuild.exe	Misc activity	ET INFO Observed Telegram Domain (t .me in TLS SNI)
—	—	A Network Trojan was detected	ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M1
—	—	Malware Command and Control Activity Detected	ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2
—	—	Malware Command and Control Activity Detected	ET MALWARE Win32/Stealc/Vidar Stealer Active C2 Responding with plugins Config M1
—	—	Malware Command and Control Activity Detected	ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2
—	—	A Network Trojan was detected	STEALER [ANY.RUN] Base64 Encoded SQLite Dump
—	—	Malware Command and Control Activity Detected	ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2
—	—	A Network Trojan was detected	STEALER [ANY.RUN] Base64 Encoded SQLite Dump
—	—	Malware Command and Control Activity Detected	ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2
—	—	A Network Trojan was detected	STEALER [ANY.RUN] Base64 Encoded SQLite Dump

General Info

2025-04-29_0303d8146904a1488d15f5ea249934e6_black-basta_cobalt-strike_mespinoza_ryuk_satacom

0303D8146904A1488D15F5EA249934E6

3123EC626F97EC55D19CDC697D68FF34901B03C1

6DE943D7DAC05C1415B6A760D9398AE5071B63E43293A634DC6C3014E0025697

49152:SFvdiyNcrDo+2GnuR/NlSDFecbSAGYSc4DyD619gF54ENADb:uFiyNcrDYG0l6Feo4OD8uNADb

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

VIDAR mutex has been found

VIDAR has been detected (YARA)

Actions looks like stealing of personal data

SUSPICIOUS

Process drops legitimate windows executable

Starts a Microsoft application from unusual location

Process communicates with Telegram (possibly using it as an attacker's C2 server)

Reads security settings of Internet Explorer

Searches for installed software

There is functionality for taking screenshot (YARA)

Multiple wallet extension IDs have been found

INFO

Creates files in the program directory

Reads the computer name

Checks supported languages

Checks proxy server information

The sample compiled with english language support

Reads the software policy settings

Attempting to use instant messaging service

Reads the machine GUID from the registry

Creates files or folders in the user directory

Reads CPU info

Reads Environment values

Reads product name

Application launched itself

Malware configuration

Vidar

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

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