MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f220e60f655d3e78bf22d140c2f2d1b5f9332ac3785eab6add91eb1588cbbafb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



UmbralStealer


Vendor detections: 20


Intelligence 20 IOCs YARA 14 File information Comments

SHA256 hash: f220e60f655d3e78bf22d140c2f2d1b5f9332ac3785eab6add91eb1588cbbafb
SHA3-384 hash: 925b32969a254f80b7152dcc08ef115c272e23da8045d57468ca0a3052c671cd6b9d126826696d644a62a43a51dd8b39
SHA1 hash: b4718cda21f1645c0ef34f899c92ca31c21b124e
MD5 hash: 3823c59afe93ad5f687644b57664f81c
humanhash: finch-hamper-shade-pizza
File name:Umbral.exe
Download: download sample
Signature UmbralStealer
File size:235'008 bytes
First seen:2025-11-04 18:31:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'097 x AgentTesla, 20'115 x Formbook, 12'356 x SnakeKeylogger)
ssdeep 6144:FloZMsrIkd8g+EtXHkv/iD4p+rX+8D/0gVA+Pv+ekb8e1m4i:HoZrL+EP8p+rX+8D/0gVA+Pv+zi
Threatray 247 similar samples on MalwareBazaar
TLSH T15E346B5937B88B17E25F8FBED5B0148F87B1F103E90AF78E1C8895E82411B42E949E57
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter burger
Tags:exe UmbralStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
112
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_f220e60f655d3e78bf22d140c2f2d1b5f9332ac3785eab6add91eb1588cbbafb.exe
Verdict:
Malicious activity
Analysis date:
2025-11-04 18:38:15 UTC
Tags:
stealer evasion anti-evasion umbral generic divulgestealer discord exfiltration umbralstealer ims-api

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Creating a file in the %temp% directory
Creating a window
Creating a file
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm anti-vm base64 cmd fingerprint hacktool lolbin obfuscated reconnaissance wmic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-04T15:42:00Z UTC
Last seen:
2025-11-05T10:18:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Disco.sb PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Umbral.sb Trojan-PSW.MSIL.Stealer.sb Trojan-PSW.MSIL.DiscoStealer.sb Trojan.Win32.Dizemp.sb HEUR:Trojan.MSIL.Dizemp.gen
Malware family:
Sharp Stealer
Verdict:
Malicious
Result
Threat name:
Blank Grabber, Umbral Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies Windows Defender protection settings
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Blank Grabber
Yara detected Generic Downloader
Yara detected Umbral Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1808015 Sample: Umbral.exe Startdate: 04/11/2025 Architecture: WINDOWS Score: 100 40 ip-api.com 2->40 42 discord.com 2->42 48 Suricata IDS alerts for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 12 other signatures 2->54 8 Umbral.exe 15 9 2->8         started        signatures3 process4 dnsIp5 44 ip-api.com 208.95.112.1, 49722, 80 TUT-ASUS United States 8->44 46 discord.com 162.159.135.232, 443, 49723 CLOUDFLARENETUS United States 8->46 38 C:\Users\user\AppData\...\Umbral.exe.log, ASCII 8->38 dropped 56 Suspicious powershell command line found 8->56 58 Found many strings related to Crypto-Wallets (likely being stolen) 8->58 60 Tries to harvest and steal browser information (history, passwords, etc) 8->60 62 2 other signatures 8->62 13 powershell.exe 23 8->13         started        16 WMIC.exe 1 8->16         started        18 powershell.exe 11 8->18         started        20 6 other processes 8->20 file6 signatures7 process8 signatures9 64 Loading BitLocker PowerShell Module 13->64 22 WmiPrvSE.exe 13->22         started        24 conhost.exe 13->24         started        66 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->66 26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 20->32         started        34 conhost.exe 20->34         started        36 3 other processes 20->36 process10
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.53 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.UmbralStealer
Status:
Malicious
First seen:
2025-11-04 18:36:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:umbral defense_evasion execution spyware stealer
Behaviour
Detects videocard installed
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Disables automatic submission of suspicious files to Microsoft by Windows Defender
Reads user/profile data of web browsers
Disables one or more Microsoft Defender components
Command and Scripting Interpreter: PowerShell
Detects Umbral payload
Umbral
Umbral family
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1395298984393834568/UwF2K8ij25qTNizatXXA7cZ1kme-wdSJis3-wGNT6ukWO6kRRPSiMi9Jrwf2_3MydPB2
Verdict:
Malicious
Tags:
stealer umbral Win.Packed.Msilzilla-9952790-0
YARA:
MALWARE_Win_Umbralstealer
Unpacked files
SH256 hash:
f220e60f655d3e78bf22d140c2f2d1b5f9332ac3785eab6add91eb1588cbbafb
MD5 hash:
3823c59afe93ad5f687644b57664f81c
SHA1 hash:
b4718cda21f1645c0ef34f899c92ca31c21b124e
Detections:
UmbralStealer
Malware family:
UmbralStealer
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxComputerNames
Author:ditekSHen
Description:Detects executables containing possible sandbox analysis VM names
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxSystemUUIDs
Author:ditekSHen
Description:Detects executables containing possible sandbox system UUIDs
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxUserNames
Author:ditekSHen
Description:Detects executables containing possible sandbox analysis VM usernames
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MALWARE_Win_UmbralStealer
Author:ditekShen
Description:Detects Umbral infostealer
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:UmbrealStealerEXIFData
Author:adm1n_usa32
Description:Detects UmbralStealer by obvious comment in EXIF Data

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

UmbralStealer

Executable exe f220e60f655d3e78bf22d140c2f2d1b5f9332ac3785eab6add91eb1588cbbafb

(this sample)

  
Delivery method
Distributed via web download

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