MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8224b9c14404d8e8bf74221033466ac4ea33551b92914352be9c0ba92ffbfd43. 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



MaskGramStealer


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments

SHA256 hash: 8224b9c14404d8e8bf74221033466ac4ea33551b92914352be9c0ba92ffbfd43
SHA3-384 hash: a12f0e4a525ad4dcecc18b93d4dc22535ad5656e06db87e0160a24fbbb37893acae8a34749a8ba378ad8161159a63d72
SHA1 hash: f97703ff0c8680e029fd34c4944e533c59f49a52
MD5 hash: db2d94edc5a6aeb988162109787a6bf3
humanhash: pennsylvania-carpet-maryland-vegan
File name:mscorsvc.dll
Download: download sample
Signature MaskGramStealer
File size:171'008 bytes
First seen:2025-11-30 12:10:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 889d7d9bd78af47c7881d69d79690e91 (3 x MaskGramStealer, 1 x DonutLoader)
ssdeep 3072:d8jGy2CLNyl09nRoD1k8913tlY7xHz8jDulR0D2NCIPSzh5EjKA:mLQl0/oR3tlYtISCIPSzhKj
Threatray 1'741 similar samples on MalwareBazaar
TLSH T153F3E0BE49F9E34FF2ECBCF1E0159F91A810B15C5E656AB2993DD0B037329881A5D2D0
TrID 38.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.6% (.ICL) Windows Icons Library (generic) (2059/9)
15.4% (.EXE) OS/2 Executable (generic) (2029/13)
15.2% (.EXE) Generic Win/DOS Executable (2002/3)
15.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter aachum
Tags:dll donutloader MaskGramStealer SvitStealer


Avatar
iamaachum
https://www.youtube.com/watch?v=AdM3xNsenv0 => https://www.mediafire.com/folder/adgvgf8ommcuq/loader

SvitStealer C2:
https://www.chess.com/member/bvzxw
https://steamcommunity.com/profiles/76561198775809889/
easternwhiskerholdings.sbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
102
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
mscorsvc.dll
Verdict:
Malicious activity
Analysis date:
2025-11-30 12:06:56 UTC
Tags:
stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
emotet virus crypt remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Launching a process
Searching for the window
Creating a window
Changing a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug hacktool masquerade microsoft_visual_cc packed
Verdict:
Malicious
File Type:
dll x64
First seen:
2025-11-30T02:34:00Z UTC
Last seen:
2025-11-30T09:24:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Agent.gen Trojan.Win64.DonutInjector.sb Trojan.Win32.Inject.sb Trojan.Win32.Agent.sb MEM:Trojan.Win64.Shellcode.gen MEM:Trojan.Win64.Shellcode.a HEUR:Trojan.Win64.Donut.a Trojan.Win64.Donut.sb Trojan.Win64.Agentb.sb Trojan.Win32.Shellcode.sb PDM:Trojan.Win32.Generic MEM:Trojan.Win64.Cometer.gen HEUR:Trojan.Multi.Donut.b HEUR:Trojan.Win32.Agentb.gen
Result
Threat name:
DonutLoader, MaskGram Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates a thread in another existing process (thread injection)
Found API chain indicative of debugger detection
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected DonutLoader
Yara detected MaskGram Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1823088 Sample: mscorsvc.dll.exe Startdate: 30/11/2025 Architecture: WINDOWS Score: 100 36 www.chess.com 2->36 38 steamcommunity.com 2->38 40 8 other IPs or domains 2->40 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 4 other signatures 2->72 9 loaddll64.exe 1 2->9         started        12 explorer.exe 36 130 2->12         started        signatures3 process4 dnsIp5 74 Found API chain indicative of debugger detection 9->74 76 Injects code into the Windows Explorer (explorer.exe) 9->76 78 Writes to foreign memory regions 9->78 84 3 other signatures 9->84 15 explorer.exe 501 9 9->15 injected 19 cmd.exe 1 9->19         started        21 conhost.exe 9->21         started        44 ax-0003.ax-msedge.net 150.171.28.12, 443, 49748 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->44 80 System process connects to network (likely due to code injection or exploit) 12->80 82 Query firmware table information (likely to detect VMs) 12->82 signatures6 process7 dnsIp8 46 www.chess.com 104.18.138.67, 443, 49726 CLOUDFLARENETUS United States 15->46 48 easternwhiskerholdings.sbs 104.21.84.128, 443, 49728, 49729 CLOUDFLARENETUS United States 15->48 50 steamcommunity.com 23.4.33.50, 443, 49727 AKAMAI-ASUS United States 15->50 58 System process connects to network (likely due to code injection or exploit) 15->58 60 Tries to harvest and steal browser information (history, passwords, etc) 15->60 62 Writes to foreign memory regions 15->62 64 5 other signatures 15->64 23 chrome.exe 2 15->23         started        26 msedge.exe 3 15->26         started        28 rundll32.exe 19->28         started        signatures9 process10 dnsIp11 42 192.168.2.4, 137, 138, 443 unknown unknown 23->42 31 chrome.exe 23->31         started        34 msedge.exe 26->34         started        86 Injects code into the Windows Explorer (explorer.exe) 28->86 88 Writes to foreign memory regions 28->88 90 Allocates memory in foreign processes 28->90 92 Creates a thread in another existing process (thread injection) 28->92 signatures12 process13 dnsIp14 52 googlehosted.l.googleusercontent.com 142.251.15.132, 443, 49738, 49739 GOOGLEUS United States 31->52 54 gce-beacons.gcp.gvt2.com 31->54 56 4 other IPs or domains 31->56
Gathering data
Threat name:
Win64.Trojan.Donut
Status:
Malicious
First seen:
2025-11-30 07:28:31 UTC
File Type:
PE+ (Dll)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Result
Malware family:
donutloader
Score:
  10/10
Tags:
family:donutloader loader persistence ransomware spyware
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Enumerates connected drives
Boot or Logon Autostart Execution: Active Setup
Detects DonutLoader
DonutLoader
Donutloader family
Unpacked files
SH256 hash:
8224b9c14404d8e8bf74221033466ac4ea33551b92914352be9c0ba92ffbfd43
MD5 hash:
db2d94edc5a6aeb988162109787a6bf3
SHA1 hash:
f97703ff0c8680e029fd34c4944e533c59f49a52
Malware family:
DonutLoader
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:Check_Debugger
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

MaskGramStealer

Executable exe 8224b9c14404d8e8bf74221033466ac4ea33551b92914352be9c0ba92ffbfd43

(this sample)

  
Delivery method
Distributed via web download

Comments