MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6
SHA3-384 hash: 191e69be71593aafce6c120a955e2c49e6417a4a87fd2d92d504e475e0a9b6a366cda01e37182327c694d6db21dd5224
SHA1 hash: 58c0372ba70b1bfbe314d0c29f1337f9922da4ec
MD5 hash: 876df5b20db022879660a8ad96c92090
humanhash: uniform-oregon-zulu-emma
File name:mscorsvc.dll
Download: download sample
Signature MaskGramStealer
Create hunting rule
File size:235'008 bytes
First seen:2025-11-23 15:44:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 889d7d9bd78af47c7881d69d79690e91 (2 x MaskGramStealer)
ssdeep 3072:/3YwNcSKjnZ1LiIblgl/ptMdejhW+5Oot7cfs/lYsW3XL0NOvFpJ7Fb8AaEHqBkZ:xcrtiElglRCIhWBts5mFpZFb8nQbFL
Threatray 1'690 similar samples on MalwareBazaar
TLSH T15234BFEF46A3BBCCF4F8AC7051A02D54E580E9BD9D2ED2F0C576A070233A8CD1D4A956
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 burger
Tags:exe MaskGramStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mscorsvc.dll
Verdict:
Malicious activity
Analysis date:
2025-11-23 15:44:11 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/6d06f19d-93ce-4e0c-b2e1-3ed4484f3f9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/41155/
Gathering data
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69232bcaa59c70c97d6a01ba
Tags:
emotet virus remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Behavior that indicates a threat
Connection attempt to an infection source
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug hacktool masm masquerade packed
Link:
https://www.filescan.io/uploads/69232be5eecb08e4aa45e2f5/reports/a40ff143-944a-4cd8-b726-20b9e5f6c5f7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6
Result
Gathering data
Verdict:
Malicious
File Type:
dll x64
Detections:
HEUR:Trojan.Win32.Agentb.gen HEUR:Trojan.Win32.Agent.gen
Link:
https://opentip.kaspersky.com/38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6/results?tab=lookup
Result
Threat name:
DonutLoader, MaskGram Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1819550
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1819550 Sample: mscorsvc.dll.exe Startdate: 23/11/2025 Architecture: WINDOWS Score: 100 36 easternwhiskerholdings.sbs 2->36 38 www.chess.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 Antivirus / Scanner detection for submitted sample 2->70 72 5 other signatures 2->72 9 loaddll64.exe 1 2->9         started        12 explorer.exe 10 125 2->12         started        signatures3 process4 dnsIp5 74 Injects code into the Windows Explorer (explorer.exe) 9->74 76 Writes to foreign memory regions 9->76 78 Allocates memory in foreign processes 9->78 84 2 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 150.171.27.12, 443, 49714 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 easternwhiskerholdings.sbs 172.67.193.7, 443, 49683, 49684 CLOUDFLARENETUS United States 15->46 48 204.79.197.203, 443 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 15->48 50 2 other IPs or domains 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 4 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 42 192.168.2.7, 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 74.125.21.132, 443, 49695, 49696 GOOGLEUS United States 31->52 54 clients2.googleusercontent.com 31->54 56 3 other IPs or domains 31->56
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/876df5b20db022879660a8ad96c92090
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6/
Verdict:
Malicious
Threat:
Family.DONUTLOADER
Link:
https://tip.neiki.dev/file/38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6
Threat name:
Win64.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-11-23 15:44:13 UTC
File Type:
PE+ (Dll)
AV detection:
17 of 36 (47.22%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hcrqjtsrs3nkwiff3feinruqmmdcr3bc4llydk2rnxh4umwskg3a._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
maskgramstealer
Create hunting rule
Similar samples:
2d25bb861cbb3317609dea32488f08d39451042c955ea781e244a7c885adf31a
MaskGramStealer
2e3fa76a30030172e0d76c139f4fdb970a166b8d59f43c4e500c9a3521214ede
MaskGramStealer
540c3a52fee60aaea28abc5b11a5327d8ef435d425ddbec13e0adc1afd027b2f
MaskGramStealer
8cdc955d3b984ef389b30c4038a8961a379eff7a03372d0cd9954d3631f9d9bb
MaskGramStealer
e8b08cc9b26fa0ff42d77d0b0e8fd69f5894330585744c027734dc735ede1b65
MaskGramStealer
error
MaskGramStealer
f2fa42ddcbe57d2cf7d7dec3c0461b0cbdf6d6fa2ac937cce6d4c7980befbe0d
MaskGramStealer
+ 1'680 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader loader persistence ransomware spyware
Link:
https://tria.ge/reports/251123-s6zh6atjgl/
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
Accesses cryptocurrency files/wallets, possible credential harvesting
Enumerates connected drives
Boot or Logon Autostart Execution: Active Setup
Detects DonutLoader
DonutLoader
Donutloader family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/007bd1db-b186-4f47-bdb8-0a3c42af6707
Unpacked files
SH256 hash:
38a304ce5196daab20a5d94886c690630628ec22e2d781ab516dcfca32d251b6
MD5 hash:
876df5b20db022879660a8ad96c92090
SHA1 hash:
58c0372ba70b1bfbe314d0c29f1337f9922da4ec
Link:
https://www.unpac.me/results/7436ccdc-4696-4000-b9b5-d3c182e86664/
Malware family:
DonutLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/38a304ce5196/report/overview.html
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
Create hunting rule
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/41155/

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