MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de18bb269601d0a009d23cd252967880b9b95e1f02e7fcdc7e7e4832221871f5. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: de18bb269601d0a009d23cd252967880b9b95e1f02e7fcdc7e7e4832221871f5
SHA3-384 hash: 8aca00ff889d71b660a2713aaaa592f2941c289e2dbf096d06dfd59c292d4117f3ab3dd98a5e0f1f23025213722cf833
SHA1 hash: eb3337ddf342d5d1b3b2150eaddc85ee5d613d76
MD5 hash: 61efbb1826dc6ae4503bfd37baa51d34
humanhash: romeo-arkansas-mars-shade
File name:update.exe
Download: download sample
Signature MaskGramStealer
File size:435'712 bytes
First seen:2026-03-08 20:05:45 UTC
Last seen:2026-03-08 20:52:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash df22469fbcbcfbfc3b5d4e0f752d717a (1 x MaskGramStealer)
ssdeep 6144:OEixfXNfou3vXFCkp2/5G5UlttKRRFmwTjO03y/hK2I/ol:OE6NfouAkkxGUAR9fO04KN/ol
TLSH T16594C0DBA9F064D0CC4922F65C212AEBBB3715738714415E136AEB660F27BF84D2DB12
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter burger
Tags:exe MaskGramStealer

Intelligence


File Origin
# of uploads :
2
# of downloads :
167
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
update.exe
Verdict:
Malicious activity
Analysis date:
2026-03-08 20:05:02 UTC
Tags:
maskgram stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
vmdetect emotet
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Coins.sb Trojan-PSW.MSIL.Stealer.sb Trojan.Win64.Agent.sb Trojan-Spy.Stealer.TCP.C&C Trojan-PSW.Vidar.HTTP.C&C Trojan.Win32.Udochka.sb PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Vidar.iax Trojan-PSW.Win32.BroPass.sb Trojan-PSW.Stealer.HTTP.C&C
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Creates a thread in another existing process (thread injection)
Found direct / indirect Syscall (likely to bypass EDR)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1880264 Sample: update.exe Startdate: 08/03/2026 Architecture: WINDOWS Score: 100 42 kirk-service.live 2->42 44 steamcommunity.com 2->44 46 fg.microsoft.map.fastly.net 2->46 62 Suricata IDS alerts for network traffic 2->62 64 Antivirus / Scanner detection for submitted sample 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 Joe Sandbox ML detected suspicious sample 2->68 8 update.exe 2->8         started        12 msedge.exe 30 500 2->12         started        15 elevation_service.exe 2->15         started        17 elevation_service.exe 2->17         started        signatures3 process4 dnsIp5 48 kirk-service.live 104.21.28.182, 49715, 49730, 49731 CLOUDFLARENETUS United States 8->48 50 steamcommunity.com 23.54.184.97, 443, 49714 AKAMAI-ASUS United States 8->50 72 Found many strings related to Crypto-Wallets (likely being stolen) 8->72 74 Tries to harvest and steal browser information (history, passwords, etc) 8->74 76 Writes to foreign memory regions 8->76 78 6 other signatures 8->78 19 chrome.exe 1 8->19         started        22 msedge.exe 16 8->22         started        52 192.168.2.4, 138, 443, 49710 unknown unknown 12->52 54 239.255.255.250 unknown Reserved 12->54 40 C:\Users\user\AppData\Local\...\Login Data, SQLite 12->40 dropped 24 msedge.exe 12->24         started        28 msedge.exe 12->28         started        30 msedge.exe 12->30         started        32 2 other processes 12->32 file6 signatures7 process8 dnsIp9 70 Found many strings related to Crypto-Wallets (likely being stolen) 19->70 34 chrome.exe 19->34         started        36 msedge.exe 22->36         started        56 13.107.213.38, 443, 49746, 49747 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 24->56 58 ln-0007.ln-msedge.net 150.171.22.17, 443, 49723, 49724 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 24->58 60 7 other IPs or domains 24->60 38 C:\Users\user\AppData\Local\...\Cookies, SQLite 24->38 dropped file10 signatures11 process12
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Midie
Status:
Malicious
First seen:
2026-03-08 20:05:47 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
System Time Discovery
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
de18bb269601d0a009d23cd252967880b9b95e1f02e7fcdc7e7e4832221871f5
MD5 hash:
61efbb1826dc6ae4503bfd37baa51d34
SHA1 hash:
eb3337ddf342d5d1b3b2150eaddc85ee5d613d76
Malware family:
MaskGramStealer
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

MaskGramStealer

Executable exe de18bb269601d0a009d23cd252967880b9b95e1f02e7fcdc7e7e4832221871f5

(this sample)

Comments