MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5
SHA3-384 hash: e18f406a458fd618652e2904b754be3d02c1ae4711f8e29cfc2db058d68bfd6cbd61d2b6a34ceb2fefbada4e6bf0db3c
SHA1 hash: b23f851b24c3cb36e3fdb5967fbb4062df93b31e
MD5 hash: edcdbbb803dc4c08627233c11e0051c6
humanhash: cola-crazy-maryland-neptune
File name:file
Download: download sample
Signature MaskGramStealer
Create hunting rule
File size:7'071'312 bytes
First seen:2025-11-20 04:50:03 UTC
Last seen:2025-11-20 04:52:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ea281082cd6342019a4640d5d7089aef (3 x MaskGramStealer)
ssdeep 196608:BkgjIqj3LuvbiG6gQD9L13rI/lBD8MCLlFIYVy8:BSeL6mG69LdRMGlVVy8
TLSH T17E66239116D9A7B4C0C7CB30A18352CE74E1ADA55AFDAA0D3DC57C035B70FAE084A7A7
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 MaskGramStealer


Avatar
Bitsight
url: http://178.16.55.189/files/8243004082/gFMyRrK.exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
94
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2025-11-20 04:50:57 UTC
Tags:
stealer svitstealer
Link:
https://app.any.run/tasks/5351d407-c6a4-4698-b10e-a4b5beb9da10

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/38750/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=691e9e1e40055a3d310df107
Tags:
ransomware crypt virus
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug invalid-signature mingw obfuscated packed packed signed vmprotect
Link:
https://www.filescan.io/uploads/691e9e18857e1412e8759827/reports/6d6d31ea-8f6c-4d87-babc-e4add9e28c6f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-11-20T01:59:00Z UTC
Last seen:
2025-11-22T01:55:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Vidar.ekd Trojan-PSW.Vidar.HTTP.C&C
Link:
https://opentip.kaspersky.com/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/720db94c-192c-4dbc-a348-b430063f03af
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5/
Verdict:
Malicious
Threat:
AuxiliaryAnalysis.Malware.Generic
Link:
https://tip.neiki.dev/file/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-11-20 04:50:37 UTC
File Type:
PE+ (Exe)
Extracted files:
19
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnrzm33sh7ehyozvjfatblkz54xxdirvyapqnfloj3u44z5g5o2q._file
Verdict:
malicious
Label(s):
maskgramstealer
Create hunting rule
Similar samples:
error
MaskGramStealer
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/251120-fgj1yszmdv/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a5e0a6f1-3dc6-428f-911d-bc6fdbd49bd3
Unpacked files
SH256 hash:
4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5
MD5 hash:
edcdbbb803dc4c08627233c11e0051c6
SHA1 hash:
b23f851b24c3cb36e3fdb5967fbb4062df93b31e
Link:
https://www.unpac.me/results/bc9379ec-bfe7-491c-9d31-6086105e58c0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b63966f723f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

MaskGramStealer

Executable exe 4b63966f723fc87c3b35494130ad59ef2f71a235c01f06956e4ee9ce67a6ebb5

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/38750/
  
URLhaus
https://urlhaus.abuse.ch/url/3712254/

Comments