MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4. 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

LummaStealer

Vendor detections: 10

Intelligence 10 IOCs YARA 22 File information Comments

SHA256 hash:	c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4
SHA3-384 hash:	17ec33400bedd899dbe7363d29b326e7207fc3048c65704c5209de91f7c29003fd0a2ca03e78aa0af6b74dd2e2795a04
SHA1 hash:	d11077f623786e7e7913c6a942c0e44bb77ece39
MD5 hash:	7a8499e4221283aeb5a55750372169f5
humanhash:	eleven-yankee-finch-five
File name:	file
Download:	download sample
Signature	LummaStealer Create hunting rule
File size:	6'846'888 bytes
First seen:	2026-10-08 18:04:11 UTC
Last seen:	2026-10-08 18:27:48 UTC
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	1aae8bf580c846f39c71c05898e57e88 (278 x LummaStealer, 181 x SalatStealer, 24 x ACRStealer)
ssdeep	49152:fOpmBVoUjalBDTfg1FagUtONjzaaMIvhOI6o3XUXyPPmn:2p6VKakgUwNR33X72n
TLSH	T162665B10B6C900F8CE4B423104FA5A7F23760D5A1737DA4ADF59BAA5BF23BA51E21D4C
TrID	48.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.1% (.EXE) Win64 Executable (generic) (6522/11/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	Bitsight
Tags:	1TEST.file a dropped-by-gcleaner exe LummaStealer signed

Code Signing Certificate

Organisation:	Titan Wave Holdings
Issuer:	Titan Wave Holdings
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-10-01T16:49:30Z
Valid to:	2027-10-08T16:49:30Z
Serial number:	bb595cb585fd873a1ccfdc2dfa4c82d8
Thumbprint Algorithm:	SHA256
Thumbprint:	199c35a95173e907e3f84a7e2beec019c82c0f2a56c0a146fbce1e92806d18d6
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Bitsight

url: http://91.240.118.10/service

Intelligence

File Origin

# of uploads :

# of downloads :

232

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-08 18:11:20 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/57a31f87-1af7-4db8-83ba-9c19045a470b

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Amadey

Link:

https://www.capesandbox.com/analysis/91140/

Result

Verdict:

Clean

Maliciousness:

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm evasive golang invalid-signature self-signed-cert signed

Link:

https://www.filescan.io/uploads/6ac7db1eab9887628ab537c8/reports/5972cdda-4d08-4b17-be61-d27438897235/overview

Verdict:

Suspicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-08T16:10:00Z UTC

Last seen:

2026-10-08T19:20:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/ebd895f1-22af-40ac-a3ef-31c2c3d86521

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4

Verdict:

Go Loader (Factory-v3)

YARA:

5 match(es)

Tags:

Executable Go Loader (Factory-v3) PE (Portable Executable) PE File Layout Stealer Loader T1027 T1055 Win 32 Exe x86

Link:

https://app.malva.re/file/7a8499e4221283aeb5a55750372169f5

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=yikvpkny35srnexyuysb4senz65i7lznzzcgyfhvqvf2d6qe272a._file

Verdict:

malicious

Label(s):

Amadey

Link:

https://reports.threatray.com/d395016c-2538-4d43-b91b-02f90da8e7be

Result

Malware family:

n/a

Score:

3/10

Tags:

discovery

Link:

https://tria.ge/reports/261008-wnn69ats8k/

Behaviour

System Location Discovery: System Language Discovery

Unpacked files

SH256 hash:

c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4

MD5 hash:

7a8499e4221283aeb5a55750372169f5

SHA1 hash:

d11077f623786e7e7913c6a942c0e44bb77ece39

Link:

https://www.unpac.me/results/662faf40-e8e1-4b45-9802-bbf851d2b517/

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/c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4

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:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

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:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	Detect_Go_GOMAXPROCS Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata

Rule name:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

Rule name:	Golangmalware Create hunting rule
Author:	Dhanunjaya
Description:	Malware in Golang

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	Golang_Find_CSC846 Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	Golang_Find_CSC846_Simple Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	HiveRansomware Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule To Detect Hive V4 Ransomware

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Suspicious_Golang_Binary Create hunting rule
Author:	Tim Machac
Description:	Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	WIN_Malware_Fantom_ForgeAuto_98e6f354_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Fantom (pe, etat extrait)

Rule name:	WIN_Malware_Unknown_ForgeAuto_30f84f37 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

File information

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

Web download

LummaStealer

exe c21557a9b8df651692f8a6241e488dcfba8faf2dce446c14f5854ba1fa04d7f4

(this sample)

Dropped by

Gcleaner

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/91140/

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