MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b. 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

RemusStealer

Vendor detections: 9

Intelligence 9 IOCs YARA 61 File information Comments

SHA256 hash:	efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b
SHA3-384 hash:	6f121f8be968837f1d9120155ff90d4485bae8692707c7cd790ebeaf9fe92293d36d628554e9ae1642dd3ffae97c8b21
SHA1 hash:	5ed6be9ce56aa63c61968b1a9329710667edc09c
MD5 hash:	ed130aec50042dd0a2efe386dbe9313f
humanhash:	twelve-carpet-jersey-hot
File name:	water-night.zip
Download:	download sample
Signature	RemusStealer Create hunting rule
File size:	1'391'337 bytes
First seen:	2026-07-23 13:29:58 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	24576:QOP4M7pdnefR+R4IrDvh7DCsbqVD8u/5b9ZDnxEAQV80YolI5:QE4MOZ+RVtm4qVDH/VnxNolI5
TLSH	T18F5533D9D4F2795A90749ABA2F00753ECB802B671211DDCA79972B3FC13398C6D2C52E
Magika	zip
Reporter	JAMESWT_WT
Tags:	hairkeratin-net RemusStealer zip

Intelligence

File Origin

# of uploads :

# of downloads :

167

Origin country :

File Archive Information

This file archive contains 2 file(s), sorted by their relevance:

File name:	MpDlpService.exe
File size:	699'768 bytes
SHA256 hash:	715b4174065916a6412f60b3c10664b323dc737fd717ab09627083be34626fe0
MD5 hash:	6669e10c960f6c2297bcd3d5a27412aa
MIME type:	application/x-dosexec
Signature	RemusStealer

File name:	mpclient.dll
File size:	2'556'560 bytes
SHA256 hash:	872d8079ab450bfd1417b9128b619f7e9b43291dc7391044dd838f5b7e8dde52
MD5 hash:	6a9ac6b3fff7b695dbd4df6ff7f6c516
MIME type:	application/x-dosexec
Signature	RemusStealer

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/4dcd1b6c-8db4-4d8f-8a8f-a08fc67de231/

Detection(s):

SecuriteInfo.com.UntrustedCertificate-21.UNOFFICIAL

Result

Verdict:

Suspicious

File Type:

PE File

Link:

https://app.docguard.net/efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b/results/dashboard

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

adaptive-context anti-debug anti-vm crypto golang mingw overlay packed signed

Link:

https://www.filescan.io/uploads/6a6217aaf257cf73b82ea5c8/reports/98179797-3d57-47f9-aa5a-622e3cbdb4ea/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b

Verdict:

Malicious

File Type:

zip

First seen:

2026-07-23T10:36:00Z UTC

Last seen:

2026-07-23T14:21:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b/results?tab=lookup

Score:

75%

Verdict:

Malware

File Type:

Result

Malware family:

remus_stealer

Score:

10/10

Tags:

family:remus_stealer stealer

Link:

https://tria.ge/reports/260723-vnszrstbpd/

Behaviour

Detects Remus stealer

Family: Remus

Malware Config

C2 Extraction:

http://hairkeratin.net:4959
http://carogra.biz:4219
http://myrtler.biz:9549

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.29

Link:

https://yomi.yoroi.company/submissions/efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b

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 Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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

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

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_duffcopy_amd64 Create hunting rule

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:	INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	pe_detect_tls_callbacks Create hunting rule

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:	RemusStealer_GoPayload Create hunting rule
Author:	burger
Description:	Detects RemusStealer Go-compiled payload

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:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	test_rule_vldslv Create hunting rule

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

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Web download

RemusStealer

zip efbf5f7c9dfdc13083ac65ad37e02133cfab9ba246b47dbb86b780043891195b

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3890806/

Delivery method

Distributed via web download

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