MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43. 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: 11

Intelligence 11 IOCs YARA 21 File information Comments

SHA256 hash:	5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43
SHA3-384 hash:	e6d9193dc23c62451111587dd1c74d7facea588f7ead7324473fe3e7992e645f7a5ffe9e8d3c9a7444af152969a35a9d
SHA1 hash:	f9acdf4696a09a383cf55910d408f667bf2714c1
MD5 hash:	2e28729f43fc419ca8c721cc71b8ff0c
humanhash:	four-sodium-texas-magazine
File name:	Boostraptler_51.5.86108.exe
Download:	download sample
Signature	RemusStealer Create hunting rule
File size:	2'832'312 bytes
First seen:	2026-09-25 19:23:52 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	4f2f006e2ecf7172ad368f8289dc96c1 (184 x SalatStealer, 74 x Vidar, 46 x RemusStealer)
ssdeep	24576:+fGyOD0Jh3R4UaVaidQr0N2rbb+tknCmy+8tDLYzWQhkM2:PyODMDsaHr4Obb+ynsB8zn2
TLSH	T1A7D53913BF9111ADC896E23AD9A75291BA31BC985B3533C32B1576B83E363D4DB70B04
TrID	33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	KnownSpotter
Tags:	exe RemusStealer signed

Code Signing Certificate

Organisation:	Cobalt Nexus Analytics
Issuer:	Cobalt Nexus Analytics
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-09-16T13:51:04Z
Valid to:	2027-09-23T13:51:04Z
Serial number:	5bbb9466563c01c4059bd98095f6e231
Thumbprint Algorithm:	SHA256
Thumbprint:	f47589fc49d279b2864fe10901138dfed474fa122deed73cba10a6b38a1f6030
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

197

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

Boostraptler_51.5.86108.exe

Verdict:

Malicious activity

Analysis date:

2026-09-25 19:20:34 UTC

Tags:

golang

Link:

https://app.any.run/tasks/6990668b-4cbe-4fdf-b0a5-3ee1c259d136

Note:

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

Detection:

Remus

Link:

https://www.capesandbox.com/analysis/89035/

Detection(s):

SecuriteInfo.com.Win64.Evo-gen.56755327.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending an HTTP POST request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 crypto golang invalid-signature self-signed-cert signed

Link:

https://www.filescan.io/uploads/6ab6ca63b231515463a01428/reports/cbd65db4-5714-438a-b693-f35bc8382131/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-09-23T12:20:00Z UTC

Last seen:

2026-09-26T22:07:00Z UTC

Hits:

~10

Detections:

Trojan-Downloader.Win32.Remus.sbb Trojan-Downloader.Win32.Remus.ays

Link:

https://opentip.kaspersky.com/5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43/results?tab=lookup

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/e5357a7b-7c43-40cf-afa0-7d62833815b2

Score:

84%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/2e28729f43fc419ca8c721cc71b8ff0c

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43/

Threat name:

Win64.Trojan.Egairtigado

Status:

Malicious

First seen:

2026-09-23 17:42:42 UTC

File Type:

PE+ (Exe)

AV detection:

15 of 24 (62.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=l446pvz4kgk6elzkrax2cvv3eprwo4t55zpupicpkxrc4ynffzbq._file

Verdict:

malicious

Label(s):

Remus

Link:

https://reports.threatray.com/4da55c18-a9dc-4d55-9a0b-56420d40f64b

Result

Malware family:

n/a

Score:

3/10

Tags:

discovery

Link:

https://tria.ge/reports/260925-x4g9bavdpc/

Behaviour

Reads the TCP/IP host and domain name from the registry

Unpacked files

SH256 hash:

5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43

MD5 hash:

2e28729f43fc419ca8c721cc71b8ff0c

SHA1 hash:

f9acdf4696a09a383cf55910d408f667bf2714c1

Link:

https://www.unpac.me/results/6dab21d7-834c-4080-af52-33a9def3bd67/

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/5f39e7d73c5195e22f2a882fa156bb23e367727dee5f47a04f55e22e61a52e43

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_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:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

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:	ThreadControl__Context 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

https://www.capesandbox.com/analysis/89035/

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