MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c87f0ccaceabc4b920d064eba1fda7c87c7cb434798c02f86665b225eaf95a5. 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: 8

Intelligence 8 IOCs YARA 26 File information Comments

SHA256 hash:	3c87f0ccaceabc4b920d064eba1fda7c87c7cb434798c02f86665b225eaf95a5
SHA3-384 hash:	776bab4e83d09cfaba4c0b5d2a500d17820156ce17ff60a8092ff92a6c2c0cf5ebbff56b50c0eba1cca5bac2526b439f
SHA1 hash:	21f5af837cf76313c93a5d64f5e425c0754c7e49
MD5 hash:	f314c88111069d8dd5734c6984ad34a7
humanhash:	early-steak-wisconsin-hamper
File name:	Bootsexec64.zip
Download:	download sample
Signature	RemusStealer Create hunting rule
File size:	2'141'805 bytes
First seen:	2026-07-27 10:20:51 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	24576:poINajXCNf2t/Xmg8aQ6NdxhKz5Qew4MytHssTRa0MCVcff:pxUGf2SV6NdxhI5dR5s85MCMf
TLSH	T159A58AC78AC21D86DDD508386C7B0FB05B61C8AAF912CA538F32A7699FD7390DC5A14D
Magika	zip
Reporter	burger
Tags:	file-pumped RemusStealer zip

Intelligence

File Origin

# of uploads :

# of downloads :

113

Origin country :

File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:	Bootsexec64.exe
Pumped file	This file is pumped. MalwareBazaar has de-pumped it.
File size:	921'161'560 bytes
SHA256 hash:	4f178a55cb9bae3dc57e442d25f2653f37d37d56792587db2d850220ace565fd
MD5 hash:	4be041a22cd298c5aff6f928219648d6
De-pumped file size:	2'606'592 bytes (Vs. original size of 921'161'560 bytes)
De-pumped SHA256 hash:	95d726a38b576746afdd06fa579d682e6028976db6b14a9c90f4ae60dc4bdc86
De-pumped MD5 hash:	9d2434089e612f0f39432c61a23af837
MIME type:	application/x-dosexec
Signature	RemusStealer

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/43867dfa-64ee-4ca8-bad9-efea0a5ef81f/

Verdict:

Suspicious

Labled as:

HEUR/Pumpar.Generic

Link:

https://www.hybrid-analysis.com/sample/3c87f0ccaceabc4b920d064eba1fda7c87c7cb434798c02f86665b225eaf95a5

Score:

91%

Verdict:

Malware

File Type:

Result

Malware family:

remus_stealer

Score:

10/10

Tags:

family:remus_stealer discovery spyware stealer

Link:

https://tria.ge/reports/260727-mw2ymszhma/

Behaviour

Suspicious behavior: EnumeratesProcesses

Browser Information Discovery

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Detects Remus stealer

Family: Remus

Malware Config

C2 Extraction:

http://texchub.biz:6520
http://zelpx.garden:9895
http://fimmora.surf:6504

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:	Any_SU_Domain Create hunting rule
Author:	you
Description:	Detect any reference to .su domains or subdomains

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_Golang_Binary Create hunting rule
Author:	Andrew Morrow
Description:	Detects binaries compiled with Go

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:	goLangMatch3 Create hunting rule

Rule name:	goLangMatch4 Create hunting rule

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:	PK_PUMP_AND_DUMP Create hunting rule
Author:	Will Metcalf @node5
Description:	Walks Zip Central Directory filename entries looking for abused extension then checks for a file that's at least 25M and then check to see how much uncompressed size is vs compressed size

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:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

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:	weird_zip_high_compression_ratio Create hunting rule
Author:	Maxime THIEBAUT (@0xThiebaut)
Description:	Detects single-entry ZIP files with a suspiciously high compression ratio (>100:1) and decompressed size above the 500MB AV limit
Reference:	https://twitter.com/Cryptolaemus1/status/1633099154623803394