MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577. 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: 12

Intelligence 12 IOCs YARA 27 File information Comments

SHA256 hash:	ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577
SHA3-384 hash:	f9ccc86439c488c1627c213eb42b2b90ac0b73dd53f4a1fa9768c5611b451a890f4957989f6094afb6308042b31506e0
SHA1 hash:	ccbd7c63f2ad4e6ff8c501d2d6e7516adb51beb6
MD5 hash:	79949a8baa1e0ab0e5f3c42c3abb1b4a
humanhash:	sad-pasta-april-sodium
File name:	cStartexH.zip
Download:	download sample
Signature	RemusStealer Create hunting rule
File size:	3'816'200 bytes
First seen:	2026-07-04 09:58:05 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	24576:tpOIyKKFnlLIv9q6AopNHIdzmsJZVOKqIBc3YSFkqfk:tHpiN2qRkoasJZVOKXy3Fu
TLSH	T1B406DFCE557299F497FE6241A6350B2787B143D05C828981A2FC4B343E26F9768C9E3F
Magika	zip
Reporter	burger
Tags:	file-pumped RemusStealer zip

Intelligence

File Origin

# of uploads :

# of downloads :

126

Origin country :

File Archive Information

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

File name:	cStartexH.exe
Pumped file	This file is pumped. MalwareBazaar has de-pumped it.
File size:	774'381'778 bytes
SHA256 hash:	3ca317e80fcc9ff8e73f049e21c1137cf27a0bd8c03060a66571a957d783024c
MD5 hash:	3d83efe18153ebf23074ffd0c22860b3
De-pumped file size:	2'225'664 bytes (Vs. original size of 774'381'778 bytes)
De-pumped SHA256 hash:	8ee45671a9bfc0c4f45c228cdb8a0bbb70898303739a2b787a1ec47ecffb9805
De-pumped MD5 hash:	4e42e7ab43f9d868b899961aff67c804
MIME type:	application/x-dosexec
Signature	RemusStealer

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/90296252-0f08-4a59-a68c-7aaffce1578b/

Detection(s):

SecuriteInfo.com.FileRepMalware.53378168.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a48d95e762b0b26f3cfb0ff

Tags:

n/a

Result

Verdict:

Malicious

File Type:

ZIP File - Malicious

Link:

https://app.docguard.net/ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577/results/dashboard

Behaviour

SuspiciousEmbeddedObjects detected

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm bloated crypto golang large-file overlay

Link:

https://www.filescan.io/uploads/6a48d94d9d4736ea7dae1ce4/reports/90c25516-742e-4d9d-b718-007d1952f4e3/overview

Verdict:

Suspicious

Labled as:

HEUR/Pumpar.Generic

Link:

https://www.hybrid-analysis.com/sample/ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577

Verdict:

Malicious

File Type:

zip

First seen:

2026-07-04T09:15:00Z UTC

Last seen:

2026-07-04T09:24:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577/results?tab=lookup

Score:

100%

Verdict:

Malware

File Type:

Result

Malware family:

remus_stealer

Score:

10/10

Tags:

family:remus_stealer discovery spyware stealer

Link:

https://tria.ge/reports/260704-mjjarsas6n/

Behaviour

Suspicious behavior: EnumeratesProcesses

Browser Information Discovery

Accesses cryptocurrency files/wallets, possible credential harvesting

Reads user/profile data of web browsers

Detects Remus stealer

Family: Remus

Malware Config

C2 Extraction:

http://lawofi.xyz:7538
http://midpfv.xyz:9549
http://myrtler.biz:9549

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

Threat name:

Malicious File

Score:

0.98

Link:

https://yomi.yoroi.company/submissions/ab5d1a42babf7a6ff6ea6bf2f661fe419ed3c6b59ba59097a0dcd31f2798b577

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:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

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:	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:	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