MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63. 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

RemcosRAT

Vendor detections: 16

Intelligence 16 IOCs YARA 28 File information Comments

SHA256 hash:	6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63
SHA3-384 hash:	f27619ddc4475bb2790a915b9db76e3af61f427eb96b5e03b2c2d5b868279be6ef2828436951ed20f380524be0137a83
SHA1 hash:	3c300b2e985e1303fa0828077e4acf2fb687cafc
MD5 hash:	5f2913b187217336c7fef2b99560c88c
humanhash:	edward-six-alpha-pluto
File name:	6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	641'024 bytes
First seen:	2026-04-15 10:00:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'861 x AgentTesla, 19'793 x Formbook, 12'305 x SnakeKeylogger)
ssdeep	12288:tq48r+N1PJZR9OUQKKsxgRhmdZu6I5sUoMEj6GpZu7iCeLQZBTdV4kRbSo:Y486fP7+zK/46IlujxyiC3l4R
Threatray	466 similar samples on MalwareBazaar
TLSH	T199D42340397CA425EC04E2B752A210F309342BE1E9976672187FE42CDC897DF95FD6B6
TrID	70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.2% (.EXE) Win64 Executable (generic) (6522/11/2) 4.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	JAMESWT_WT
Tags:	172-245-95-9 exe RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

149

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

remcos

ID:

File name:

_6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63.exe

Verdict:

Malicious activity

Analysis date:

2026-04-15 10:02:52 UTC

Tags:

rat remcos donutloader loader

Link:

https://app.any.run/tasks/318f2f48-7f84-4f42-bac7-7317817dded4

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/61715/

Detection(s):

SecuriteInfo.com.Trojan.MSIL.Basic.3.Gen.99634156.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69df620745787c53e539e6a3

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

base64 crypt krypt packed unsafe xworm

Link:

https://www.filescan.io/uploads/69df61e6799d5bf325ff6bf3/reports/8b979261-c3b0-4d66-9e7a-3c3158e30811/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-11-17T16:16:00Z UTC

Last seen:

2026-04-15T08:37:00Z UTC

Hits:

~10

Detections:

Trojan.Win32.Shellcode.sb HEUR:Trojan.Win32.Generic HEUR:Trojan.MSIL.Cryptos.gen Backdoor.Win32.Remcos.sb

Link:

https://opentip.kaspersky.com/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/43ca59b9-f121-47e3-b2a7-2f2eb6cbf4c4

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63

Gathering data

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63/

Verdict:

Malicious

Threat:

Family.REMCOS

Link:

https://tip.neiki.dev/file/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63

Threat name:

ByteCode-MSIL.Trojan.XWorm

Status:

Malicious

First seen:

2025-11-17 03:24:31 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 36 (66.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=nlwbxeny6od7v65zq3k6wdfis3pownct6ksylbhfhi2olgd3h5rq._file

Result

Malware family:

remcos

Score:

10/10

Tags:

family:donutloader family:remcos botnet:remote loader rat

Link:

https://tria.ge/reports/260415-l19zdabv6q/

Behaviour

Suspicious use of AdjustPrivilegeToken

Detects DonutLoader

Family: DonutLoader

Family: Remcos

Malware Config

C2 Extraction:

172.245.95.9:9090

Unpacked files

SH256 hash:

6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63

MD5 hash:

5f2913b187217336c7fef2b99560c88c

SHA1 hash:

3c300b2e985e1303fa0828077e4acf2fb687cafc

Link:

https://www.unpac.me/results/3f0a951c-d585-4e1b-a645-c8f3fb50b37c/

Malware family:

DonutLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/6aec1b91b8f3/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/6aec1b91b8f387fafbb986d5eb0ca896deeb3453f2a58584e53a34e5987b3f63

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:	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:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM Create hunting rule
Author:	ditekSHen
Description:	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	pe_imphash Create hunting rule

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	REMCOS_RAT_variants Create hunting rule

Rule name:	Remcos_unpacked_PulseIntel Create hunting rule
Author:	PulseIntel
Description:	Remcos Payload

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

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:	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.

Rule name:	Windows_Trojan_Remcos_921ef449 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_Remcos_b296e965 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set

Rule name:	win_remcos_rat_unpacked Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	win_remcos_w0 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	yarahub_win_remcos_rat_unpacked_aug_2023 Create hunting rule
Author:	Matthew @ Embee_Research

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/61715/

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