MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e. 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

AsyncRAT

Vendor detections: 21

Intelligence 21 IOCs YARA 20 File information Comments 1

SHA256 hash:	e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e
SHA3-384 hash:	f9e364d62841190d11b55c33e0d5875b1a02e709dd9eab8081b2ebaa9f3a070d2d96b0dfa9bb8f9a66ef467140e229ac
SHA1 hash:	547db3d74958b2127988edfae45fb04942e1e4e9
MD5 hash:	ac5cfac2fcbce231d7996a3df1cc0639
humanhash:	nevada-romeo-fanta-two
File name:	RuntimeBroker.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	65'024 bytes
First seen:	2025-08-11 11:01:41 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep	1536:0Z8vHdF4usDE9Tm9kKdKrsaeeiMl8GbbXwShGMEVclN:0Z8vHdF4usDE9Tm918rsjeFmGbbXN2Y
Threatray	29 similar samples on MalwareBazaar
TLSH	T103536C002798C965E2AD4AF8ACF2450047B5D5772102DB5E7CC804DBAB9FFCA4A537EE
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	burger
Tags:	AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

free.exe

Verdict:

Malicious activity

Analysis date:

2025-08-11 09:39:08 UTC

Tags:

loader confuser asyncrat

Link:

https://app.any.run/tasks/bbaf399a-a617-46cf-82b8-b0dacff1bde9

Note:

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

Detection:

DCRat

Link:

https://www.capesandbox.com/analysis/20130/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6899cd8bfca70bd90e8e1703

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Creating a file in the %temp% directory

Creating a file

Launching a process

Creating a process from a recently created file

Connection attempt

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug anti-vm base64 configsecuritypolicy evasive fingerprint hacktool lolbin mpcmdrun msconfig njrat njrat rat reconnaissance regedit schtasks vbnet

Link:

https://www.filescan.io/uploads/6899cdd1397fd3ce6fa47b55/reports/3949a330-13c8-4f0c-a6e0-68b1e5dbb058/overview

Verdict:

Malicious

Labled as:

Backdoor.Marte.VenomRAT.Generic

Link:

https://www.hybrid-analysis.com/sample/e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9faf6929-e635-4612-8235-b313faaf78a8

Result

Threat name:

AsyncRAT, Dacic, DcRat

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1754515

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Found malware configuration

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Sigma detected: Files With System Process Name In Unsuspected Locations

Sigma detected: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

Sigma detected: Schedule system process

Sigma detected: System File Execution Location Anomaly

Sigma detected: Windows Binaries Write Suspicious Extensions

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AsyncRAT

Yara detected Dacic

Yara detected DcRat

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

Verdict:

njRat

YARA:

14 match(es)

Tags:

.Net DarkCrystal RAT DcRat Executable njRat PE (Portable Executable) RAT SOS: 0.25 Win 32 Exe x86

Malware Config

C2 Extraction:

PORT: 8080
CNC: 157.97.11.134

Link:

https://app.malva.re/file/ac5cfac2fcbce231d7996a3df1cc0639

Detection:

dcrat

Link:

https://mwdb.cert.pl/sample/e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e/

Verdict:

Malicious

Threat:

Family.ASYNCRAT

Link:

https://tip.neiki.dev/file/e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2025-08-11 09:49:22 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

33 of 38 (86.84%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=4zvaqyjgihr7xhwtc5d6bdoabqfj2uyvl7avmw5k7to5punzzypa._file

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default rat

Link:

https://tria.ge/reports/250811-m5ejps1l18/

Behaviour

Suspicious use of AdjustPrivilegeToken

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

157.97.11.134:8080

Verdict:

Malicious

Tags:

rat asyncrat Win.Packed.Razy-9807129-0

YARA:

Windows_Generic_Threat_ce98c4bc asyncrat win_asyncrat_unobfuscated

Link:

https://app.threat.zone/submission/72eb0028-9af7-489c-940a-989a5eceee25

Unpacked files

SH256 hash:

e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

MD5 hash:

ac5cfac2fcbce231d7996a3df1cc0639

SHA1 hash:

547db3d74958b2127988edfae45fb04942e1e4e9

Detections:

AsyncRAT

DCRat

Link:

https://www.unpac.me/results/3354e171-e3ca-4a52-b781-df07a0bcabd4/

Malware family:

DCRat

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/e66a08612641/report/overview.html

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

Threat name:

iSpy Keylogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

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:	AcRat Create hunting rule
Author:	Nikos 'n0t' Totosis
Description:	AcRat Payload (based on AsyncRat)

Rule name:	dcrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	dcrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	dcrat_rkp Create hunting rule
Author:	jeFF0Falltrades
Description:	Detects DCRat payloads

Rule name:	INDICATOR_SUSPICIOUS_EXE_DcRatBy Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing the string DcRatBy

Rule name:	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice Create hunting rule
Author:	ditekSHen
Description:	Detects executables attemping to enumerate video devices using WMI

Rule name:	MAL_AsnycRAT Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	MAL_AsyncRAT_Config_Decryption Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	Mal_WIN_AsyncRat_RAT_PE Create hunting rule
Author:	Phatcharadol Thangplub
Description:	Use to detect AsyncRAT implant.

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

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

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

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	pe_imphash Create hunting rule

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

Rule name:	SUSP_DOTNET_PE_List_AV Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detecs .NET Binary that lists installed AVs

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:	win32_async_rat Create hunting rule
Author:	Reedus0
Description:	Rule for detecting AsyncRAT malware

Rule name:	Windows_Generic_Threat_ce98c4bc Create hunting rule
Author:	Elastic Security

Rule name:	win_asyncrat_unobfuscated Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)

File information

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

Web download

AsyncRAT

exe e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3596156/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/20130/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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commented on 2025-08-11 11:05:55 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "e66a08612641e3fb9ed31747e08dc00c0a9d53155fc1565baafcddd7d1b9ce1e",
"yara_possible_family": "dcrat",
"key": "751e2f345aeeb09014c9f276232f79b97ae59a51868e8fae078df89e905ff419",
"salt": "4463526174427971777164616e6368756e",
"config": {
"Ports": [
"8080"
],
"Hosts": [
"157.97.11.134"
],
"Version": " 1.0.7",
"Install": "true",
"InstallFolder": "%Temp%",
"InstallFile": "RuntimeBroker.exe",
"Key": "cEpFenFSYXhZNXZxRFZRMzAxdHJ1Z1FrV2RLQXpaaTM=",
"Mutex": "runtime",
"Certificate": "MIICMDCCAZmgAwIBAgIVAI7IWFdXoYnjjoSxMJDHb6HBFJn1MA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTI0MDQxODEzMjEwOVoXDTM1MDEyNjEzMjEwOVowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALT9HoU3FTIku/OY1kDBgataFW6WNOLw5Kr4PQBcIAW+eQCRPqXe8pCJ89xeoz7llUynZuWY5kPrgcvkyL1LXpQ0yNAIYRI3h2cfWbPdcPhU2BRbA7W2u6F6j8207y3BD7LQnH/KS9mFBgiQ4SS81+UEo3CUtIAEtjhrdwOhn/dnAgMBAAGjMjAwMB0GA1UdDgQWBBQyzJHqSgEuupWcwHXOseEbn1ePfjAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBDQUAA4GBAGJqNSazZndg2f4qFC1ocXyQReXVteC/sgFLksqBN2SHvuGIeyT8ghEq0EjA+tnPL5uIR1GjTPAjC0jVlZ34Vqiv/2eLJfbUBdxpGwSHfCopfWkU2Pi9qNP4ZijU0vffhVLMBAtDA/bH79vy+c8a0z4n/iHQe7FuE1vRttS1/7G3",
"Serversignature": "NdnWRXKPiXnagmPZP3+ZeS+ZpstkWsZDYMus0jl/3VysVA4GFMM2j9Y66apLDRuoATh9ZCjWTqtqpNBelKvHj280uBdtyxD0VRCvDl95qjm5uzvV267C6+W2rzl4UavLgslWmA80z+bRCoK3u5A5UKgI4gQUh551ZaWT5/FDiDw=",
"Pastebin": "null",
"BSOD": "false",
"Hwid": "null",
"Delay": "1",
"Group": "Default",
"AntiProcess": "false",
"Anti": "false"
}
}