MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56. 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

njrat

Vendor detections: 18

Intelligence 18 IOCs YARA 20 File information Comments 1

SHA256 hash:	03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56
SHA3-384 hash:	e6d7836a03f96f491b0addde609f9e15943b0d300db41d3ae4aaafa37ae46185cc4367c98a6009d3b548a6f569a2ae00
SHA1 hash:	54224cce3a9599b0ebde07fc49fab56c33825839
MD5 hash:	2cdbe2d9679019e2c6af8510140c1920
humanhash:	nine-network-low-massachusetts
File name:	Start (1).exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	49'152 bytes
First seen:	2025-05-28 11:47:46 UTC
Last seen:	2025-05-28 11:48:29 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'239 x AgentTesla, 20'491 x Formbook, 12'372 x SnakeKeylogger)
ssdeep	768:BZAmcILiCu2Y+biotelDSN+iV08Ybygekb1pCvEgK/J8iVc6KN:BZAt24otKDs4zb1rbankJ8iVclN
Threatray	1'777 similar samples on MalwareBazaar
TLSH	T178235D4037E88136F2BD4B74ACF2A141867AE2576903CA5D6CC814EA2B13FC596137FE
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	Anonymous
Tags:	exe NjRAT RAT

Anonymous

rat

Intelligence

File Origin

# of uploads :

# of downloads :

528

Origin country :

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

Start (1).exe

Verdict:

Malicious activity

Analysis date:

2025-05-28 11:50:30 UTC

Tags:

pastebin auto-reg asyncrat

Link:

https://app.any.run/tasks/23f41775-56f2-4a45-ad96-e8811d94874d

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/6005/

Detection(s):

Win.Trojan.DcRat-10039889-0

Sanesecurity.Malware.29669.UNOFFICIAL

Win.Malware.Generickdz-9865912-0

Win.Malware.Zusy-10034587-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6836f953668438e362e7aa83

Tags:

autorun proxy

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

DNS request

Connection attempt

Sending a custom TCP request

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 asyncrat base64 configsecuritypolicy evasive hacktool lolbin mpcmdrun msconfig njrat njrat obfuscated rat reconnaissance regedit vbnet

Link:

https://www.filescan.io/uploads/6836f80a171e01f9592f7023/reports/b102f22d-1633-4ed7-9e73-097a57424cbc/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/367e34da-e5e0-45be-8245-03c8fd2968ff

Result

Threat name:

AsyncRAT, DcRat

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1700621

Signature

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Connects to a pastebin service (likely for C&C)

Connects to many ports of the same IP (likely port scanning)

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: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

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 DcRat

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56

Detection:

dcrat

Link:

https://mwdb.cert.pl/sample/03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56/

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2024-08-22 17:48:49 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

31 of 36 (86.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=apbl5bvwzm2svz5pzlfmdjnkd43nhb7btldi6lupzjewf7jnnzla._file

Verdict:

malicious

Label(s):

asyncrat

njrat

8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b

njrat

8f0613fe4583c969434cb928ed94baf45c505d39af6a4cc0217be08d2378bc1f

njrat

b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c

njrat

b3ebae9c04c8ab1c5aee3c6733fd02bd67117d7028666c71f385dbb2fce426ff

njrat

daa19bc1bbf65c80278076621afb8764b5d258d4b3a7280f6455dde812bc24c3

njrat

error

njrat

+ 1'767 additional samples on MalwareBazaar

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default rat

Link:

https://tria.ge/reports/250528-nyk9cawjt9/

Behaviour

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Legitimate hosting services abused for malware hosting/C2

Checks computer location settings

Executes dropped EXE

Async RAT payload

AsyncRat

Asyncrat family

Verdict:

Malicious

Tags:

rat asyncrat dcrat Win.Trojan.DcRat-10039889-0

YARA:

Windows_Generic_Threat_ce98c4bc Windows_Trojan_DCRat_1aeea1ac asyncrat win_asyncrat_unobfuscated

Link:

https://app.threat.zone/submission/89afa044-24de-4a74-a327-5a91543ebb3e

Unpacked files

SH256 hash:

03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56

MD5 hash:

2cdbe2d9679019e2c6af8510140c1920

SHA1 hash:

54224cce3a9599b0ebde07fc49fab56c33825839

Detections:

AsyncRAT

DCRat

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

Link:

https://www.unpac.me/results/4dc8fd58-3f25-4c63-8626-c63d12d7f19a/

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/03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56

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_B64_Artifacts Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.

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:	Windows_Generic_Threat_ce98c4bc Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_DCRat_1aeea1ac 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.

Cape

https://www.capesandbox.com/analysis/6005/

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 2025-05-28 11:50:58 UTC

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

{
"sha256": "03c2be86b6cb352ae7afcacac1a5aa1f36d387e19ac68f2e8fca4962fd2d6e56",
"yara_possible_family": "dcrat",
"key": "1d19451644cf0354e2a0e1abeaf3498e168b5caf34aca8c6d4f20ef7f10cf5cd",
"salt": "4463526174427971777164616e6368756e",
"config": {
"Ports": [],
"Hosts": [],
"Version": " 1.0.7",
"Install": "true",
"InstallFolder": "%Temp%",
"InstallFile": "WindowsSecurityHealthService.exe",
"Key": "ZHI2S2R6U0Rhd3d1WHlaZHpMU3RCM2cwelVSRGtUeEg=",
"Mutex": "WindowsSecurityHealthService",
"Certificate": "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",
"Serversignature": "LodiAnTcm4in1NuW5TX6W5MSZkLk6/XvCCGr91R20zCUCqKrJYMWojCkcUamvZE68/Pj6sp3FbdSryKaV+3EBVJ3mthI1uGhhCF5HmVpe//Z0Oo6r2BQG0y4uR7lBKFqwe3PajlJfZm77OOFrIpUFs+21ZwaUqf58QvBaUCZNfk=",
"Pastebin": "https://pastebin.com/raw/RML1A9Pm",
"BSOD": "false",
"Hwid": "null",
"Delay": "5",
"Group": "Default",
"AntiProcess": "false",
"Anti": "false"
}
}