MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949. 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: 20

Intelligence 20 IOCs YARA 21 File information Comments

SHA256 hash:	71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949
SHA3-384 hash:	8099de9d3c4ec85960cb5624876d1ad1cf585774200c0bbe20e5c5f332380a988d4bec30574c9020747418a5f1f82ec5
SHA1 hash:	d4e947a264f0e3eddf6dd31e2ec16c7256578fc5
MD5 hash:	a857a36ad55edd11feb85218f3129b40
humanhash:	whiskey-fix-quebec-oklahoma
File name:	wan.uk.com
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	816'128 bytes
First seen:	2026-02-04 01:39:41 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'754 x AgentTesla, 19'663 x Formbook, 12'252 x SnakeKeylogger)
ssdeep	3072:YuE2T0cE2Wfp3M3bBs13Ak411ejd6sMm+fKopu+CHjbhxHNgFTqSGqfo+MQCpq8B:YuEatb3b6iu7
Threatray	1'896 similar samples on MalwareBazaar
TLSH	T1E3052B2164092857E9DBA53BC4F7992F2710AE15FD516283E82F3D85F373B07EAC8606
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:	AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

141

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

AsyncRAT

Details

AsyncRAT

c2 socket addresses or a dead drop resolver url, a version, a mutex, an SSL certificate and server signature, an interval, varying flags, and possibly a filepath and a group

Link:

https://research.acce.ciphertechsolutions.com/results/e0b93b24-feaf-4003-8bb6-ec09531d3fe5/

Malware family:

asyncrat

ID:

File name:

_71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949.exe

Verdict:

Malicious activity

Analysis date:

2026-02-04 01:42:25 UTC

Tags:

auto-reg asyncrat

Link:

https://app.any.run/tasks/322853ae-32f0-40d7-a1a7-23a4aa3ec0e9

Note:

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

Detection:

AsyncRAT

Link:

https://www.capesandbox.com/analysis/51596/

Detection(s):

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9856570-1

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6982a3856b1af47db72c9753

Tags:

asyncrat autorun

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat asyncrat base64 config-extracted dcrat fareit fingerprint lolbin masquerade obfuscated razy reconnaissance reg schtasks unsafe vbnet windows

Link:

https://www.filescan.io/uploads/6982a382981ff1d38a475933/reports/4a7295a6-b81c-45f4-8d5d-cee5545d7491/overview

Verdict:

Malicious

Labled as:

Application.MSILheracles.Generic

Link:

https://www.hybrid-analysis.com/sample/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-02-04T01:25:00Z UTC

Last seen:

2026-02-04T05:38:00Z UTC

Hits:

~10

Detections:

PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic HEUR:Trojan.Win32.Generic HEUR:Backdoor.MSIL.SheetRat.gen Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.b

Link:

https://opentip.kaspersky.com/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b721cd1d-1b19-4985-bcf8-9c6b4c0e1e34

Score:

94%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949

Verdict:

AsyncRAT

YARA:

14 match(es)

Tags:

.Net AsyncRAT Executable Managed .NET PE (Portable Executable) PE File Layout RAT SOS: 0.21 Win 32 Exe x86

Malware Config

C2 Extraction:

CNC: wan.uk.com
PORT: 1337,1604,4782

Link:

https://app.malva.re/file/a857a36ad55edd11feb85218f3129b40

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949/

Verdict:

Malicious

Threat:

Family.ANARCHYRAT

Link:

https://tip.neiki.dev/file/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949

Threat name:

ByteCode-MSIL.Spyware.AsyncRAT

Status:

Malicious

First seen:

2026-02-04 01:40:33 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

27 of 36 (75.00%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=oh55nrdxzms7eahpdxa7pam5scwtf2af4dvxtnims2gegffsdfeq._file

Verdict:

malicious

Label(s):

asyncrat

AsyncRAT

5e088f3ae8bf2631e5aaa8de2facd537a65ef5e269924213e14ee41d94b6a446

AsyncRAT

7c8c576731dd13174bd9289726bc59c98fa0db27515da65d5f3434c5c2921d02

AsyncRAT

7f14cf5740bb204942ae69690aea4bb17dea9bee17323311a6613c766a716b24

AsyncRAT

c5bfd0abb2e443daf2b319726ee97aadc657aacde9f466228efe908e2193e9b3

AsyncRAT

e5cc1cac795755ade9067768ac3a2d037ab18977e4223291d55e636663a3d282

AsyncRAT

error

AsyncRAT

+ 1'886 additional samples on MalwareBazaar

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:crb defense_evasion discovery execution persistence rat

Link:

https://tria.ge/reports/260204-b3nttagx7b/

Behaviour

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Checks computer location settings

Executes dropped EXE

Async RAT payload

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

wan.uk.com:4782
wan.uk.com:1604
wan.uk.com:1337

Unpacked files

SH256 hash:

71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949

MD5 hash:

a857a36ad55edd11feb85218f3129b40

SHA1 hash:

d4e947a264f0e3eddf6dd31e2ec16c7256578fc5

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/31d72431-93d6-48f8-a97a-3dd33a642ba1/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/71fbd6c477cb/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/71fbd6c477cb25f200ef1dc1f7819d90ad32e805e0eb79b50c968c4314b21949

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:	AsyncRat Create hunting rule
Author:	kevoreilly, JPCERT/CC Incident Response Group
Description:	AsyncRat Payload

Rule name:	asyncrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

Rule name:	asyncrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	malware_asyncrat Create hunting rule
Description:	detect AsyncRat in memory
Reference:	https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp

Rule name:	malware_asyncrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

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

Rule name:	msil_suspicious_use_of_strreverse Create hunting rule
Author:	dr4k0nia
Description:	Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse

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:	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:	Windows_Generic_Threat_ce98c4bc Create hunting rule
Author:	Elastic Security

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

Rule name:	win_asyncrat_j1 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects AsyncRAT

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)