MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66. 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 25 File information Comments

SHA256 hash:	99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66
SHA3-384 hash:	3c00daeccabf70d98c5de76135a356097ac5b37019aed062144cc8902bc83f131188dcbda321191669a1559bfeedbb38
SHA1 hash:	a9083e1c83d0bae46a71a220b5639640d9e091e8
MD5 hash:	47bb14b0f01f6b8cc063ef578bbd3615
humanhash:	lithium-william-moon-river
File name:	AWS.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	57'344 bytes
First seen:	2026-01-14 17:56:32 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'115 x AgentTesla, 20'117 x Formbook, 12'357 x SnakeKeylogger)
ssdeep	1536:KunHpTJZ+2slVJjMbgXSQ3Xv7sdty0S1lv2XzB:KunJTJZ+2gTjMbgxDsv7Sfv2jB
TLSH	T183435D003BE9813BF1BE4F78A8F21141467AF6677603E54E1C8452DB5613FC69A42BFA
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
dhash icon	000000bb58040900 (1 x AsyncRAT)
Reporter	Anonymous
Tags:	AsyncRAT c2 exe

Anonymous

AWS.exe is a malicious Windows PE masquerading as a legitimate Amazon Web Services component. The sample is flagged as malicious by 49/70 AV vendors and exhibits behavior consistent with AsyncRAT-like malware.

C2 communication evidence:
The malware contacts multiple external domains including
gemwin.me, www.gemwin.me, allclean.jp.net, davidwilliam.uk.com, and tourne.eu.com. While some domains appear aged, their combined usage and grouping indicate shared attacker-controlled infrastructure rather than legitimate AWS services.

Observed network activity, together with debugger detection, long sleep delays, and obfuscation, strongly indicates active C2 communication for remote control and botnet operations.

Intelligence

File Origin

# of uploads :

# of downloads :

218

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/c4e13398-425d-493c-8fe2-7bed845ac8aa/

Malware family:

asyncrat

ID:

File name:

AWS.exe

Verdict:

Malicious activity

Analysis date:

2026-01-14 17:58:13 UTC

Tags:

auto-reg asyncrat rat

Link:

https://app.any.run/tasks/8d8813a5-eabe-419f-a921-244691b89cec

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/48921/

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=6967d902ef906a21abcd4b45

Tags:

asyncrat autorun

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat asyncrat base64 config-extracted fareit fingerprint lolbin obfuscated packed razy reconnaissance reg samas schtasks vbnet

Link:

https://www.filescan.io/uploads/6967d8ff60d1ef876defac05/reports/361f9e07-6000-450b-960e-a31ed91fd489/overview

Verdict:

Malicious

Labled as:

AsyncRAT.Marte.B.Generic

Link:

https://www.hybrid-analysis.com/sample/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-01-14T14:48:00Z UTC

Last seen:

2026-01-16T13:58:00Z UTC

Hits:

~100

Detections:

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

Link:

https://opentip.kaspersky.com/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f82564a3-5c57-4537-9803-22f9af136a0e

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66

Verdict:

njRat

YARA:

14 match(es)

Tags:

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

Malware Config

C2 Extraction:

CNC: tourne.eu.com,www.tourne.eu.com,davidwilliam.uk.com,www.davidwilliam.uk.com,allclean.jp.net,www.allclean.jp.net,gemwin.me,www.gemwin.me
PORT: 80,443,1604,4444,5555,6606,7707,8080,8808

Link:

https://app.malva.re/file/47bb14b0f01f6b8cc063ef578bbd3615

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66/

Verdict:

Malicious

Threat:

Family.ANARCHYRAT

Link:

https://tip.neiki.dev/file/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66

Threat name:

ByteCode-MSIL.Spyware.AsyncRAT

Status:

Malicious

First seen:

2026-01-14 17:57:14 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

32 of 38 (84.21%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=tfji5gjdofwzqdcu73zeb7ph7nsghiwmcoy6ppz54coqmnpajrta._file

Verdict:

malicious

Label(s):

asyncrat

Similar samples:

error

AsyncRAT

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:meta defense_evasion discovery execution persistence rat

Link:

https://tria.ge/reports/260114-wjpl8aaw9h/

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:

tourne.eu.com:6606
tourne.eu.com:7707
tourne.eu.com:8808
tourne.eu.com:1604
tourne.eu.com:4444
tourne.eu.com:443
tourne.eu.com:80
tourne.eu.com:5555
tourne.eu.com:8080
www.tourne.eu.com:6606
www.tourne.eu.com:7707
www.tourne.eu.com:8808
www.tourne.eu.com:1604
www.tourne.eu.com:4444
www.tourne.eu.com:443
www.tourne.eu.com:80
www.tourne.eu.com:5555
www.tourne.eu.com:8080
davidwilliam.uk.com:6606
davidwilliam.uk.com:7707
davidwilliam.uk.com:8808
davidwilliam.uk.com:1604
davidwilliam.uk.com:4444
davidwilliam.uk.com:443
davidwilliam.uk.com:80
davidwilliam.uk.com:5555
davidwilliam.uk.com:8080
www.davidwilliam.uk.com:6606
www.davidwilliam.uk.com:7707
www.davidwilliam.uk.com:8808
www.davidwilliam.uk.com:1604
www.davidwilliam.uk.com:4444
www.davidwilliam.uk.com:443
www.davidwilliam.uk.com:80
www.davidwilliam.uk.com:5555
www.davidwilliam.uk.com:8080
allclean.jp.net:6606
allclean.jp.net:7707
allclean.jp.net:8808
allclean.jp.net:1604
allclean.jp.net:4444
allclean.jp.net:443
allclean.jp.net:80
allclean.jp.net:5555
allclean.jp.net:8080
www.allclean.jp.net:6606
www.allclean.jp.net:7707
www.allclean.jp.net:8808
www.allclean.jp.net:1604
www.allclean.jp.net:4444
www.allclean.jp.net:443
www.allclean.jp.net:80
www.allclean.jp.net:5555
www.allclean.jp.net:8080
gemwin.me:6606
gemwin.me:7707
gemwin.me:8808
gemwin.me:1604
gemwin.me:4444
gemwin.me:443
gemwin.me:80
gemwin.me:5555
gemwin.me:8080
www.gemwin.me:6606
www.gemwin.me:7707
www.gemwin.me:8808
www.gemwin.me:1604
www.gemwin.me:4444
www.gemwin.me:443
www.gemwin.me:80
www.gemwin.me:5555
www.gemwin.me:8080

Verdict:

Malicious

Tags:

rat asyncrat Win.Packed.Razy-9625918-0

YARA:

AsyncRat_Payload JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc asyncrat malware_asyncrat win_asyncrat_unobfuscated

Link:

https://app.threat.zone/submission/2e7e3817-daa8-4b81-a9d9-2f29a8039c19

Unpacked files

SH256 hash:

99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66

MD5 hash:

47bb14b0f01f6b8cc063ef578bbd3615

SHA1 hash:

a9083e1c83d0bae46a71a220b5639640d9e091e8

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/087c95d3-d947-41b5-a545-c17a17eb5d0d/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/99528e992371/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/99528e9923716d980c54fef240fde7fb6463a2cc13b1e7bf3de09d0635e04c66

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

Rule name:	SUSP_Reverse_Run_Key Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects a Reversed Run Key

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)