MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e. 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: 22

Intelligence 22 IOCs YARA 26 File information Comments

SHA256 hash:	1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e
SHA3-384 hash:	a58216d4196c56511b89a037c69173d0e24db95f78fdd5418aa112193e700d89f42b57846b371fb117ee5592248e1dc5
SHA1 hash:	5b14ed256bf7055b222e566d542c8d3b4e7b0aa0
MD5 hash:	2f693cd0e5bcfe531f84ae38eddd1b7b
humanhash:	high-fish-pasta-hot
File name:	AsyncClient.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	46'080 bytes
First seen:	2025-12-09 17:09:41 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep	768:Juy04NTdMCbRWUJDObmo2qLRKjPGaG6PIyzjbFgX3i/s+L0pPvIZNhtBDZbx:Juy04NTdxe24KTkDy3bCXS0iW2Djdbx
TLSH	T10E231B003BE8812BF6BE4F7899F26145467AF1A32603D64D1CC452DB5713FC69A42AFE
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	Amethyste
Tags:	Async RAT AsyncRAT exe RAT

Intelligence

File Origin

# of uploads :

# of downloads :

159

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/cb64120e-9c98-4cd8-acca-cc83e6dffdc7/

Malware family:

asyncrat

ID:

File name:

_1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e.exe

Verdict:

Malicious activity

Analysis date:

2025-12-09 17:10:39 UTC

Tags:

asyncrat rat

Link:

https://app.any.run/tasks/85ea6c7a-8c9e-4123-8941-b68584a76c1b

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/44021/

Detection(s):

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9856570-1

Win.Packed.AsyncRAT-9861056-1

Verdict:

Malicious

Score:

94.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=693857ffbde6a3e5970f6c4f

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Сreating synchronization primitives

DNS request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

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

Link:

https://www.filescan.io/uploads/693857fc98941bdf1de5934b/reports/134bf095-fb4e-4dc5-8c1d-47303a4d8763/overview

Verdict:

Malicious

Labled as:

Trojan.Agent

Link:

https://www.hybrid-analysis.com/sample/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-12-09T13:42:00Z UTC

Last seen:

2025-12-10T03:28:00Z UTC

Hits:

~10

Detections:

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

Link:

https://opentip.kaspersky.com/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/985851a9-683a-483f-8daa-4724dd291029

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e

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:

PORT: 160,443,4782,5552,6606,7707,8848

Link:

https://app.malva.re/file/2f693cd0e5bcfe531f84ae38eddd1b7b

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e/

Verdict:

Malicious

Threat:

Family.ASYNCRAT

Link:

https://tip.neiki.dev/file/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2025-12-09 17:10:21 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

33 of 38 (86.84%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ciqlhslrwguh2nvvw77gutjfryxvwosinzyttdjj5ze5kdttmypa._file

Verdict:

malicious

Label(s):

asyncrat

Similar samples:

error

AsyncRAT

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default discovery rat

Link:

https://tria.ge/reports/251209-vpt88abm8t/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

apsom.org:443
apsom.org:6606
apsom.org:7707
apsom.org:8848
apsom.org:4782
apsom.org:5552
apsom.org:1604
www.apsom.org:443
www.apsom.org:6606
www.apsom.org:7707
www.apsom.org:8848
www.apsom.org:4782
www.apsom.org:5552
www.apsom.org:1604
malware.apsom.org:443
malware.apsom.org:6606
malware.apsom.org:7707
malware.apsom.org:8848
malware.apsom.org:4782
malware.apsom.org:5552
malware.apsom.org:1604

Verdict:

Malicious

Tags:

rat asyncrat Win.Packed.Razy-9625918-0

YARA:

AsyncRat_Payload JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc Windows_Trojan_Asyncrat_11a11ba1 asyncrat malware_asyncrat win_asyncrat_unobfuscated

Link:

https://app.threat.zone/submission/b445cc74-0011-41e5-86ee-943da6956cad

Unpacked files

SH256 hash:

1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e

MD5 hash:

2f693cd0e5bcfe531f84ae38eddd1b7b

SHA1 hash:

5b14ed256bf7055b222e566d542c8d3b4e7b0aa0

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/6f4a5011-f898-427d-abf6-5fa981cbfd42/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1220b3c971b1/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/1220b3c971b1a87d36b5b7fe6a4d258e2f5b3a486e71398d29ee49d50e73661e

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:	Windows_Trojan_Asyncrat_11a11ba1 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)