MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503. 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: 18

Intelligence 18 IOCs YARA 24 File information Comments 1

SHA256 hash:	637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503
SHA3-384 hash:	bd422f63fe7ba6dc39f03e20877c252229e8a665b873f504b8a4771f54934003f645afb436e2d7b7b2862c985fcbc134
SHA1 hash:	f513548567cf3596ede6596b5bb5fb32017ae0e3
MD5 hash:	acf12abfe0bd54591b499058d1ad63df
humanhash:	triple-minnesota-winner-angel
File name:	uxw5rr.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	65'548 bytes
First seen:	2025-12-22 02:43:13 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'693 x Formbook, 12'274 x SnakeKeylogger)
ssdeep	768:8seYmfC0mCcvenc32fqNz6A5RyIvrR4Aeb1ngUptWNuIrAK8RccjrWBNOR:JCcS02fkzNRbF4xbuU3CuIrvYcM2OR
TLSH	T1E8532A143BE95216E2FE9F7D99F12545CABAF6132502D74F1CC002CE4A23FC69A127E6
TrID	51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 7.4% (.EXE) Win64 Executable (generic) (10522/11/4) 4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	BastianHein
Tags:	AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

108

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/7fe84465-93fe-4146-9ed5-d13ac5a4b024/

Malware family:

asyncrat

ID:

File name:

_637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503.exe

Verdict:

Malicious activity

Analysis date:

2025-12-22 02:43:49 UTC

Tags:

asyncrat

Link:

https://app.any.run/tasks/11553903-4b96-448d-afb2-8634c59f4790

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/45693/

Detection(s):

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9856570-1

SecuriteInfo.com.Variant.Genie.8DN.1547.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6948b056a6c88bb4cc2365e2

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-12-16T15:19:00Z UTC

Last seen:

2025-12-17T04:13:00Z UTC

Hits:

~10

Detections:

HEUR:Backdoor.MSIL.SheetRat.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b

Link:

https://opentip.kaspersky.com/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/fe0622b8-b87a-4eda-9489-365d17cb8439

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503

Verdict:

njRat

YARA:

9 match(es)

Tags:

.Net AsyncRAT Executable Managed .NET njRat PE (Portable Executable) PE Memory-Mapped (Dump) RAT SOS: 0.22

Malware Config

C2 Extraction:

PORT: 25,80,443,8443
PORT: 25,80,443,8443

Link:

https://app.malva.re/file/acf12abfe0bd54591b499058d1ad63df

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503/

Verdict:

Malicious

Threat:

Family.ASYNCRAT

Link:

https://tip.neiki.dev/file/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503

Threat name:

Win32.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2025-12-16 21:04:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

29 of 36 (80.56%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=mn6qwhxc7fvzuizquhhccruldowfmxjxpllarqvftxiyob32cubq._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/251223-lp1xbsslgz/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Browser Information Discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

System Time Discovery

Drops file in Program Files directory

Drops file in Windows directory

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/ca6cf962-02f2-4369-bd9f-430f9bd48255

Unpacked files

SH256 hash:

637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503

MD5 hash:

acf12abfe0bd54591b499058d1ad63df

SHA1 hash:

f513548567cf3596ede6596b5bb5fb32017ae0e3

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/116518ee-2a02-41c7-ae9c-eeff7b1371db/

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

Threat name:

Suspicious File

Score:

0.42

Link:

https://yomi.yoroi.company/submissions/637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503

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:	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:	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_NET_Msil_Suspicious_Use_StrReverse Create hunting rule
Author:	dr4k0nia, modified by Florian Roth
Description:	Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:	https://github.com/dr4k0nia/yara-rules

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)

Rule name:	win_asyncrat_w0 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

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/45693/

Comments

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commented on 2025-12-22 02:46:23 UTC

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

{
"sha256": "637d0b1ee2f96b9a2330a1ce21468b1bac565d377ad608c2a59dd187077a1503",
"yara_possible_family": "asyncrat",
"key": "None",
"salt": "None",
"config": {
"Ports": [
"JRybT+eymkHYtgbDFWW+kUXsoYdi/cB1pOSWRqA/52+6R4svdi+3GHFrPPbZhmzh4iRX91tu2n2kOs9mlFjz/Q=="
],
"Hosts": [
"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"
],
"HostsFE": "cakhiazxt.cc,www.cakhiazxt.cc,data.cakhiazxt.cc,malware.cakhiazxt.cc,ddos.cakhiazxt.cc,v2.cakhiazxt.cc,v3.cakhiazxt.cc,atex.cakhiazxt.cc,phishing.cakhiazxt.cc,backup.cakhiazxt.cc,quantri.cakhiazxt.cc",
"Version": "uNDrlF5YlLthrQ/pYVWY4luN5tNQ8vmjLoNPclhcgkrJg5j82F3qns97F2Li1ncc31m8sHsznOHaBSdgrzEJEQ==",
"Install": "Os+PGWyO8ysoBgdMLHQHe4ymHBD3jov72KXg6v10K46sRn+rnuy4qC6Ebx/ksIcjXIl4LeBQWcIDcYWpMt/e/w==",
"InstallFolder": "%AppData%",
"InstallFile": "gClient.exe",
"Key": "b2gwVnJVUFNLNlRFY3VIeEd1N1owNFhyY2JBOE13Ymk=",
"Mutex": "mhr3Se+QmjWKQ91+C+/L+p4jGPQklkpQ3nJQ3PvqQZjgwco3cZbZ7tADPzGoCYZq2sGimp9PlCMrGL93Zaa33A==",
"Certificate": "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",
"Serversignature": "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",
"Anti": "AMaJR/8QKOesCfGMU1zPuWYsMsORwOz/x71OR3RTYFzdtevDELUMYQO5lfp4BCy2XXLM39NzFDaiwZIIRcFiYQ==",
"Pastebin": "PUUXUdHlzWRtgYH2sOjKQFkbzTsbBkKyNI3ZCcEc03PCD63jsKsY9xvisTx0L/J4moxlYpSGUSx9b+AFi/+twA==",
"BDOS": "qNnpkHegshSd5MZ8TQDtHZSYsjSx2vuEZexiDveA/zDYTlLHX1EE0n7jxjL3Qv8dsH4nG92rvW5NVz2+K9tFiw==",
"Hwid": "null",
"Delay": "9",
"Group": "40MLPl1RRnqs3JNEcLQoKAUqNNM59O+Ma8xeAmX9I4KilRcrGy9SFQNLBbT5df5hDDbxt5NyAgbaJnvqeqN7MA=="
}
}