MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8f6502f9cc4e6916a6481bf77b2e52473143f39a6fb258186edbb146e577fa65. 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
| SHA256 hash: | 8f6502f9cc4e6916a6481bf77b2e52473143f39a6fb258186edbb146e577fa65 |
|---|---|
| SHA3-384 hash: | 3d253a2271fabf3ff6784c3050c62611712b768917e21b7f743cd171f1135f447586124a82af1bc3e2ca1acf4d74332e |
| SHA1 hash: | e15367001747acd7677288d3ce3d123b903d6827 |
| MD5 hash: | fcf5c0b9e4a6cb5b034f32a75a4396aa |
| humanhash: | vermont-fanta-massachusetts-freddie |
| File name: | I9BETAPP.exe |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 28'672 bytes |
| First seen: | 2026-05-10 18:12:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (49'073 x AgentTesla, 20'029 x Formbook, 12'352 x SnakeKeylogger) |
| ssdeep | 384:bNHPiWD4iXdRz2DgtyeEHjP2S3auH9qbuUsU/QxnCJfJbndnjJ/S7uq0+:bFPJcA72styneSXIb4BibnjYuq0+ |
| Threatray | 572 similar samples on MalwareBazaar |
| TLSH | T1F3D24D0433E8C5B2D2FD46BED83286008775E5974953DB6A1FC990EE2A237CD8E14BD5 |
| TrID | 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.2% (.EXE) Win64 Executable (generic) (6522/11/2) 4.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter | Anonymous |
| Tags: | AsyncRAT c2 exe RAT windows |
Anonymous
Confirmed malware sample collected from phishing/social media abuse campaign.Intelligence
File Origin
# of uploads :
1
# of downloads :
174
Origin country :
VNVendor Threat Intelligence
Malware configuration found for:
AsyncRAT
Details
Malware family:
asyncrat
ID:
1
File name:
I9BETAPP.exe
Verdict:
Malicious activity
Analysis date:
2026-05-10 18:11:19 UTC
Tags:
rat asyncrat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRAT
Verdict:
Malicious
Score:
96.5%
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm asyncrat base64 fareit fingerprint lolbin obfuscated razy reconnaissance reg schtasks vbnet
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-10T15:17:00Z UTC
Last seen:
2026-05-10T15:41:00Z UTC
Hits:
~10
Detections:
Backdoor.MSIL.Crysan.b HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c
Malware family:
AsyncRAT
Verdict:
Malicious
Score:
92%
Verdict:
Malware
File Type:
PE
Verdict:
AsyncRAT
YARA:
10 match(es)
Tags:
.Net AsyncRAT Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.21 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: ok99.jp.net
PORT: 43
PORT: 43
Detection:
asyncrat
Verdict:
Malicious
Threat:
Family.ASYNCRAT
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2026-05-10 18:14:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 562 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat discovery rat
Behaviour
Suspicious use of AdjustPrivilegeToken
System Location Discovery: System Language Discovery
Family: AsyncRat
Unpacked files
SH256 hash:
8f6502f9cc4e6916a6481bf77b2e52473143f39a6fb258186edbb146e577fa65
MD5 hash:
fcf5c0b9e4a6cb5b034f32a75a4396aa
SHA1 hash:
e15367001747acd7677288d3ce3d123b903d6827
Detections:
AsyncRAT
Malware family:
AsyncRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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 |
|---|---|
| Author: | kevoreilly, JPCERT/CC Incident Response Group |
| Description: | AsyncRat Payload |
| Rule name: | asyncrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
| Rule name: | AsyncRAT_057B |
|---|---|
| Author: | kirkderp |
| Description: | AsyncRAT 0.5.7B -- minimal .NET RAT with PBKDF2 key derivation and MessagePack serialization |
| Reference: | https://github.com/kirkderp/yara |
| Rule name: | asyncrat_kingrat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | DebuggerCheck__RemoteAPI |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse |
|---|---|
| Author: | ditekSHen |
| Description: | Detects file containing reversed ASEP Autorun registry keys |
| Rule name: | malware_asyncrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
| Rule name: | malware_asyncrat |
|---|---|
| Description: | detect AsyncRat in memory |
| Reference: | https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp |
| Rule name: | msil_suspicious_use_of_strreverse |
|---|---|
| Author: | dr4k0nia |
| Description: | Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse |
| Rule name: | Multifamily_RAT_Detection |
|---|---|
| Author: | Lucas Acha (http://www.lukeacha.com) |
| Description: | Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | Njrat |
|---|---|
| Author: | botherder https://github.com/botherder |
| Description: | Njrat |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_DOTNET_PE_List_AV |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detecs .NET Binary that lists installed AVs |
| Rule name: | SUSP_Reverse_Run_Key |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detects a Reversed Run Key |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
| Rule name: | Windows_Generic_Threat_ce98c4bc |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_asyncrat_unobfuscated |
|---|---|
| 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 |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
Comments
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You need to login to in order to write a comment. Login with your abuse.ch account.RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:
{
"sha256": "8f6502f9cc4e6916a6481bf77b2e52473143f39a6fb258186edbb146e577fa65",
"yara_possible_family": "asyncrat",
"key": "None",
"salt": "None",
"config": {
"Ports": [
"443"
],
"Hosts": [
"ok99.jp.net"
],
"Version": "0.5.7B",
"Install": "false",
"InstallFolder": "AppData",
"InstallFile": "au88app.exe",
"Key": "U2VjdXJlUmFuZG9tS2V5Rm9yUmF0MjAyNlByb2plY3Q=",
"Mutex": "%MTX%",
"Certificate": "%Certificate%",
"Serversignature": "%Serversignature%",
"Anti": "false",
"Pastebin": "null",
"BDOS": "false",
"Delay": "0",
"Group": "Debug"
}
}