MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85a229fa75bcf5ef41066bb0618ade943cba3b72c377fee22bc2ff94dfaf4160. 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: 17


Intelligence 17 IOCs YARA 22 File information Comments

SHA256 hash: 85a229fa75bcf5ef41066bb0618ade943cba3b72c377fee22bc2ff94dfaf4160
SHA3-384 hash: 83fbc9febcf2f1bc1cb71d3d80644d9269572200ee09adbe8190968054006971b2e331f7f6b0785961390e31ff8d93a3
SHA1 hash: ac38d4936c5bdf74c2ecdd3d6da8adc35db12b6b
MD5 hash: b9b9e94e807a98caa367cf2b4b995eeb
humanhash: coffee-eleven-island-stairway
File name:F8BETAPP.exe
Download: download sample
Signature AsyncRAT
File size:27'136 bytes
First seen:2026-07-27 03:18:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'125 x AgentTesla, 20'144 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 384:5Tdv2D9YfxWcvHtZARPn9j/H9qbuUsMbQxnCJfJBndnjJXKyl:1dvhDt+LIbIBiBnGS
TLSH T1D1C22A0833E4C671D2FD4ABA8C33D5009B75E95B9913D75A6FC890AD29237CD8A14FE4
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 exe RAT


Avatar
Anonymous
Confirmed malware sample collected from phishing/social media abuse campaign.

Intelligence


File Origin
# of uploads :
1
# of downloads :
182
Origin country :
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
F8BETAPP.exe
Verdict:
Malicious activity
Analysis date:
2026-07-27 03:22:16 UTC
Tags:
rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat base64 fingerprint lolbin obfuscated reconnaissance schtasks vbnet
Verdict:
AsyncRAT
YARA:
10 match(es)
Tags:
.Net AsyncRAT Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.20 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: jjk.co.com
PORT: 43
Gathering data
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:
85a229fa75bcf5ef41066bb0618ade943cba3b72c377fee22bc2ff94dfaf4160
MD5 hash:
b9b9e94e807a98caa367cf2b4b995eeb
SHA1 hash:
ac38d4936c5bdf74c2ecdd3d6da8adc35db12b6b
Detections:
win_asyncrat_w0 AsyncRAT
Please note that we are no longer able to provide a coverage score for Virus Total.

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 (https://www.lukeacha.com)
Description:Generic detection for multiple RAT families, PUPs, packers and suspicious executables. NOTE: This rule may produce false positives. Updated May 2026 to reduce False Positives.
Rule name:NET
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:rat_win_asyncrat
Author:Sekoia.io
Description:Detect AsyncRAT based on specific strings
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

AsyncRAT

Executable exe 85a229fa75bcf5ef41066bb0618ade943cba3b72c377fee22bc2ff94dfaf4160

(this sample)

  
Delivery method
Distributed via web download

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