MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60. 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: 24


Intelligence 24 IOCs 1 YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60
SHA3-384 hash: 830546d8ed605c9c72dc2cef5aa845ffdb63a3766c510341dc8f8919923d50e3738dc014b9a76ba1e4ba04c38e9e88ac
SHA1 hash: 62e69ef38a40156e112d16ff53e28644381253e3
MD5 hash: c7d645f913665e22d48d5b4f15ed628e
humanhash: pasta-mobile-friend-monkey
File name:efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:64'512 bytes
First seen:2025-12-08 19:40:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'003 x AgentTesla, 19'907 x Formbook, 12'332 x SnakeKeylogger)
ssdeep 1536:FmImx6tX2kNff4sKu+UYFSup5boAPRUm3jSgrQTGZx:Fm9x6tmkN7Ku+UYF95boJm3jvGix
TLSH T1B653E8013BE98026F3BE8F7459F765814AFAF4AB2D12C55D1CC914CE0532B869A41BFB
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 abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
178.208.168.50:6161

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
178.208.168.50:6161 https://threatfox.abuse.ch/ioc/1671717/

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
NL NL
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/a3f526ff-d6b3-4ed5-a1a2-23b503530d3e/
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60.exe
Verdict:
Malicious activity
Analysis date:
2025-12-08 19:23:50 UTC
Tags:
asyncrat rat
Link:
https://app.any.run/tasks/ac9b52ce-166b-4521-8bae-457cd72e4b0f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43917/
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
Create hunting rule

Win.Keylogger.Marsilia-10040488-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693729c4881313558a2ba4e4
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Creating a window
Sending a custom TCP request
Setting a global event handler for the keyboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat base64 cmd fingerprint lolbin obfuscated razy reconnaissance reg samas schtasks vbnet
Link:
https://www.filescan.io/uploads/693729a3bba50eaf0427a925/reports/0d510541-4d36-4bb8-a045-91891d6736c1/overview
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Link:
https://www.hybrid-analysis.com/sample/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-08T05:38:00Z UTC
Last seen:
2025-12-08T19:06:00Z UTC
Hits:
~10
Detections:
Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b Trojan-PSW.Win32.Coins.sb HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.f
Link:
https://opentip.kaspersky.com/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60/results?tab=lookup
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7549c254-4388-435b-a671-f4919eb99833
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1829128
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60
Verdict:
AsyncRAT
YARA:
13 match(es)
Tags:
.Net AsyncRAT Executable Managed .NET PE (Portable Executable) PE File Layout RAT SOS: 0.23 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: sendtofucs.freed
PORT: 6161
Link:
https://app.malva.re/file/c7d645f913665e22d48d5b4f15ed628e
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60/
Verdict:
Malicious
Threat:
Family.ASYNCRAT
Link:
https://tip.neiki.dev/file/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-12-08 09:09:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
32 of 37 (86.49%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56274g7vr2w4jvuwsp7ats7ustlhn54rnp6uor5yx3fjucovpnqa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:zareooo55225 discovery rat spyware stealer
Link:
https://tria.ge/reports/251208-ydn5lsgm6v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
System Location Discovery: System Language Discovery
Reads user/profile data of web browsers
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
sendtofucs.freeddns.org:6161
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/9c4e4fba-dbe7-4d1f-9916-30a52a370203
Unpacked files
SH256 hash:
efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60
MD5 hash:
c7d645f913665e22d48d5b4f15ed628e
SHA1 hash:
62e69ef38a40156e112d16ff53e28644381253e3
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/7c6e4091-d480-491f-91eb-883c4e872961/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efb5fe1bf58e/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/efb5fe1bf58eadc4d69693fe09cbf494d676f7916bfd4747b8beca9a09d57b60

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:Macos_Infostealer_Wallets_8e469ea0
Create hunting rule
Author:Elastic Security
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: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)
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
Cape
https://www.capesandbox.com/analysis/43917/

Comments