MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2. 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 1 YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
SHA3-384 hash: c51eaf4d3151b40bcc995d34f71484470effa7d69465bbd6538712eb19675225d678194ce7a262b8960ce46e6ca231d6
SHA1 hash: c607a3173623290d432f1ccedad3ae1326b0ae3e
MD5 hash: 1f2e02859b2c045f2e526fc027697379
humanhash: foxtrot-hydrogen-bluebird-butter
File name:PO20240326FDP012X.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:443'392 bytes
First seen:2025-11-24 04:10:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:5LoQZkJEMP4a05dcYGG0v/BfzgbBJPN5zz7/Pbu2LJWhxvTPCIIuFUooOPG6FhU/:51kyaGdzzjPN5zz7/DuP+IIu4O5UvF
Threatray 4 similar samples on MalwareBazaar
TLSH T1619401886643DB13CDA567B80AA1F27417BD1EBEA902E7178FD97DDB7963B044D00243
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
104.37.174.84:9006

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
104.37.174.84:9006 https://threatfox.abuse.ch/ioc/1649148/

Intelligence

File Origin
# of uploads :
1
# of downloads :
139
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
_666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2.exe
Verdict:
Malicious activity
Analysis date:
2025-11-24 04:12:13 UTC
Tags:
auto-sch-xml asyncrat
Link:
https://app.any.run/tasks/eaa0ff18-6d95-4de7-b078-bab9c86bcb4d

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/41199/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6923dae29c25de0dc401baa6
Tags:
micro spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed phishing vbnet
Link:
https://www.filescan.io/uploads/6923dab7deea95d50b24c4de/reports/6763071d-4834-418a-b0c2-5335a6edbe64/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-24T00:40:00Z UTC
Last seen:
2025-11-25T10:16:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb Backdoor.MSIL.Crysan.c PDM:Trojan.Win32.Generic HEUR:Trojan-Spy.MSIL.Noon.gen HEUR:Trojan.MSIL.Taskun.sb Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.b
Link:
https://opentip.kaspersky.com/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2/results?tab=lookup
Malware family:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9e15431a-82c7-430e-b1e7-8613b3d7c8bc
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1819722
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1819722 Sample: PO20240326FDP012X.exe Startdate: 24/11/2025 Architecture: WINDOWS Score: 100 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 7 PO20240326FDP012X.exe 7 2->7         started        11 SEcjXkh.exe 5 2->11         started        process3 file4 33 C:\Users\user\AppData\Roaming\SEcjXkh.exe, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp13CE.tmp, XML 7->35 dropped 37 C:\Users\user\...\PO20240326FDP012X.exe.log, ASCII 7->37 dropped 49 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 7->51 53 Adds a directory exclusion to Windows Defender 7->53 55 Injects a PE file into a foreign processes 7->55 13 powershell.exe 23 7->13         started        16 PO20240326FDP012X.exe 2 7->16         started        19 schtasks.exe 1 7->19         started        57 Multi AV Scanner detection for dropped file 11->57 21 schtasks.exe 1 11->21         started        23 SEcjXkh.exe 2 11->23         started        signatures5 process6 dnsIp7 59 Loading BitLocker PowerShell Module 13->59 25 WmiPrvSE.exe 13->25         started        27 conhost.exe 13->27         started        39 104.37.174.84, 49685, 9006 MAJESTIC-HOSTING-01US United States 16->39 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.40 Win 32 Exe x86
Link:
https://app.malva.re/file/1f2e02859b2c045f2e526fc027697379
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2/
Verdict:
Malicious
Threat:
Family.ASYNCRAT
Link:
https://tip.neiki.dev/file/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-11-24 04:10:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mzxaqn6yjkfgddsa6sf47c4mdggkwtatgrotgo3llogrc2asdhja._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
64a189213a5ba29b7d55ab22fb3995c4c60755746764b97a9d6124a86c2e9b44
AsyncRAT
666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
AsyncRAT
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery execution persistence rat
Link:
https://tria.ge/reports/251124-ermn6aaj7v/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
104.37.174.84:9006
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/999da787-aab4-4b3d-b9c4-7675df742e88
Unpacked files
SH256 hash:
666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
MD5 hash:
1f2e02859b2c045f2e526fc027697379
SHA1 hash:
c607a3173623290d432f1ccedad3ae1326b0ae3e
Link:
https://www.unpac.me/results/1adeedac-aaf4-42d6-aabb-9be6839cd0e7/
SH256 hash:
42474303d63c1ce4c6a74e683d20f21797ecf3c4e3978e863e79656d0a92e8de
MD5 hash:
5546f6520a2c11d50e68f561d05a1e3f
SHA1 hash:
12814a26e3fbe36a6b61f2672ffc07fee6b95745
Link:
https://www.unpac.me/results/1adeedac-aaf4-42d6-aabb-9be6839cd0e7/
SH256 hash:
e711e633d589fd60977ba0ebe85fae2093c41f0573a9869ca622d095725b9751
MD5 hash:
7ccbf2500394ee324345fd4bdc75ca4a
SHA1 hash:
2589730c2eb1ebacb74b3e376f8e6282ea16b7ec
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1adeedac-aaf4-42d6-aabb-9be6839cd0e7/
SH256 hash:
6939da898e9d34d36ae7987b3197136f750629164e41fb8acc512c3b48f31bc2
MD5 hash:
321734028777438a9f2455a1b38ce1cb
SHA1 hash:
f2d6aac266cb1a0c451b90ed0864f3f8d249199c
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
asyncrat
Create hunting rule
win_asyncrat_bytecodes
Create hunting rule
win_asyncrat_unobfuscated
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Link:
https://www.unpac.me/results/1adeedac-aaf4-42d6-aabb-9be6839cd0e7/
Parent samples :
64a189213a5ba29b7d55ab22fb3995c4c60755746764b97a9d6124a86c2e9b44
666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2
4b3c7e98f64622c68cd4d61b313b7a07523e1276eb0e66fd1187e8ef2ddec23d
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/666e0837d84a/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/666e0837d84a8a618e40f48bcf8b8c198cab4c13345d333b6b5b8d11681219d2

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_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: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)
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/41199/

Comments