MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548. 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: 14


Intelligence 14 IOCs YARA 22 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548
SHA3-384 hash: 0c1ac21e867183e65c73d8348515e413a337c74f0059f96698e5c25a32d93f08f8819314ae2c19ee0b945ee5d878b2b5
SHA1 hash: 1eb5fb487ea7742ff1766ca5bf1b7191cfcf6283
MD5 hash: 6d13d147a209e3be044035f0c03b7bde
humanhash: don-hotel-fanta-wolfram
File name:6d13d147a209e3be044035f0c03b7bde
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:48'640 bytes
First seen:2024-06-28 09:17:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:IuyxNTAoZjRWUJd9bmo2qL2TJ4+3Qk8sna9lzPIaj9vtqb5HTKsvWy0oKCnX5Eev:IuyxNTAGL2Mk839lcaj9vIbJWsZoWFnt
TLSH T1BC233D003BE98227F27E4F78ADF22245857AF6673602D64D2CC4519B5B13FC296426FE
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
503
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667e800317db6c2841b20b04win10vpnfull_triage
Tags:
Execution Network Stealth Trojan Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Launching the process to change network settings
Unauthorized injection to a recently created process
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat config-extracted fareit lolbin njrat razy reg samas schtasks vbnet
Link:
https://www.filescan.io/uploads/667e7fcb6b8dba248b469c27/reports/aa6e4263-9942-483c-bf8c-7f57dbc5ebba/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2515d415-593b-46f8-91e1-ea77d9a8b458
Result
Threat name:
AsyncRAT, PureLog Stealer, StormKitty, W
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1464066
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Bypasses PowerShell execution policy
Connects to a pastebin service (likely for C&C)
Drops PE files with benign system names
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected WorldWind Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1464066 Sample: zrrHgsDzgS.exe Startdate: 28/06/2024 Architecture: WINDOWS Score: 100 95 pastebin.com 2->95 97 api.telegram.org 2->97 99 4 other IPs or domains 2->99 123 Snort IDS alert for network traffic 2->123 125 Multi AV Scanner detection for domain / URL 2->125 127 Found malware configuration 2->127 133 23 other signatures 2->133 11 svchost.exe 1 5 2->11         started        16 zrrHgsDzgS.exe 7 2->16         started        signatures3 129 Connects to a pastebin service (likely for C&C) 95->129 131 Uses the Telegram API (likely for C&C communication) 97->131 process4 dnsIp5 101 94.232.249.111, 49739, 49740, 64789 INT-PDN-STE-ASSTEPDNInternalASSY Syrian Arab Republic 11->101 103 127.0.0.1 unknown unknown 11->103 79 C:\Users\user\AppData\Local\Temp\udwnme.exe, PE32 11->79 dropped 81 C:\Users\user\AppData\Local\Temp\luglzv.exe, PE32 11->81 dropped 137 System process connects to network (likely due to code injection or exploit) 11->137 139 Multi AV Scanner detection for dropped file 11->139 141 Found many strings related to Crypto-Wallets (likely being stolen) 11->141 18 cmd.exe 11->18         started        21 cmd.exe 1 11->21         started        83 C:\Users\user\AppData\Roaming\svchost.exe, PE32 16->83 dropped 85 C:\Users\user\AppData\...\zrrHgsDzgS.exe.log, ASCII 16->85 dropped 143 Drops PE files with benign system names 16->143 23 cmd.exe 1 16->23         started        25 cmd.exe 1 16->25         started        file6 signatures7 process8 signatures9 113 Suspicious powershell command line found 18->113 27 powershell.exe 18->27         started        29 conhost.exe 18->29         started        31 powershell.exe 12 21->31         started        33 conhost.exe 21->33         started        115 Bypasses PowerShell execution policy 23->115 117 Uses schtasks.exe or at.exe to add and modify task schedules 23->117 119 Uses netsh to modify the Windows network and firewall settings 23->119 121 Tries to harvest and steal WLAN passwords 23->121 35 conhost.exe 23->35         started        37 schtasks.exe 1 23->37         started        39 svchost.exe 3 25->39         started        41 conhost.exe 25->41         started        43 timeout.exe 1 25->43         started        process10 process11 45 luglzv.exe 27->45         started        50 udwnme.exe 14 150 31->50         started        dnsIp12 105 pastebin.com 104.20.4.235, 443, 64801 CLOUDFLARENETUS United States 45->105 87 C:\Users\user\AppData\...87WTVCDUMOB.jpg, ASCII 45->87 dropped 89 C:\Users\user\AppData\...\KATAXZVCPS.xlsx, ASCII 45->89 dropped 91 C:\Users\user\AppData\...\UMMBDNEQBN.pdf, ASCII 45->91 dropped 93 2 other malicious files 45->93 dropped 145 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 45->145 147 Tries to harvest and steal browser information (history, passwords, etc) 45->147 149 Tries to harvest and steal WLAN passwords 45->149 151 Modifies existing user documents (likely ransomware behavior) 45->151 52 cmd.exe 45->52         started        55 cmd.exe 45->55         started        107 api.telegram.org 149.154.167.220, 443, 64791, 64792 TELEGRAMRU United Kingdom 50->107 109 icanhazip.com 104.16.184.241, 64788, 64795, 80 CLOUDFLARENETUS United States 50->109 111 api.mylnikov.org 104.21.44.66, 443, 64790, 64796 CLOUDFLARENETUS United States 50->111 153 Multi AV Scanner detection for dropped file 50->153 155 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 50->155 57 cmd.exe 50->57         started        59 cmd.exe 50->59         started        file13 signatures14 process15 signatures16 75 4 other processes 52->75 77 3 other processes 55->77 135 Tries to harvest and steal WLAN passwords 57->135 61 conhost.exe 57->61         started        63 chcp.com 57->63         started        65 netsh.exe 57->65         started        67 findstr.exe 57->67         started        69 conhost.exe 59->69         started        71 chcp.com 59->71         started        73 netsh.exe 59->73         started        process17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-06-25 04:29:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=trcxwhgqmgxjkh5626cbcsnsi7qilpx2nywfc4afrtrvzxv44vea._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
stormkitty
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:stormkitty botnet:default execution persistence privilege_escalation rat spyware stealer
Link:
https://tria.ge/reports/240628-k9lgps1hke/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies data under HKEY_USERS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Command and Scripting Interpreter: PowerShell
Drops desktop.ini file(s)
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
94.232.249.111:6606
94.232.249.111:7707
94.232.249.111:8808
https://api.telegram.org/bot7379351260:AAGqtKlpHd72GFMRON17QY1OA6l1sR7mBik/sendMessage?chat_id=5795480469
https://api.telegram.org/bot6766280506:AAHjuzaB1sSnpQb9lxJpGx01sFybzgTuJ7U/sendMessage?chat_id=5795480469
Unpacked files
SH256 hash:
9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548
MD5 hash:
6d13d147a209e3be044035f0c03b7bde
SHA1 hash:
1eb5fb487ea7742ff1766ca5bf1b7191cfcf6283
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
asyncrat
Create hunting rule
Link:
https://www.unpac.me/results/561a822d-ab73-4e01-861c-7facb24412f2/
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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: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: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: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_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.

Web download

AsyncRAT

Executable exe 9c457b1cd061ae951fbed7841149b247e085befa6e2c5170058ce35cdebce548

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2910481/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments


Avatar
zbet commented on 2024-06-28 09:17:53 UTC

url : hxxp://lsrael.today/svchost.exe