MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759. 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: 18


Intelligence 18 IOCs YARA 22 File information Comments
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SHA256 hash: 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA3-384 hash: cc5ba0fdcdf2c50f5c6f90e2b877d5be1681dfe2e029ffcd28afa883bc90ba7012fca6e4a4ec1d6f0b220fdf4c6ac2df
SHA1 hash: acf20f6a7dc7841ae06f801b887289fdc99e0488
MD5 hash: c1ade258f05c512e98ebc4d9d1165f8a
humanhash: fourteen-edward-victor-king
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:64'512 bytes
First seen:2024-03-28 17:53:20 UTC
Last seen:2024-03-28 17:56:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx
TLSH T14353F8013BE9812AF3BE8F7459F7618546FAF4AB2D12C54D0C8914CF0632B869941BFB
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Bitsight
Tags:AsyncRAT exe


Avatar
Bitsight
url: http://94.156.69.11/start.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
427
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
a7adeed2290a6e7d4b061a44337ebbcdc91a9800e40cc96a31632e3e52d710ff.exe
Verdict:
Malicious activity
Analysis date:
2024-03-28 17:11:49 UTC
Tags:
asyncrat rat remote
Link:
https://app.any.run/tasks/ac9d4686-042a-4d0a-b873-3cb22021e750

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
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
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat cmd config-extracted hook keylogger lolbin phishing reg schtasks
Link:
https://www.filescan.io/uploads/6605aec01c5277edcec36a21/reports/b73e83ef-8a58-4cf5-a27d-cd9d925bf361/overview
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Link:
https://www.hybrid-analysis.com/sample/447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
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.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e813c6bf-a8d6-4fc5-a210-88f8b8f218ad
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1417198
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1417198 Sample: file.exe Startdate: 28/03/2024 Architecture: WINDOWS Score: 100 32 leetboy.dynuddns.net 2->32 36 Snort IDS alert for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 44 10 other signatures 2->44 8 svchos.exe 2 2->8         started        12 file.exe 7 2->12         started        signatures3 42 Uses dynamic DNS services 32->42 process4 dnsIp5 34 leetboy.dynuddns.net 185.196.11.223, 1339, 49729 SIMPLECARRIERCH Switzerland 8->34 46 Antivirus detection for dropped file 8->46 48 Multi AV Scanner detection for dropped file 8->48 50 Machine Learning detection for dropped file 8->50 30 C:\Users\user\AppData\Roaming\svchos.exe, PE32 12->30 dropped 15 cmd.exe 1 12->15         started        18 cmd.exe 1 12->18         started        file6 signatures7 process8 signatures9 52 Uses schtasks.exe or at.exe to add and modify task schedules 15->52 20 conhost.exe 15->20         started        22 schtasks.exe 1 15->22         started        24 svchos.exe 3 18->24         started        26 conhost.exe 18->26         started        28 timeout.exe 1 18->28         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-03-28 04:10:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ir7k4uvldf4uavexqzwhfx36ybydbbnnnfdkwajh6yjlcumpq5mq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:exodus_market rat spyware stealer
Link:
https://tria.ge/reports/240328-wgv18adb84/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
leetboy.dynuddns.net:1339
Unpacked files
SH256 hash:
447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
MD5 hash:
c1ade258f05c512e98ebc4d9d1165f8a
SHA1 hash:
acf20f6a7dc7841ae06f801b887289fdc99e0488
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
asyncrat
Create hunting rule
Link:
https://www.unpac.me/results/25fe8840-eac6-4439-94c1-7f657f923e33/
Parent samples :
5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f
447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/447eae52ab19/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/447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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: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_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.

Web download

AsyncRAT

Executable exe 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2795009/

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 (GUARD_CF)high

Comments