MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 07ecf0ee68a52e1783da654389f5adaa861b5e7cfff04cbec504e721cc3a11ad. 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: 16


Intelligence 16 IOCs YARA 14 File information Comments 1

SHA256 hash: 07ecf0ee68a52e1783da654389f5adaa861b5e7cfff04cbec504e721cc3a11ad
SHA3-384 hash: 2df63c6e16c5e535ddf4966f96004ac8f63364b4e19f512f3ffd9dcf21b36c3c2984aa1ee127e63aba1a80664bf2a33d
SHA1 hash: 5184959ba1eb9034df44fb309be3781cee9a3d83
MD5 hash: ada4045ee6399dc5733826a4d7e43a10
humanhash: alabama-alpha-fanta-fourteen
File name:ada4045ee6399dc5733826a4d7e43a10
Download: download sample
Signature AsyncRAT
File size:42'496 bytes
First seen:2024-06-28 19:45:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:1KjSON6U+0VT7OWCCKUS0BMRjJF5Pa9pmA6vOwhy3/+zc:1gStUJVTa1nFrtF49AA6vOwg2o
TLSH T167133A4437E84216E5FF5BFA25B362060771F6038D13DB9E4CD89A9B2B77B808A507D2
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 zbetcheckin
Tags:32 AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
507
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
Execution Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Creating a window
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor fingerprint hook keylogger lolbin lolbin njrat njrat rat schtasks schtasks vbnet xworm
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.
Result
Threat name:
AsyncRAT, XWorm
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Loading BitLocker PowerShell Module
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
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 AsyncRAT
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1464467 Sample: 9rb5IvX2hG.exe Startdate: 28/06/2024 Architecture: WINDOWS Score: 100 40 ip-api.com 2->40 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 14 other signatures 2->52 8 9rb5IvX2hG.exe 15 6 2->8         started        13 crss.exe 2->13         started        15 crss.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 42 ip-api.com 208.95.112.1, 49731, 80 TUT-ASUS United States 8->42 44 156.225.129.202, 49739, 49740, 49741 ONL-HK-AS19ChunWangStreetTseungKwanOIndustrialEsta Seychelles 8->44 38 C:\Users\user\AppData\Roaming\crss.exe, PE32 8->38 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->56 58 Protects its processes via BreakOnTermination flag 8->58 60 Bypasses PowerShell execution policy 8->60 68 4 other signatures 8->68 19 powershell.exe 23 8->19         started        22 powershell.exe 23 8->22         started        24 powershell.exe 22 8->24         started        26 2 other processes 8->26 62 Antivirus detection for dropped file 13->62 64 Multi AV Scanner detection for dropped file 13->64 66 Machine Learning detection for dropped file 13->66 file6 signatures7 process8 signatures9 54 Loading BitLocker PowerShell Module 19->54 28 conhost.exe 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 26->36         started        process10
Threat name:
ByteCode-MSIL.Trojan.AsyncRAT
Status:
Malicious
First seen:
2024-06-23 18:38:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
156.225.129.202:7000
Unpacked files
SH256 hash:
07ecf0ee68a52e1783da654389f5adaa861b5e7cfff04cbec504e721cc3a11ad
MD5 hash:
ada4045ee6399dc5733826a4d7e43a10
SHA1 hash:
5184959ba1eb9034df44fb309be3781cee9a3d83
Detections:
XWorm MALWARE_Win_XWorm win_mal_XWorm INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA MALWARE_Win_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:ByteCode_MSIL_Backdoor_AsyncRAT
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:EXE_RAT_XWorm_April2024
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
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:win_xworm_bytestring
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Executable exe 07ecf0ee68a52e1783da654389f5adaa861b5e7cfff04cbec504e721cc3a11ad

(this sample)

  
Delivery method
Distributed via web download

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 19:45:52 UTC

url : hxxp://154.197.69.131/XClient.exe