MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58. 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: 15


Intelligence 15 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58
SHA3-384 hash: 7944fd6b691c95c9226cd526ac1872008a831485a82871380a3efdbb6bf9a925ce69834958f361a3ebb69feb5305859b
SHA1 hash: a6f51ca80847e9a63abadaf8901c2865a855dc7c
MD5 hash: a73a9810a3cb6a42e3dea03a84c38f93
humanhash: lake-fruit-moon-hydrogen
File name:Realtek HD Audio Universal Service.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:87'040 bytes
First seen:2024-07-10 21:42:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:e+H9bH85XCU50mayDmxIi+BJF5Pt9OYiW6BOMhP3/9n+IHZj:es+XbbaFPYFD99d6BOMdDB
TLSH T19D83F9F09FF4B9A5E02D21B37860B13C37E69D0ECC51953AD68BF54A35629C260E5A0B
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)
File icon (PE):PE icon
dhash icon 00414f4f4f4f4700 (14 x CoinMiner, 12 x RedLineStealer, 12 x NodeLoader)
Reporter Chainskilabs
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
388
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58.exe
Verdict:
Malicious activity
Analysis date:
2024-07-10 21:45:05 UTC
Tags:
evasion xworm
Link:
https://app.any.run/tasks/13777e2f-f80d-4625-a0b3-ec34cef601f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.njRAT-10002074-1
Create hunting rule

Win.Packed.Msilzilla-10019837-0
Create hunting rule

Win.Packed.Loveletter-10023052-0
Create hunting rule

Win.Dropper.Nanocore-10024427-0
Create hunting rule

Win.Packed.Msilzilla-10024501-0
Create hunting rule

Win.Packed.Loveletter-10024677-0
Create hunting rule

Win.Packed.Msilzilla-10024808-0
Create hunting rule

Win.Packed.Msilzilla-10026193-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668f006750cbfd4734a89991win7simulatehigh_evasion
Tags:
Banker Encryption Execution Stealth Dexter
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58
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:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2bb5bfab-fa07-411c-b035-2393b910b346
Result
Threat name:
AsyncRAT, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1471111
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
Connects to many ports of the same IP (likely port scanning)
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
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1471111 Sample: Realtek HD Audio Universal ... Startdate: 10/07/2024 Architecture: WINDOWS Score: 100 38 ip-api.com 2->38 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 23 other signatures 2->52 8 Realtek HD Audio Universal Service.exe 15 6 2->8         started        13 Realtek HD Audio Universal Service.exe 2->13         started        15 Realtek HD Audio Universal Service.exe 2->15         started        signatures3 process4 dnsIp5 40 ip-api.com 208.95.112.1, 49710, 80 TUT-ASUS United States 8->40 42 147.185.221.20, 49720, 64813 SALSGIVERUS United States 8->42 34 C:\...\Realtek HD Audio Universal Service.exe, PE32 8->34 dropped 54 Protects its processes via BreakOnTermination flag 8->54 56 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->56 58 Adds a directory exclusion to Windows Defender 8->58 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 powershell.exe 22 8->22         started        24 powershell.exe 8->24         started        36 Realtek HD Audio U...sal Service.exe.log, CSV 13->36 dropped file6 signatures7 process8 signatures9 44 Loading BitLocker PowerShell Module 17->44 26 conhost.exe 17->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 15:38:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
23 of 24 (95.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=flx2lzccvx3orhwxxelkb2a44maskdlvn3dvmmdx6xdei52rdzma._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Link:
https://tria.ge/reports/240710-1kwt5stfng/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
147.185.221.20:64813
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/43f554ee-c37c-481d-9473-31fd671583e8
Unpacked files
SH256 hash:
2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58
MD5 hash:
a73a9810a3cb6a42e3dea03a84c38f93
SHA1 hash:
a6f51ca80847e9a63abadaf8901c2865a855dc7c
Link:
https://www.unpac.me/results/a7fd97de-5ee1-431d-83d4-f5baa9e53225/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2aefa5e442adf6e89ed7b916a0e81ce301250d756ec7563077f5c64477511e58

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
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:EXE_RAT_XWorm_April2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
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: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:win_xworm_bytestring
Create hunting rule
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.

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

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