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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d. 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


njrat


Vendor detections: 15


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

SHA256 hash: 24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
SHA3-384 hash: 208c5671db2621c0375259f2c8211d3e9739789e41498c17d6a56c68506f5608e45906555e1cd6a31f75162292b9d216
SHA1 hash: af074998d2605989ce9ca949c8d38ef855018a93
MD5 hash: df39a037e099b52250fa01de2724ffc2
humanhash: robin-oregon-zebra-august
File name:24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
Download: download sample
Signature njrat
Create hunting rule
File size:36'864 bytes
First seen:2024-08-05 14:18:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'239 x AgentTesla, 20'491 x Formbook, 12'372 x SnakeKeylogger)
ssdeep 768:+1KTDu6CiPkO+1GijHvFj9O0a6LOjhlfbBv2P82:+1uu6bLojPFj9xa6LOjrFePz
TLSH T1E2F24C487B914322D5FF6FF059B3A1450678BA17DD23E66E0CD8898B2F67AC186007E3
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 adrian__luca
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
390
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
Verdict:
Malicious activity
Analysis date:
2024-08-05 14:45:04 UTC
Tags:
evasion xworm
Link:
https://app.any.run/tasks/5bc5efae-77ed-430c-a6dc-9c87f046c408

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66b0df5eb7a04efc7439fa5f
Tags:
Discovery Execution Generic Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor fingerprint njrat njrat rat vbnet
Link:
https://www.filescan.io/uploads/66b0df79e7dbbbdfcd095a5e/reports/a1fc701a-6c83-4fb5-9a1c-cd52a4387cc4/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cbdab22a-2ebb-40b4-803f-341f17b0d48a
Result
Threat name:
AsyncRAT, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1488112
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)
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
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)
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1488112 Sample: PMRpXCwamC.exe Startdate: 05/08/2024 Architecture: WINDOWS Score: 100 36 ip-api.com 2->36 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for dropped file 2->48 50 17 other signatures 2->50 8 PMRpXCwamC.exe 15 4 2->8         started        13 Relatek Xbox Audio game bar.exe 2->13         started        15 Relatek Xbox Audio game bar.exe 2->15         started        signatures3 process4 dnsIp5 38 ip-api.com 208.95.112.1, 49711, 80 TUT-ASUS United States 8->38 40 147.185.221.21, 15927, 49721, 49724 SALSGIVERUS United States 8->40 34 C:\...\Relatek Xbox Audio game bar.exe, PE32 8->34 dropped 52 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->52 54 Bypasses PowerShell execution policy 8->54 56 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->56 58 2 other signatures 8->58 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        file6 signatures7 process8 signatures9 42 Loading BitLocker PowerShell Module 17->42 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/24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-07-28 03:48:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 24 (100.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=etnerhvivhxhyksizihnijvyjp2qfkm6gobthpiuv2uuqv6r3ugq._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/240805-rmvkessdqc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
147.185.221.21:15927
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9802d47e-e833-499a-91b3-c59425416795
Unpacked files
SH256 hash:
24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d
MD5 hash:
df39a037e099b52250fa01de2724ffc2
SHA1 hash:
af074998d2605989ce9ca949c8d38ef855018a93
Link:
https://www.unpac.me/results/d3b40f0a-7429-4cc3-a703-ad5789e4f997/
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/24da489ea8a9ee7c2a48ca0ed426b84bf502a99e338333bd14aea94857d1dd0d

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

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

Comments