MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 14b1d8af7272d1c0d8dc18a5342ed0186a70e6b24610ba31026cb2532b5d37c8. 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



XWorm


Vendor detections: 15


Intelligence 15 IOCs YARA 14 File information Comments

SHA256 hash: 14b1d8af7272d1c0d8dc18a5342ed0186a70e6b24610ba31026cb2532b5d37c8
SHA3-384 hash: ab3849b08f8316fa3a1c1c1579826a4161f7d811d81e284a1e6cd30900a6dbde00a3cdc204e26808d4eeaa9480905bf2
SHA1 hash: 6d8d7965cecacd0e3ffdb4257425187a766af204
MD5 hash: 6696fb86111a6134ff4155621601a0b1
humanhash: seventeen-johnny-moon-apart
File name:SolaraBootstrapper.exe
Download: download sample
Signature XWorm
File size:72'192 bytes
First seen:2024-08-17 13:52:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 1536:npwD0MwL3dtIC/5bL+obyJphc+JDu6Phdr5OalHcm14:nq0MwJ1byJ7c+fdr5Oal864
TLSH T1B1634C587BE90025F1FFAFB11DF172529636F6236913D61F14C8428B0A23A86CE517FA
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 aachum
Tags:exe xworm


Avatar
iamaachum
YouTube Video => https://www.mediafire.com/file/o2lfqk26vul090t/SolaraB.rar/file

XWorm C2: sell-motor.gl.at.ply.gg:4763

Intelligence


File Origin
# of uploads :
1
# of downloads :
423
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SolaraBootstrapper.exe
Verdict:
Suspicious activity
Analysis date:
2024-08-17 13:53:11 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Discovery Execution Generic Network Stealth Trojan
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor cmd explorer fingerprint lolbin rat schtasks schtasks vbnet
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:
Detection:
malicious
Classification:
troj.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)
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: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
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 Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494205 Sample: SolaraBootstrapper.exe Startdate: 17/08/2024 Architecture: WINDOWS Score: 100 40 sell-motor.gl.at.ply.gg 2->40 42 ip-api.com 2->42 48 Suricata IDS alerts for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 16 other signatures 2->54 8 SolaraBootstrapper.exe 15 5 2->8         started        13 winlogon.exe 2->13         started        15 winlogon.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 44 ip-api.com 208.95.112.1, 49704, 80 TUT-ASUS United States 8->44 46 sell-motor.gl.at.ply.gg 147.185.221.22, 4763, 49714, 49717 SALSGIVERUS United States 8->46 38 C:\Users\user\AppData\Roaming\winlogon.exe, PE32 8->38 dropped 58 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->58 60 Protects its processes via BreakOnTermination flag 8->60 62 Bypasses PowerShell execution policy 8->62 70 4 other signatures 8->70 19 powershell.exe 23 8->19         started        22 powershell.exe 22 8->22         started        24 powershell.exe 23 8->24         started        26 2 other processes 8->26 64 Antivirus detection for dropped file 13->64 66 Multi AV Scanner detection for dropped file 13->66 68 Machine Learning detection for dropped file 13->68 file6 signatures7 process8 signatures9 56 Loading BitLocker PowerShell Module 19->56 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.Spyware.AsyncRAT
Status:
Malicious
First seen:
2024-08-17 13:53:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
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 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:
sell-motor.gl.at.ply.gg:4763
Unpacked files
SH256 hash:
14b1d8af7272d1c0d8dc18a5342ed0186a70e6b24610ba31026cb2532b5d37c8
MD5 hash:
6696fb86111a6134ff4155621601a0b1
SHA1 hash:
6d8d7965cecacd0e3ffdb4257425187a766af204
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: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

File information


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

Web download

XWorm

Executable exe 14b1d8af7272d1c0d8dc18a5342ed0186a70e6b24610ba31026cb2532b5d37c8

(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