MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e. 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


Formbook


Vendor detections: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e
SHA3-384 hash: 6b3eac256697b455b215519d41723eb9df163ba5bc4789652d22418f53fbd395b7aa8707b9775c77d5e704fd11f9be56
SHA1 hash: 6e0470f78a958153b513301505ff9379a2a625a0
MD5 hash: 54c448c9e570016b04f3f297447b3504
humanhash: april-mike-december-johnny
File name:ntoskrnl.bat
Download: download sample
Signature Formbook
Create hunting rule
File size:338'532 bytes
First seen:2024-05-28 08:27:11 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 6144:qjP2m4Zg7LMk5EB11YdkawH8vlP+JamAtdQbCEk+ajFbkDUJEc+cEPMPonbK0v/b:qSm6g7LL6L/1HklP+szy+Fbkk5xwMAn7
TLSH T1DD74DF0F0FDA3818E2D84724017586B7DFA936EF028795BBA8D19626F34D90BEC27475
Reporter petrovic
Tags:bat FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ntoskrnl.bat
Verdict:
Malicious activity
Analysis date:
2024-05-27 18:03:23 UTC
Tags:
evasion xworm
Link:
https://app.any.run/tasks/926c0eb4-ff93-408d-ae04-6c3c7d22bb6b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/665595964d56d7d16288b23a/reports/8a01e652-dae5-4ce7-a0ae-7a4e426e2adf/overview
Verdict:
Suspicious
Labled as:
TrojanDropper/BAT.Agent
Link:
https://www.hybrid-analysis.com/sample/44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e
Result
Verdict:
MALICIOUS
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1448441
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Loading BitLocker PowerShell Module
Sigma detected: HackTool - CrackMapExec PowerShell Obfuscation
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1448441 Sample: ntoskrnl.bat Startdate: 28/05/2024 Architecture: WINDOWS Score: 100 46 ip-api.com 2->46 54 Antivirus detection for URL or domain 2->54 56 Antivirus detection for dropped file 2->56 58 Yara detected XWorm 2->58 60 11 other signatures 2->60 11 cmd.exe 1 2->11         started        14 wscript.exe 1 2->14         started        signatures3 process4 signatures5 66 Suspicious powershell command line found 11->66 68 Wscript starts Powershell (via cmd or directly) 11->68 70 Bypasses PowerShell execution policy 11->70 16 powershell.exe 3 19 11->16         started        20 conhost.exe 11->20         started        72 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->72 74 Suspicious execution chain found 14->74 process6 file7 40 C:\Users\user\AppData\...\startup_str_805.vbs, ASCII 16->40 dropped 42 C:\Users\user\AppData\...\startup_str_805.bat, DOS 16->42 dropped 48 Suspicious powershell command line found 16->48 50 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 16->50 22 wscript.exe 1 16->22         started        25 powershell.exe 36 16->25         started        signatures8 process9 signatures10 62 Wscript starts Powershell (via cmd or directly) 22->62 27 cmd.exe 1 22->27         started        64 Loading BitLocker PowerShell Module 25->64 30 conhost.exe 25->30         started        process11 signatures12 76 Suspicious powershell command line found 27->76 78 Wscript starts Powershell (via cmd or directly) 27->78 32 powershell.exe 14 15 27->32         started        36 conhost.exe 27->36         started        process13 dnsIp14 44 ip-api.com 208.95.112.1, 49724, 80 TUT-ASUS United States 32->44 52 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 32->52 38 WerFault.exe 23 16 32->38         started        signatures15 process16
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=is5kcigdfyv35a6zygy7rmwme2pb4ggfh36qrjsix4diztxtcu7a._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution persistence
Link:
https://tria.ge/reports/240528-kczytsce8x/
Behaviour
Creates scheduled task(s)
Modifies registry class
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
Executes dropped EXE
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
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/44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Comments