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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e. 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


PureCrypter


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
SHA3-384 hash: f341fa9a5716cbcfe90a30739be3935b3e63faa45bb6a50a94c6f8cf1ea0209d104d624b0b04ac8612064deba5e64e50
SHA1 hash: c6e85b6fac753506d3e0f7f0e1c2fe51d1cd94ae
MD5 hash: a43137ff2041224df9a43cb19194ca49
humanhash: johnny-mirror-fanta-leopard
File name:data.bat
Download: download sample
Signature PureCrypter
Create hunting rule
File size:205'683 bytes
First seen:2025-10-31 10:06:12 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 3072:dslestuZbWF6g9AGr24RqmiwEnX+/SylQHLAMOY13Q9ht3xPMU3DxjH6Hqj4ZoZ0:GestuFWFBhrsONQrPi9PJMUTNrjTMfau
TLSH T1FC14021511FB4B6CCDF81B887CB66D964374C1C622B996CF779BEE0925AD40948F20EC
Magika batch
Reporter smica83
Tags:bat purecrypter

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
data.bat
Verdict:
Malicious activity
Analysis date:
2025-10-31 10:09:57 UTC
Tags:
netreactor purehvnc amsi-bypass
Link:
https://app.any.run/tasks/aecf909b-540d-4c07-9e3c-f4737d40efeb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34888/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69048a3e9942f1282ecad54a
Tags:
shell overt sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a window
Running batch commands
Launching a process
Creating a process with a hidden window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a file downloaded from the Internet
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm lolbin obfuscated powershell squirrel
Link:
https://www.filescan.io/uploads/69048a5aa3d16310952366ee/reports/0f6fa2ce-da0c-4845-8260-b0c85f4d34ab/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
Verdict:
Malicious
File Type:
unix shell
First seen:
2025-10-12T02:50:00Z UTC
Last seen:
2025-11-02T08:02:00Z UTC
Hits:
~100
Detections:
BSS:Trojan.Win32.Generic.nblk BSS:Trojan.Win32.Generic Trojan.Win32.Powershell.a Trojan.Win32.Agent.sb HEUR:Trojan.BAT.Agent.gen
Link:
https://opentip.kaspersky.com/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e/results?tab=lookup
Result
Threat name:
Purecrypter
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1805674
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Bypasses PowerShell execution policy
Connects to many ports of the same IP (likely port scanning)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Powershell drops PE file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Download and Execution Cradles
Sigma detected: Powershell download payload from hardcoded c2 list
Sigma detected: Schedule system process
Sigma detected: Suspicious Command Patterns In Scheduled Task Creation
Sigma detected: Suspicious PowerShell Parameter Substring
Suspicious powershell command line found
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Purecrypter
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1805674 Sample: data.bat Startdate: 31/10/2025 Architecture: WINDOWS Score: 100 70 i.ibb.co 2->70 78 Malicious sample detected (through community Yara rule) 2->78 80 Sigma detected: Powershell download payload from hardcoded c2 list 2->80 82 Yara detected Purecrypter 2->82 84 9 other signatures 2->84 11 cmd.exe 3 2->11         started        15 L412n.exe 2->15         started        17 L412n.exe 2->17         started        19 svchost.exe 1 1 2->19         started        signatures3 process4 dnsIp5 68 C:\ProgramData\data.bat, DOS 11->68 dropped 96 Suspicious powershell command line found 11->96 98 Obfuscated command line found 11->98 100 Bypasses PowerShell execution policy 11->100 102 Uses schtasks.exe or at.exe to add and modify task schedules 11->102 22 powershell.exe 14 22 11->22         started        27 conhost.exe 11->27         started        29 powershell.exe 7 15->29         started        31 powershell.exe 17->31         started        72 127.0.0.1 unknown unknown 19->72 file6 signatures7 process8 dnsIp9 74 144.31.2.51, 56812 UAMS-ASNUS United States 22->74 76 i.ibb.co 108.181.22.211, 443, 49713, 49723 ASN852CA Canada 22->76 66 C:\ProgramData\L412n.exe, PE32+ 22->66 dropped 90 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 22->90 92 Loading BitLocker PowerShell Module 22->92 94 Powershell drops PE file 22->94 33 cmd.exe 1 22->33         started        35 cmd.exe 1 22->35         started        37 cmd.exe 1 29->37         started        40 cmd.exe 31->40         started        file10 signatures11 process12 signatures13 42 conhost.exe 33->42         started        44 schtasks.exe 1 33->44         started        46 conhost.exe 35->46         started        48 schtasks.exe 1 35->48         started        86 Suspicious powershell command line found 37->86 88 Obfuscated command line found 37->88 50 powershell.exe 37->50         started        52 powershell.exe 40->52         started        process14 process15 54 cmd.exe 50->54         started        56 cmd.exe 52->56         started        process16 58 conhost.exe 54->58         started        60 schtasks.exe 1 54->60         started        62 conhost.exe 56->62         started        64 schtasks.exe 1 56->64         started       
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e/
Verdict:
Malicious
Threat:
Trojan.Win32.PowerShell
Link:
https://tip.neiki.dev/file/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
Threat name:
Text.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-10-31 10:09:58 UTC
File Type:
Text (Batch)
AV detection:
3 of 38 (7.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wt7euozxdsf7ahlqdvppraoxbsbpbtela3gi4m5afndikofvyn7a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution persistence
Link:
https://tria.ge/reports/251031-l5rzcswpbm/
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
Executes dropped EXE
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/bat2exe/Kematian/refs/heads/main/sys.txt
https://i.ibb.co/GvG4xnyW/k4skxlh8ybig.png
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/b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/34888/

Comments