MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 523f31faceaf893dd4e00b04d351eb3ae93eca10bb1fdbaeceed91cdf4707afd. 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



Threat unknown


Vendor detections: 6


Intelligence 6 IOCs YARA 1 File information Comments

SHA256 hash: 523f31faceaf893dd4e00b04d351eb3ae93eca10bb1fdbaeceed91cdf4707afd
SHA3-384 hash: 73846611ea99db624b06d3a4d96565f0517e92c86fbdd5ff690813286ea1d15d8bd0da6a9173f256040dbd574498fd5c
SHA1 hash: f2967a5f56c490ab7e71c02fd9e4a014ade0d62f
MD5 hash: 917dcc2235a8b3d3c0f052e8c16bd7a2
humanhash: kitten-item-tennis-london
File name:k.php
Download: download sample
File size:45'533 bytes
First seen:2026-06-10 20:23:00 UTC
Last seen:Never
File type: sh
MIME type:text/x-shellscript
ssdeep 768:k4r9NyXsZztCY09GKYpr9GKYp82fkR4nnA9GKYpr9GKYp82fkR4nnx:bHusZr5co
TLSH T130136D6526953C25AE99883B5C7E2F0CBDA983E2304491DDBFCA3CF18C15A9CE718719
TrID 70.0% (.SH) Linux/UNIX shell script (7000/1)
30.0% (.) Unix-like shebang (var.3) (gen) (3000/1)
Magika shell
Reporter abuse_ch
Tags:sh

Intelligence


File Origin
# of uploads :
1
# of downloads :
62
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bash evasive lolbin masquerade obfuscated
Verdict:
Malicious
File Type:
unix shell
Detections:
HEUR:Trojan-Downloader.Shell.Agent.bc
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2026-06-10 20:23:32 UTC
File Type:
Text (Shell)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
antivm credential_access defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Deobfuscate/Decode Files or Information
Checks CPU configuration
Creates .desktop file
Modifies Bash startup script
Adds a user to the system
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Modifies rc script
File and Directory Permissions Modification
Deletes Audit logs
Deletes system logs
OS Credential Dumping
Modifies password files for system users/ groups
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:SUSP_LNX_Base64_Exec_Apr24
Author:Christian Burkard
Description:Detects suspicious base64 encoded shell commands (as seen in Palo Alto CVE-2024-3400 exploitation)
Reference:Internal Research

File information


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

Web download

sh 523f31faceaf893dd4e00b04d351eb3ae93eca10bb1fdbaeceed91cdf4707afd

(this sample)

  
Delivery method
Distributed via web download

Comments