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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd. 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


Mirai


Vendor detections: 8


Intelligence 8 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd
SHA3-384 hash: 88e4c0eaa69d490a034518ba7e901e00be11bcc3ce79eddb2dae713c3ef7fbd0fc70c4c501a61d4342c6972b1f593213
SHA1 hash: f296f60fa3c5718d86b2639869dff1533eca1818
MD5 hash: 2fee42c3d25ca27bae8062988765ec8c
humanhash: delaware-five-potato-hamper
File name:x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:367'304 bytes
First seen:2026-09-02 17:47:28 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:VdxoKSR9FJKZj5JtwnZyEFkWRECt7Hqkf9O9Ua93O:bxdtwZy4kwECJHz9O9Ua93O
TLSH T19874094892F2E2FDE198DA305316BC1BAD3275363077724E729EE97313B665046EDB20
telfhash t1a461453018d67454b283c6017347d27ada3a1ce181ed76f85b53acf0eef5ac24da3826
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 90f6d7ca30a617d97012174b52e6a6ee31becd10b168fd46dd27c8f3cd80e556
File size (compressed) :126'140 bytes
File size (de-compressed) :367'304 bytes
Format:linux/amd64
Packed file: 90f6d7ca30a617d97012174b52e6a6ee31becd10b168fd46dd27c8f3cd80e556

Intelligence

File Origin
# of uploads :
1
# of downloads :
47
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.32144.LX.BOT.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creates or modifies symbolic links
Opens a port
Launching a process
Sets a written file as executable
Sends data to a server
Runs as daemon
Kills processes
Collects information on the CPU
Creating a file in the %temp% subdirectories
Creates directories
Connection attempt
Changes access rights for a written file
Creating a file in the %temp% directory
Manages services
DNS request
Receives data from a server
Changes the time when the file was created, accessed, or modified
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Traces processes
Writes files to system directory
Creates or modifies files to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
base64 expand lolbin
Link:
https://www.filescan.io/uploads/6a986164747afbeb2afb7d20/reports/9fe2c47b-7da6-42d1-bb97-b946c3052a69/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-09-02T16:02:00Z UTC
Last seen:
2026-09-03T20:24:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e2571f13-cb80-4f19-a0a4-ba5cb6c46f63
Behavior Graph:
Download SVG
%3 guuid=bc433e1f-1b00-0000-ebe7-5f6b4b0a0000 pid=2635 /usr/bin/sudo guuid=a7bfc822-1b00-0000-ebe7-5f6b510a0000 pid=2641 /tmp/sample.bin guuid=bc433e1f-1b00-0000-ebe7-5f6b4b0a0000 pid=2635->guuid=a7bfc822-1b00-0000-ebe7-5f6b510a0000 pid=2641 execve guuid=b2fea123-1b00-0000-ebe7-5f6b520a0000 pid=2642 /tmp/sample.bin net write-file zombie guuid=a7bfc822-1b00-0000-ebe7-5f6b510a0000 pid=2641->guuid=b2fea123-1b00-0000-ebe7-5f6b520a0000 pid=2642 clone 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=b2fea123-1b00-0000-ebe7-5f6b520a0000 pid=2642->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644 /tmp/sample.bin net send-data write-config write-file guuid=b2fea123-1b00-0000-ebe7-5f6b520a0000 pid=2642->guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644 clone guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 4262a40a-2823-5343-b05a-0e17b24ed3b9 94.154.43.69:6767 guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->4262a40a-2823-5343-b05a-0e17b24ed3b9 send: 600B a7eef23b-3bd8-5389-bd5c-62af93207a18 127.0.0.1:9 guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->a7eef23b-3bd8-5389-bd5c-62af93207a18 send: 4188160B guuid=eedba226-1b00-0000-ebe7-5f6b550a0000 pid=2645 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=eedba226-1b00-0000-ebe7-5f6b550a0000 pid=2645 clone guuid=2e15a926-1b00-0000-ebe7-5f6b560a0000 pid=2646 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=2e15a926-1b00-0000-ebe7-5f6b560a0000 pid=2646 clone guuid=82a7f10e-1c00-0000-ebe7-5f6b5c0b0000 pid=2908 /usr/bin/systemctl guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=82a7f10e-1c00-0000-ebe7-5f6b5c0b0000 pid=2908 execve guuid=a914974a-1c00-0000-ebe7-5f6bdd0b0000 pid=3037 /usr/bin/systemctl guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=a914974a-1c00-0000-ebe7-5f6bdd0b0000 pid=3037 execve guuid=1161be8e-1c00-0000-ebe7-5f6b0e0c0000 pid=3086 /usr/bin/systemctl guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=1161be8e-1c00-0000-ebe7-5f6b0e0c0000 pid=3086 execve guuid=18b687ca-1c00-0000-ebe7-5f6b430c0000 pid=3139 /usr/bin/systemctl guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=18b687ca-1c00-0000-ebe7-5f6b430c0000 pid=3139 execve guuid=f9f89406-1d00-0000-ebe7-5f6b920c0000 pid=3218 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=f9f89406-1d00-0000-ebe7-5f6b920c0000 pid=3218 clone guuid=494e3f42-1d00-0000-ebe7-5f6bd00c0000 pid=3280 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=494e3f42-1d00-0000-ebe7-5f6bd00c0000 pid=3280 clone guuid=2898fe7d-1d00-0000-ebe7-5f6b150d0000 pid=3349 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=2898fe7d-1d00-0000-ebe7-5f6b150d0000 pid=3349 clone guuid=4dc6abb9-1d00-0000-ebe7-5f6b450d0000 pid=3397 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=4dc6abb9-1d00-0000-ebe7-5f6b450d0000 pid=3397 clone guuid=37b155f5-1d00-0000-ebe7-5f6b960d0000 pid=3478 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=37b155f5-1d00-0000-ebe7-5f6b960d0000 pid=3478 clone guuid=4103fb30-1e00-0000-ebe7-5f6bff0d0000 pid=3583 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=4103fb30-1e00-0000-ebe7-5f6bff0d0000 pid=3583 clone guuid=a54a1b31-1e00-0000-ebe7-5f6b000e0000 pid=3584 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=a54a1b31-1e00-0000-ebe7-5f6b000e0000 pid=3584 clone guuid=10eca874-1e00-0000-ebe7-5f6baa0e0000 pid=3754 /etc/init.d/network-dispatch guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=10eca874-1e00-0000-ebe7-5f6baa0e0000 pid=3754 execve guuid=7221cfb5-1e00-0000-ebe7-5f6b2e0f0000 pid=3886 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=7221cfb5-1e00-0000-ebe7-5f6b2e0f0000 pid=3886 clone guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=4020 /tmp/sample.bin send-data guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=4020 clone guuid=8aa776f2-1e00-0000-ebe7-5f6bb50f0000 pid=4021 /tmp/sample.bin guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=2644->guuid=8aa776f2-1e00-0000-ebe7-5f6bb50f0000 pid=4021 clone 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=3e298326-1b00-0000-ebe7-5f6b540a0000 pid=4020->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 360B
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/389a6159-4b07-4df8-9ec4-580b29011201
Result
Threat name:
DirtyFrag, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1967584
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Attempts to enable/disable Ctrl-Alt-Delete system rebooting
Drops files in suspicious directories
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Uses TOR for connection hidding
Writes identical ELF files to multiple locations
Yara detected DirtyFrag
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1967584 Sample: x86_64.elf Startdate: 02/09/2026 Architecture: LINUX Score: 100 34 control.tor2web-relay-fast.onion 2->34 36 sync.softwaremirror.workers.dev 2->36 38 6 other IPs or domains 2->38 40 Antivirus detection for dropped file 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 Multi AV Scanner detection for submitted file 2->44 48 2 other signatures 2->48 9 x86_64.elf 2->9         started        signatures3 46 Uses TOR for connection hidding 34->46 process4 process5 11 x86_64.elf 9->11         started        signatures6 50 Attempts to enable/disable Ctrl-Alt-Delete system rebooting 11->50 14 x86_64.elf 11->14         started        process7 file8 26 /var/www/html/.network-dispatch, ELF 14->26 dropped 28 /var/www/.network-dispatch, ELF 14->28 dropped 30 /var/tmp/.network-dispatch, ELF 14->30 dropped 32 18 other malicious files 14->32 dropped 52 Sample tries to set files in /etc globally writable 14->52 54 Writes identical ELF files to multiple locations 14->54 56 Drops invisible ELF files 14->56 58 2 other signatures 14->58 18 x86_64.elf systemctl 14->18         started        20 x86_64.elf systemctl 14->20         started        22 x86_64.elf systemctl 14->22         started        24 13 other processes 14->24 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd/
Threat name:
Linux.Exploit.DirtyFrag
Create hunting rule
Status:
Malicious
First seen:
2026-09-02 17:36:11 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6fja3az72zhlxvto2adfljgfdxtat5gmkwisvc4b4tip6jdtrdgq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260902-wdlclsbr2y/
Behaviour
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Creates a desktop entry file
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Modifies init.d
Modifies rc script
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Traces itself
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:EXPL_HKTL_LNX_DirtyFragShellcode_May26
Create hunting rule
Author:Pezier Pierre-Henri (Nextron Systems)
Description:Detects a shellcode observed in dirtyfrag, a local privilege escalation exploit for Linux.
Reference:https://github.com/V4bel/dirtyfrag/tree/master
Rule name:EXPL_LNX_DirtyFrag_ForensicArtefacts_May26
Create hunting rule
Author:Florian Roth
Description:Detects DirtyFrag exploit code POC usage in Linux environments
Reference:https://github.com/V4bel/dirtyfrag/tree/master
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf 90f6d7ca30a617d97012174b52e6a6ee31becd10b168fd46dd27c8f3cd80e556

Mirai

elf f1520d833fd64ebbd66ed00655a4c51de609f4cc55912a8b81e4d0ff247388cd

(this sample)

  
Dropped by
SHA256 90f6d7ca30a617d97012174b52e6a6ee31becd10b168fd46dd27c8f3cd80e556
  
URLhaus
https://urlhaus.abuse.ch/url/3911508/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3911498/
  
URLhaus
https://urlhaus.abuse.ch/url/3911513/
  
Dropped by
MD5 883fff6d4d0cca7db107769c8c35fb92

Comments