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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8. 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: 9


Intelligence 9 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8
SHA3-384 hash: c50a0bf2026303ecf51d66de86de2b2a8a5378f9cf52bb651c59c02fe997aaa2e50daf1c1643729a0a82ff1f40289f9b
SHA1 hash: 88991838f0c4027975dc37d089c8125f9fdcd64e
MD5 hash: 2effec4dd43215460ea593a8ad7139c2
humanhash: johnny-maine-twenty-quiet
File name:arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:429'756 bytes
First seen:2026-10-10 03:27:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:cz0AbHuxUUE9UxLi2A/ByZ6u1HHbhPyXX+ClQIoI/zwn3rjGe3If31Ja9Tzl9m:fxUfUti2A/BywH+e+frjzwa9Tz
TLSH T1B2941A88E1E0E7DAD2D4EA75B31D794D3B230735B0D73146E51DAA3223EB1890ABED11
telfhash t131f097049c4c37e8e74500910abe8136e98e1e0aae36bcf58280b59e0926e1368f2800
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-44.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-10-10T00:49:00Z UTC
Last seen:
2026-10-11T19:19:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e0ff95d6-fbdf-4fd0-98c5-274da2b6f97a
Behavior Graph:
Download SVG
%3 guuid=92761a11-1c00-0000-7203-8189060b0000 pid=2822 /usr/bin/sudo guuid=b4adc013-1c00-0000-7203-81890b0b0000 pid=2827 /tmp/sample.bin guuid=92761a11-1c00-0000-7203-8189060b0000 pid=2822->guuid=b4adc013-1c00-0000-7203-81890b0b0000 pid=2827 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f04641cc-4efb-4e20-ba74-7d98eca89dd1
Result
Threat name:
DirtyFrag, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1985221
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 known network protocols on non-standard ports
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: 1985221 Sample: arm7.elf Startdate: 10/10/2026 Architecture: LINUX Score: 100 37 control.tor2web-relay-fast.onion 2->37 39 sync.softwaremirror.workers.dev 2->39 41 13 other IPs or domains 2->41 51 Antivirus detection for dropped file 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 Multi AV Scanner detection for submitted file 2->55 59 3 other signatures 2->59 10 arm7.elf 2->10         started        signatures3 57 Uses TOR for connection hidding 37->57 process4 process5 12 arm7.elf 10->12         started        signatures6 61 Attempts to enable/disable Ctrl-Alt-Delete system rebooting 12->61 15 arm7.elf 12->15         started        process7 file8 29 /var/tmp/.network-dispatch, ELF 15->29 dropped 31 /var/spool/.network-dispatch, ELF 15->31 dropped 33 /var/opt/.network-dispatch, ELF 15->33 dropped 35 15 other malicious files 15->35 dropped 43 Sample tries to set files in /etc globally writable 15->43 45 Writes identical ELF files to multiple locations 15->45 47 Drops invisible ELF files 15->47 49 2 other signatures 15->49 19 arm7.elf systemctl 15->19         started        21 arm7.elf systemctl 15->21         started        23 arm7.elf systemctl 15->23         started        25 12 other processes 15->25 signatures9 process10 process11 27 arm7.elf 25->27         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8/
Threat name:
Linux.Exploit.DirtyFrag
Create hunting rule
Status:
Malicious
First seen:
2026-10-10 03:28:38 UTC
File Type:
ELF32 Little (SO)
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h6t6e5cc6mupyp27sbn4lpyuirrgzp3nyavp2ke3xstygiapipma._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai antivm botnet defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/261010-d1keqafx5q/
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
Reads system network configuration
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates active TCP sockets
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
Unexpected DNS network traffic destination
Detects Mirai
Family: Mirai
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: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:Detect_all_IPv6_variants
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Author:Bierchermuesli
Description:Generic IPv6 catcher
Rule name:elf_arm_mips_ko_so
Create hunting rule
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Packer_Dropper_Fileless_Armhf
Create hunting rule
Author:Serhii Kocherhan
Description:Detects obfuscated Linux ELF packers/droppers featuring ChaCha20/RC4 decryption, memfd_create/execveat fileless execution capabilities, and unique binary artifacts.
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_Exploit_CVE_2018_10562_badc0676
Create hunting rule
Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:Linux_Exploit_CVE_2021_46422_69af1b79
Create hunting rule
Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:MIRAI_OHSHIT_payload
Create hunting rule
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:NSVPS_Hydra_SSH_Bruteforce
Create hunting rule
Author:sanad (NSVPS-SOC)
Description:Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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 3fa7e27442f328fc3f5f905bc5bf1444626cbf6dc02afd289bbca783200f43d8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3947285/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3947497/

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