MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a. 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: 10


Intelligence 10 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a
SHA3-384 hash: 6e857d656a10070285c60a7f5975e7f047d8f04a1530b2f1338050bc109ccf764f13af9eccfbe41c03c4081d921e2829
SHA1 hash: 77082d155269672a09e341e6383bc86f49567624
MD5 hash: 6c3d8c76665fd0da3b432da8e08e55a6
humanhash: nevada-failed-comet-stairway
File name:morte.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:145'596 bytes
First seen:2025-11-11 23:29:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Benqso7Rhnm5ye0u8G4AM3MN+IyItDhHkxNqrXaWFBxXZDciQeYmF+037KD5hNPA:ZsuuiPs1EXqrXaW+eYmF+6eDNbxrby
TLSH T199E33B5AE8928E11C5C712FABA6E914D33126BB4D3DF3202CE10AFA467C74DA0F77516
telfhash t17d31aa16dfb01e5c9bf88098c25db56857e431ad1b42389ac75dba0fca839c3f21d816
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 gafgyt mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 e0bf86191882649a3b163925144da7b9cdc8fbf359e20924f96807cae1e4a5de
File size (compressed) :55'788 bytes
File size (de-compressed) :145'596 bytes
Format:linux/arm
Packed file: e0bf86191882649a3b163925144da7b9cdc8fbf359e20924f96807cae1e4a5de

Intelligence

File Origin
# of uploads :
1
# of downloads :
58
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136017-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7355719-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-5607483-0
Create hunting rule

Unix.Packed.Botnet-6566031-0
Create hunting rule

Unix.Dropper.Botnet-6566040-0
Create hunting rule

Unix.Trojan.Gafgyt-6748839-0
Create hunting rule

Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-11T20:37:00Z UTC
Last seen:
2025-11-11T21:22:00Z UTC
Hits:
~10
Detections:
HEUR:Exploit.Linux.DLink.b HEUR:Exploit.Linux.DLink.a HEUR:Backdoor.Linux.Mirai.ii HEUR:Exploit.Linux.Netgear.b HEUR:Exploit.Linux.Netgear.a HEUR:Exploit.Linux.Vacron.a HEUR:Exploit.Linux.CVE-2017-17215.a HEUR:Exploit.Linux.CVE-2014-8361.a HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Exploit.Linux.Mvpower.a HEUR:Exploit.Linux.CVE-2018-10561.a HEUR:Backdoor.Linux.Gafgyt.cn HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f16a3e9e-13a2-41b1-9485-a7267438cb2f
Behavior Graph:
Download SVG
%3 guuid=a320bd21-1a00-0000-4b0f-04dcac0a0000 pid=2732 /usr/bin/sudo guuid=61e8bf24-1a00-0000-4b0f-04dcb50a0000 pid=2741 /tmp/sample.bin guuid=a320bd21-1a00-0000-4b0f-04dcac0a0000 pid=2732->guuid=61e8bf24-1a00-0000-4b0f-04dcb50a0000 pid=2741 execve
Gathering data
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1812360
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1812360 Sample: morte.arm6.elf Startdate: 12/11/2025 Architecture: LINUX Score: 100 35 daisy.ubuntu.com 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for dropped file 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 3 other signatures 2->43 9 morte.arm6.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 file5 33 /usr/local/bin/infinitd, ELF 9->33 dropped 14 morte.arm6.elf 9->14         started        16 morte.arm6.elf 9->16         started        18 morte.arm6.elf sh 9->18         started        20 morte.arm6.elf sh 9->20         started        process6 process7 22 morte.arm6.elf 14->22         started        25 morte.arm6.elf 16->25         started        27 sh 18->27         started        29 sh 20->29         started        signatures8 45 Manipulation of devices in /dev 22->45 47 Deletes system log files 22->47 31 morte.arm6.elf 25->31         started        process9
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-11-11 23:30:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56cvlmqkxtregh6k57knawa5hklng4kzzjjb3qznf5odvjpfnwna._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion persistence privilege_escalation
Link:
https://tria.ge/reports/251111-3he5qadm6z/
Behaviour
Modifies systemd
Write file to user bin folder
Deletes Audit logs
Deletes journal logs
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/ab17b479-051e-4ac4-99b6-4c4ef03a9d7f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 e0bf86191882649a3b163925144da7b9cdc8fbf359e20924f96807cae1e4a5de

Mirai

elf ef8555b20abce2431fcaefd4d0581d3a96d37159ca521dc32d2f5c3aa5e56d9a

(this sample)

  
Dropped by
SHA256 e0bf86191882649a3b163925144da7b9cdc8fbf359e20924f96807cae1e4a5de
  
URLhaus
https://urlhaus.abuse.ch/url/3697765/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 1d91f146aadeda7fef7db7973f412bab
  
URLhaus
https://urlhaus.abuse.ch/url/3697942/
  
URLhaus
https://urlhaus.abuse.ch/url/3702545/
  
URLhaus
https://urlhaus.abuse.ch/url/3702500/
  
URLhaus
https://urlhaus.abuse.ch/url/3702505/

Comments