MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a831f56d8fdfabfa351e9afac48c22daff4268c15ec92e7be42e2be4eadf1ae0. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a831f56d8fdfabfa351e9afac48c22daff4268c15ec92e7be42e2be4eadf1ae0
SHA3-384 hash: 28043d91bdcc4c805c66749f618aaba93d2712a6b182492886b9ae420d46a36ea7d4151875282bf6ac869ad88ab1399f
SHA1 hash: e157cb2dc28dc424a42c28721bb316d400c3ed0c
MD5 hash: a8cc126306f34c186616e9301610f80d
humanhash: ack-xray-summer-skylark
File name:titanjr.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:87'696 bytes
First seen:2025-12-26 19:57:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:8l8IhK59kLMSbp37zSWAcanWCay3Txdgo2F62hpKl9:8/hU9ktbRSWnJwTxdd20l9
TLSH T17F8328C1BA4BC0F5D90748304067F33FCB32D6394061D66EEFAA9E65EE73642522629D
telfhash t19d312cfa297e0cfca7d45940935e1e623d29e77f29a076b046735834336be8150bac39
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
29
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/a5e5e8c8-6940-4af2-9b6a-6e0e979b02f3/
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999-14.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10056463-0
Create hunting rule

Unix.Trojan.Mirai-10058414-0
Create hunting rule

Unix.Trojan.Mirai-10058922-0
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade mirai
Link:
https://www.filescan.io/uploads/694ee8c53f8fdbf8e952e876/reports/26854bc5-fa7f-4acc-b6fe-a221dde62098/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1c9f4d31-2ee0-4f0f-8d9c-3f97a2c4adf9
Behavior Graph:
Download SVG
%3 guuid=79e561c2-1a00-0000-6217-bd0a110b0000 pid=2833 /usr/bin/sudo guuid=0c3e1cc4-1a00-0000-6217-bd0a170b0000 pid=2839 /tmp/sample.bin net guuid=79e561c2-1a00-0000-6217-bd0a110b0000 pid=2833->guuid=0c3e1cc4-1a00-0000-6217-bd0a170b0000 pid=2839 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=0c3e1cc4-1a00-0000-6217-bd0a170b0000 pid=2839->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=077940c4-1a00-0000-6217-bd0a180b0000 pid=2840 /tmp/sample.bin guuid=0c3e1cc4-1a00-0000-6217-bd0a170b0000 pid=2839->guuid=077940c4-1a00-0000-6217-bd0a180b0000 pid=2840 clone guuid=8d624ac4-1a00-0000-6217-bd0a1a0b0000 pid=2842 /tmp/sample.bin write-config zombie guuid=077940c4-1a00-0000-6217-bd0a180b0000 pid=2840->guuid=8d624ac4-1a00-0000-6217-bd0a1a0b0000 pid=2842 clone guuid=b5ceb5c7-1a00-0000-6217-bd0a250b0000 pid=2853 /usr/bin/dash guuid=8d624ac4-1a00-0000-6217-bd0a1a0b0000 pid=2842->guuid=b5ceb5c7-1a00-0000-6217-bd0a250b0000 pid=2853 execve guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863 /tmp/sample.bin net send-data zombie guuid=8d624ac4-1a00-0000-6217-bd0a1a0b0000 pid=2842->guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863 clone guuid=d1d1f2c7-1a00-0000-6217-bd0a270b0000 pid=2855 /usr/bin/cp guuid=b5ceb5c7-1a00-0000-6217-bd0a250b0000 pid=2853->guuid=d1d1f2c7-1a00-0000-6217-bd0a270b0000 pid=2855 execve guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 3075B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 2B guuid=c58962ca-1a00-0000-6217-bd0a300b0000 pid=2864 /tmp/sample.bin guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863->guuid=c58962ca-1a00-0000-6217-bd0a300b0000 pid=2864 clone guuid=841e68ca-1a00-0000-6217-bd0a310b0000 pid=2865 /tmp/sample.bin guuid=9a6057ca-1a00-0000-6217-bd0a2f0b0000 pid=2863->guuid=841e68ca-1a00-0000-6217-bd0a310b0000 pid=2865 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ffe78ebf-91ec-40b6-ba90-46a01034a5a1
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1840002
Signature
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1840002 Sample: titanjr.i686.elf Startdate: 26/12/2025 Architecture: LINUX Score: 68 30 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 10 titanjr.i686.elf 2->10         started        signatures3 process4 process5 12 titanjr.i686.elf 10->12         started        process6 14 titanjr.i686.elf 12->14         started        file7 28 /etc/init.d/sysd, POSIX 14->28 dropped 36 Sample tries to set files in /etc globally writable 14->36 38 Drops files in suspicious directories 14->38 40 Sample tries to persist itself using System V runlevels 14->40 18 titanjr.i686.elf sh 14->18         started        20 titanjr.i686.elf 14->20         started        signatures8 process9 process10 22 sh cp 18->22         started        24 titanjr.i686.elf 20->24         started        26 titanjr.i686.elf 20->26         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a831f56d8fdfabfa351e9afac48c22daff4268c15ec92e7be42e2be4eadf1ae0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a831f56d8fdfabfa351e9afac48c22daff4268c15ec92e7be42e2be4eadf1ae0/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-26 09:47:38 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vay7k3mp36v7uni6tl5mjdbc3l7ue2gbl3es467efyv6j2w7dlqa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery linux persistence
Link:
https://tria.ge/reports/251226-yppkhsxjam/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Malware Config
C2 Extraction:
dot.polarisnetwork.fun
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10056463-0
YARA:
n/a
Link:
https://app.threat.zone/submission/6676739d-dea6-49a2-af90-338a9fe2e51c
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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_485c4b13
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 a831f56d8fdfabfa351e9afac48c22daff4268c15ec92e7be42e2be4eadf1ae0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3744247/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3744254/

Comments