MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4
SHA3-384 hash: 80d602dee56e6d86666d66b4727ac2ad92f1badb77d763895e430d4c85d9d6878866e94c477c7bca9143358e94ebc8ba
SHA1 hash: 1ce49e1549c9f374f2fc491918f7610210f001bb
MD5 hash: e3670391b93255c7d6ba527fc20c0448
humanhash: fifteen-black-alpha-august
File name:mipsel
Download: download sample
Signature Mirai
Create hunting rule
File size:207'720 bytes
First seen:2025-07-13 05:23:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:65F4aMyMhYOZ5P7p1teW0nACiZJmKHvkVOC5:65y5yMxP9LeXlW8KPkVz
TLSH T18614C70AAF510EFBD8AFDE3706E90B0225CC651722A93B357574C524F54B94B4AE3CB8
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
19
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30395.LC.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=687342fa900df8e7f86a5438linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Locks files
Sets a written file as executable
Kills processes
Runs as daemon
Sends data to a server
Connection attempt
Launching a process
Writes files to system directory
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
android gafgyt
Link:
https://www.filescan.io/uploads/687342f8a567bf5f14828bf1/reports/0d21dceb-be86-4aab-99b0-2a6add2c4924/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
2
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/685359b0-8731-4f47-a838-679cc2256dba
Behavior Graph:
Download SVG
%3 guuid=c944cc7c-1a00-0000-bf7b-20b6110b0000 pid=2833 /usr/bin/sudo guuid=f29d547e-1a00-0000-bf7b-20b6160b0000 pid=2838 /tmp/sample.bin guuid=c944cc7c-1a00-0000-bf7b-20b6110b0000 pid=2833->guuid=f29d547e-1a00-0000-bf7b-20b6160b0000 pid=2838 execve guuid=965e287f-1a00-0000-bf7b-20b6190b0000 pid=2841 /usr/bin/dash guuid=f29d547e-1a00-0000-bf7b-20b6160b0000 pid=2838->guuid=965e287f-1a00-0000-bf7b-20b6190b0000 pid=2841 clone
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/09c2b2ab-6c4f-4e85-b990-3da9b7d30734
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1735096
Signature
Drops files in suspicious directories
Drops invisible ELF files
Found malware configuration
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
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1735096 Sample: mipsel.elf Startdate: 13/07/2025 Architecture: LINUX Score: 88 35 87.121.84.210, 49892, 63648 SKATTV-ASBG Bulgaria 2->35 45 Found malware configuration 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected Gafgyt 2->49 51 Yara detected Mirai 2->51 10 mipsel.elf 2->10         started        signatures3 process4 signatures5 53 Sample tries to set files in /etc globally writable 10->53 55 Drops files in suspicious directories 10->55 57 Sample tries to persist itself using System V runlevels 10->57 13 mipsel.elf 10->13         started        15 mipsel.elf sh 10->15         started        process6 process7 17 mipsel.elf 13->17         started        21 sh cp 15->21         started        file8 31 /etc/init.d/sysd, POSIX 17->31 dropped 37 Sample tries to set files in /etc globally writable 17->37 39 Drops files in suspicious directories 17->39 41 Sample tries to persist itself using System V runlevels 17->41 23 mipsel.elf sh 17->23         started        25 mipsel.elf 17->25         started        43 Drops invisible ELF files 21->43 signatures9 process10 process11 27 sh cp 23->27         started        file12 33 /usr/bin/.sh, ELF 27->33 dropped 59 Drops invisible ELF files 27->59 61 Drops files in suspicious directories 27->61 signatures13
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-07-13 04:31:11 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xerxvbibujnn7blcqdvmatpc6tqgczmgmt4oyfqbtqwxtw6wnwsa._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/250713-f3r9fsxyf1/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Modifies init.d
Modifies rc script
Write file to user bin folder
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1a40ee56-4d92-4ea8-926f-2bd87c58cea9
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/b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:testlumma
Create hunting rule
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 b9237a8501a25adf856280eac04de2f4e061658664f8ec16019c2d79dbd66da4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581051/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments