MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20
SHA3-384 hash: 2432e01ee02e1787f8fca3cea39c4e31a487937aada425848413808babab387ba77975ec67ad9f199b28153c80132450
SHA1 hash: d3539381c8d2aa99172a0a4f0d90c913e6d51d60
MD5 hash: ab895960f7f94f73fd1dcb7843ee103f
humanhash: sixteen-winter-mango-east
File name:arm.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:185'888 bytes
First seen:2026-01-01 13:25:00 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:9THa/a15IWED6TyrBprXdbKjK2sP5EpoE42y8+o2RjmU:dHZzJEeTyrBRdGK2sREpob2y8+TRN
TLSH T12E044A56BD92DE23C6C521B7FB6E82CD731713B8C3E73202CD255F21668A86A0E7B541
telfhash t16431f4409d4819487bd295e849fe7627496d31b87b2138064f6aee2f7e53cc07511c3f
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 :
65
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010119-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 expand fingerprint lolbin mirai rust
Link:
https://www.filescan.io/uploads/695675bc8d1aa9829e287956/reports/c98bc342-5df0-4d93-aaa0-e719a5831aab/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-01T10:29:00Z UTC
Last seen:
2026-01-01T10:42:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3a8579a0-2755-402b-a649-51c6e05315ba
Behavior Graph:
Download SVG
%3 guuid=ce5ec1e5-1600-0000-1765-1e4f940d0000 pid=3476 /usr/bin/sudo guuid=ef17cee7-1600-0000-1765-1e4f9e0d0000 pid=3486 /tmp/sample.bin guuid=ce5ec1e5-1600-0000-1765-1e4f940d0000 pid=3476->guuid=ef17cee7-1600-0000-1765-1e4f9e0d0000 pid=3486 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f65e7873-19d0-4d38-8a79-772484c9d005
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1843124
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample pipes script to sh (AV evasion)
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Terminates several processes with shell command 'killall'
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1843124 Sample: arm.uhavenobotsxd.elf Startdate: 01/01/2026 Architecture: LINUX Score: 100 106 94.154.35.153, 33888, 6969 SELECTELRU Ukraine 2->106 108 api.ipify.org 104.26.13.205, 57396, 80 CLOUDFLARENETUS United States 2->108 110 172.67.74.152, 53618, 80 CLOUDFLARENETUS United States 2->110 126 Multi AV Scanner detection for submitted file 2->126 128 Sample pipes script to sh (AV evasion) 2->128 11 arm.uhavenobotsxd.elf 2->11         started        14 udisksd dumpe2fs 2->14         started        16 udisksd dumpe2fs 2->16         started        18 3 other processes 2->18 signatures3 process4 signatures5 140 Sample tries to kill multiple processes (SIGKILL) 11->140 142 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->142 20 arm.uhavenobotsxd.elf 11->20         started        process6 file7 98 /var/tmp/.monitor, POSIX 20->98 dropped 100 /var/spool/cron/root, ASCII 20->100 dropped 102 /var/spool/cron/crontabs/root, ASCII 20->102 dropped 104 11 other malicious files 20->104 dropped 130 Sample tries to set files in /etc globally writable 20->130 132 Sample tries to persist itself using /etc/profile 20->132 134 Drops files in suspicious directories 20->134 136 3 other signatures 20->136 24 arm.uhavenobotsxd.elf sh 20->24         started        26 arm.uhavenobotsxd.elf sh 20->26         started        28 arm.uhavenobotsxd.elf sh 20->28         started        30 21 other processes 20->30 signatures8 process9 signatures10 33 sh cp 24->33         started        37 sh .monitor 26->37         started        39 sh crontab 28->39         started        41 sh 28->41         started        144 Sample tries to kill a massive number of system processes 30->144 146 Sample tries to kill multiple processes (SIGKILL) 30->146 43 sh S99backup0 30->43         started        45 sh S99backup1 30->45         started        47 sh S99backup2 30->47         started        49 19 other processes 30->49 process11 file12 88 /usr/bin/.update, ELF 33->88 dropped 112 Writes identical ELF files to multiple locations 33->112 114 Drops invisible ELF files 33->114 116 Drops files in suspicious directories 33->116 51 .monitor 37->51         started        90 /var/spool/cron/crontabs/tmp.mTBb1E, ASCII 39->90 dropped 118 Sample tries to persist itself using cron 39->118 120 Executes the "crontab" command typically for achieving persistence 39->120 53 sh crontab 41->53         started        56 S99backup0 43->56         started        58 S99backup1 45->58         started        60 S99backup2 47->60         started        92 /var/log/.update, ELF 49->92 dropped 94 /var/.update, ELF 49->94 dropped 96 /mnt/.update, ELF 49->96 dropped 122 Sample deletes itself 49->122 124 Terminates several processes with shell command 'killall' 49->124 62 S99network 49->62         started        64 sh .update 49->64         started        66 sh .update 49->66         started        68 sh .update 49->68         started        signatures13 process14 signatures15 78 46 other processes 51->78 138 Executes the "crontab" command typically for achieving persistence 53->138 70 S99backup0 .update 56->70         started        80 33 other processes 56->80 72 S99backup1 .update 58->72         started        82 29 other processes 58->82 74 S99backup2 .update 60->74         started        84 27 other processes 60->84 76 S99network .update 62->76         started        86 25 other processes 62->86 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-01 13:25:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fn4l3opzw7frw6ge46firegc7ta4qvmdsfms3ocks6ymbv3mbyqa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260101-qn7qpsyjax/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c08f6c23-17e2-4418-8374-184b12390170
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/2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20

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: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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Generic_Threat_d94e1020
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 2b78bdb9f9b7cb1b78c4e78a8890c2fcc1c8558391592db84a97b0c0d76c0e20

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686382/
  
Delivery method
Distributed via web download

Comments