MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd. 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: 57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd
SHA3-384 hash: a69b5facd0fc97f89e7aa25ff10837ea7769b81ab175f66286bc8da549963be2636fc61643c793af18c57c3f433ed98b
SHA1 hash: adc14bc38de2b78687be79d3e7ba2f44c1214ee8
MD5 hash: 4957eb8e6519c70ee111523d38ecf5dd
humanhash: queen-jupiter-connecticut-violet
File name:x86_64.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:165'904 bytes
First seen:2026-01-02 12:21:41 UTC
Last seen:2026-01-03 03:42:52 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:VvI9TJe5jq/cJq/KbfARr/2s2v9zbhhlQLwKijeU14UE3+OqZPb9wDoAo:VvIyjb4Rr/J0RCLwKk14UEOOqNse
TLSH T15FF36C16F78080FFD889C27C42EEB636E971B82D2235B25E5BD4EF153D98E21362D644
telfhash t14c417a741c91345ca1efc797b21ef52efd6214405ae974309f9b79a6fe437880c56812
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 :
2
# of downloads :
63
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

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

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

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
base64 fingerprint mirai
Link:
https://www.filescan.io/uploads/6957b876127d6a14e0cc7f0e/reports/1e68ca20-7d10-4be6-be0f-d32f95701f30/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-02T11:47:00Z UTC
Last seen:
2026-01-02T23:55:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c6011e5a-cb33-489f-8c4b-5b7ac82550be
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1843570
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
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 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 signatures2 2 Behavior Graph ID: 1843570 Sample: x86_64.uhavenobotsxd.elf Startdate: 02/01/2026 Architecture: LINUX Score: 100 90 Malicious sample detected (through community Yara rule) 2->90 92 Multi AV Scanner detection for submitted file 2->92 94 Sample pipes script to sh (AV evasion) 2->94 10 x86_64.uhavenobotsxd.elf 2->10         started        process3 signatures4 112 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->112 13 x86_64.uhavenobotsxd.elf 10->13         started        process5 file6 82 /var/tmp/.monitor, POSIX 13->82 dropped 84 /var/spool/cron/root, ASCII 13->84 dropped 86 /var/spool/cron/crontabs/root, ASCII 13->86 dropped 88 11 other malicious files 13->88 dropped 114 Sample tries to set files in /etc globally writable 13->114 116 Sample tries to persist itself using /etc/profile 13->116 118 Drops files in suspicious directories 13->118 120 3 other signatures 13->120 17 x86_64.uhavenobotsxd.elf sh 13->17         started        19 x86_64.uhavenobotsxd.elf sh 13->19         started        21 x86_64.uhavenobotsxd.elf sh 13->21         started        23 19 other processes 13->23 signatures7 process8 process9 25 sh .monitor 17->25         started        27 sh S99backup0 19->27         started        29 sh S99network 21->29         started        31 sh S99backup2 23->31         started        33 sh S99backup1 23->33         started        35 sh cp 23->35         started        39 16 other processes 23->39 file10 41 .monitor 25->41         started        43 S99backup0 27->43         started        45 S99network 29->45         started        47 S99backup2 31->47         started        49 S99backup1 33->49         started        72 /usr/bin/.update, ELF 35->72 dropped 98 Writes identical ELF files to multiple locations 35->98 100 Drops invisible ELF files 35->100 102 Drops files in suspicious directories 35->102 74 /var/spool/cron/crontabs/tmp.V9jRNK, ASCII 39->74 dropped 76 /var/log/.update, ELF 39->76 dropped 78 /var/.update, ELF 39->78 dropped 80 /mnt/.update, ELF 39->80 dropped 104 Sample deletes itself 39->104 106 Sample tries to persist itself using cron 39->106 108 Executes the "crontab" command typically for achieving persistence 39->108 110 Terminates several processes with shell command 'killall' 39->110 51 sh crontab 39->51         started        signatures11 process12 signatures13 62 105 other processes 41->62 54 S99backup0 .update 43->54         started        64 131 other processes 43->64 56 S99network .update 45->56         started        66 127 other processes 45->66 58 S99backup2 .update 47->58         started        68 126 other processes 47->68 60 S99backup1 .update 49->60         started        70 125 other processes 49->70 96 Executes the "crontab" command typically for achieving persistence 51->96 process14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-02 12:22:16 UTC
File Type:
ELF64 Little (Exe)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k7p2alfvhw6inf2o3uoi43vdgxoyhymll7outu5zovcjzfyyzg6q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260102-pj3erafn4x/
Behaviour
Reads runtime system information
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Looks up external IP address via web service
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Mirai
Mirai family
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_33b4111a
Link:
https://app.threat.zone/submission/496b1db2-d514-40f0-9b2c-2856d6044227
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd

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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
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 57dfa02cb53dbc86974edd1c8e6ea335dd83e18b5fdd49d3b975449c9718c9bd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3714269/
  
Delivery method
Distributed via web download

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