MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58
SHA3-384 hash: 354f3761c912b81ca0b7b8d56836b40fbc5e3f8e79b297cb57837b78625f03b7e69b9084da23874ea505fd319052798a
SHA1 hash: ba43b74938a893be5f0ce7ad519a1f025cc99c11
MD5 hash: 4e9c6a8842db3d6956a07d04c5237f10
humanhash: jersey-dakota-florida-oklahoma
File name:mipsel.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:136'552 bytes
First seen:2025-12-24 18:36:08 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:9QTYYPyAmNoo33XHDfSU5fBhHTJYQFFrOPw:GTPybKo3nHDhfBBJPI
TLSH T1FDD30609FF614EFBE86FCD3706E90705258C655222B83BBA7574D92CF20E64B0AD3964
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 :
62
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-10010119-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10017641-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
bash lolbin mirai
Link:
https://www.filescan.io/uploads/694c32a1a7163552ba04a95e/reports/549d6911-a45f-4905-9cbe-e42569bd0ea4/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-24T15:44:00Z UTC
Last seen:
2025-12-24T16:21:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/adaa16c8-9d84-4daf-9bf4-4828db560b4d
Behavior Graph:
Download SVG
%3 guuid=421f8992-1500-0000-a2ef-64b3ba0b0000 pid=3002 /usr/bin/sudo guuid=c8ecc294-1500-0000-a2ef-64b3c10b0000 pid=3009 /tmp/sample.bin guuid=421f8992-1500-0000-a2ef-64b3ba0b0000 pid=3002->guuid=c8ecc294-1500-0000-a2ef-64b3c10b0000 pid=3009 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bc85d2b4-ca52-40bb-ba7c-976fb89031bb
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1839019
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 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: 1839019 Sample: mipsel.uhavenobotsxd.elf Startdate: 24/12/2025 Architecture: LINUX Score: 100 96 75.180.195.3, 80 TWC-11426-CAROLINASUS United States 2->96 98 91.108.13.40, 32000 TELEGRAM_MESSENGERRU United Kingdom 2->98 100 18 other IPs or domains 2->100 102 Multi AV Scanner detection for submitted file 2->102 11 mipsel.uhavenobotsxd.elf 2->11         started        signatures3 process4 signatures5 124 Sample tries to kill multiple processes (SIGKILL) 11->124 126 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->126 14 mipsel.uhavenobotsxd.elf 11->14         started        process6 file7 88 /var/spool/cron/root, ASCII 14->88 dropped 90 /var/spool/cron/crontabs/root, ASCII 14->90 dropped 92 /root/.bashrc, ASCII 14->92 dropped 94 11 other files (10 malicious) 14->94 dropped 128 Sample tries to set files in /etc globally writable 14->128 130 Sample tries to persist itself using /etc/profile 14->130 132 Drops files in suspicious directories 14->132 134 4 other signatures 14->134 18 mipsel.uhavenobotsxd.elf sh 14->18         started        20 mipsel.uhavenobotsxd.elf sh 14->20         started        22 mipsel.uhavenobotsxd.elf sh 14->22         started        24 55 other processes 14->24 signatures8 process9 signatures10 27 sh S99backup0 18->27         started        29 sh S99backup1 20->29         started        31 sh S99backup2 22->31         started        120 Sample tries to kill a massive number of system processes 24->120 122 Sample tries to kill multiple processes (SIGKILL) 24->122 33 sh S99network 24->33         started        35 sh cp 24->35         started        39 sh crontab 24->39         started        41 48 other processes 24->41 process11 file12 43 S99backup0 27->43         started        45 S99backup1 29->45         started        47 S99backup2 31->47         started        49 S99network 33->49         started        78 /usr/bin/.update, ELF 35->78 dropped 106 Writes identical ELF files to multiple locations 35->106 108 Drops invisible ELF files 35->108 110 Drops files in suspicious directories 35->110 80 /var/spool/cron/crontabs/tmp.m9ALoy, ASCII 39->80 dropped 112 Sample tries to persist itself using cron 39->112 114 Executes the "crontab" command typically for achieving persistence 39->114 82 /var/log/.update, ELF 41->82 dropped 84 /var/jbx/shared/.update, ELF 41->84 dropped 86 /boot/.update, ELF 41->86 dropped 116 Sample deletes itself 41->116 118 Terminates several processes with shell command 'killall' 41->118 51 sh crontab 41->51         started        54 .monitor 41->54         started        56 sh .update 41->56         started        58 sh .update 41->58         started        signatures13 process14 signatures15 60 S99backup0 .update 43->60         started        68 79 other processes 43->68 62 S99backup1 .update 45->62         started        70 73 other processes 45->70 64 S99backup2 .update 47->64         started        72 71 other processes 47->72 66 S99network .update 49->66         started        74 69 other processes 49->74 104 Executes the "crontab" command typically for achieving persistence 51->104 76 2 other processes 54->76 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-24 18:36:19 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jji55el62q22f2oswo6s6mgu2euctzn2pmmqw7lrzqpfpe7aprma._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/251224-w86l2aax6b/
Behaviour
Reads runtime system information
System Network Configuration Discovery
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
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c5b4a74b-5e40-4643-804e-8098b6d532e3
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/4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58

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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
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 4a51de917ed435a2e9d2b3bd2f30d4d12829e5ba7b190b7d71cc1e5793e07c58

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686381/
  
Delivery method
Distributed via web download

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