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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7340e79ce442b5b4c49312e821ecdbc54772557375997a5a0867f4e2b26c0505. 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 15 File information Comments

SHA256 hash: 7340e79ce442b5b4c49312e821ecdbc54772557375997a5a0867f4e2b26c0505
SHA3-384 hash: e11b72984103ac0729507461dcd58b3a10c175a332d53634969815994c1e575247dd54ef818a4f89c85233cbca1a2610
SHA1 hash: ee12bfe98b1feb404bed9e623334fb51f600bed0
MD5 hash: ce1968195df04d7c7dff4210c9beb372
humanhash: violet-low-three-oregon
File name:sever1078.arm
Download: download sample
Signature Mirai
File size:480'808 bytes
First seen:2026-09-18 15:02:01 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:Fw5Zw1RnAdBtnQbcVwbxcgbJOS3ChWMxKG+P9ERjBLccFbCjTeYtPQikbElRFgNm:Fwg1RsQbbxc9S3bETj+jR9BRFKglLic
TLSH T144A46B85BC809B95C5E12BB7FB6E9288331317B8D2EF70078D159B2467DBC960F7A640
telfhash t195511263a9f61258b7c682e0c29f583ed5ea31b49b402643491d7b2f5e53dc03127c1b
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 2da6fbb632bfb762c720df4a2c4adbfee44f597c405484f39c0dc6eeb8360639
File size (compressed) :218'320 bytes
File size (de-compressed) :480'808 bytes
Format:linux/arm
Packed file: 2da6fbb632bfb762c720df4a2c4adbfee44f597c405484f39c0dc6eeb8360639

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin masquerade rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-09-18T13:12:00Z UTC
Last seen:
2026-09-19T22:26:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=05a9e3f9-1a00-0000-e11a-2dd8500a0000 pid=2640 /usr/bin/sudo guuid=7859dffb-1a00-0000-e11a-2dd8510a0000 pid=2641 /tmp/sample.bin guuid=05a9e3f9-1a00-0000-e11a-2dd8500a0000 pid=2640->guuid=7859dffb-1a00-0000-e11a-2dd8510a0000 pid=2641 execve
Gathering data
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1974827 Sample: sever1078.arm.elf Startdate: 18/09/2026 Architecture: LINUX Score: 100 87 61.46.194.242 ZAQJCOMCoLtdJP Japan 2->87 89 208.73.159.195, 5555 WFG-WillkieFarrGallagherLLPUS Canada 2->89 91 100 other IPs or domains 2->91 93 Suricata IDS alerts for network traffic 2->93 95 Antivirus detection for dropped file 2->95 97 Antivirus / Scanner detection for submitted sample 2->97 99 3 other signatures 2->99 9 sever1078.arm.elf .sysd 2->9         started        13 systemd .sysd 2->13         started        15 systemd .sysd 2->15         started        17 5 other processes 2->17 signatures3 process4 file5 83 /var/tmp/.sysd, ELF 9->83 dropped 105 Drops invisible ELF files 9->105 19 sever1078.arm.elf sh 9->19         started        21 .sysd sh 9->21         started        23 sever1078.arm.elf sh 9->23         started        31 4 other processes 9->31 85 /var/tmp/.sysd.lock, ASCII 13->85 dropped 25 .sysd sh 13->25         started        33 4 other processes 13->33 27 .sysd sh 15->27         started        29 .sysd 15->29         started        35 3 other processes 15->35 signatures6 process7 process8 37 sh 19->37         started        39 sh 21->39         started        47 3 other processes 23->47 41 sh 25->41         started        43 sh 27->43         started        49 3 other processes 29->49 45 .sysd 31->45         started        51 2 other processes 31->51 53 3 other processes 33->53 process9 55 sh crontab 37->55         started        67 2 other processes 37->67 59 sh crontab 39->59         started        69 2 other processes 39->69 61 sh crontab 41->61         started        71 2 other processes 41->71 63 sh crontab 43->63         started        73 2 other processes 43->73 65 .sysd 45->65         started        file10 75 /var/spool/cron/crontabs/tmp.EcXdiz, ASCII 55->75 dropped 101 Sample tries to persist itself using cron 55->101 103 Executes the "crontab" command typically for achieving persistence 55->103 77 /var/spool/cron/crontabs/tmp.mb0y2L, ASCII 59->77 dropped 79 /var/spool/cron/crontabs/tmp.YfawTf, ASCII 61->79 dropped 81 /var/spool/cron/crontabs/tmp.0m8cT2, ASCII 63->81 dropped signatures11
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-09-18 14:54:30 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet
Malware Config
C2 Extraction:
bigbigvol.qd.je
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Author:Elastic Security
Rule name:Linux_Generic_Threat_d94e1020
Author:Elastic Security
Rule name:NSVPS_Mirai_Busybox_Staging
Author:sanad (NSVPS-SOC)
Description:Mirai-style busybox wget/tftp payload staging seen in NSVPS honeypot
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:VPNFilter
Author:Christiaan Beek @ McAfee Advanced Threat Research
Description:Filter for 2nd stage malware used in VPNfilter attack
Reference:https://blog.talosintelligence.com/2018/05/VPNFilter.html

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 7340e79ce442b5b4c49312e821ecdbc54772557375997a5a0867f4e2b26c0505

(this sample)

  
Delivery method
Distributed via web download

Comments