MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 098dfef2c9a5aa3abb0f3517184dffef1bfda17cffe8b81aebcfb017d5b24c75. 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 4 File information Comments

SHA256 hash: 098dfef2c9a5aa3abb0f3517184dffef1bfda17cffe8b81aebcfb017d5b24c75
SHA3-384 hash: a4defe29dc83423ecb3e17a7371e34faf4695fe7ca25d64ea49c0c565371fcdbf2ea1af632372945d8a2d2aa7d621251
SHA1 hash: 805964832f677c7e206c7743c2d5f608f26dfbc4
MD5 hash: 26d39074ea4f0ed8276c5bfa7a042588
humanhash: lactose-stairway-missouri-texas
File name:nz.mips
Download: download sample
Signature Mirai
File size:47'468 bytes
First seen:2026-07-31 14:22:13 UTC
Last seen:2026-08-01 09:41:23 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:rJZukscjNkCVeoO3LXs+JE9qd6dyveYmt1YuvLrSqtWr7O2gCJgGlzDpbuR1J2:rJokscxk4eoqXCC6d6eYqC4LB47lgGVl
TLSH T15E23E1983E089BE8CDDAC0B105AD07ED173A0A60B145FE87796296E60FCFDC278057D8
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
File size (compressed) :47'468 bytes
File size (de-compressed) :131'760 bytes
Format:linux/mips
Unpacked file: 8a334a9bbbcb7b823f7525d406fa8d49a84465de5bc8a69d5532467d95a17722

Intelligence


File Origin
# of uploads :
4
# of downloads :
113
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sets a written file as executable
Sends data to a server
Runs as daemon
Kills processes
Launching a process
Connection attempt
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-07-31T12:45:00Z UTC
Last seen:
2026-08-01T22:24:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=74434b61-1900-0000-8745-e1f9130c0000 pid=3091 /usr/bin/sudo guuid=5a567a64-1900-0000-8745-e1f9140c0000 pid=3092 /tmp/sample.bin guuid=74434b61-1900-0000-8745-e1f9130c0000 pid=3091->guuid=5a567a64-1900-0000-8745-e1f9140c0000 pid=3092 execve
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1950677 Sample: nz.mips.elf Startdate: 31/07/2026 Architecture: LINUX Score: 100 31 s3o65awrf56.net 31.56.209.153, 12121, 38004 SWISSNET-ASUS Netherlands 2->31 33 Malicious sample detected (through community Yara rule) 2->33 35 Antivirus / Scanner detection for submitted sample 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 2 other signatures 2->39 10 nz.mips.elf 2->10         started        signatures3 process4 process5 12 nz.mips.elf 10->12         started        process6 14 nz.mips.elf 12->14         started        file7 29 /etc/init.d/sysd, POSIX 14->29 dropped 45 Sample tries to set files in /etc globally writable 14->45 47 Drops files in suspicious directories 14->47 49 Sample tries to persist itself using System V runlevels 14->49 18 nz.mips.elf 14->18         started        20 nz.mips.elf sh 14->20         started        signatures8 process9 process10 22 nz.mips.elf 18->22         started        25 nz.mips.elf 18->25         started        27 sh cp 20->27         started        signatures11 41 Manipulation of devices in /dev 22->41 43 Deletes system log files 22->43
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-31 14:23:04 UTC
File Type:
ELF32 Big (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
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:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
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:upx_packed_elf_v1
Author:RandomMalware

File information


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

Web download

Mirai

elf 098dfef2c9a5aa3abb0f3517184dffef1bfda17cffe8b81aebcfb017d5b24c75

(this sample)

  
Delivery method
Distributed via web download

Comments