MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1
SHA3-384 hash: db8a06e5c59e71d69dceca28f55bb2dd487cc8b20da0a91624fd59ce2d4a0b086570d8e8973b3cf308de88b5d9d30c61
SHA1 hash: 9916eacb60c9056eb7839c72ae72920a85c6f06b
MD5 hash: 361c4539aa73be44260d0c8f9f711b05
humanhash: fruit-spring-april-friend
File name:putita.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:54'604 bytes
First seen:2026-07-16 20:49:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 768:Ylf+sSSx818AMmihjY2NwNr2NswbcHxDmUmvwOSzGnCvwtkBR6b7qNLD/8nOgrXK:YlS+818NDBS/xSUewOL7ia/SfX
TLSH T1CF330281E28EB1D9D16A5835886D0349C9061774A607B7632324B3DD12C7ACF6FB6E83
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 UPX
File size (compressed) :54'604 bytes
File size (de-compressed) :124'356 bytes
Format:linux/arm
Unpacked file: aaace917ca12470030182f439c01553732537a06f4a571eadb9fe31c81b0af3e

Intelligence

File Origin
# of uploads :
1
# of downloads :
57
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/eb3cc1a9-5ec4-498f-bd71-e262c602834d/
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a594421ef0dd0a151075323/reports/1f4c783a-c8c6-4399-8e4d-7795afd4231b/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9fdf4490-6370-45d6-8f36-c6c9954916ae
Behavior Graph:
Download SVG
%3 guuid=50cdcdcb-1e00-0000-7119-b3a237140000 pid=5175 /usr/bin/sudo guuid=c35aabd0-1e00-0000-7119-b3a238140000 pid=5176 /tmp/sample.bin guuid=50cdcdcb-1e00-0000-7119-b3a237140000 pid=5175->guuid=c35aabd0-1e00-0000-7119-b3a238140000 pid=5176 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cf66dda6-2c3b-4fae-ab51-59cb3ec3c47f
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1943876
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Protects files from modification
Sample deletes itself
Sample is packed with UPX
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1943876 Sample: putita.arm7.elf Startdate: 16/07/2026 Architecture: LINUX Score: 80 53 64.89.163.215, 60646, 60648, 60650 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->53 55 109.202.202.202, 80 INIT7CH Switzerland 2->55 57 3 other IPs or domains 2->57 59 Sample is packed with UPX 2->59 9 putita.arm7.elf 2->9         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 file5 43 /usr/lib/kworker-helper, ELF 9->43 dropped 45 /root/.bashrc, ASCII 9->45 dropped 47 /etc/systemd/system/kworker-helper.service, ASCII 9->47 dropped 49 3 other malicious files 9->49 dropped 65 Sample tries to set files in /etc globally writable 9->65 67 Sample tries to persist itself using /etc/profile 9->67 69 Drops files in suspicious directories 9->69 71 3 other signatures 9->71 17 putita.arm7.elf sh 9->17         started        19 putita.arm7.elf sh 9->19         started        21 putita.arm7.elf chattr 9->21         started        24 6 other processes 9->24 signatures6 process7 signatures8 26 sh crontab 17->26         started        30 sh 17->30         started        32 sh crontab 19->32         started        61 Protects files from modification 21->61 34 putita.arm7.elf 24->34         started        36 putita.arm7.elf 24->36         started        38 putita.arm7.elf 24->38         started        process9 file10 51 /var/spool/cron/crontabs/tmp.70qkv0, ASCII 26->51 dropped 73 Sample tries to persist itself using cron 26->73 75 Executes the "crontab" command typically for achieving persistence 26->75 40 sh crontab 30->40         started        signatures11 process12 signatures13 63 Executes the "crontab" command typically for achieving persistence 40->63
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=khv7wgqusmzl7fd3h4hbay7rrzm55d7t4w3vz4vocamwtxcw4xyq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260716-zmy7lshs8w/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
UPX packed file
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
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/51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1

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_arm_mips_ko_so
Create hunting rule
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:upx_packed_elf_v1
Create hunting rule
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 51ebfb1a149332bf947b3f0e1063f18e59de8ff3e5b75cf2ae101969dc56e5f1

(this sample)

Mirai

elf aaace917ca12470030182f439c01553732537a06f4a571eadb9fe31c81b0af3e

  
URLhaus
https://urlhaus.abuse.ch/url/3885281/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 aaace917ca12470030182f439c01553732537a06f4a571eadb9fe31c81b0af3e
  
Dropping
MD5 8169464b9645d5d015922345bdc50bef

Comments