MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e. 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: a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e
SHA3-384 hash: f994f53e9d07ee11c899ba259a50f1dbbf6c1cf7ee4e16c77c8ac167841207d199c4ce2ce0007bb7cd4340d934c67ded
SHA1 hash: ac44804efba2706c9a71ecc3611b0972648433c3
MD5 hash: fa0c7410712429f3973867b22bb79973
humanhash: comet-carolina-tennis-oscar
File name:putita.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:178'252 bytes
First seen:2026-07-15 18:04:29 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:N05TbBU1mln6WIcZukkUXWMhQWSG6xAZRDd3/FtQxTQ6VS2J1DfN:NmBU1mlnBICukkUXphQWSGTZRZFtQxTx
TLSH T11E041A496E756BEBC06FCE30162D830622DD644F62F6B77EA378CD4C399A20859F3854
telfhash t14231bef08b3b65219a89cbec85edb75e461e9505470adf33fe2181bc90160ede229d4f
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 e3d19813945c24af5d0710ffec59d0f0e644ed9a778befe4ae6ec19a9318d5a6
File size (compressed) :78'604 bytes
File size (de-compressed) :178'252 bytes
Format:linux/mipsel
Packed file: e3d19813945c24af5d0710ffec59d0f0e644ed9a778befe4ae6ec19a9318d5a6

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Trojan.Mirai-10058997-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-15T22:59:00Z UTC
Last seen:
2026-07-16T19:02:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/06058007-b8e1-4d96-b9b7-e6fb1fb9f973
Behavior Graph:
Download SVG
%3 guuid=8fcd5238-1f00-0000-a6ff-40d13e140000 pid=5182 /usr/bin/sudo guuid=389b963a-1f00-0000-a6ff-40d13f140000 pid=5183 /tmp/sample.bin guuid=8fcd5238-1f00-0000-a6ff-40d13e140000 pid=5182->guuid=389b963a-1f00-0000-a6ff-40d13f140000 pid=5183 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a78617c3-6a49-420a-a9a0-06d54fda7862
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1943052
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains symbols with names commonly found in malware
Drops files in suspicious directories
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
Protects files from modification
Sample deletes itself
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: 1943052 Sample: putita.mpsl.elf Startdate: 15/07/2026 Architecture: LINUX Score: 100 88 64.89.163.215, 60650, 60652, 60656 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->88 90 109.202.202.202, 80 INIT7CH Switzerland 2->90 92 3 other IPs or domains 2->92 98 Antivirus detection for dropped file 2->98 100 Antivirus / Scanner detection for submitted sample 2->100 102 Multi AV Scanner detection for submitted file 2->102 104 Contains symbols with names commonly found in malware 2->104 14 putita.mpsl.elf 2->14         started        18 dash rm 2->18         started        20 dash rm 2->20         started        signatures3 process4 file5 78 /usr/lib/kworker-helper, ELF 14->78 dropped 80 /root/.bashrc, ASCII 14->80 dropped 82 /etc/systemd/system/kworker-helper.service, ASCII 14->82 dropped 84 3 other malicious files 14->84 dropped 110 Sample tries to set files in /etc globally writable 14->110 112 Sample tries to persist itself using /etc/profile 14->112 114 Drops files in suspicious directories 14->114 116 3 other signatures 14->116 22 putita.mpsl.elf sh 14->22         started        24 putita.mpsl.elf 14->24         started        26 putita.mpsl.elf sh 14->26         started        28 6 other processes 14->28 signatures6 process7 signatures8 31 sh crontab 22->31         started        35 sh 22->35         started        37 putita.mpsl.elf 24->37         started        39 putita.mpsl.elf 24->39         started        41 putita.mpsl.elf 24->41         started        43 sh crontab 26->43         started        106 Protects files from modification 28->106 process9 file10 86 /var/spool/cron/crontabs/tmp.1PljLx, ASCII 31->86 dropped 94 Sample tries to persist itself using cron 31->94 96 Executes the "crontab" command typically for achieving persistence 31->96 45 sh crontab 35->45         started        48 putita.mpsl.elf kworker-helper 37->48         started        50 putita.mpsl.elf kworker-helper 37->50         started        signatures11 process12 signatures13 108 Executes the "crontab" command typically for achieving persistence 45->108 52 kworker-helper 48->52         started        54 kworker-helper 50->54         started        process14 process15 56 kworker-helper 52->56         started        58 kworker-helper 52->58         started        60 kworker-helper 52->60         started        62 kworker-helper 54->62         started        64 kworker-helper 54->64         started        66 kworker-helper 54->66         started        process16 68 kworker-helper kworker-helper 56->68         started        process17 70 kworker-helper 68->70         started        process18 72 kworker-helper 70->72         started        74 kworker-helper 70->74         started        76 kworker-helper 70->76         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-15 18:05:52 UTC
File Type:
ELF32 Little (SO)
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uh7kthg6bzfnxztkutet3qbxbikc56azhswy2g27okxoiasjbkha._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion execution persistence privilege_escalation
Link:
https://tria.ge/reports/260715-wn1kaadz4s/
Behaviour
Changes its process name
Modifies Bash startup script
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/a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 e3d19813945c24af5d0710ffec59d0f0e644ed9a778befe4ae6ec19a9318d5a6

Mirai

elf a1fea99cde0e4adbe66aa4c93dc0370a142ef8193cad8d1b5f72aee402490a8e

(this sample)

  
Dropped by
SHA256 e3d19813945c24af5d0710ffec59d0f0e644ed9a778befe4ae6ec19a9318d5a6
  
URLhaus
https://urlhaus.abuse.ch/url/3885284/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 df7c2e2644756bd910db0283fde97d72

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