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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f
SHA3-384 hash: 19f93a8b5db3038156a510523b803812fba53e8aa9d309fac1d35ae5af45cfe2991541ef6bf59d0188fad21efcaa8e5d
SHA1 hash: 7a9586f210eeb05d04360fe8af4a224211e3c3dd
MD5 hash: eff9666c927bf9b1976c62827c27124a
humanhash: solar-mockingbird-friend-berlin
File name:putita.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:133'008 bytes
First seen:2026-08-22 14:42:16 UTC
Last seen:2026-08-23 10:30:18 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:fZl9xLSCc5GXjMfmxxK/JXJmUBm2Rt7DGAhBMUdio72bJQHDx:xl9xLIEXjMeW2MmwIAhBMA7p1
TLSH T1EDD312148435331BD0DC5DB20F174FD62081A2BE3D1321BEA8AD3F6D56A9935A67B72C
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :133'008 bytes
File size (de-compressed) :274'448 bytes
Format:linux/mips
Unpacked file: e0996b11ca674d5ae7e4fd1d3576364439fef60077289e44b987f7914da5d68d

Intelligence

File Origin
# of uploads :
2
# of downloads :
64
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e4aa1057-af00-4d59-bad0-005967c31923/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Changes the time when the file was created, accessed, or modified
Changes access rights for a written file
Launching a process
Connection attempt
Sets a written file as executable
Runs as daemon
Creates or modifies symbolic links
Creating a file
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/6a89b5817036f850457a7574/reports/d2e61af1-b917-4dbb-a7e8-4b156a2b578e/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
17
Number of processes launched:
14
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/84d3b24a-27c6-47b0-bbd4-06ca9a4ff682
Behavior Graph:
Download SVG
%3 guuid=07271a7c-1c00-0000-6c03-ace1e9090000 pid=2537 /usr/bin/sudo guuid=fe6a5e7f-1c00-0000-6c03-ace1ed090000 pid=2541 /tmp/sample.bin guuid=07271a7c-1c00-0000-6c03-ace1e9090000 pid=2537->guuid=fe6a5e7f-1c00-0000-6c03-ace1ed090000 pid=2541 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/22e1246a-ce6f-4ead-a969-fb965a39fc84
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1962238
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
Multi AV Scanner detection for submitted file
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
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1962238 Sample: putita.mips.elf Startdate: 22/08/2026 Architecture: LINUX Score: 96 49 64.89.163.215, 49632, 49634, 49636 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected Mirai 2->55 57 Sample is packed with UPX 2->57 9 putita.mips.elf 2->9         started        signatures3 process4 file5 41 /usr/lib/kworker-helper, ELF 9->41 dropped 43 /root/.bashrc, ASCII 9->43 dropped 45 /etc/systemd/system/kworker-helper.service, ASCII 9->45 dropped 47 3 other malicious files 9->47 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 13 putita.mips.elf sh 9->13         started        15 putita.mips.elf sh 9->15         started        17 putita.mips.elf chattr 9->17         started        20 6 other processes 9->20 signatures6 process7 signatures8 22 sh crontab 13->22         started        26 sh 13->26         started        28 sh crontab 15->28         started        51 Protects files from modification 17->51 30 putita.mips.elf 20->30         started        32 putita.mips.elf 20->32         started        34 putita.mips.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.wMaruB, ASCII 22->39 dropped 61 Sample tries to persist itself using cron 22->61 63 Executes the "crontab" command typically for achieving persistence 22->63 36 sh crontab 26->36         started        signatures11 process12 signatures13 59 Executes the "crontab" command typically for achieving persistence 36->59
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-22 14:43:18 UTC
File Type:
ELF32 Big (SO)
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ugsx73thd5vur7tn244t6vmmbma66yg5p6tiawtp52haunlygnxq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260822-r3nf2svhmg/
Behaviour
Reads runtime system information
System Network Configuration Discovery
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/a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f

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_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
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: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 a1a57fee671f6b48fe6dd7393f558c0b01ef60dd7fa6805a6fee8e0a3578336f

(this sample)

Mirai

elf e0996b11ca674d5ae7e4fd1d3576364439fef60077289e44b987f7914da5d68d

  
URLhaus
https://urlhaus.abuse.ch/url/3885290/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 e0996b11ca674d5ae7e4fd1d3576364439fef60077289e44b987f7914da5d68d
  
Dropping
MD5 d3ab968a8ec45ba8c6a1b3f2c94a06c7
  
URLhaus
https://urlhaus.abuse.ch/url/3892137/
  
URLhaus
https://urlhaus.abuse.ch/url/3892123/

Comments