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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44fce690bd27d926d990a3929d1fe91a817c42d8213cd4eeb50ad0bf9bf50583. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: 44fce690bd27d926d990a3929d1fe91a817c42d8213cd4eeb50ad0bf9bf50583
SHA3-384 hash: 6345a06f3aa157106a979f228ec78056925d72c079e40ce077947c15b4b2718120903a463b28c27bd22022231d21c39a
SHA1 hash: d3ac6728443549627b815b4bbe9f574195b76db5
MD5 hash: 8a55f9c75588c47b8f01d333663c7d32
humanhash: papa-arkansas-equal-east
File name:putita.x86_64
Download: download sample
Signature Mirai
File size:56'340 bytes
First seen:2026-07-15 18:26:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 768:MS1e1nf6uieKBFIU+7yNxVMY0CLXSYJm9K5sdt+qO7Unkn4yJI66Fidd0Az6jdWh:MS1cUZMY0kSYJm05sKqO794766e+yKdA
TLSH T19643F2B741277CBED426B33309D18BC29DA82055766827BAC416623BCCFFD90179CE66
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) :56'340 bytes
File size (de-compressed) :120'696 bytes
Format:linux/amd64
Unpacked file: 47246e197e6a7aa64f23ea644571ea782b053e7f617663cac1edaa0d6610ccb5

Intelligence


File Origin
# of uploads :
1
# of downloads :
83
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
16
Number of processes launched:
14
Processes remaning?
true
Remote TCP ports scanned:
not identified
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-15T20:34:00Z UTC
Last seen:
2026-07-16T19:29:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=09190a3b-1f00-0000-5410-660267140000 pid=5223 /usr/bin/sudo guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224 /tmp/sample.bin delete-file mprotect-exec net write-config write-file guuid=09190a3b-1f00-0000-5410-660267140000 pid=5223->guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a734c83d-1f00-0000-5410-660269140000 pid=5225 /usr/bin/dash guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=a734c83d-1f00-0000-5410-660269140000 pid=5225 execve guuid=53c4103e-1f00-0000-5410-66026a140000 pid=5226 /usr/bin/dash guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=53c4103e-1f00-0000-5410-66026a140000 pid=5226 execve guuid=a72ab73e-1f00-0000-5410-66026d140000 pid=5229 /usr/bin/chattr zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=a72ab73e-1f00-0000-5410-66026d140000 pid=5229 execve guuid=7646bb3e-1f00-0000-5410-66026e140000 pid=5230 /usr/bin/chattr zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=7646bb3e-1f00-0000-5410-66026e140000 pid=5230 execve guuid=279ebf3e-1f00-0000-5410-66026f140000 pid=5231 /usr/bin/chattr zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=279ebf3e-1f00-0000-5410-66026f140000 pid=5231 execve guuid=a287c23e-1f00-0000-5410-660270140000 pid=5232 /usr/bin/busybox zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=a287c23e-1f00-0000-5410-660270140000 pid=5232 execve guuid=54dcc53e-1f00-0000-5410-660271140000 pid=5233 /usr/bin/busybox zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=54dcc53e-1f00-0000-5410-660271140000 pid=5233 execve guuid=d653ca3e-1f00-0000-5410-660272140000 pid=5234 /usr/bin/busybox zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=d653ca3e-1f00-0000-5410-660272140000 pid=5234 execve guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235 /tmp/sample.bin net zombie guuid=3757f83c-1f00-0000-5410-660268140000 pid=5224->guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235 clone guuid=67b3433e-1f00-0000-5410-66026b140000 pid=5227 /usr/bin/dash guuid=53c4103e-1f00-0000-5410-66026a140000 pid=5226->guuid=67b3433e-1f00-0000-5410-66026b140000 pid=5227 clone guuid=3c4d493e-1f00-0000-5410-66026c140000 pid=5228 /usr/bin/dash guuid=53c4103e-1f00-0000-5410-66026a140000 pid=5226->guuid=3c4d493e-1f00-0000-5410-66026c140000 pid=5228 clone 706d8119-5804-563f-93fb-1ad04086f3d8 64.89.163.215:666 guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235->706d8119-5804-563f-93fb-1ad04086f3d8 con guuid=33ebf43e-1f00-0000-5410-660274140000 pid=5236 /tmp/sample.bin guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235->guuid=33ebf43e-1f00-0000-5410-660274140000 pid=5236 clone guuid=0f6ef83e-1f00-0000-5410-660275140000 pid=5237 /tmp/sample.bin guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235->guuid=0f6ef83e-1f00-0000-5410-660275140000 pid=5237 clone guuid=bfcafb3e-1f00-0000-5410-660276140000 pid=5238 /tmp/sample.bin guuid=17b0cd3e-1f00-0000-5410-660273140000 pid=5235->guuid=bfcafb3e-1f00-0000-5410-660276140000 pid=5238 clone
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1943070 Sample: putita.x86_64.elf Startdate: 15/07/2026 Architecture: LINUX Score: 80 49 64.89.163.215, 59902, 59904, 59906 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Sample is packed with UPX 2->53 9 putita.x86_64.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 61 Sample tries to set files in /etc globally writable 9->61 63 Sample tries to persist itself using /etc/profile 9->63 65 Drops files in suspicious directories 9->65 67 3 other signatures 9->67 13 putita.x86_64.elf sh 9->13         started        15 putita.x86_64.elf sh 9->15         started        17 putita.x86_64.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.x86_64.elf 20->30         started        32 putita.x86_64.elf 20->32         started        34 putita.x86_64.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.6M5KJh, ASCII 22->39 dropped 57 Sample tries to persist itself using cron 22->57 59 Executes the "crontab" command typically for achieving persistence 22->59 36 sh crontab 26->36         started        signatures11 process12 signatures13 55 Executes the "crontab" command typically for achieving persistence 36->55
Threat name:
Linux.Worm.Mirai
Status:
Suspicious
First seen:
2026-07-15 18:27:49 UTC
File Type:
ELF64 Little (SO)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation upx
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.

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: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: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 44fce690bd27d926d990a3929d1fe91a817c42d8213cd4eeb50ad0bf9bf50583

(this sample)

  
Delivery method
Distributed via web download

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