MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4a4f43c6efee41dbd3d761503bc5cc5ab7cf1c20a6065971edefe42408fc361. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4a4f43c6efee41dbd3d761503bc5cc5ab7cf1c20a6065971edefe42408fc361
SHA3-384 hash: b54960953ec258e9c927bb15054f77d567d432f8a5f54aa0563ddbe3035e133acf217eecf0c7c7cc56265bf10c3b0c9a
SHA1 hash: e60c2018d7b273dda0ecac503fcf6b9ecd9758c4
MD5 hash: dce8f1e3c36c972c8d2baa8488cb4202
humanhash: speaker-sierra-london-bakerloo
File name:putita.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:56'744 bytes
First seen:2026-07-15 23:48:09 UTC
Last seen:2026-07-16 06:34:05 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 768:EQEzbLA8R6vfMqeDZL88KoSN2LAIgghAmcTw9W5uz5Kwtd/syFPHOwqEJwndNK:v4R6HMqep85NMAInhL6wmudayFPHUAJ
TLSH T1A043F1FE5D9256FBD67892B2AF4930F8B3D2255420520B77A445307EC8EE7641890FB2
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) :56'744 bytes
File size (de-compressed) :120'696 bytes
Format:linux/amd64
Unpacked file: a1522fcc06148485082b82f1e774c286ee98139150a948be54eec8f5f20e3945

Intelligence

File Origin
# of uploads :
2
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e0bc9570-08df-43af-9cac-f57e5f1328d3/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6a581c51baa8517d0a03b08b/reports/5419f9d0-55aa-40d4-8e82-e0155bbe330b/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5dcdeeab-f6bd-472b-b025-04044772a938
Behavior Graph:
Download SVG
%3 guuid=946e321f-2000-0000-5f0e-6ff352140000 pid=5202 /usr/bin/sudo guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203 /tmp/sample.bin delete-file mprotect-exec net write-config write-file guuid=946e321f-2000-0000-5f0e-6ff352140000 pid=5202->guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a7f93c27-2000-0000-5f0e-6ff354140000 pid=5204 /usr/bin/dash guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=a7f93c27-2000-0000-5f0e-6ff354140000 pid=5204 execve guuid=53c1cd27-2000-0000-5f0e-6ff355140000 pid=5205 /usr/bin/dash guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=53c1cd27-2000-0000-5f0e-6ff355140000 pid=5205 execve guuid=3838bc29-2000-0000-5f0e-6ff358140000 pid=5208 /usr/bin/chattr zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=3838bc29-2000-0000-5f0e-6ff358140000 pid=5208 execve guuid=5197c829-2000-0000-5f0e-6ff359140000 pid=5209 /usr/bin/chattr zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=5197c829-2000-0000-5f0e-6ff359140000 pid=5209 execve guuid=8af7d729-2000-0000-5f0e-6ff35a140000 pid=5210 /usr/bin/chattr zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=8af7d729-2000-0000-5f0e-6ff35a140000 pid=5210 execve guuid=16dce329-2000-0000-5f0e-6ff35b140000 pid=5211 /usr/bin/busybox zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=16dce329-2000-0000-5f0e-6ff35b140000 pid=5211 execve guuid=aca3eb29-2000-0000-5f0e-6ff35c140000 pid=5212 /usr/bin/busybox zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=aca3eb29-2000-0000-5f0e-6ff35c140000 pid=5212 execve guuid=20faf529-2000-0000-5f0e-6ff35d140000 pid=5213 /usr/bin/busybox zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=20faf529-2000-0000-5f0e-6ff35d140000 pid=5213 execve guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214 /tmp/sample.bin net zombie guuid=52e7b224-2000-0000-5f0e-6ff353140000 pid=5203->guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214 clone guuid=fc564128-2000-0000-5f0e-6ff356140000 pid=5206 /usr/bin/dash guuid=53c1cd27-2000-0000-5f0e-6ff355140000 pid=5205->guuid=fc564128-2000-0000-5f0e-6ff356140000 pid=5206 clone guuid=2b437d28-2000-0000-5f0e-6ff357140000 pid=5207 /usr/bin/dash guuid=53c1cd27-2000-0000-5f0e-6ff355140000 pid=5205->guuid=2b437d28-2000-0000-5f0e-6ff357140000 pid=5207 clone 706d8119-5804-563f-93fb-1ad04086f3d8 64.89.163.215:666 guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214->706d8119-5804-563f-93fb-1ad04086f3d8 con guuid=3cf5492a-2000-0000-5f0e-6ff35f140000 pid=5215 /tmp/sample.bin guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214->guuid=3cf5492a-2000-0000-5f0e-6ff35f140000 pid=5215 clone guuid=355e4f2a-2000-0000-5f0e-6ff360140000 pid=5216 /tmp/sample.bin guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214->guuid=355e4f2a-2000-0000-5f0e-6ff360140000 pid=5216 clone guuid=b16b532a-2000-0000-5f0e-6ff361140000 pid=5217 /tmp/sample.bin guuid=b97eff29-2000-0000-5f0e-6ff35e140000 pid=5214->guuid=b16b532a-2000-0000-5f0e-6ff361140000 pid=5217 clone
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0556b890-d3fd-4ac0-9f21-22314def103b
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1943211
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: 1943211 Sample: putita.x86_64.elf Startdate: 16/07/2026 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.9SNP4P, 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
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d4a4f43c6efee41dbd3d761503bc5cc5ab7cf1c20a6065971edefe42408fc361
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4a4f43c6efee41dbd3d761503bc5cc5ab7cf1c20a6065971edefe42408fc361/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2sspipdo73sb3pj5oykqhpc4ywvxz4ocbjqglfy6337eeqepynqq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/260715-3tp43aby2z/
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
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 d4a4f43c6efee41dbd3d761503bc5cc5ab7cf1c20a6065971edefe42408fc361

(this sample)

Mirai

elf a1522fcc06148485082b82f1e774c286ee98139150a948be54eec8f5f20e3945

  
URLhaus
https://urlhaus.abuse.ch/url/3885289/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 a1522fcc06148485082b82f1e774c286ee98139150a948be54eec8f5f20e3945
  
Dropping
MD5 e850de83c2328cf6ead7169bcc479cb9

Comments