MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2c0cae650ddf10b0d3be03931adb4f7ade22e061b71e6728205f8a11b02f5a5. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2c0cae650ddf10b0d3be03931adb4f7ade22e061b71e6728205f8a11b02f5a5
SHA3-384 hash: 374bb84a2bdd4e1e12f3a1feb075ac300ca736633da38009f61d079b04b5802e05684d0cacd19ee6d8534c19aee22e91
SHA1 hash: a1e2a3641cc5dcdbd443f02c879bada1057c1541
MD5 hash: 170e626f9c595f98c42d3ea81f78a587
humanhash: cold-december-network-nebraska
File name:putita.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:70'088 bytes
First seen:2026-07-12 02:36:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:gvhhzFBU8f1b7mE3cAMUi8l8AXb4GqtAzUtrBM3NyFOeQw:gZhzFBl171c1UiarCtaUt634D
TLSH T1A06302C4EB9E0589C84D33B50C555B8B3454F651ADE01554F9CB8A1A2FBF83C28B4FAE
Magika unknown
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :70'088 bytes
File size (de-compressed) :159'360 bytes
Format:linux/mips
Unpacked file: 66d7509a1d19c4f6a25b5aec9f432e8423b3b123b6359b4d5be2cc52385b3842

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/4f1dd834-7cca-4b13-a56e-408731677d98/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Launching a process
Connection attempt
Runs as daemon
Receives data from a server
Sends data to a server
Changes access rights for a written file
Creating a file
Creates or modifies symbolic links
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files to set up autorun
Deleting of the original file
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a52fdfa3607ce2959b52577/reports/23cce0b7-6da1-4bea-afea-c91f8f3126d3/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/939de721-e2e1-4070-8c98-1db62180d840
Behavior Graph:
Download SVG
%3 guuid=0d712d7f-1f00-0000-0b04-306047140000 pid=5191 /usr/bin/sudo guuid=580a1582-1f00-0000-0b04-306048140000 pid=5192 /tmp/sample.bin guuid=0d712d7f-1f00-0000-0b04-306047140000 pid=5191->guuid=580a1582-1f00-0000-0b04-306048140000 pid=5192 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fa513204-b846-481d-bade-7af3ee9edcf6
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1941083
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1941083 Sample: putita.mips.elf Startdate: 12/07/2026 Architecture: LINUX Score: 96 49 64.89.163.215, 44274, 44276, 44278 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Sample is packed with UPX 2->55 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 63 Sample tries to set files in /etc globally writable 9->63 65 Sample tries to persist itself using /etc/profile 9->65 67 Drops files in suspicious directories 9->67 69 3 other signatures 9->69 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.yqsCRv, ASCII 22->39 dropped 59 Sample tries to persist itself using cron 22->59 61 Executes the "crontab" command typically for achieving persistence 22->61 36 sh crontab 26->36         started        signatures11 process12 signatures13 57 Executes the "crontab" command typically for achieving persistence 36->57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2c0cae650ddf10b0d3be03931adb4f7ade22e061b71e6728205f8a11b02f5a5/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wlamvzsq3xyqwdj34a4tdlnu66w6elqgdny6m4ucax4kcgyc6wsq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260712-c4gmkabz7j/
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/b2c0cae650ddf10b0d3be03931adb4f7ade22e061b71e6728205f8a11b02f5a5

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: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 b2c0cae650ddf10b0d3be03931adb4f7ade22e061b71e6728205f8a11b02f5a5

(this sample)

Mirai

elf 66d7509a1d19c4f6a25b5aec9f432e8423b3b123b6359b4d5be2cc52385b3842

  
URLhaus
https://urlhaus.abuse.ch/url/3885290/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 66d7509a1d19c4f6a25b5aec9f432e8423b3b123b6359b4d5be2cc52385b3842
  
Dropping
MD5 a1c5ee42de2466c1db34b90bb0486ce0

Comments