MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006
SHA3-384 hash: 6b4ea3069f178ae0571fda9b074ec09dde667d60faf463e8a71a0d8dc0ac50f521dc21737083eef26f9d1f8bcf55a7f9
SHA1 hash: 5363001ae4033f1f5652aadabf75c80a9a93a89d
MD5 hash: 379eed379bb8d69448a1d2ddda48f2b5
humanhash: mountain-sad-king-seven
File name:kworkerd-irq
Download: download sample
Signature Mirai
Create hunting rule
File size:291'896 bytes
First seen:2026-07-11 06:21:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:DQXfYGC1sczW2Yzlh0kvsQrtYYmYO2SwIrLQmxMQT1X+sQC2yqxAdnjqqVrA:DQvYVscRY5N75OHwaLLJ+C2gqqVrA
TLSH T154541956BD419F17C5C226F7FBAE4388371A7BA9D6EE3113D810AF50329A48F0E36251
telfhash t15ad0a7a50c5591c6b32114b412dd6b3a15b1d5ef7f6988c242d12c6c1841ac0a420e0a
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Bot.2214.27918.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 expand gcc lolbin mirai rust
Link:
https://www.filescan.io/uploads/6a51e127386045fc08ce9158/reports/e81df592-55b5-4149-ba43-4c40a9d80e9c/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-11T02:07:00Z UTC
Last seen:
2026-07-12T18:24:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9a60baec-f989-4644-9bed-47ff6d0ff6bc
Behavior Graph:
Download SVG
%3 guuid=1752bc7f-1900-0000-5df6-fd03500f0000 pid=3920 /usr/bin/sudo guuid=8aa66182-1900-0000-5df6-fd03590f0000 pid=3929 /tmp/sample.bin guuid=1752bc7f-1900-0000-5df6-fd03500f0000 pid=3920->guuid=8aa66182-1900-0000-5df6-fd03590f0000 pid=3929 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0154a382-387b-4cb8-b5da-6b6aea2bb1a2
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1940874
Signature
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Executes itself again with its parent PID as an argument (indicative of hampering debugging)
Executes the "crontab" command typically for achieving persistence
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens /sys/class/net/* files useful for querying network interface information
Sample deletes itself
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to set files in /etc globally writable
Writes identical ELF files to multiple locations
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1940874 Sample: kworkerd-irq.elf Startdate: 11/07/2026 Architecture: LINUX Score: 100 93 91.92.40.118, 443, 50744, 60236 TODYL-CLOUD-TodylIncUS Bulgaria 2->93 105 Malicious sample detected (through community Yara rule) 2->105 107 Antivirus detection for dropped file 2->107 109 Multi AV Scanner detection for submitted file 2->109 111 2 other signatures 2->111 10 kworkerd-irq.elf 2->10         started        13 systemd sh 2->13         started        15 systemd snapd-env-generator 2->15         started        17 systemd snapd-env-generator 2->17         started        signatures3 process4 signatures5 113 Found strings related to Crypto-Mining 10->113 19 kworkerd-irq.elf 10->19         started        21 sh sh 13->21         started        23 sh wget 13->23         started        26 sh rm 13->26         started        process6 file7 28 kworkerd-irq.elf 19->28         started        32 sh wget 21->32         started        34 sh .k 21->34         started        36 sh chmod 21->36         started        85 /tmp/..redis-sentinel, POSIX 23->85 dropped process8 file9 87 /etc/profile.d/red...aof-rewrite-yj78.sh, ASCII 28->87 dropped 89 /etc/init.d/redis-...ck aof-rewrite-5tth, POSIX 28->89 dropped 115 Sample tries to set files in /etc globally writable 28->115 117 Opens /sys/class/net/* files useful for querying network interface information 28->117 119 Sample tries to persist itself using /etc/profile 28->119 123 2 other signatures 28->123 38 kworkerd-irq.elf sh 28->38         started        40 kworkerd-irq.elf sh 28->40         started        42 kworkerd-irq.elf sh 28->42         started        46 9 other processes 28->46 91 /tmp/.k, ELF 32->91 dropped 121 Drops invisible ELF files 32->121 44 .k 34->44         started        signatures10 process11 signatures12 49 sh cp 38->49         started        53 sh chmod 38->53         started        55 sh cp 40->55         started        57 sh chmod 40->57         started        59 sh cp 42->59         started        61 sh chmod 42->61         started        63 .k 44->63         started        125 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 46->125 65 sh crontab 46->65         started        67 12 other processes 46->67 process13 file14 69 /usr/bin/redis-ser...ck aof-rewrite-h1cd, ELF 49->69 dropped 95 Writes identical ELF files to multiple locations 49->95 97 Drops files in suspicious directories 49->97 71 /usr/sbin/redis-se...ck aof-rewrite-0f88, ELF 55->71 dropped 73 /tmp/.redis-server...ck aof-rewrite-eufr, ELF 59->73 dropped 99 Drops invisible ELF files 59->99 75 /var/spool/cron/crontabs/tmp.gKbKMl, ASCII 65->75 dropped 101 Sample tries to persist itself using cron 65->101 103 Executes the "crontab" command typically for achieving persistence 65->103 77 /var/redis-server ...ck aof-rewrite-y1da, ELF 67->77 dropped 79 /usr/lib/redis-ser...ck aof-rewrite-rjw8, ELF 67->79 dropped 81 /usr/lib/redis-ser...ck aof-rewrite-7gia, ELF 67->81 dropped 83 /dev/shm/.redis-se...ck aof-rewrite-ijf1, ELF 67->83 dropped signatures15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-11 06:22:44 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hqx7vds64ctow6qoi5buugbbxuwx6uxfcgv7nw7glnp2sd2ayada._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260711-g46nxac16p/
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/3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006

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_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 3c2ffa8e5ee0a6eb7a0e47434a1821bd2d7f52e511abf6dbe65b5fa90f40c006

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3883714/
  
Delivery method
Distributed via web download

Comments