MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ee582c6c16f4fcfb074f159c31ddcfc3eb6e8a5c629c23fc835320711e1c5c4a. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash: ee582c6c16f4fcfb074f159c31ddcfc3eb6e8a5c629c23fc835320711e1c5c4a
SHA3-384 hash: 1c209efb1b6b2212ea0143183f25277b5547666bfefd13d5040c2be6502dc0f24f383865c901b03c4f1d7c65187b3f61
SHA1 hash: c12769f9b73295685d4cc4bbd5dc458f582a1ed5
MD5 hash: d5fefc5a33fdbcf2dfc38126a837dcd2
humanhash: beer-carolina-king-muppet
File name:kworkerd0
Download: download sample
Signature Mirai
File size:2'259'524 bytes
First seen:2026-02-18 06:38:33 UTC
Last seen:2026-02-18 11:32:41 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:muCRY1fpv5xCbgIlzlMi1z6YLGZhdMPdb8SEgDZI:mhuxpv58UHu2Y6fd6d8SEg1I
TLSH T134A533E81506AFEDF9EDA7BAC9AC5AB84734EB7FD1ED86080CC4857D480049E071BD16
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) :2'259'524 bytes
File size (de-compressed) :7'944'224 bytes
Format:linux/i386
Unpacked file: c683da4652816c79cac0079f46542e9fe47e3ce523de9c1558694c4be4ead4ca

Intelligence


File Origin
# of uploads :
3
# of downloads :
56
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm crypto packed upx
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
63
Number of processes launched:
12
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Behavior Graph:
%3 guuid=e66e82c6-1800-0000-ac80-7ea5520e0000 pid=3666 /usr/bin/sudo guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667 /tmp/sample.bin guuid=e66e82c6-1800-0000-ac80-7ea5520e0000 pid=3666->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667 execve guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3814 /tmp/sample.bin guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3814 clone guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3815 /tmp/sample.bin guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3815 clone guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3816 /tmp/sample.bin guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3816 clone guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3817 /tmp/sample.bin guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3817 clone guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3818 /tmp/sample.bin guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3818 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835 /tmp/sample.bin zombie guuid=ec426dc9-1800-0000-ac80-7ea5530e0000 pid=3667->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835 execve guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3958 /tmp/sample.bin zombie guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3958 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3959 /tmp/sample.bin write-file zombie guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3959 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3960 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3960 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3961 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3961 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3962 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3962 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3966 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3966 clone guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3967 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3835->guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3967 clone guuid=753af61f-1900-0000-ac80-7ea5900f0000 pid=3984 /tmp/sample.bin guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3959->guuid=753af61f-1900-0000-ac80-7ea5900f0000 pid=3984 clone guuid=ffaf0820-1900-0000-ac80-7ea5910f0000 pid=3985 /usr/bin/pgrep guuid=3baf0400-1900-0000-ac80-7ea5fb0e0000 pid=3959->guuid=ffaf0820-1900-0000-ac80-7ea5910f0000 pid=3985 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
48 / 100
Signature
Executes the "crontab" command typically for achieving persistence
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1870922 Sample: kworkerd0.elf Startdate: 18/02/2026 Architecture: LINUX Score: 48 33 5.59.248.236, 443, 59720 METRO-SET-ASMetrosetAutonomousSystemRU Czech Republic 2->33 35 speed.cloudflare.com 162.159.140.220, 59276, 80 CLOUDFLARENETUS United States 2->35 9 kworkerd0.elf 2->9         started        process3 process4 11 kworkerd0.elf kworkerd0.elf 9->11         started        process5 13 kworkerd0.elf bash 11->13         started        15 kworkerd0.elf crontab 11->15         started        18 kworkerd0.elf pgrep 11->18         started        20 7 other processes 11->20 signatures6 22 bash crontab 13->22         started        26 bash 13->26         started        43 Executes the "crontab" command typically for achieving persistence 15->43 process7 file8 31 /var/spool/cron/crontabs/tmp.KGBqK4, ASCII 22->31 dropped 37 Sample tries to persist itself using cron 22->37 39 Executes the "crontab" command typically for achieving persistence 22->39 28 bash crontab 26->28         started        signatures9 process10 signatures11 41 Executes the "crontab" command typically for achieving persistence 28->41
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution linux persistence privilege_escalation upx
Behaviour
GoLang User-Agent
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Reads CPU attributes
Creates/modifies Cron job
Enumerates running processes
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf ee582c6c16f4fcfb074f159c31ddcfc3eb6e8a5c629c23fc835320711e1c5c4a

(this sample)

  
Delivery method
Distributed via web download

Comments