MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a21b648f1d04e6ab97325b875e6c259897c7ebb9b02466c974fb8152c367bd0e. 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: 6


Intelligence 6 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a21b648f1d04e6ab97325b875e6c259897c7ebb9b02466c974fb8152c367bd0e
SHA3-384 hash: 02a15ade0a70faa7e72a732f11a0cdc3d1b2d6fd980dff08ff975dd8ee388e3717512cff1f7847c3f69e4cf22863ceb0
SHA1 hash: 569dd74b285fa142df5b0bcef737f2ad442f9b3c
MD5 hash: cd8a8cc873db1b1cfd79a356989a98d5
humanhash: apart-winner-echo-football
File name:bukakke_arm
Download: download sample
Signature Mirai
Create hunting rule
File size:758'912 bytes
First seen:2026-01-19 16:08:07 UTC
Last seen:2026-01-19 16:29:54 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:cfpViLw9PLecnYq2aeCsJNGh28eWdif6MgpW6xlBPxekq8iGY84DV:cSLw9P/GyhjeWsfo3Fxekq8JY84D
TLSH T170F43A56F8809F62C5C1257AFA5F82B8731347B4C3EB720699189B343BD786B4F3A641
telfhash t1c801d3e4c47c9e0105d2db54e5ab446b4f58b24f0f394a9316b2d9982bb134d3793e3b
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
37
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gcc rust
Link:
https://www.filescan.io/uploads/696e571255805a763fe8f036/reports/4c626eee-3140-434a-864c-d62ef0547f7c/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5a3dc3d6-b709-419c-8e41-4d597ad770cc
Behavior Graph:
Download SVG
%3 guuid=9b760d28-1a00-0000-0d43-7aa970090000 pid=2416 /usr/bin/sudo guuid=833cef2a-1a00-0000-0d43-7aa974090000 pid=2420 /tmp/sample.bin guuid=9b760d28-1a00-0000-0d43-7aa970090000 pid=2416->guuid=833cef2a-1a00-0000-0d43-7aa974090000 pid=2420 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4ee14c1-0703-4209-b100-a365f1d3d11c
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1853503
Signature
Executes the "crontab" command typically for achieving persistence
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1853503 Sample: bukakke_arm.elf Startdate: 19/01/2026 Architecture: LINUX Score: 48 37 176.65.148.239, 54374, 8081 PALTEL-ASPALTELAutonomousSystemPS Germany 2->37 39 109.202.202.202, 80 INIT7CH Switzerland 2->39 41 2 other IPs or domains 2->41 10 bukakke_arm.elf 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        process3 process4 16 bukakke_arm.elf 10->16         started        process5 18 bukakke_arm.elf 16->18         started        process6 20 bukakke_arm.elf sh 18->20         started        22 bukakke_arm.elf 18->22         started        process7 24 sh crontab 20->24         started        28 sh 20->28         started        file8 35 /var/spool/cron/crontabs/tmp.mm2l42, ASCII 24->35 dropped 43 Sample tries to persist itself using cron 24->43 45 Executes the "crontab" command typically for achieving persistence 24->45 30 sh crontab 28->30         started        33 sh grep 28->33         started        signatures9 process10 signatures11 47 Executes the "crontab" command typically for achieving persistence 30->47
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a21b648f1d04e6ab97325b875e6c259897c7ebb9b02466c974fb8152c367bd0e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a21b648f1d04e6ab97325b875e6c259897c7ebb9b02466c974fb8152c367bd0e/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uinwjdy5attkxfzslodv43bftcl4p25zwasgnslu7oavfq3hxuha._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
credential_access discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260119-tlkpyagv2d/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads process memory
Creates/modifies Cron job
Enumerates running processes
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a973756c-4f26-4fe1-8714-e4700de6edda
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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:malwareelf55503
Create hunting rule
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 a21b648f1d04e6ab97325b875e6c259897c7ebb9b02466c974fb8152c367bd0e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3760340/
  
Delivery method
Distributed via web download

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