MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36
SHA3-384 hash: b2671a5e3fd8ae771d72bb7d3b214a24f06f5feb785e757b5e9aa9c247881728ae0b8d34b61a6b1111bff50e26d8d5a9
SHA1 hash: 649dae76c4a869ae84c71874887198cf431bf874
MD5 hash: 04a4bf4e63cf6fa95dddf048f3d559d4
humanhash: tennis-cat-march-north
File name:nklm68k
Download: download sample
Signature Mirai
Create hunting rule
File size:87'304 bytes
First seen:2026-01-25 20:47:13 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:zv1l2oWJL0fca6NC+R4M+5IdTfFhhCkkLDFITilBr8J9CCk:z1l21YP6NKOTfLUxD2Til2tk
TLSH T12E833AA6B410DC7EF45BE7B780031A16B121A3F54E426F277627FD67DE2E1682822D42
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-6981989-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-9940650-0
Create hunting rule

Unix.Trojan.Mirai-10018298-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6976815b5db9ae47709165eb/reports/f712164d-2357-41a8-a031-d0a1d5fc4754/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/53be62e1-5ac4-4569-8f4c-eec16aad82e5
Behavior Graph:
Download SVG
%3 guuid=fbfccadb-1600-0000-aba5-5ae0aa0d0000 pid=3498 /usr/bin/sudo guuid=ce9ab2dd-1600-0000-aba5-5ae0b00d0000 pid=3504 /tmp/sample.bin guuid=fbfccadb-1600-0000-aba5-5ae0aa0d0000 pid=3498->guuid=ce9ab2dd-1600-0000-aba5-5ae0b00d0000 pid=3504 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c00aa1d4-2f74-47a5-b038-ac826e2beaf3
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1857272
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857272 Sample: nklm68k.elf Startdate: 25/01/2026 Architecture: LINUX Score: 60 22 171.80.13.100 CHINANET-BACKBONENo31Jin-rongStreetCN China 2->22 24 171.80.13.106, 23 CHINANET-BACKBONENo31Jin-rongStreetCN China 2->24 26 100 other IPs or domains 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Connects to many IPs within the same subnet mask (likely port scanning) 2->30 8 nklm68k.elf .systemd-journald 2->8         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 process4 file5 20 /dev/shm/.systemd-journald, ELF 8->20 dropped 32 Drops invisible ELF files 8->32 34 Sample deletes itself 8->34 16 .systemd-journald 8->16         started        signatures6 process7 process8 18 .systemd-journald 16->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-25 20:47:34 UTC
File Type:
ELF32 Big (Exe)
AV detection:
10 of 36 (27.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fsyz6qkr4cil4ps4o5htp6inxky7lxe3edlcavsunjqsvcf35y3a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260125-zk2jysgw9c/
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/2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 2cb19f4151e090be3e5c774f37f90dbab1f5dc9b20d62056546a612a88bbee36

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3740304/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739196/

Comments