MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a821f27fa55930b99d88cac3c4db9484d71b1767b63804ea2af5b32234da395a. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a821f27fa55930b99d88cac3c4db9484d71b1767b63804ea2af5b32234da395a
SHA3-384 hash: 52a84d484495e0709bdb72e84ea2c7a28b00448101c145f77301a8976ce162a3634270f54a485dbd038ad9ee88da6264
SHA1 hash: 8a163336fe501cece3e28488272c13fcb64ed098
MD5 hash: 7463a85bad8a96b1a3fc8991f5ad5349
humanhash: kilo-beer-tennis-seventeen
File name:nklspc
Download: download sample
Signature Mirai
Create hunting rule
File size:91'840 bytes
First seen:2026-01-28 11:34:29 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Rzfl2qzkyqMayP2+ICiZGU0w3Rv9/bI547ZbcwtGQnx:9QYbR21Zr59zJx7nx
TLSH T17B934A11ED792D27C5C0763A51E30A31F5B7439D26BC9A4F7DA31D8CDF14620322BAAA
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9885259-0
Create hunting rule

Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c1688038-e572-459b-89c4-c5fa90f1128e
Behavior Graph:
Download SVG
%3 guuid=e015bbba-1900-0000-cfeb-1527fd0b0000 pid=3069 /usr/bin/sudo guuid=c69e1cbd-1900-0000-cfeb-1527030c0000 pid=3075 /tmp/sample.bin guuid=e015bbba-1900-0000-cfeb-1527fd0b0000 pid=3069->guuid=c69e1cbd-1900-0000-cfeb-1527030c0000 pid=3075 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/34b88385-d609-4a6e-9416-a619769e4cc0
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1858890
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
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1858890 Sample: nklspc.elf Startdate: 28/01/2026 Architecture: LINUX Score: 64 24 178.243.36.244 TURKCELL-ASTurkcellASTR Turkey 2->24 26 178.243.36.245 TURKCELL-ASTurkcellASTR Turkey 2->26 28 100 other IPs or domains 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Connects to many IPs within the same subnet mask (likely port scanning) 2->32 34 Uses known network protocols on non-standard ports 2->34 8 nklspc.elf .systemd-journald 2->8         started        12 dash rm 2->12         started        14 dash cat 2->14         started        16 8 other processes 2->16 signatures3 process4 file5 22 /dev/shm/.systemd-journald, ELF 8->22 dropped 36 Drops invisible ELF files 8->36 38 Sample deletes itself 8->38 18 .systemd-journald 8->18         started        signatures6 process7 process8 20 .systemd-journald 18->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a821f27fa55930b99d88cac3c4db9484d71b1767b63804ea2af5b32234da395a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a821f27fa55930b99d88cac3c4db9484d71b1767b63804ea2af5b32234da395a/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-28 11:35:56 UTC
File Type:
ELF32 Big (Exe)
AV detection:
11 of 36 (30.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vaq7e75fleylthmizlb4jw4uqtlrwf3hwy4aj2rk6wzseng2hfna._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260128-nqbd6sdy9a/
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: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 a821f27fa55930b99d88cac3c4db9484d71b1767b63804ea2af5b32234da395a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739207/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3740299/

Comments