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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2
SHA3-384 hash: 8067a322c30af82eb2f7e38ddeab4d5b2cb40223cd7829026a01cfa521f46f7b3733dd77d4b6bed101edf6b6c98dbbca
SHA1 hash: 0399d9ae839e3046522cfcd6f2d9e2a0c616af36
MD5 hash: a7b367d4e87624e7c029c63b74ce4b72
humanhash: helium-vermont-white-hot
File name:nklsh4
Download: download sample
Signature Mirai
Create hunting rule
File size:67'624 bytes
First seen:2025-12-17 17:13:07 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:cJSJeaeb+CjEL4ObkiDLj8UCdgI0CsXvEanQbVR:cxaeiGvOgiDVCdghRflnQ
TLSH T1B5639E2AD829AD54CD6862B0B4B1DBB59B13700087571EFB99AAC9718003D9CF64DBFC
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 gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

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

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-17T18:51:00Z UTC
Last seen:
2025-12-17T19:39:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5f1ffa03-1552-4506-910d-94bb5a2d6c88
Behavior Graph:
Download SVG
%3 guuid=515d798f-1900-0000-df3a-dd86380c0000 pid=3128 /usr/bin/sudo guuid=7bbcb591-1900-0000-df3a-dd86410c0000 pid=3137 /tmp/sample.bin guuid=515d798f-1900-0000-df3a-dd86380c0000 pid=3128->guuid=7bbcb591-1900-0000-df3a-dd86410c0000 pid=3137 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/36a3bb9b-8f33-4057-8f11-11337ab1ed80
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1834997
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Sample scans a subnet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1834997 Sample: nklsh4.elf Startdate: 17/12/2025 Architecture: LINUX Score: 60 19 187.17.124.184 UniversoOnlineSABR Brazil 2->19 21 187.17.124.185 UniversoOnlineSABR Brazil 2->21 23 100 other IPs or domains 2->23 25 Multi AV Scanner detection for submitted file 2->25 27 Connects to many IPs within the same subnet mask (likely port scanning) 2->27 29 Connects to many ports of the same IP (likely port scanning) 2->29 31 Sample scans a subnet 2->31 9 nklsh4.elf 2->9         started        signatures3 process4 process5 11 nklsh4.elf 9->11         started        process6 13 nklsh4.elf 11->13         started        15 nklsh4.elf 11->15         started        process7 17 nklsh4.elf 13->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-12-17 17:13:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 23 (43.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=drmwxgvbxbujslw6qozt4ccdlervgaqqg72kb5m2rh2oyuauwora._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251217-vrjv9sxmd1/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/94205bb1-eb8a-465d-9d7d-219a7961e3da
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/1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2

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 1c596b9aa1b868992ede83b33e0843592353021037f4a0f59a89f4ec5014b3a2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3726525/
  
Delivery method
Distributed via web download

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