MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc. 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: 13


Intelligence 13 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc
SHA3-384 hash: d9bf3de9d19ae3ebc56df2e3f42fcdb6934a86e6237c046217c8d60980baa1f08e3f0e76da7baa457f821447a9721999
SHA1 hash: ffaf116f924449964a2cc708a3e815f42d45c999
MD5 hash: 57c06033b11047826d05fc02c14c8fc4
humanhash: batman-hawaii-seventeen-georgia
File name:Nexus.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:104'272 bytes
First seen:2025-11-18 07:41:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:HItgsGWRLiWWteeU5DJDHx5un0o8Q4rS8y4RUFv0C:HOVGWRLiWWteeU5DJDHx5DxIqC
TLSH T18DA33B47F98181FDC19AC078577FB53AD822B5EE023CB2A767D4BF222D49E600E19C95
telfhash t1cb21497538d238c841d38bbab60ffad1e97206500ae071a19f6bbe638f5bf844d01412
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 mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 f2b46710dad6647422664f17aa17fe342ff0bfa5891b02e28446c17f8b5ff56e
File size (compressed) :44'260 bytes
File size (de-compressed) :104'272 bytes
Format:linux/amd64
Packed file: f2b46710dad6647422664f17aa17fe342ff0bfa5891b02e28446c17f8b5ff56e

Intelligence

File Origin
# of uploads :
1
# of downloads :
52
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-6976991-0
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/691c236ac7c8f1cf941bbbf9/reports/3bb98073-e4fa-43b9-b662-60b6956ba196/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
45
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-11-18T05:49:00Z UTC
Last seen:
2025-11-18T06:29:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1cd39de0-75c9-479f-9cba-b52ee04643e3
Behavior Graph:
Download SVG
%3 guuid=a0f9b6b2-1a00-0000-9927-de43c6090000 pid=2502 /usr/bin/sudo guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511 /tmp/sample.bin net guuid=a0f9b6b2-1a00-0000-9927-de43c6090000 pid=2502->guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=51e118b5-1a00-0000-9927-de43d0090000 pid=2512 /tmp/sample.bin guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511->guuid=51e118b5-1a00-0000-9927-de43d0090000 pid=2512 clone guuid=567d93df-1b00-0000-9927-de435c0c0000 pid=3164 /tmp/sample.bin guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511->guuid=567d93df-1b00-0000-9927-de435c0c0000 pid=3164 clone guuid=9d5f99df-1b00-0000-9927-de435e0c0000 pid=3166 /tmp/sample.bin net send-data zombie guuid=26f0feb4-1a00-0000-9927-de43cf090000 pid=2511->guuid=9d5f99df-1b00-0000-9927-de435e0c0000 pid=3166 clone guuid=0d6639b5-1a00-0000-9927-de43d2090000 pid=2514 /tmp/sample.bin zombie guuid=51e118b5-1a00-0000-9927-de43d0090000 pid=2512->guuid=0d6639b5-1a00-0000-9927-de43d2090000 pid=2514 clone guuid=4f2341b5-1a00-0000-9927-de43d3090000 pid=2515 /tmp/sample.bin net send-data zombie guuid=51e118b5-1a00-0000-9927-de43d0090000 pid=2512->guuid=4f2341b5-1a00-0000-9927-de43d3090000 pid=2515 clone d26013ca-142d-59b1-824a-844e0447f29f 185.18.222.17:3778 guuid=4f2341b5-1a00-0000-9927-de43d3090000 pid=2515->d26013ca-142d-59b1-824a-844e0447f29f send: 2B guuid=9d5f99df-1b00-0000-9927-de435e0c0000 pid=3166->d26013ca-142d-59b1-824a-844e0447f29f send: 2B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/632f8a4e-eb7a-4164-91b1-ffeb968af502
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1815854
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1815854 Sample: Nexus.x86_64.elf Startdate: 18/11/2025 Architecture: LINUX Score: 80 20 185.18.222.17, 3778 THE-INTERNET-GROUPGB Ireland 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 Nexus.x86_64.elf 2->8         started        signatures3 process4 process5 10 Nexus.x86_64.elf 8->10         started        12 Nexus.x86_64.elf 8->12         started        14 Nexus.x86_64.elf 8->14         started        process6 16 Nexus.x86_64.elf 10->16         started        18 Nexus.x86_64.elf 10->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 07:42:35 UTC
File Type:
ELF64 Little (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zfa7epieb7lys3o6wh5kltcgrq2cshiyxmmcoxzlumuuhf2srd6a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd defense_evasion discovery linux
Link:
https://tria.ge/reports/251118-jjxxda1mh1/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
botnet mirai trojan gafgyt Unix.Trojan.Mirai-6976991-0
YARA:
Mirai_Botnet_Malware Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_520deeb8 Linux_Trojan_Mirai_6a77af0f Linux_Trojan_Mirai_01e4a728 Linux_Trojan_Mirai_e0cf29e2 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/260fb8c5-be96-44a7-bfad-7abf30f53723
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c941f23d040f/report/overview.html
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/c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_01e4a728
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_520deeb8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Create hunting rule
Author:Elastic Security
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 f2b46710dad6647422664f17aa17fe342ff0bfa5891b02e28446c17f8b5ff56e

Mirai

elf c941f23d040fd7896ddeb1faa5cc468c34291d18bb18275f2ba32943975288fc

(this sample)

  
Dropped by
SHA256 f2b46710dad6647422664f17aa17fe342ff0bfa5891b02e28446c17f8b5ff56e
  
Dropped by
MD5 a09aece205065a39cad8691d867be27f
  
URLhaus
https://urlhaus.abuse.ch/url/3711015/
  
Delivery method
Distributed via web download

Comments