MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4. 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: 11


Intelligence 11 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4
SHA3-384 hash: af1e5b918e1b58e7ebe3ed9005d96ebbe78f93ddb01f4adef517110f65cd185fd145f707214e08a4282084c734c0e4b7
SHA1 hash: c4503a0098209d6990ce21fe32660e95281db17d
MD5 hash: 301939a4be2ea310e864b97d4c98492c
humanhash: seven-black-summer-lamp
File name:morte.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:71'824 bytes
First seen:2026-02-21 07:30:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:OtlZD4krzJx/JE8xNPLjQs633/xgAMInc7WM0TabX:OnmkrXpxpLX633Jg3QI+K
TLSH T182636BC2AB43C0F4E8261171607BF7726A72E53A1069DF87D729D831ED53A02D66A3DC
telfhash t1c931d4f70ebe1deab3d8ac40c35d1fe62d69ea3b156076900533886522e3f8144b9c39
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 ac1d812b2df6a55e4626d79960bdc623cc3010d596f42609d3b18d297cdf93e3
File size (compressed) :38'960 bytes
File size (de-compressed) :71'824 bytes
Format:linux/i386
Packed file: ac1d812b2df6a55e4626d79960bdc623cc3010d596f42609d3b18d297cdf93e3

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/283439e7-0869-4b54-a10f-f8302c7e9fff/
Detection(s):
Unix.Trojan.Mirai-10058922-0
Create hunting rule

Unix.Trojan.Mirai-10059005-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
Link:
https://opentip.kaspersky.com/ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/434196e2-fd4a-430e-8974-dc83cce910e7
Behavior Graph:
Download SVG
%3 guuid=a38e5ecc-1d00-0000-cfa0-c75d97090000 pid=2455 /usr/bin/sudo guuid=c67fefcd-1d00-0000-cfa0-c75d9b090000 pid=2459 /tmp/sample.bin net guuid=a38e5ecc-1d00-0000-cfa0-c75d97090000 pid=2455->guuid=c67fefcd-1d00-0000-cfa0-c75d9b090000 pid=2459 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=c67fefcd-1d00-0000-cfa0-c75d9b090000 pid=2459->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=960814ce-1d00-0000-cfa0-c75d9d090000 pid=2461 /tmp/sample.bin guuid=c67fefcd-1d00-0000-cfa0-c75d9b090000 pid=2459->guuid=960814ce-1d00-0000-cfa0-c75d9d090000 pid=2461 clone guuid=a3fa24ce-1d00-0000-cfa0-c75d9e090000 pid=2462 /tmp/sample.bin write-config zombie guuid=960814ce-1d00-0000-cfa0-c75d9d090000 pid=2461->guuid=a3fa24ce-1d00-0000-cfa0-c75d9e090000 pid=2462 clone guuid=4b319dd1-1d00-0000-cfa0-c75daa090000 pid=2474 /usr/bin/dash guuid=a3fa24ce-1d00-0000-cfa0-c75d9e090000 pid=2462->guuid=4b319dd1-1d00-0000-cfa0-c75daa090000 pid=2474 execve guuid=16fa2bd4-1d00-0000-cfa0-c75db4090000 pid=2484 /tmp/sample.bin delete-file dns net send-data guuid=a3fa24ce-1d00-0000-cfa0-c75d9e090000 pid=2462->guuid=16fa2bd4-1d00-0000-cfa0-c75db4090000 pid=2484 clone guuid=cec623d2-1d00-0000-cfa0-c75dac090000 pid=2476 /usr/bin/cp guuid=4b319dd1-1d00-0000-cfa0-c75daa090000 pid=2474->guuid=cec623d2-1d00-0000-cfa0-c75dac090000 pid=2476 execve guuid=16fa2bd4-1d00-0000-cfa0-c75db4090000 pid=2484->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 4930B 80245be9-b83b-5cc1-bdae-c6279c7a7863 87.121.84.49:1337 guuid=16fa2bd4-1d00-0000-cfa0-c75db4090000 pid=2484->80245be9-b83b-5cc1-bdae-c6279c7a7863 send: 406B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/37593c86-4337-4b44-85ba-a7a6b7fe05fb
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-02-21 07:31:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=546pjfby73kweqyztv73wliigc5rkwswle2ph2rlmjwzdfmyblca._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery linux persistence
Link:
https://tria.ge/reports/260221-jcg8cadv9g/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Deletes itself
Mirai
Mirai family
Malware Config
C2 Extraction:
last.galaxias.cc
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
Link:
https://yomi.yoroi.company/submissions/ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
Create hunting rule
Author:Elastic Security
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 ac1d812b2df6a55e4626d79960bdc623cc3010d596f42609d3b18d297cdf93e3

Mirai

elf ef3cf49438fed56243199d7fbb2d0830bb155a565934f3ea2b626d9195980ac4

(this sample)

  
Dropped by
SHA256 ac1d812b2df6a55e4626d79960bdc623cc3010d596f42609d3b18d297cdf93e3
  
Dropped by
MD5 cee813b9f8f516bc1675a27bcf9dc791
  
URLhaus
https://urlhaus.abuse.ch/url/3782192/
  
Delivery method
Distributed via web download

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