MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f
SHA3-384 hash: d7a933306a5c4a636d0b99538dc6ba9659db1e869d4a7f19ffa49d5f2ec9ca89e6656a792168eaa441503cf677d5095a
SHA1 hash: 702af753bb5020310d0be7fe8292bd82e498bce9
MD5 hash: 22eca17be23bb1a98d61866cb7efa0e4
humanhash: illinois-bravo-triple-bulldog
File name:Yboats.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:136'792 bytes
First seen:2025-12-03 11:23:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:RTxXJ1yWq7nVbWjkCeiejPjtpECezad4N5a7h+DOF/:RTNJ1yWqTCePLHIzaeN5iV
TLSH T145D32A86B8D18F11C6C526BBFA1E018E332657BCE2EFB1039D245F2427CA56B0E3B555
telfhash t10c410127ff981fac2bd74494a15d6259a6e534dd17242897cd5c4b5f8543ec3700dc23
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 f84f8b4138a358e78abb908367a1ff6f20c3b256939ff7e9daeeebc332064992
File size (compressed) :48'700 bytes
File size (de-compressed) :136'792 bytes
Format:linux/arm
Packed file: f84f8b4138a358e78abb908367a1ff6f20c3b256939ff7e9daeeebc332064992

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
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
Detection(s):
Sanesecurity.Malware.29502.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30442.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135870-0
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Dropper.Mirai-7135980-0
Create hunting rule

Unix.Dropper.Mirai-7171384-0
Create hunting rule

Unix.Dropper.Mirai-7355719-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Unix.Trojan.Gafgyt-6748839-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/69301ddf979e53a83592e53c/reports/0778c20a-67de-4a9c-94fb-9319e4199ec3/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Exploit.Linux.Mvpower.a HEUR:Exploit.Linux.CVE-2014-8361.a HEUR:Backdoor.Linux.Mirai.es HEUR:Exploit.Linux.Zyxel.c HEUR:Exploit.Linux.DLink.b HEUR:Exploit.Linux.CVE-2018-10561.a HEUR:Exploit.Linux.CVE-2017-17215.a HEUR:Backdoor.Linux.Mirai.ii HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Mirai.ad
Link:
https://opentip.kaspersky.com/fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f/results?tab=lookup
Gathering data
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1825281
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7q46atyfsm52kjustdtguid64rh2joizyyroxjpi2wnzjg3ujghq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable
Link:
https://tria.ge/reports/251203-nhsy9aylak/
Malware Config
C2 Extraction:
cnc.504.su
scan.504.su
Verdict:
Malicious
Tags:
botnet mirai Unix.Dropper.Mirai-7135870-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_1
Link:
https://app.threat.zone/submission/296ca605-3d84-4045-b3cc-f1da26dbff79
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/fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Generic_Threat_d2dca9e7
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_1_RID2F39
Create hunting rule
Author:Florian Roth
Description:Detects ELF Mirai variant
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 f84f8b4138a358e78abb908367a1ff6f20c3b256939ff7e9daeeebc332064992

Mirai

elf fc39e04f05933ba5269298e66a207ee44fa4b919c622eba5e8d59b949b74498f

(this sample)

  
Dropped by
SHA256 f84f8b4138a358e78abb908367a1ff6f20c3b256939ff7e9daeeebc332064992
  
URLhaus
https://urlhaus.abuse.ch/url/3723973/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 ef46d743f03b01ce595f5addc3415765

Comments