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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d. 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: 10


Intelligence 10 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d
SHA3-384 hash: 4922e42ea593a2861a506ad5158af2b7ba70fe247e2c13c21c25702e8f530102d5bcc478062697f2afd253cdd30ba4ce
SHA1 hash: b1a57a59ffc24b71686f80fe9b1936f03ca6ae99
MD5 hash: 3f88b0ecae1e0fbccc613fef1eaed2ff
humanhash: robin-diet-minnesota-pasta
File name:Demon.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:78'844 bytes
First seen:2025-08-21 17:47:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:HxK+uRPlx9YYQCc3zGq1XMGtfOcUUUgcB1kdvMjAI:HxK+uRPlwMXhB0EEI
TLSH T164731742BC829A23C6D4137AF66E55CD372173E9E2DE321BCE211F1036C991F0D6BA91
telfhash t123b012718bb40d7f73c8828391de13300f54fe5a0ac331e2419439ec848b013e02ed22
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 4d81de82c2ae6dabdf3504a06d3c7ccbc0e07be34453e931511e2474f62eca52
File size (compressed) :29'540 bytes
File size (de-compressed) :78'844 bytes
Format:linux/arm
Packed file: 4d81de82c2ae6dabdf3504a06d3c7ccbc0e07be34453e931511e2474f62eca52

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
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

Unix.Dropper.Mirai-7136013-0
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.Trojan.Mirai-10011027-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
botnet mirai
Link:
https://www.filescan.io/uploads/68a75c864a87ed7967673ff6/reports/8fc9afe0-c793-4499-943c-fd0c0283a02a/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-08-21T16:09:00Z UTC
Last seen:
2025-08-21T16:09:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c9ca8be2-35d2-4214-8b00-dc39af457a3b
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1762298
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1762298 Sample: Demon.arm.elf Startdate: 21/08/2025 Architecture: LINUX Score: 84 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 89.187.28.175, 3778, 41906 UA-WICOMWiMAXUkraineAutonomousSystemUA Ukraine 2->26 28 daisy.ubuntu.com 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected Mirai 2->36 7 dash rm Demon.arm.elf 2->7         started        9 xfce4-panel wrapper-2.0 2->9         started        11 dash rm 2->11         started        13 16 other processes 2->13 signatures3 process4 process5 15 Demon.arm.elf 7->15         started        18 Demon.arm.elf 7->18         started        20 Demon.arm.elf 7->20         started        22 wrapper-2.0 xfpm-power-backlight-helper 9->22         started        signatures6 38 Sample tries to kill multiple processes (SIGKILL) 15->38
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 17:51:45 UTC
File Type:
ELF32 Little (Exe)
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=57g6m43zz66qpvzh4uuzticxmety6m2tzmsmyyemzdf5so2wvm6q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd defense_evasion discovery
Link:
https://tria.ge/reports/250821-we4kkswmz5/
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.Dropper.Mirai-7136013-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_2 Mirai_Botnet_Malware Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_ea92cca8 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/6c10865e-ad56-4113-8eeb-2750a3cffb32
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/efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
Reference:Internal Research
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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4d81de82c2ae6dabdf3504a06d3c7ccbc0e07be34453e931511e2474f62eca52

Mirai

elf efcde67379cfbd07d727e52999a05761278f3353cb24cc608cc8cbd93b56ab3d

(this sample)

  
Dropped by
SHA256 4d81de82c2ae6dabdf3504a06d3c7ccbc0e07be34453e931511e2474f62eca52
  
URLhaus
https://urlhaus.abuse.ch/url/3608161/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3608185/
  
Dropped by
MD5 44ab477c4edc2c49a8d5ab34ba3cdb2b

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