MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40c6d0202955fdca44101b8ee796757667233528e3ce701d33ec1ff765a6acfa. 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 2 File information Comments

SHA256 hash: 40c6d0202955fdca44101b8ee796757667233528e3ce701d33ec1ff765a6acfa
SHA3-384 hash: d41bc10ec225e5e3eae5bce199a4d0209e724181d3d29ea03fc2c4a493cb9f54089761a33530320b5844e474accddb11
SHA1 hash: 8104501f7ba59d8a4810a25a2b7a1dedf2bc7384
MD5 hash: ffd6752f799e85983fdb2245e32d3cbc
humanhash: eleven-princess-bluebird-ohio
File name:shadow.arm5n
Download: download sample
Signature Mirai
File size:76'360 bytes
First seen:2025-12-30 17:10:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:T9n85NFmPaAJdAW9TKWZwMzzPwFDTpezgIoIOvQ9GD19nKMgvk+RrNoZdZn8T5ET:pncFJIAWNNfPwNssYOzDBgvk5d1RO
TLSH T1F373C652B8859107C9D8A2F7F31E119E331513B8D2EB3303AC366B613689D5F0EA7E59
telfhash t1f541bb1bafb40f9c27e90245c1dea42667ec31580e09696399ad2f4bcd83752f03e427
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
53
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai obfuscated rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-30T15:48:00Z UTC
Last seen:
2025-12-31T00:22:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=18c3bd01-1800-0000-ddc5-16dfeb0b0000 pid=3051 /usr/bin/sudo guuid=b7ca0204-1800-0000-ddc5-16dff40b0000 pid=3060 /tmp/sample.bin guuid=18c3bd01-1800-0000-ddc5-16dfeb0b0000 pid=3051->guuid=b7ca0204-1800-0000-ddc5-16dff40b0000 pid=3060 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Signature
Multi AV Scanner detection for submitted file
Performs DNS TXT record lookups
Sample deletes itself
Sends malformed DNS queries
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1842185 Sample: shadow.arm5n.elf Startdate: 30/12/2025 Architecture: LINUX Score: 68 22 H. [malformed] 2->22 24 kurol.io 2->24 26 4 other IPs or domains 2->26 28 Suricata IDS alerts for network traffic 2->28 30 Multi AV Scanner detection for submitted file 2->30 9 shadow.arm5n.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 32 Sends malformed DNS queries 22->32 34 Performs DNS TXT record lookups 24->34 process4 signatures5 36 Sample deletes itself 9->36 16 shadow.arm5n.elf 9->16         started        process6 process7 18 shadow.arm5n.elf 16->18         started        process8 20 shadow.arm5n.elf 18->20         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-30 17:11:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-1
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Linux_Generic_Threat_d94e1020
Author:Elastic Security
Rule name:unixredflags3
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 40c6d0202955fdca44101b8ee796757667233528e3ce701d33ec1ff765a6acfa

(this sample)

  
Delivery method
Distributed via web download

Comments