MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c51cfbab4108a4137c14967b0bca317fde7b6aba7a0ea705702f958528152e1. 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 6 File information Comments

SHA256 hash: 9c51cfbab4108a4137c14967b0bca317fde7b6aba7a0ea705702f958528152e1
SHA3-384 hash: 45409619aa471d5d037c3697188fa991d5bd9328ff1af484e672f09069b49996fe061df3e7a019dc9016dfdffa174b25
SHA1 hash: 4509ec67c0360e1de17ea620ea224882c5c70bde
MD5 hash: cb2c5367e7ddd5fe7a85dd0fdfebdcb7
humanhash: sweet-hydrogen-nevada-mountain
File name:shadow.x86
Download: download sample
Signature Mirai
File size:66'628 bytes
First seen:2025-12-30 18:13:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Tt9yUU0A1yHKexqXsgbktUcEpplQRsdo0:T6UU03HKexqXrbktUcEDlCMo
TLSH T14D533CC46903EAF0EC394171E0AAF73E47B6B13F0115E98FD79545B2E863A06974239D
telfhash t1dc11c4f60a5e489c67d06800c35e6e507dad6777512037e30673ad3462afe8a60afd3d
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

Intelligence


File Origin
# of uploads :
1
# of downloads :
42
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-30T15:20:00Z UTC
Last seen:
2025-12-31T00:22:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.fg HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ge HEUR:Backdoor.Linux.Mirai.gen
Status:
terminated
Behavior Graph:
%3 guuid=2795dc33-1700-0000-e9b8-a9b4cd0d0000 pid=3533 /usr/bin/sudo guuid=37b48235-1700-0000-e9b8-a9b4d40d0000 pid=3540 /tmp/sample.bin delete-file net guuid=2795dc33-1700-0000-e9b8-a9b4cd0d0000 pid=3533->guuid=37b48235-1700-0000-e9b8-a9b4d40d0000 pid=3540 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=37b48235-1700-0000-e9b8-a9b4d40d0000 pid=3540->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=6075b635-1700-0000-e9b8-a9b4d60d0000 pid=3542 /tmp/sample.bin write-file zombie guuid=37b48235-1700-0000-e9b8-a9b4d40d0000 pid=3540->guuid=6075b635-1700-0000-e9b8-a9b4d60d0000 pid=3542 clone guuid=4bb8cc35-1700-0000-e9b8-a9b4d70d0000 pid=3543 /tmp/sample.bin dns net send-data guuid=6075b635-1700-0000-e9b8-a9b4d60d0000 pid=3542->guuid=4bb8cc35-1700-0000-e9b8-a9b4d70d0000 pid=3543 clone guuid=4bb8cc35-1700-0000-e9b8-a9b4d70d0000 pid=3543->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 26B c610bf36-1f00-5bc3-ae18-24f0473b35c2 81.88.18.108:6767 guuid=4bb8cc35-1700-0000-e9b8-a9b4d70d0000 pid=3543->c610bf36-1f00-5bc3-ae18-24f0473b35c2 send: 11B guuid=2c08da35-1700-0000-e9b8-a9b4d90d0000 pid=3545 /tmp/sample.bin guuid=4bb8cc35-1700-0000-e9b8-a9b4d70d0000 pid=3543->guuid=2c08da35-1700-0000-e9b8-a9b4d90d0000 pid=3545 clone
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Performs DNS TXT record lookups
Sample deletes itself
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1842204 Sample: shadow.x86.elf Startdate: 30/12/2025 Architecture: LINUX Score: 64 22 kurol.io 2->22 24 81.88.18.108, 34712, 6767 LEVEL3US Germany 2->24 26 4 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 9 shadow.x86.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 32 Performs DNS TXT record lookups 22->32 process4 signatures5 34 Sample deletes itself 9->34 16 shadow.x86.elf 9->16         started        process6 process7 18 shadow.x86.elf 16->18         started        process8 20 shadow.x86.elf 18->20         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-30 18:14:11 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery linux upx
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Deletes itself
Modifies Watchdog functionality
Unexpected DNS network traffic destination
Creates a large amount of network flows
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-1
YARA:
Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
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_Trojan_Mirai_5f7b67b8
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 9c51cfbab4108a4137c14967b0bca317fde7b6aba7a0ea705702f958528152e1

(this sample)

  
Delivery method
Distributed via web download

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