MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d763d962556094f1524a6e3202365c6d7611c4988772e5f26f136cd19becdc2. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 5d763d962556094f1524a6e3202365c6d7611c4988772e5f26f136cd19becdc2
SHA3-384 hash: 39cabdb0c4140a87bec7ff037748c49a47f4553e4e42da237f81db4edaaf3a55f83e678eea7abb4b6cfab2e03c87c8bd
SHA1 hash: efba039db6ea4b38ca1925140abd0bcb67c46dda
MD5 hash: a091d81a8ed2ea1f27cf8bf1dd7c74df
humanhash: quebec-steak-july-mars
File name:sumrak.x86_64
Download: download sample
Signature Mirai
File size:53'584 bytes
First seen:2025-12-20 16:57:00 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:lstQRkXV6a9oEjRPwlQ1De5+LKTPMl9zJfy+05E7RzjMg8ohmPU3P9U3x0XH:lstY064oGalKLKz1+0W7RjR8ohmPJWH
TLSH T11D3302333363E2BCC4BE55B71E956A42B18D3D4A9682035B50FE6A5C2EF243501596F3
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
File size (compressed) :53'584 bytes
File size (de-compressed) :142'088 bytes
Format:linux/amd64
Unpacked file: b56a021277bb2c19a1eaa4ed30cedcbae44dedccb396b3879406e980db91274f

Intelligence


File Origin
# of uploads :
1
# of downloads :
40
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-12-20T14:06:00Z UTC
Last seen:
2025-12-21T12:48:00Z UTC
Hits:
~100
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Status:
terminated
Behavior Graph:
%3 guuid=bd5ab099-1b00-0000-9dab-9201a10c0000 pid=3233 /usr/bin/sudo guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240 /tmp/sample.bin mprotect-exec net guuid=bd5ab099-1b00-0000-9dab-9201a10c0000 pid=3233->guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=8dbb079d-1b00-0000-9dab-9201a90c0000 pid=3241 /tmp/sample.bin guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240->guuid=8dbb079d-1b00-0000-9dab-9201a90c0000 pid=3241 clone guuid=8a231a9d-1b00-0000-9dab-9201aa0c0000 pid=3242 /tmp/sample.bin zombie guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240->guuid=8a231a9d-1b00-0000-9dab-9201aa0c0000 pid=3242 clone guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243 /tmp/sample.bin net send-data zombie guuid=8265cc9b-1b00-0000-9dab-9201a80c0000 pid=3240->guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243 clone guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 6081b4f2-a8f4-54a6-ad7c-2654ee0f2625 141.98.10.91:19000 guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243->6081b4f2-a8f4-54a6-ad7c-2654ee0f2625 send: 300B guuid=490f669d-1b00-0000-9dab-9201ac0c0000 pid=3244 /tmp/sample.bin guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243->guuid=490f669d-1b00-0000-9dab-9201ac0c0000 pid=3244 clone guuid=3fa96c9d-1b00-0000-9dab-9201ad0c0000 pid=3245 /tmp/sample.bin guuid=bccd2d9d-1b00-0000-9dab-9201ab0c0000 pid=3243->guuid=3fa96c9d-1b00-0000-9dab-9201ad0c0000 pid=3245 clone
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1836790 Sample: sumrak.x86_64.elf Startdate: 20/12/2025 Architecture: LINUX Score: 60 20 141.98.10.91, 19000, 36220, 36222 HOSTBALTICLT Lithuania 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Sample is packed with UPX 2->26 8 sumrak.x86_64.elf 2->8         started        signatures3 process4 process5 10 sumrak.x86_64.elf 8->10         started        12 sumrak.x86_64.elf 8->12         started        14 sumrak.x86_64.elf 8->14         started        process6 16 sumrak.x86_64.elf 10->16         started        18 sumrak.x86_64.elf 10->18         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-20 14:08:34 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:unst botnet defense_evasion discovery linux upx
Behaviour
Reads runtime system information
Enumerates running processes
Modifies Watchdog functionality
Mirai
Mirai family
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_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Author:RandomMalware

File information


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

Web download

Mirai

elf 5d763d962556094f1524a6e3202365c6d7611c4988772e5f26f136cd19becdc2

(this sample)

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