MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a64df1d17f7c1575c62efe35fa466d6217cddb6b813ea9fc7039b3a451326c93. 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 11 File information Comments

SHA256 hash: a64df1d17f7c1575c62efe35fa466d6217cddb6b813ea9fc7039b3a451326c93
SHA3-384 hash: e408818bb62946a7d3d745625fa086c1a6a3bda0bfd131fc9d852bfd17038210e29b9f25b384411b42afe41dd080b672
SHA1 hash: ae7b3051d1f4c531937da1ad148f485179f8fb0b
MD5 hash: 9d5998d04301a0038204e03dd217dbb7
humanhash: oscar-mockingbird-magnesium-seven
File name:x86_32.urbotnetisass
Download: download sample
Signature Mirai
File size:166'764 bytes
First seen:2025-09-12 07:36:41 UTC
Last seen:2025-09-12 13:10:29 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:LgJZAfxdlPjEI6uGvOOvTXX6te2mFJwtzj41YIKrm0Qz82hP5RA:LAAJIvOOvTXKTdK0U8a5RA
TLSH T1ECF36C46DA43D1F0F997017115E783164A72EA351037EA82E7B52E31EC6A601E71FBBC
telfhash t1c47159f72e7a1aec73d49903970b2b11ee09967b282431b946b326d832f7a415371cb5
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 :
2
# of downloads :
34
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
Creating a file
Runs as daemon
Unmounts file systems
Collects information on the network activity
Mounts file systems
Opens a port
Kills processes
Deletes a file
Connection attempt
Deletes a system binary file
Substitutes an application name
Writes files to system directory
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-12T03:32:00Z UTC
Last seen:
2025-09-12T03:32:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Status:
terminated
Behavior Graph:
%3 guuid=fcbe480b-1700-0000-0215-4769a60d0000 pid=3494 /usr/bin/sudo guuid=a8cf3a0d-1700-0000-0215-4769aa0d0000 pid=3498 /tmp/sample.bin guuid=fcbe480b-1700-0000-0215-4769a60d0000 pid=3494->guuid=a8cf3a0d-1700-0000-0215-4769aa0d0000 pid=3498 execve guuid=17c48a0d-1700-0000-0215-4769ab0d0000 pid=3499 /tmp/sample.bin delete-file net write-file zombie guuid=a8cf3a0d-1700-0000-0215-4769aa0d0000 pid=3498->guuid=17c48a0d-1700-0000-0215-4769ab0d0000 pid=3499 clone 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=17c48a0d-1700-0000-0215-4769ab0d0000 pid=3499->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=8fa3fc0f-1700-0000-0215-4769b10d0000 pid=3505 /tmp/sample.bin guuid=17c48a0d-1700-0000-0215-4769ab0d0000 pid=3499->guuid=8fa3fc0f-1700-0000-0215-4769b10d0000 pid=3505 clone guuid=06c90410-1700-0000-0215-4769b20d0000 pid=3506 /tmp/sample.bin guuid=17c48a0d-1700-0000-0215-4769ab0d0000 pid=3499->guuid=06c90410-1700-0000-0215-4769b20d0000 pid=3506 clone guuid=0a520b11-1700-0000-0215-4769b50d0000 pid=3509 /tmp/sample.bin net send-data guuid=8fa3fc0f-1700-0000-0215-4769b10d0000 pid=3505->guuid=0a520b11-1700-0000-0215-4769b50d0000 pid=3509 clone guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507 /tmp/sample.bin delete-file guuid=06c90410-1700-0000-0215-4769b20d0000 pid=3506->guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507 clone guuid=77800666-1900-0000-0215-476975140000 pid=5237 /tmp/sample.bin delete-file guuid=06c90410-1700-0000-0215-4769b20d0000 pid=3506->guuid=77800666-1900-0000-0215-476975140000 pid=5237 clone guuid=e289de1b-1700-0000-0215-4769cd0d0000 pid=3533 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=e289de1b-1700-0000-0215-4769cd0d0000 pid=3533 clone guuid=f4cce81b-1700-0000-0215-4769cf0d0000 pid=3535 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=f4cce81b-1700-0000-0215-4769cf0d0000 pid=3535 clone guuid=66f6ed1b-1700-0000-0215-4769d00d0000 pid=3536 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=66f6ed1b-1700-0000-0215-4769d00d0000 pid=3536 clone guuid=4485f31b-1700-0000-0215-4769d10d0000 pid=3537 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=4485f31b-1700-0000-0215-4769d10d0000 pid=3537 clone guuid=ab3bf91b-1700-0000-0215-4769d20d0000 pid=3538 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=ab3bf91b-1700-0000-0215-4769d20d0000 pid=3538 clone guuid=bd06ff1b-1700-0000-0215-4769d30d0000 pid=3539 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=bd06ff1b-1700-0000-0215-4769d30d0000 pid=3539 clone guuid=2626041c-1700-0000-0215-4769d40d0000 pid=3540 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=2626041c-1700-0000-0215-4769d40d0000 pid=3540 clone guuid=abfb081c-1700-0000-0215-4769d50d0000 pid=3541 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=abfb081c-1700-0000-0215-4769d50d0000 pid=3541 clone guuid=e75c0e1c-1700-0000-0215-4769d60d0000 pid=3542 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=e75c0e1c-1700-0000-0215-4769d60d0000 pid=3542 clone guuid=485d141c-1700-0000-0215-4769d70d0000 pid=3543 /tmp/sample.bin guuid=78481e10-1700-0000-0215-4769b30d0000 pid=3507->guuid=485d141c-1700-0000-0215-4769d70d0000 pid=3543 clone 3c219693-211f-5894-b9fe-a6c2d41f8f1c 94.154.35.153:43212 guuid=0a520b11-1700-0000-0215-4769b50d0000 pid=3509->3c219693-211f-5894-b9fe-a6c2d41f8f1c send: 5406B guuid=d5a036e8-1900-0000-0215-47697b140000 pid=5243 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=d5a036e8-1900-0000-0215-47697b140000 pid=5243 clone guuid=14eb3ae8-1900-0000-0215-47697c140000 pid=5244 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=14eb3ae8-1900-0000-0215-47697c140000 pid=5244 clone guuid=761240e8-1900-0000-0215-47697d140000 pid=5245 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=761240e8-1900-0000-0215-47697d140000 pid=5245 clone guuid=c93245e8-1900-0000-0215-47697e140000 pid=5246 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=c93245e8-1900-0000-0215-47697e140000 pid=5246 clone guuid=b1c748e8-1900-0000-0215-47697f140000 pid=5247 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=b1c748e8-1900-0000-0215-47697f140000 pid=5247 clone guuid=b7644de8-1900-0000-0215-476980140000 pid=5248 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=b7644de8-1900-0000-0215-476980140000 pid=5248 clone guuid=51fb50e8-1900-0000-0215-476981140000 pid=5249 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=51fb50e8-1900-0000-0215-476981140000 pid=5249 clone guuid=b7d557e8-1900-0000-0215-476982140000 pid=5250 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=b7d557e8-1900-0000-0215-476982140000 pid=5250 clone guuid=4f485ce8-1900-0000-0215-476983140000 pid=5251 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=4f485ce8-1900-0000-0215-476983140000 pid=5251 clone guuid=34e65fe8-1900-0000-0215-476984140000 pid=5252 /tmp/sample.bin guuid=77800666-1900-0000-0215-476975140000 pid=5237->guuid=34e65fe8-1900-0000-0215-476984140000 pid=5252 clone
Result
Threat name:
Gafgyt, Mirai
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Deletes system log files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1776247 Sample: x86_32.urbotnetisass.elf Startdate: 12/09/2025 Architecture: LINUX Score: 92 63 94.154.35.153, 43212 SELECTELRU Ukraine 2->63 65 109.202.202.202, 80 INIT7CH Switzerland 2->65 67 2 other IPs or domains 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 Yara detected Gafgyt 2->73 75 Yara detected Mirai 2->75 10 x86_32.urbotnetisass.elf 2->10         started        12 udisksd dumpe2fs 2->12         started        14 udisksd dumpe2fs 2->14         started        16 163 other processes 2->16 signatures3 process4 process5 18 x86_32.urbotnetisass.elf 10->18         started        file6 55 /memfd:/usr/lib/librt.so.1 (deleted), ELF 18->55 dropped 57 /memfd:/usr/lib/libpthread.so.0 (deleted), ELF 18->57 dropped 59 /memfd:/usr/lib/libm.so.6 (deleted), ELF 18->59 dropped 61 41 other malicious files 18->61 dropped 77 Writes identical ELF files to multiple locations 18->77 22 x86_32.urbotnetisass.elf 18->22         started        24 x86_32.urbotnetisass.elf 18->24         started        signatures7 process8 process9 26 x86_32.urbotnetisass.elf 22->26         started        29 x86_32.urbotnetisass.elf 22->29         started        31 x86_32.urbotnetisass.elf 22->31         started        35 6 other processes 22->35 33 x86_32.urbotnetisass.elf 24->33         started        signatures10 79 Sample reads /proc/mounts (often used for finding a writable filesystem) 26->79 81 Deletes system log files 26->81 37 x86_32.urbotnetisass.elf 26->37         started        39 x86_32.urbotnetisass.elf 26->39         started        41 x86_32.urbotnetisass.elf 26->41         started        47 7 other processes 26->47 49 10 other processes 29->49 43 x86_32.urbotnetisass.elf 31->43         started        45 x86_32.urbotnetisass.elf 31->45         started        51 8 other processes 31->51 53 60 other processes 35->53 process11
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-09-12 06:27:25 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery linux
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Deletes log files
Enumerates running processes
Writes file to system bin folder
Deletes system logs
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-7755770-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b
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:ach_202503_elf_Mirai
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:CP_AllMal_Detector
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:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Author:Elastic Security
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

Mirai

elf a64df1d17f7c1575c62efe35fa466d6217cddb6b813ea9fc7039b3a451326c93

(this sample)

  
Delivery method
Distributed via web download

Comments