MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c
SHA3-384 hash: 1f46c9114989e26549064e6492a4e6b28cd324a6718a3318ba4a30fdef0689d182b02aff14277e5cba43ab0df0f2f9f7
SHA1 hash: ecadd27af39f7a0bda2edffb75c6e8bbc3c6e793
MD5 hash: 1b64433041b7c82379cd60195ceac5cf
humanhash: enemy-ink-quiet-snake
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:79'028 bytes
First seen:2025-11-09 00:53:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:BQ1X/XXGBS26ei+c/VSIgFLpXlIUNAM9GSx8it1uiwBRwSy/S65SJ:BE12w1VMFHxNx8Sx8Iwi5dAJ
TLSH T142736BC6E643D8B9FC624234523BA7B74632F6352125EE4BCB69BD36AC17502B31631C
telfhash t18231d6fb0aae0de8a7c16900c31f6f81285fe7bb14a4779245539928326fec550bac35
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 :
45
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Kills processes
Receives data from a server
Opens a port
Sends data to a server
Mounts file systems
Creates directories in a temporary directory
Sets a written file as executable
Creating a file
Creating a file in the %temp% directory
Creating a file in the %temp% subdirectories
Deleting a recently created file
Connection attempt
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/690fe6362b74ec26eb6c0461/reports/19015538-fc30-4308-b045-69614d2a8a16/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c
Behaviour
Anti-VM
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-08T22:12:00Z UTC
Last seen:
2025-11-08T22:45:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d54845e-2fd9-48e1-ac33-f0b6db8a0faf
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1810767
Signature
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)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1810767 Sample: x86_32.uhavenobotsxd.elf Startdate: 09/11/2025 Architecture: LINUX Score: 60 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 8 x86_32.uhavenobotsxd.elf 2->8         started        11 udisksd dumpe2fs 2->11         started        13 udisksd dumpe2fs 2->13         started        15 159 other processes 2->15 process3 signatures4 32 Sample reads /proc/mounts (often used for finding a writable filesystem) 8->32 17 x86_32.uhavenobotsxd.elf 8->17         started        process5 file6 24 /tmp/.taunt, POSIX 17->24 dropped 26 /tmp/.mock, POSIX 17->26 dropped 20 x86_32.uhavenobotsxd.elf 17->20         started        process7 process8 22 x86_32.uhavenobotsxd.elf 20->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-09 00:54:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55f4cwhojk3rc4tdmoqsacypsjoxcglvwpqgvtqtcuy2sp4fsn6a._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
discovery linux
Link:
https://tria.ge/reports/251109-a9bbmayjbq/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/f133a164-57a8-4a85-bb59-a4bfec504016
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
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:unixredflags3
Create hunting rule
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 ef4bc158ee4ab711726363a1200b0f925d711975b3e06ace131531a93f85937c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3687976/
  
Delivery method
Distributed via web download

Comments