MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973. 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
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SHA256 hash: 2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973
SHA3-384 hash: dbab23b86e50ac67b3570234facb6976c80a4b2eab1be64a07442a7bbaa424e82875c33ccdda030e34c28808d9f427ed
SHA1 hash: 917ecd7bf7547ebac51529d84f8489a8b6558321
MD5 hash: adad14b70434886129b215ac5243ca2b
humanhash: west-jig-finch-mars
File name:debug
Download: download sample
Signature Mirai
Create hunting rule
File size:56'300 bytes
First seen:2025-11-29 10:31:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:2T2kMENGTxGf/aulbyfMEqJLOzvnouy8HyG:O2GYGfb2qOz/outt
TLSH T1B543F11C646466D2DED8B130A689A70E5868C118FB5034D1BDDAB8522EF9F6CBA3C3C5
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) :56'300 bytes
File size (de-compressed) :140'784 bytes
Format:linux/i386
Unpacked file: 2793d2896d769e2ae89d154824273b9bd909ac350e90dc5085cfb09e14b13884

Intelligence

File Origin
# of uploads :
1
# of downloads :
27
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Kills processes
Launching a process
Sends data to a server
Deleting a recently created file
Removes directories
Receives data from a server
Creating a file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Opens a port
DNS request
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/692acbac1b65ca0bb9274cb4/reports/9c8e404f-ab2f-4d7f-8ce3-00757bbd5feb/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4994a4d8-fb8c-4a5f-8ca7-a28f1954bd3b
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1822817
Signature
Connects to many ports of the same IP (likely port scanning)
Deletes system log files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using cron
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1822817 Sample: debug.elf Startdate: 29/11/2025 Architecture: LINUX Score: 100 47 158.7.38.119, 37215, 52869, 80 WOOD-ASUS United States 2->47 49 164.9.210.243, 49152, 80, 8080 WM-DATASE Sweden 2->49 51 99 other IPs or domains 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected Gafgyt 2->57 59 3 other signatures 2->59 9 debug.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 file5 43 /usr/Bin), ELF 9->43 dropped 14 debug.elf 9->14         started        16 debug.elf sh 9->16         started        18 debug.elf 9->18         started        20 2 other processes 9->20 process6 process7 22 debug.elf 14->22         started        24 debug.elf 14->24         started        26 debug.elf 14->26         started        38 239 other processes 14->38 28 sh crontab 16->28         started        32 sh 16->32         started        34 debug.elf 18->34         started        36 debug.elf 18->36         started        file8 45 /var/spool/cron/crontabs/tmp.WjbBGO, ASCII 28->45 dropped 63 Sample tries to persist itself using cron 28->63 65 Executes the "crontab" command typically for achieving persistence 28->65 40 sh crontab 32->40         started        67 Manipulation of devices in /dev 34->67 69 Deletes system log files 34->69 signatures9 process10 signatures11 61 Executes the "crontab" command typically for achieving persistence 40->61
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-29 10:32:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=efkla7hfoohvfaazxdpsog6vpxxth2kas5curkstt4j6xzd6lfzq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/251129-mk17zaxrdl/
Behaviour
Reads runtime system information
Changes its process name
UPX packed file
Creates/modifies Cron job
Enumerates running processes
Writes file to system bin folder
Deletes Audit logs
Deletes journal logs
Deletes system logs
Modifies Watchdog functionality
Contacts a large (883) amount of remote hosts
Mirai
Mirai family
Malware Config
C2 Extraction:
draft21.redirectme.net
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/dd3cf360-91d1-4e66-9c2b-e950451c24e5
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
Link:
https://yomi.yoroi.company/submissions/2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973

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
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
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 2154b07ce5738f528019b8df271bd57def33e940974548aa539f13ebe47e5973

(this sample)

Mirai

elf 2793d2896d769e2ae89d154824273b9bd909ac350e90dc5085cfb09e14b13884

  
URLhaus
https://urlhaus.abuse.ch/url/3719123/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 2793d2896d769e2ae89d154824273b9bd909ac350e90dc5085cfb09e14b13884
  
Dropping
MD5 71e9cbcf157485187cdc127c638f842a
  
URLhaus
https://urlhaus.abuse.ch/url/3719138/
  
URLhaus
https://urlhaus.abuse.ch/url/3702411/

Comments