MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a. 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: 8


Intelligence 8 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a
SHA3-384 hash: 403a19c30cecb97c9c76f7b26fa567c68d2ae7362a0c09e18ed27445fe5adcd2cd99132ef58eb14ce5d8d833ee28ca0b
SHA1 hash: 69536d3953b20cb5efcb6fe90b5212acc2375f1b
MD5 hash: 3d495683ffd2349fde6d51e2925d4fe0
humanhash: glucose-texas-coffee-lima
File name:bot_arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:710'100 bytes
First seen:2026-06-15 21:01:59 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:cCuwep/DqDf4xAtaj7T9m0O1DR4GU2PSoFw4keBoIgpjKEEfTsJR0h7z6IjNGA9P:5774gaj71O1D975koJvpz6IjN990vcBx
TLSH T13DE4BFA7F6621E03C4E39A3F1567C1B48323E25613A29305A70BF5BC3AD52799F1A3C5
telfhash t1d3119d33d3b4b5310693d67fe4d84b2252ae80328d0da86fe69a8e7c030984d120799f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Mirai-42.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Collects information on the network activity
Collects information on the RAM
Changes access rights for a written file
Creating a file in the %temp% directory
Sends data to a server
Collects information on the CPU
Receives data from a server
Locks files
Changes access rights for a file
Connection attempt
Runs as daemon
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/6a30686abf16337e43c7e1b4/reports/07682c33-ac57-46a8-85f6-56488691c6a1/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-06-15T16:31:00Z UTC
Last seen:
2026-06-15T16:45:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/14ba4cb0-ccb9-48fb-9e68-f70a57f2bf4b
Behavior Graph:
Download SVG
%3 guuid=a5001aa7-1900-0000-0e44-3acef1060000 pid=1777 /usr/bin/sudo guuid=255ceda8-1900-0000-0e44-3acef3060000 pid=1779 /tmp/sample.bin guuid=a5001aa7-1900-0000-0e44-3acef1060000 pid=1777->guuid=255ceda8-1900-0000-0e44-3acef3060000 pid=1779 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d71a736c-3c94-44a7-86d7-c87cbc828a62
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1928429
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1928429 Sample: bot_arm7.elf Startdate: 16/06/2026 Architecture: LINUX Score: 68 24 94.156.152.234, 36642, 36644, 8080 INTERNET-MAGNATEZA South Africa 2->24 26 109.202.202.202, 80 INIT7CH Switzerland 2->26 28 4 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 9 bot_arm7.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        16 python3.8 dpkg 2->16         started        signatures3 process4 signatures5 36 Sample deletes itself 9->36 18 bot_arm7.elf 9->18         started        process6 process7 20 bot_arm7.elf 18->20         started        process8 22 bot_arm7.elf 20->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-06-15 21:02:47 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhst6ln3nd7a7rocr7x7ncowcml4g5kjy5t6vbpss6grwdqc3rna._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/260615-zwd8ssfy6z/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads CPU attributes
Deletes itself
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:malwareelf55503
Create hunting rule
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 81e53f2dbb68fe0fc5c28feff689d61317c37549c767ea85f2978d1b0e02dc5a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3862268/
  
Delivery method
Distributed via web download

Comments