MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba. 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: 13


Intelligence 13 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba
SHA3-384 hash: 0340c2ca0b1d6c2f52b88a8330398c6c50879c6656b23649aceb215d4f01a91785b1302dfc066e8f3b3c3457f7cec1b5
SHA1 hash: fadedfabc8d3585bc84107d152f9dba58e5cf2f0
MD5 hash: 2bb955458d9ac6e776e26bba0d1e7da1
humanhash: mexico-potato-island-green
File name:s
Download: download sample
Signature Mirai
Create hunting rule
File size:199'858 bytes
First seen:2025-08-23 20:55:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:adPalbsC71P1lrGNCZEKLDM/9wmvOwY922LVs:adPalbsC71PnGQZvA/CmvOF922LVs
TLSH T13B143908D640475BC1E227BBF68B429E33235F94A3D733199A38BBB03BD1B591E35915
telfhash t1c6317522997883242ff79928fcbc57b301226b2353563e72af35c5cc44260a1e53ad9b
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30541.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Trojan.Mirai-10056454-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
Kills processes
Collects information on the CPU
Runs as daemon
Attempts to kill processes by name
Creating a file
Sends data to a server
Connection attempt
Launching a process
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc lolbin obfuscated remote threat
Link:
https://www.filescan.io/uploads/68aa2aea2a70220b68d8cbe4/reports/febf65f2-0bd1-4a68-a679-813508ba9e64/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
192
Number of processes launched:
21
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba
Behaviour
Anti-VM
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
type:Gafgyt 206.123.145.140:65481
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.fz HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Gafgyt.a
Link:
https://opentip.kaspersky.com/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d2355a2c-c541-43f2-8d32-5aae7e963e8b
Behavior Graph:
Download SVG
%3 guuid=ea248a8a-1a00-0000-ba38-448c380b0000 pid=2872 /usr/bin/sudo guuid=d6d2418c-1a00-0000-ba38-448c3f0b0000 pid=2879 /tmp/sample.bin guuid=ea248a8a-1a00-0000-ba38-448c380b0000 pid=2872->guuid=d6d2418c-1a00-0000-ba38-448c3f0b0000 pid=2879 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/76132546-714d-4ed7-b928-d211e07b2937
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1763736
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Terminates several processes with shell command 'killall'
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1763736 Sample: s.elf Startdate: 23/08/2025 Architecture: LINUX Score: 84 45 206.123.145.140, 59168, 59170, 59172 LEASEWEB-USA-NYC-11US United States 2->45 47 169.254.169.254, 80 USDOSUS Reserved 2->47 49 daisy.ubuntu.com 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 2 other signatures 2->57 9 s.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 signatures5 59 Opens /proc/net/* files useful for finding connected devices and routers 9->59 14 s.elf 9->14         started        16 s.elf 9->16         started        18 s.elf 9->18         started        process6 process7 20 s.elf sh 14->20         started        22 s.elf sh 14->22         started        24 s.elf sh 14->24         started        28 21 other processes 14->28 26 s.elf 16->26         started        process8 30 sh killall 20->30         started        33 sh killall 22->33         started        35 sh killall 24->35         started        37 sh killall 28->37         started        39 sh killall 28->39         started        41 sh killall 28->41         started        43 18 other processes 28->43 signatures9 61 Terminates several processes with shell command 'killall' 30->61
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba/
Verdict:
Malicious
Threat:
Family.GAFGYT
Link:
https://tip.neiki.dev/file/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-08-23 20:56:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wll37f46b2i4i6mp5jogvkunx42y5svsbpv6jifhz356mzlnsc5a._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt antivm defense_evasion discovery execution
Link:
https://tria.ge/reports/250823-zq3dfahp9s/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Changes its process name
Checks CPU configuration
Reads system network configuration
Enumerates running processes
Reads system routing table
Modifies Watchdog functionality
Writes memory of remote process
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Dropper.Mirai-7139229-0
YARA:
Linux_Trojan_Gafgyt_6a510422 Linux_Trojan_Gafgyt_d2953f92
Link:
https://app.threat.zone/submission/26232dab-b796-4606-b472-2fb4f3cfb523
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:CP_AllMal_Detector
Create hunting rule
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: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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Gafgyt_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Linux_Trojan_Gafgyt_6a510422
Create hunting rule
Author:Elastic Security
Reference:14cc92b99daa0c91aa09d9a7996ee5549a5cacd7be733960b2cf3681a7c2b628
Rule name:Linux_Trojan_Gafgyt_d2953f92
Create hunting rule
Author:Elastic Security
Reference:14cc92b99daa0c91aa09d9a7996ee5549a5cacd7be733960b2cf3681a7c2b628
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 b2d7bf979e0e91c4798fea5c6aaa8dbf358ecab20bebe4a0a7cefbe6656d90ba

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576532/
  
Delivery method
Distributed via web download

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