MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e
SHA3-384 hash: ee5149448aa22d68256145f57595ca4f910e0cfbba2d6a007059fcad8284ff1e5c967520f3572310be940e423369d51c
SHA1 hash: d1c4c28508c9a51f32ffc3c7429e5089110fa840
MD5 hash: 1f51b23181c6ee03b0a387a75a9fd665
humanhash: nineteen-eighteen-crazy-spaghetti
File name:bolobotsh4
Download: download sample
Signature Mirai
Create hunting rule
File size:124'768 bytes
First seen:2025-07-11 15:45:01 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:+ar30RZ/tMiEG9vDiY+BFveXmDQeCzKjNjMTa0jzUZOWnTgflVA8kulzV:+fZVlDi97DQeTjl0jwOWTgfM8NV
TLSH T187C36AB3C825AF68C659D578F4708AB82B53A51581870FFE09A7C3B98483DCDF6057B8
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 gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
14
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Trojan.Mirai-7674518-0
Create hunting rule

Unix.Trojan.Generic-9910199-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=687131c2900df8e7f869e1falinux22vpnfull_triage
Tags:
n/a
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/687131b230bf7333233761f0/reports/a79c825c-90ef-4fe9-bea8-9afa9eff14b8/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6bc7cfd8-e4b3-44ba-9dbb-48960621df63
Behavior Graph:
Download SVG
%3 guuid=169ca08f-1a00-0000-95cd-866450090000 pid=2384 /usr/bin/sudo guuid=6755ea91-1a00-0000-95cd-866457090000 pid=2391 /tmp/sample.bin guuid=169ca08f-1a00-0000-95cd-866450090000 pid=2384->guuid=6755ea91-1a00-0000-95cd-866457090000 pid=2391 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/dcf22573-d67f-43e0-9cdf-00975a7b65d6
Result
Threat name:
Mirai, Gafgyt, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1733999
Signature
Contains VNC / remote desktop functionality (version string found)
Detected Mirai
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Suricata IDS alerts for network traffic
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1733999 Sample: bolobotsh4.elf Startdate: 11/07/2025 Architecture: LINUX Score: 100 121 net.bolo.gay 185.186.25.220, 49856, 49858, 49860 ASGHOSTNETDE Germany 2->121 123 Suricata IDS alerts for network traffic 2->123 125 Malicious sample detected (through community Yara rule) 2->125 127 Detected Mirai 2->127 129 5 other signatures 2->129 12 systemd bolobotsh4.elf 2->12         started        15 bolobotsh4.elf 2->15         started        17 systemd snapd-env-generator 2->17         started        19 5 other processes 2->19 signatures3 process4 signatures5 147 Contains VNC / remote desktop functionality (version string found) 12->147 21 bolobotsh4.elf 12->21         started        25 bolobotsh4.elf 15->25         started        process6 file7 95 /root/.bashrc, ASCII 21->95 dropped 97 /etc/rc.local, ASCII 21->97 dropped 99 /etc/profile, ASCII 21->99 dropped 101 /etc/init.d/S99network, POSIX 21->101 dropped 133 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 21->133 135 Sample tries to persist itself using System V runlevels 21->135 27 bolobotsh4.elf sh 21->27         started        29 bolobotsh4.elf sh 21->29         started        31 bolobotsh4.elf sh 21->31         started        39 8 other processes 21->39 137 Sample tries to set files in /etc globally writable 25->137 139 Sample tries to persist itself using /etc/profile 25->139 141 Drops files in suspicious directories 25->141 33 bolobotsh4.elf sh 25->33         started        35 bolobotsh4.elf sh 25->35         started        37 bolobotsh4.elf sh 25->37         started        43 8 other processes 25->43 signatures8 process9 file10 57 2 other processes 27->57 45 sh cp 29->45         started        49 sh cp 31->49         started        59 2 other processes 33->59 51 sh cp 35->51         started        53 sh cp 37->53         started        103 /var/spool/cron/crontabs/root, ASCII 39->103 dropped 61 6 other processes 39->61 143 Sample tries to persist itself using cron 43->143 55 sh systemctl 43->55         started        63 5 other processes 43->63 signatures11 process12 file13 105 /usr/bin/networkd, ELF 45->105 dropped 107 /usr/bin/netconfig, ELF 49->107 dropped 149 Writes identical ELF files to multiple locations 51->149 151 Drops files in suspicious directories 51->151 65 systemctl systemd-sysv-install 55->65         started        109 /var/spool/cron/crontabs/tmp.OxfvQW, ASCII 57->109 dropped 67 sh crontab 57->67         started        111 /var/spool/cron/crontabs/tmp.tWfwzZ, ASCII 59->111 dropped 153 Sample tries to persist itself using cron 59->153 155 Executes the "crontab" command typically for achieving persistence 59->155 70 sh crontab 59->70         started        113 /var/tmp/.sys, ELF 61->113 dropped 115 /usr/sbin/network-service, ELF 61->115 dropped 117 /usr/sbin/netmgr, ELF 61->117 dropped 119 /tmp/.net, ELF 61->119 dropped 72 systemctl systemd-sysv-install 61->72         started        157 Drops invisible ELF files 63->157 signatures14 process15 signatures16 74 systemd-sysv-install update-rc.d 65->74         started        77 systemd-sysv-install update-rc.d 65->77         started        79 systemd-sysv-install getopt 65->79         started        131 Executes the "crontab" command typically for achieving persistence 70->131 81 systemd-sysv-install update-rc.d 72->81         started        83 systemd-sysv-install update-rc.d 72->83         started        85 systemd-sysv-install getopt 72->85         started        process17 signatures18 145 Sample tries to persist itself using System V runlevels 74->145 87 update-rc.d systemctl 74->87         started        89 update-rc.d systemctl 77->89         started        91 update-rc.d systemctl 81->91         started        93 update-rc.d systemctl 83->93         started        process19
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-07-11 13:37:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w36czyta2kgspnfaxpnardacz6ybjeiwidqxhxhn4u6uilf4v6pa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/250711-s7f37sam6w/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Dropper.Mirai-7136288-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/dee01737-69b7-4222-98bd-4151222bcd55
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/b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e

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_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
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 b6fc2ce260d28d27b4a0bbda088c02cfb014911640e173dcede53d442cbcaf9e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581447/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3581491/

Comments