MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257
SHA3-384 hash: 32706316b351fba96988e760a24bd2ac69c0be2c2c4f66886724a9c8044d7628d4bfe252f4f7e24f8de8c31ad686c326
SHA1 hash: 64c954e6c79193cb2a24ba41932d24edcf860a20
MD5 hash: 715b497fd43518f09de5ea62e8caa8a5
humanhash: kitten-ink-virginia-river
File name:4
Download: download sample
Signature Mirai
Create hunting rule
File size:92'052 bytes
First seen:2025-01-12 20:16:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:vGnv0tc4Zvf4IrepiQC3Rk4y+R+jtopX+HMDiP6SsIGPhnqgIZgTeg:brYbMQABy9sSsIGPhdJT
TLSH T1B993FA86F9816A51C6C146BBBD2F025E33066BA8E2DE7313DD241B64778B51F0F2790B
telfhash t12ec08c365b8591ceb7e33a6482eee4427394fa67460e38abd8104d06c9c3b81700fd0b
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 :
150
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6784233faa9c8e7858de6a89linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Deleting a recently created file
Connection attempt
Launching a process
Manages services
Collects information on the network activity
Creating a file
Creating a file in the %temp% directory
Kills processes
Opens a port
Sets a written file as executable
Sends data to a server
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/6784233fbf34a5831fca5e0a/reports/a63a9937-5692-4a61-9130-9e47aea005ed/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
4
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/71cbe4c9-58c6-415b-b449-d3e1ae429b43
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1589579
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1589579 Sample: 4.elf Startdate: 12/01/2025 Architecture: LINUX Score: 64 55 Multi AV Scanner detection for submitted file 2->55 9 4.elf 2->9         started        13 xfce4-panel wrapper-2.0 2->13         started        15 xfce4-panel wrapper-2.0 2->15         started        17 5 other processes 2->17 process3 file4 49 /tmp/crontab.tmp, troff 9->49 dropped 51 /etc/init.d/hello, Bourne-Again 9->51 dropped 57 Sample tries to kill multiple processes (SIGKILL) 9->57 59 Drops files in suspicious directories 9->59 19 4.elf sh 9->19         started        21 4.elf 9->21         started        23 4.elf sh 9->23         started        25 2 other processes 9->25 signatures5 process6 process7 27 sh crontab 19->27         started        31 4.elf 21->31         started        33 sh systemctl 23->33         started        35 sh systemctl 25->35         started        37 sh 25->37         started        file8 53 /var/spool/cron/crontabs/tmp.r3eunD, troff 27->53 dropped 61 Sample tries to persist itself using cron 27->61 63 Executes the "crontab" command typically for achieving persistence 27->63 39 4.elf 31->39         started        41 4.elf 31->41         started        43 4.elf 31->43         started        45 3 other processes 31->45 signatures9 process10 process11 47 4.elf 39->47         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-12 20:17:04 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vkofx7ttl5t2xboh2ivoafiqhjytcbaps7itbtk2akhblub7yjlq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery execution persistence privilege_escalatio privilege_escalation
Link:
https://tria.ge/reports/250112-y2n5hsznel/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Executes dropped EXE
Contacts a large (73365) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/68840d33-ad57-4437-a7fe-cf91017d71a6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257

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:Linux_Generic_Threat_d2dca9e7
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 aa9c5bfe735f67ab85c7d22ae015103a7131040f97d130cd5a028e15d03fc257

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3386683/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3396263/

Comments