MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
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SHA256 hash: 15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6
SHA3-384 hash: cbd38e9276ddd286d84feff1c75f5f460b82df628fa726cca0392cdc0a32c3de022abeceb0e29b94bfd5336a1d0d5e03
SHA1 hash: b57e7df8cf4013be718f56be205e14919101e87a
MD5 hash: f89985f03f8a27ab418e05bc232e4387
humanhash: uncle-sweet-tango-pip
File name:arm7
Download: download sample
Signature Mirai
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File size:104'916 bytes
First seen:2024-10-24 13:12:16 UTC
Last seen:2024-11-03 15:06:41 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:lK8+viZckDqI5GaHSfCr8ZwTEEs2S8SjjIxX:lK8bZckDlGaHSfCr8iTEWSJjkxX
TLSH T1B6A31946B9819F11D4C631FAFBAE414933536FB8E3FA7111D920AF6023CA9DB0E76512
telfhash t1bcd02b779410bcde3bd0c741c04ba2190dbc31d6ab114c75914e870e9d109f0385f635
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
18
# of downloads :
130
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.17449.12705.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Mounts file systems
Connection attempt
Changes the time when the file was created, accessed, or modified
Sends data to a server
Creating a file
Launching a process
Runs as daemon
Opens a port
Changes access rights for a written file
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2030dcdf-8ea0-442f-9f45-1a4afcb8e7f2
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1541201
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1541201 Sample: arm7.elf Startdate: 24/10/2024 Architecture: LINUX Score: 64 46 213.182.204.57, 24368, 39896 M247GB Latvia 2->46 48 109.202.202.202, 80 INIT7CH Switzerland 2->48 50 4 other IPs or domains 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Connects to many ports of the same IP (likely port scanning) 2->54 9 dash rm arm7.elf 2->9         started        13 dash rm 2->13         started        15 dash cat 2->15         started        17 7 other processes 2->17 signatures3 process4 file5 42 /root/.bashrc, ASCII 9->42 dropped 58 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 9->58 19 arm7.elf sh 9->19         started        21 arm7.elf 9->21         started        23 arm7.elf sh 9->23         started        25 2 other processes 9->25 signatures6 process7 process8 27 sh crontab 19->27         started        31 sh 19->31         started        33 arm7.elf 21->33         started        35 arm7.elf 21->35         started        37 sh 23->37         started        file9 44 /var/spool/cron/crontabs/tmp.hGK4g5, ASCII 27->44 dropped 60 Sample tries to persist itself using cron 27->60 62 Executes the "crontab" command typically for achieving persistence 27->62 39 sh crontab 31->39         started        signatures10 process11 signatures12 56 Executes the "crontab" command typically for achieving persistence 39->56
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-10-24 13:13:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
6 of 38 (15.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwxxb6i3qcm5jepw3ci42brtag4oidqghkqfkquu5qumvnyxkpda._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalatio privilege_escalation
Link:
https://tria.ge/reports/241024-qf5alssfkn/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Changes its process name
Creates/modifies Cron job
Modifies systemd
File and Directory Permissions Modification
Renames itself
Unexpected DNS network traffic destination
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9a728c33-6647-46b4-a5b4-ac9a32a5eac9
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/15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6

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:ELF_Mirai
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Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_8299c877
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 15af70f91b8099d491f6d891cd063301b8e40e063aa0554294ec28cab71753c6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3192590/
  
Delivery method
Distributed via web download

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