MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a19fa12c43acc758d6e6bdedeb9dc712b427c29e1f623dcdee9d2c36049eea6. 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 2 File information Comments

SHA256 hash: 1a19fa12c43acc758d6e6bdedeb9dc712b427c29e1f623dcdee9d2c36049eea6
SHA3-384 hash: 3cc0f26ad5f0fda05ae37151428c9c2b01414b911dd80f5881fb40cc10f53d849caa6ca26cc2dae193d0b93debfec059
SHA1 hash: f13d25a5fa532fff5c496e2e9ed8a720a69fbef0
MD5 hash: dd07b7f4449735ff5aeb2baa28e4f014
humanhash: paris-nineteen-steak-five
File name:uOa
Download: download sample
Signature Mirai
File size:101'452 bytes
First seen:2026-07-27 19:08:01 UTC
Last seen:2026-07-28 09:27:39 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:Z+PFTB/7U+XzZXCB/o2sUM4SF8AP6r1cp2nT8cHVUMVSdgVNoJYWE7h:EDJXzZXA/o2c8AlYS
TLSH T137A3E84AAF211DB7D85BDD3705AD0A4235CCAB0771683BB53934D828BA4A54F8AD3CF4
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 :
6
# of downloads :
73
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Sets a written file as executable
Connection attempt
Manages services
Runs as daemon
Collects information on the CPU
Creating a file
Collects information on the RAM
Creates or modifies files in /cron to set up autorun
Writes symbolic links to system directory
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-27T17:12:00Z UTC
Last seen:
2026-07-28T01:38:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=f5a2ac9e-1600-0000-3aa3-4929360d0000 pid=3382 /usr/bin/sudo guuid=6954c3a0-1600-0000-3aa3-4929380d0000 pid=3384 /tmp/sample.bin guuid=f5a2ac9e-1600-0000-3aa3-4929360d0000 pid=3382->guuid=6954c3a0-1600-0000-3aa3-4929380d0000 pid=3384 execve
Result
Threat name:
Generic IoTBotnet
Detection:
malicious
Classification:
spre.troj
Score:
80 / 100
Signature
Multi AV Scanner detection for submitted file
Protects files from modification
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
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
Yara detected Generic IoTBotnet
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1948547 Sample: uOa.elf Startdate: 27/07/2026 Architecture: LINUX Score: 80 43 94.154.43.102, 3389, 34820 CDNEXTGB Turkey 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Generic IoTBotnet 2->47 10 uOa.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 8 other processes 2->16 signatures3 process4 process5 18 uOa.elf 10->18         started        process6 20 uOa.elf 18->20         started        signatures7 49 Sample tries to kill multiple processes (SIGKILL) 20->49 51 Sample tries to persist itself using cron 20->51 53 Sample tries to persist itself using System V runlevels 20->53 23 uOa.elf 20->23         started        27 uOa.elf chattr 20->27         started        29 uOa.elf chattr 20->29         started        31 29 other processes 20->31 process8 file9 37 /etc/rc.local, POSIX 23->37 dropped 39 /etc/crontab, ASCII 23->39 dropped 41 /etc/cron.d/crond, ASCII 23->41 dropped 55 Sample tries to set files in /etc globally writable 23->55 57 Sample reads /proc/mounts (often used for finding a writable filesystem) 23->57 59 Sample tries to persist itself using cron 23->59 61 Sample tries to persist itself using System V runlevels 23->61 33 uOa.elf systemctl 23->33         started        35 uOa.elf systemctl 23->35         started        63 Protects files from modification 27->63 65 Sample tries to kill multiple processes (SIGKILL) 31->65 signatures10 process11
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-27 19:09:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
Checks CPU configuration
Creates/modifies Cron job
Enumerates running processes
Modifies rc script
Modifies systemd
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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
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 1a19fa12c43acc758d6e6bdedeb9dc712b427c29e1f623dcdee9d2c36049eea6

(this sample)

  
Delivery method
Distributed via web download

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