MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0
SHA3-384 hash: 253aed9fe991a830c36ddf6fb5af4637843861eeece025224f263e38f236f33ed4b9523b0db0f523f013a319cf7ac82f
SHA1 hash: fa0ec9abb53d22fa2638751fbc8476e1667c90b6
MD5 hash: b2cc4504dc5cc9137828dcc22d013115
humanhash: delaware-bulldog-stairway-summer
File name:nova.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:106'756 bytes
First seen:2025-12-18 12:06:56 UTC
Last seen:2025-12-26 01:03:36 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:WmR4bkFj8v2VWlrL4XE+QIeMpIEkLS6Myzs7Zk3g6gl61d6gnQD5:WmR4JriLpTkLhyCg4JS5
TLSH T107A30606BF110FF7D85FDC7706EA0B01298CA91B15A63BB57534E858BA4B6CB19E3870
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 :
2
# of downloads :
70
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/a5cd7703-0a89-4ecc-8680-8d61c622ef97/
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28959.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135898-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
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-10027280-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Kills processes
Sends data to a server
Runs as daemon
Substitutes an application name
Kills critical processes
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bash botnet gafgyt gcc lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/6943ee713f8fdbf8e94ac1ef/reports/a26f80e4-f9d7-4fbc-aefa-37c4a6bac41a/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-18T09:12:00Z UTC
Last seen:
2025-12-19T00:31:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.ew HEUR:Backdoor.Linux.Mirai.es HEUR:Backdoor.Linux.Mirai.c HEUR:Backdoor.Linux.Mirai.ba HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/675c517d-9841-4795-84a3-a830499a1475
Behavior Graph:
Download SVG
%3 guuid=0e7b7b76-1900-0000-8fb6-79445d140000 pid=5213 /usr/bin/sudo guuid=2f470e7a-1900-0000-8fb6-79445e140000 pid=5214 /tmp/sample.bin guuid=0e7b7b76-1900-0000-8fb6-79445d140000 pid=5213->guuid=2f470e7a-1900-0000-8fb6-79445e140000 pid=5214 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2ccb6ee1-3a3c-45ae-94d1-145fd3ae0ae3
Result
Threat name:
Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1835623
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1835623 Sample: nova.mpsl.elf Startdate: 18/12/2025 Architecture: LINUX Score: 88 55 94.162.16.177, 23 WINDTRE-ASIT Italy 2->55 57 146.62.78.103, 23 VODANETInternationalIP-BackboneofVodafoneDE unknown 2->57 59 99 other IPs or domains 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 Yara detected Okiru 2->67 8 nova.mpsl.elf 2->8         started        10 systemd gpu-manager 2->10         started        12 systemd gpu-manager 2->12         started        14 70 other processes 2->14 signatures3 process4 signatures5 17 nova.mpsl.elf 8->17         started        19 nova.mpsl.elf 8->19         started        22 nova.mpsl.elf 8->22         started        24 gpu-manager sh 10->24         started        26 gpu-manager sh 10->26         started        28 gpu-manager sh 10->28         started        30 3 other processes 10->30 32 6 other processes 12->32 77 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->77 34 17 other processes 14->34 process6 signatures7 36 nova.mpsl.elf 17->36         started        47 4 other processes 17->47 69 Sample tries to kill a massive number of system processes 19->69 71 Sample tries to kill multiple processes (SIGKILL) 19->71 39 sh grep 24->39         started        41 sh grep 26->41         started        43 sh grep 28->43         started        45 sh grep 30->45         started        49 2 other processes 30->49 51 6 other processes 32->51 53 6 other processes 34->53 process8 signatures9 73 Sample tries to kill a massive number of system processes 36->73 75 Sample tries to kill multiple processes (SIGKILL) 36->75
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-18 12:07:20 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=tguyxi3x6vgophg2hu7p3en5r7qmlykyhjnvk62ga4e7f5z4a6qa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora defense_evasion
Link:
https://tria.ge/reports/251218-pahnzsgs7h/
Behaviour
Changes its process name
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
botnet mirai trojan Unix.Dropper.Mirai-7135868-0
YARA:
Mirai_Botnet_Malware Linux_Trojan_Mirai_0bce98a2
Link:
https://app.threat.zone/submission/d13d4d62-dc25-433f-8e7e-221aaf1b5a89
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/99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0

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_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 99a98ba377f54ce79cda3d3efd91bd8fe0c5e1583a5b557b460709f2f73c07a0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3735597/
  
Delivery method
Distributed via web download

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