MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa
SHA3-384 hash: e8739c38f3fdec54818f95a1aee7851bbab92ffcf05a4881abb81cf1368012fb23b516a9d9c894e188fbc9c20b402bae
SHA1 hash: 63a384564dec8a41f9e132fb8f7ebd02a1b2f004
MD5 hash: 1b31f9c2ac85b8dde20a4193111626a9
humanhash: india-montana-alaska-fish
File name:nova.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:80'128 bytes
First seen:2025-12-23 12:35:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:qPI7IUernBN//qGo4KMLhL5afCZGoW68Mul61d6tX3:qPeeNNhWMrafoD5u4I
TLSH T1BD736B77AA16AF56C04B94F069F28E780B53BD158D671FF9A1A9E9D60003DECF5083B0
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 :
98
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
a c2 socket address and a scan socket address
Link:
https://research.acce.ciphertechsolutions.com/results/071f7d56-59df-4bed-956a-fe85a2920406/
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.Dropper.Mirai-7136488-0
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-10027280-0
Create hunting rule

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

Unix.Trojan.Mirai-10057021-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc masquerade
Link:
https://www.filescan.io/uploads/694a8cc529529c74a2f5419a/reports/b99733ca-df9c-401c-b031-ead76d9a7997/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/807512c7-799e-4a2b-977e-ae35f5e009ef
Behavior Graph:
Download SVG
%3 guuid=d76d9aaa-1a00-0000-8553-e92ec2090000 pid=2498 /usr/bin/sudo guuid=e0403eac-1a00-0000-8553-e92ec8090000 pid=2504 /tmp/sample.bin guuid=d76d9aaa-1a00-0000-8553-e92ec2090000 pid=2498->guuid=e0403eac-1a00-0000-8553-e92ec8090000 pid=2504 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0ded4bec-45ab-4871-99bb-d66408c45ac6
Result
Threat name:
Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1838195
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: 1838195 Sample: nova.sh4.elf Startdate: 23/12/2025 Architecture: LINUX Score: 88 55 41.213.21.231, 23 rainZA South Africa 2->55 57 27.113.198.146, 23 ZLANZTVCOLTDJP Japan 2->57 59 100 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.sh4.elf 2->8         started        10 systemd gpu-manager 2->10         started        12 systemd gpu-manager 2->12         started        14 86 other processes 2->14 signatures3 process4 signatures5 17 nova.sh4.elf 8->17         started        19 nova.sh4.elf 8->19         started        22 nova.sh4.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 5 other processes 12->32 77 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->77 34 16 other processes 14->34 process6 signatures7 36 nova.sh4.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 5 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/837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 12:36:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qn6r75usf563il3hjr5r2u4rgjlkqjnrij37blaldqova2cx3h5a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251223-pvnezaymhs/
Verdict:
Malicious
Tags:
trojan mirai Unix.Dropper.Mirai-7135868-0
YARA:
Linux_Trojan_Mirai_0bce98a2
Link:
https://app.threat.zone/submission/ae85561d-b10a-4381-95a7-dfabdf0e7f9c
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/837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa

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: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 837d1ff6922f7db42f674c7b1d53913256a825b14277f0ac0b1c1d506857d9fa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3735615/
  
Delivery method
Distributed via web download

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