MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f
SHA3-384 hash: f7898ffbdfa02a352ea3497b4af68380f195c43256ffced7c1df11813caaf4c75d139fec373fb62fda08f0b2e301f8a9
SHA1 hash: 819a67713a8e5b15a4055699bb30b04f08f550be
MD5 hash: 62228685ffe24de92f645c20ed797724
humanhash: illinois-skylark-video-indigo
File name:nova.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:76'040 bytes
First seen:2025-12-18 12:26:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Ua5SIbjF3r/Xml/qSy5K36ZjPMGQCssCPxj/M5l61d6t:UsvbFTmTx3Y4GQwejc4I
TLSH T1FC736BA7DA16AF46C04751F061F28E340B13BC1989A71EF5D5A5EEE61003EE8F9193F4
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 :
123
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/61ba6d2a-df2c-49b2-ba1b-ce562279add4/
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:
gafgyt gcc masquerade mirai
Link:
https://www.filescan.io/uploads/6943f2e73f8fdbf8e94ac68c/reports/2ce5d06f-75ad-4ec3-9b78-564d4fcc10fb/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-18T10:32:00Z UTC
Last seen:
2025-12-19T00:31:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/0211474c-2cd3-4071-a99d-e0e0069797ca
Behavior Graph:
Download SVG
%3 guuid=05e205a1-1600-0000-8d50-97f9940c0000 pid=3220 /usr/bin/sudo guuid=9a947aa3-1600-0000-8d50-97f9960c0000 pid=3222 /tmp/sample.bin guuid=05e205a1-1600-0000-8d50-97f9940c0000 pid=3220->guuid=9a947aa3-1600-0000-8d50-97f9960c0000 pid=3222 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8debd6e5-c223-40d1-bf8f-32080f75e2a5
Result
Threat name:
Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1835634
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: 1835634 Sample: nova.sh4.elf Startdate: 18/12/2025 Architecture: LINUX Score: 88 55 154.227.79.61, 2323 ZAINUGASUG Uganda 2->55 57 102.151.199.105, 23 ZAIN-ZAMBIAZM Zambia 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 54 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        30 6 other processes 10->30 32 5 other processes 12->32 77 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->77 24 gpu-manager sh 14->24         started        26 gpu-manager sh 14->26         started        28 gpu-manager sh 14->28         started        34 7 other processes 14->34 process6 signatures7 36 nova.sh4.elf 17->36         started        49 4 other processes 17->49 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        51 6 other processes 30->51 45 sh grep 32->45         started        47 sh grep 32->47         started        53 3 other processes 32->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/31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-18 12:27:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gh6m6kdzfonyc4vpggyghbx4r55fzr6xh4qy4sg6d35mqolekspq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251218-pme4masrgv/
Verdict:
Malicious
Tags:
trojan mirai Unix.Dropper.Mirai-7135868-0
YARA:
Linux_Trojan_Mirai_0bce98a2
Link:
https://app.threat.zone/submission/6d4b8c03-92f1-45e4-b14b-c6804fd84c89
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/31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f

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 31fccf28792b9b8172af31b06386fc8f7a5cc7d73f218e48de1efac83964549f

(this sample)

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

Comments