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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f33cfec86da882e65998f6277ea4552313d0fd611360a0bbac6928918466d7d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f33cfec86da882e65998f6277ea4552313d0fd611360a0bbac6928918466d7d
SHA3-384 hash: a8f43de27800c99911ec3f2f91feb36d8012dcb9e572cfd62d1a4689adb3f3a650e1760da72563f6371fbff5e7a558dd
SHA1 hash: 3bb88931e229744b33b19f471d1935b6291328b6
MD5 hash: d1c1da783e35f7cff6589681a4c79e03
humanhash: stream-nine-whiskey-cold
File name:armv5l
Download: download sample
Signature Mirai
Create hunting rule
File size:74'796 bytes
First seen:2026-10-10 08:15:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:/z6vm4/7/6Olu2rPjPQAqjh9yxxWxQYvEsDAdDH1B3z3:r6ei42re6ixQXsDSD33j
TLSH T16173021432CAF5F1CDD0606A5E6C575FB379A2FCA990B03A522F05489193E9F3C5D2CA
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 UPX
File size (compressed) :74'796 bytes
File size (de-compressed) :193'048 bytes
Format:linux/arm
Unpacked file: 3c1a9138fa3318d82169fe9799fa52af170d844aba8bad08d0ed945388ccddd8

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/ddae1cc0-3f78-45f5-a053-98491451bd76/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6ac9f425e55ddcfe8e27e970/reports/fbcfe91d-5d1f-431e-8514-296120fa7657/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/518d7e8e-b6d3-4b50-95f6-7ff4107d4f1f
Behavior Graph:
Download SVG
%3 guuid=ffe4cdd3-1600-0000-8a12-dafe410d0000 pid=3393 /usr/bin/sudo guuid=05f401d8-1600-0000-8a12-dafe500d0000 pid=3408 /tmp/sample.bin guuid=ffe4cdd3-1600-0000-8a12-dafe410d0000 pid=3393->guuid=05f401d8-1600-0000-8a12-dafe500d0000 pid=3408 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1ca448d8-7835-4293-a3d4-5987253b189a
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1985263
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1985263 Sample: armv5l.elf Startdate: 10/10/2026 Architecture: LINUX Score: 96 57 83.168.69.95, 38372, 38374, 38376 SKYPASS-ASPL Poland 2->57 59 Antivirus detection for dropped file 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 2 other signatures 2->65 11 armv5l.elf 2->11         started        14 systemd snapd-env-generator 2->14         started        16 systemd snapd-env-generator 2->16         started        18 python3.8 dpkg 2->18         started        signatures3 process4 signatures5 75 Found strings related to Crypto-Mining 11->75 20 armv5l.elf 11->20         started        process6 process7 22 armv5l.elf 20->22         started        signatures8 67 Sample deletes itself 22->67 25 armv5l.elf 22->25         started        29 armv5l.elf 22->29         started        31 armv5l.elf 22->31         started        33 armv5l.elf 22->33         started        process9 file10 51 /usr/lib/systemd/.system-helper, ELF 25->51 dropped 53 /etc/rc.local, ASCII 25->53 dropped 55 /etc/cron.d/killer-helper, ASCII 25->55 dropped 69 Drops invisible ELF files 25->69 71 Sample tries to persist itself using cron 25->71 73 Sample tries to persist itself using System V runlevels 25->73 35 armv5l.elf sh 25->35         started        37 armv5l.elf sh 29->37         started        39 armv5l.elf iptables 29->39         started        41 armv5l.elf iptables-restore 29->41         started        43 3 other processes 29->43 signatures11 process12 process13 45 sh systemctl 35->45         started        47 sh systemctl 35->47         started        49 sh journalctl 37->49         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3f33cfec86da882e65998f6277ea4552313d0fd611360a0bbac6928918466d7d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f33cfec86da882e65998f6277ea4552313d0fd611360a0bbac6928918466d7d/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2026-10-10 08:15:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h4z473eg3kec4zmzr5rhp2sfkiyt2d6wce3auc52y2jisgcgnv6q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/261010-j5q1ys11bw/
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:ELF_IoT_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 3f33cfec86da882e65998f6277ea4552313d0fd611360a0bbac6928918466d7d

(this sample)

Mirai

elf 3c1a9138fa3318d82169fe9799fa52af170d844aba8bad08d0ed945388ccddd8

  
Dropping
SHA256 3c1a9138fa3318d82169fe9799fa52af170d844aba8bad08d0ed945388ccddd8
  
Dropping
MD5 c93a22e442c49cc0f2a1ea31aa88872c
  
URLhaus
https://urlhaus.abuse.ch/url/3925737/
  
Delivery method
Distributed via web download

Comments