MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a. 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 7 File information Comments
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SHA256 hash: c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a
SHA3-384 hash: 0fbc851b167c8ae26836221a69473c8696e8bc3513bc4cfe8caa6310020a9de0b0db3fa63a0ae539ab83d976d36f7f5d
SHA1 hash: b5ab4876060cfafc0a80c6bad3c8ca6286e10698
MD5 hash: 219fb17a1d77e4585b8c34cfa7aa504e
humanhash: coffee-ink-aspen-glucose
File name:sh4.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:189'176 bytes
First seen:2025-09-06 06:07:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:k7QMhjXWvcDY5DHOcw2WK6BwgmehJY2/lRVX6F9pByqfnf7JQ:0zAcgDHOGeBwgmBcXX6F9p8q7JQ
TLSH T1EB04AF22C9656E94C09806B2B0F4CF794F63A590418B2DF6A5DDCB75A043E8CB359BFC
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 :
91
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
anti-vm threat
Link:
https://www.filescan.io/uploads/68bbd020a64010de766e9e72/reports/0ebdb9fd-62d5-40a4-b635-589a4bca9588/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-06T04:44:00Z UTC
Last seen:
2025-09-06T04:44:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/32190c07-6f60-4452-804a-3abf28ec7e1f
Behavior Graph:
Download SVG
%3 guuid=d9d18516-1c00-0000-b5ef-ac17db090000 pid=2523 /usr/bin/sudo guuid=d1ff9b18-1c00-0000-b5ef-ac17e1090000 pid=2529 /tmp/sample.bin guuid=d9d18516-1c00-0000-b5ef-ac17db090000 pid=2523->guuid=d1ff9b18-1c00-0000-b5ef-ac17e1090000 pid=2529 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/883a68cb-3384-48ee-99db-0e85694a3c10
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1772215
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1772215 Sample: sh4.urbotnetisass.elf Startdate: 06/09/2025 Architecture: LINUX Score: 92 47 94.154.35.153, 40632, 43212 SELECTELRU Ukraine 2->47 49 109.202.202.202, 80 INIT7CH Switzerland 2->49 51 2 other IPs or domains 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected Gafgyt 2->57 59 Yara detected Mirai 2->59 10 sh4.urbotnetisass.elf 2->10         started        12 udisksd dumpe2fs 2->12         started        14 udisksd dumpe2fs 2->14         started        16 26 other processes 2->16 signatures3 process4 process5 18 sh4.urbotnetisass.elf 10->18         started        file6 39 /_dev_shm_.6241_librt.so.1, ELF 18->39 dropped 41 /_dev_shm_.6241_libpthread.so.0, ELF 18->41 dropped 43 /_dev_shm_.6241_libm.so.6, ELF 18->43 dropped 45 6 other malicious files 18->45 dropped 61 Writes identical ELF files to multiple locations 18->61 22 sh4.urbotnetisass.elf 18->22         started        24 sh4.urbotnetisass.elf 18->24         started        signatures7 process8 process9 26 sh4.urbotnetisass.elf 22->26         started        29 sh4.urbotnetisass.elf 24->29         started        signatures10 63 Sample reads /proc/mounts (often used for finding a writable filesystem) 26->63 65 Deletes system log files 26->65 31 sh4.urbotnetisass.elf 26->31         started        33 sh4.urbotnetisass.elf 26->33         started        35 sh4.urbotnetisass.elf 26->35         started        37 7 other processes 26->37 process11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-06 06:11:39 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=za2cr3c6cvtthrjhub2em77pqwywds7pf5s7ssz6olumrm7v4sna._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250906-gwpqes11cz/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7136288-0
YARA:
n/a
Link:
https://app.threat.zone/submission/a1a3f0fe-d217-4945-9788-ad591eae5b0b
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/c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Mirai

elf c83428ec5e156733c527a074467fef85b161cbef2f65f94b3e72e8c8b3f5e49a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618253/
  
Delivery method
Distributed via web download

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