MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17
SHA3-384 hash: 4536319c7433738279100c0d5147c48aaabba4e12957fdd670c75074a1a979e3f8d72cefd3373483695cbbfa25759c59
SHA1 hash: 425c3c24fe9231586483d1f74b755b4b03e140c3
MD5 hash: a44628d6daf5dfbfcc14be9fa078695a
humanhash: violet-texas-uncle-missouri
File name:sh4.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:221'936 bytes
First seen:2025-09-10 14:54:50 UTC
Last seen:2025-09-10 20:29:34 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:0Tgt+J3eNIACjpTu2WB9aymVvvjBY8zGgXVMBkgvRo0DA0DC2L9cTvnnqJQ:0TBIidTuvB9aym95zUkgvXDNWTyJQ
TLSH T1AA24D133CA716E94C16556B172F1DF3C4F237591824B3E7895EECA516043E8CB22ABB8
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 :
98
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.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
Link:
https://www.filescan.io/uploads/68c1917ac62f69962388463c/reports/a41fa984-cdf2-4c79-b143-0e7bebad3b51/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-10T13:32:00Z UTC
Last seen:
2025-09-10T13:32:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2669f1db-73bd-44ce-94a4-3adcd4478bb0
Behavior Graph:
Download SVG
%3 guuid=ce13311f-1700-0000-90a3-bc38aa0d0000 pid=3498 /usr/bin/sudo guuid=597c8421-1700-0000-90a3-bc38ab0d0000 pid=3499 /tmp/sample.bin guuid=ce13311f-1700-0000-90a3-bc38aa0d0000 pid=3498->guuid=597c8421-1700-0000-90a3-bc38ab0d0000 pid=3499 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d4aee2f7-8424-4e2a-9ee6-0bd82561b4d3
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1774902
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: 1774902 Sample: sh4.urbotnetisass.elf Startdate: 10/09/2025 Architecture: LINUX Score: 92 47 94.154.35.153, 43212 SELECTELRU Ukraine 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected Gafgyt 2->53 55 Yara detected Mirai 2->55 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_.5490_librt.so.1, ELF 18->39 dropped 41 /_dev_shm_.5490_libpthread.so.0, ELF 18->41 dropped 43 /_dev_shm_.5490_libm.so.6, ELF 18->43 dropped 45 6 other malicious files 18->45 dropped 57 Writes identical ELF files to multiple locations 18->57 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 59 Sample reads /proc/mounts (often used for finding a writable filesystem) 26->59 61 Deletes system log files 26->61 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/a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-10 14:55:53 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=umjgjripbqiozxcuu26t2boixzkvir44f73vdnsom6kppjpjt4lq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250910-savv4abp3t/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7136288-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c257b0bb-6d9e-45a3-8b0f-25b9f7693609
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/a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17

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:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
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 a31264c50f0c10ecdc54a6bd3d05c8be5554479c2ff751b64e6794f7a5e99f17

(this sample)

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

Comments