MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4
SHA3-384 hash: 5bd7e079ea58ecb5b4785fbd89ef99dc068970914573180493442dc5844afd0dec8fe1d54ba16a69f7278c35a961d21a
SHA1 hash: a31646b55f6e4e1dd38610162d44d1dea959426e
MD5 hash: 4a7e14c42b702e162e9c6307da83e416
humanhash: alpha-twelve-oranges-kansas
File name:mips.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:302'548 bytes
First seen:2025-09-19 15:37:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:4XxXyFz6QcXgRbRCyekBUXT2ga0aGIOQkp4mQUNJQH:4XY6QygRCXxHFQkDQIJQH
TLSH T12054A40E6A318F3DF7B8873487F74B70975963D216E1DA84D1ACE2021F6064EA51FB68
telfhash t1cc4182280ab817a4a2355c5d085dff27d6a334de3e2a2c238a11d45ee72ef839d24d09
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
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.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-8041698-0
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Creating a file
Runs as daemon
Unmounts file systems
Collects information on the network activity
Mounts file systems
Kills processes
Opens a port
Deletes a file
Deleting a recently created file
Sends data to a server
Connection attempt
Deletes a system binary file
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm bash lolbin
Link:
https://www.filescan.io/uploads/68cd793f254431b688d56961/reports/0a317f35-075b-40bd-a9df-f6744c5bd867/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-19T14:34:00Z UTC
Last seen:
2025-09-19T14:34:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3fc879dc-301d-46de-a303-7d846089d814
Behavior Graph:
Download SVG
%3 guuid=66ee5212-1900-0000-8763-4dea50120000 pid=4688 /usr/bin/sudo guuid=ef1bd313-1900-0000-8763-4dea5c120000 pid=4700 /tmp/sample.bin guuid=66ee5212-1900-0000-8763-4dea50120000 pid=4688->guuid=ef1bd313-1900-0000-8763-4dea5c120000 pid=4700 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bfe12afb-5d1d-4088-a657-91ca457f41cf
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1780846
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Drops files in suspicious directories
Drops invisible ELF files
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
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: 1780846 Sample: mips.urbotnetisass.elf Startdate: 19/09/2025 Architecture: LINUX Score: 100 62 94.154.35.153, 43212 SELECTELRU Ukraine 2->62 64 109.202.202.202, 80 INIT7CH Switzerland 2->64 66 3 other IPs or domains 2->66 74 Antivirus detection for dropped file 2->74 76 Antivirus / Scanner detection for submitted sample 2->76 78 Yara detected Gafgyt 2->78 80 Yara detected Mirai 2->80 10 mips.urbotnetisass.elf 2->10         started        14 udisksd dumpe2fs 2->14         started        16 udisksd dumpe2fs 2->16         started        18 10 other processes 2->18 signatures3 process4 file5 56 /root/.bashrc, ASCII 10->56 dropped 58 /etc/profile, ASCII 10->58 dropped 60 /etc/crontab, ASCII 10->60 dropped 88 Sample tries to persist itself using /etc/profile 10->88 90 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 10->90 92 Sample tries to persist itself using cron 10->92 94 Sample tries to persist itself using System V runlevels 10->94 20 mips.urbotnetisass.elf 10->20         started        signatures6 process7 file8 48 /etc/rc.local, ASCII 20->48 dropped 50 /_dev_shm_.6215_librt.so.1, ELF 20->50 dropped 52 /_dev_shm_.6215_libpthread.so.0, ELF 20->52 dropped 54 7 other malicious files 20->54 dropped 82 Sample tries to set files in /etc globally writable 20->82 84 Writes identical ELF files to multiple locations 20->84 86 Sample tries to persist itself using System V runlevels 20->86 24 mips.urbotnetisass.elf sh 20->24         started        26 mips.urbotnetisass.elf 20->26         started        28 mips.urbotnetisass.elf 20->28         started        30 mips.urbotnetisass.elf 20->30         started        signatures9 process10 process11 32 sh cp 24->32         started        36 mips.urbotnetisass.elf 26->36         started        38 mips.urbotnetisass.elf 28->38         started        40 mips.urbotnetisass.elf 30->40         started        file12 46 /usr/bin/.sh, ELF 32->46 dropped 68 Drops invisible ELF files 32->68 70 Drops files in suspicious directories 32->70 72 Deletes system log files 36->72 42 mips.urbotnetisass.elf 36->42         started        44 mips.urbotnetisass.elf 36->44         started        signatures13 process14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-19 15:40:42 UTC
File Type:
ELF32 Big (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnbms2axxqqxmnczkoyqjhwre3r7qlqb4uvpxjrvmldscmv2wlsa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/250919-s21knavpx3/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Writes file to system bin folder
Deletes system logs
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/10893600-423b-4236-be99-5756644cac39
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/1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4

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 1b42c96817bc2176345953b1049ed126e3f82e01e52afba63562c72132bab2e4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618257/
  
Delivery method
Distributed via web download

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