MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b
SHA3-384 hash: 9b51e168a0ee381d2386f76e405744b085b8ceae05ed022ee95ed7d7cd4804b226c2a1daab9c25224544b372176cccbb
SHA1 hash: 2692e133b216257a918d68fd76bfbe45add11022
MD5 hash: 9d76472bc7cf04962a676f388c905a17
humanhash: emma-bulldog-minnesota-uncle
File name:morte.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:114'196 bytes
First seen:2025-08-26 09:11:08 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:BqyOQnGSKed2t7a0e1dQikpJ8C28LjRtaWA8KIPKzMs14UIaZJiAtzL9U2+FShgr:BqyOQnGSKeKe1CJ0ISzMFUIa5Ffg74+
TLSH T134B3E809FF610EFBE86FDD3746E90B0525CC651722B83B3A7574D828F54A64B0AE3960
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 b05eb83d4502f8d974ff67d2e6e39eab2854f903990a30e216fee23eb96cf0f4
File size (compressed) :44'284 bytes
File size (de-compressed) :114'196 bytes
Format:linux/mipsel
Packed file: b05eb83d4502f8d974ff67d2e6e39eab2854f903990a30e216fee23eb96cf0f4

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sends data to a server
Deletes a file
Sets a written file as executable
Receives data from a server
Launching a process
Connection attempt
Runs as daemon
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin obfuscated remote threat
Link:
https://www.filescan.io/uploads/68ad7a3f28a89d9dd4f45eee/reports/e263dce7-43d4-4485-b190-43503141ca0b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/61eee618-d443-4a60-8d7c-cc6721b9172a
Behavior Graph:
Download SVG
%3 guuid=335b6816-1700-0000-ea4b-924e6b0d0000 pid=3435 /usr/bin/sudo guuid=4db8f318-1700-0000-ea4b-924e740d0000 pid=3444 /tmp/sample.bin guuid=335b6816-1700-0000-ea4b-924e6b0d0000 pid=3435->guuid=4db8f318-1700-0000-ea4b-924e740d0000 pid=3444 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/58e6656c-9c70-4f4d-8c75-e04a86d7c535
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1765261
Signature
Drops files in suspicious directories
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1765261 Sample: morte.mpsl.elf Startdate: 26/08/2025 Architecture: LINUX Score: 80 31 109.202.202.202, 80 INIT7CH Switzerland 2->31 33 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->33 35 3 other IPs or domains 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Mirai 2->39 41 Yara detected Xmrig cryptocurrency miner 2->41 10 morte.mpsl.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 signatures5 49 Found strings related to Crypto-Mining 10->49 17 morte.mpsl.elf 10->17         started        process6 process7 19 morte.mpsl.elf 17->19         started        file8 29 /etc/init.d/sysd, POSIX 19->29 dropped 43 Sample tries to set files in /etc globally writable 19->43 45 Drops files in suspicious directories 19->45 47 Sample tries to persist itself using System V runlevels 19->47 23 morte.mpsl.elf sh 19->23         started        25 morte.mpsl.elf 19->25         started        signatures9 process10 process11 27 sh cp 23->27         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-26 09:11:34 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wfryzwcpsonp5bka672bxvd2nbe2tpclozufrwu7mzwijwzjfuvq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery persistence
Link:
https://tria.ge/reports/250826-k5wrwaw1at/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/82cc4c04-2b8c-4d98-9d8e-f4279e5ec2e6
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/b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b

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: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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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 b05eb83d4502f8d974ff67d2e6e39eab2854f903990a30e216fee23eb96cf0f4

Mirai

elf b1638cd84f939afe8540f7f41bd47a6849a9bc4b766858da9f666c84db292d2b

(this sample)

  
Dropped by
SHA256 b05eb83d4502f8d974ff67d2e6e39eab2854f903990a30e216fee23eb96cf0f4
  
URLhaus
https://urlhaus.abuse.ch/url/3608059/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 816ec4be64849a6270a47077f1be3d98
  
URLhaus
https://urlhaus.abuse.ch/url/3611955/
  
URLhaus
https://urlhaus.abuse.ch/url/3612718/

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