MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c431f8332dbe66eb827606c9808c8056a4e04e71e58561530d22ffaf8fcec635. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: c431f8332dbe66eb827606c9808c8056a4e04e71e58561530d22ffaf8fcec635
SHA3-384 hash: 908922e297905053addfb3b7f7d9dcf5846fe32ec6b19d764ff822b721b1fc8e8f264e0aa28dc01254e34298494f5dd3
SHA1 hash: 73a8912dba97e931f6ef3af5a1641526d2d90d08
MD5 hash: f86f7d3e84b1e546c1553afd802289bd
humanhash: cardinal-triple-cold-sodium
File name:morte.mpsl
Download: download sample
Signature Mirai
File size:105'976 bytes
First seen:2025-07-13 12:35:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:jtMFqRw+s1WvEdZSr+WxVZ/LKD3jvxq/WrCICm1TvnS3JZ70IccRlLYQfkiEOwR:jtMFqRVcXdZSrTW2ICMPS5xyCKR
TLSH T1A2A3E60AEF610EFBE86FDD3746E90B0525CC551B22A83B7A3574C828F54B14B4AE3974
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 67491ffba2b9e9be26493e06e0c82997d6e3514aa86545909719c76524684067
File size (compressed) :41'780 bytes
File size (de-compressed) :105'976 bytes
Format:linux/mipsel
Packed file: 67491ffba2b9e9be26493e06e0c82997d6e3514aa86545909719c76524684067

Intelligence


File Origin
# of uploads :
1
# of downloads :
19
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Launching a process
Connection attempt
Substitutes an application name
Writes files to system directory
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade
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?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Behavior Graph:
%3 guuid=4c78ebc4-1600-0000-653e-4ef8800c0000 pid=3200 /usr/bin/sudo guuid=fd7edcc9-1600-0000-653e-4ef8810c0000 pid=3201 /tmp/sample.bin guuid=4c78ebc4-1600-0000-653e-4ef8800c0000 pid=3200->guuid=fd7edcc9-1600-0000-653e-4ef8810c0000 pid=3201 execve
Result
Threat name:
Mirai, Xmrig
Detection:
malicious
Classification:
troj.evad.mine
Score:
88 / 100
Signature
Drops files in suspicious directories
Drops invisible ELF files
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
Sends malformed DNS queries
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1735237 Sample: morte.mpsl.elf Startdate: 13/07/2025 Architecture: LINUX Score: 88 35 last.galaxias.cc. [malformed] 2->35 37 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Mirai 2->41 43 Yara detected Xmrig cryptocurrency miner 2->43 10 morte.mpsl.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 45 Sends malformed DNS queries 35->45 process4 signatures5 53 Found strings related to Crypto-Mining 10->53 17 morte.mpsl.elf 10->17         started        process6 process7 19 morte.mpsl.elf 17->19         started        file8 31 /etc/init.d/sysd, POSIX 19->31 dropped 47 Sample tries to set files in /etc globally writable 19->47 49 Drops files in suspicious directories 19->49 51 Sample tries to persist itself using System V runlevels 19->51 23 morte.mpsl.elf sh 19->23         started        25 morte.mpsl.elf 19->25         started        signatures9 process10 process11 27 sh cp 23->27         started        file12 33 /usr/bin/.sh, ELF 27->33 dropped 55 Drops invisible ELF files 27->55 57 Drops files in suspicious directories 27->57 signatures13
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2025-07-13 12:36:23 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai credential_access discovery persistence
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
Write file to user bin folder
Malware Config
C2 Extraction:
last.galaxias.cc
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:unixredflags3
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 c431f8332dbe66eb827606c9808c8056a4e04e71e58561530d22ffaf8fcec635

(this sample)

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments