MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 140b91263dd20f5ce9cf948976b148676b18122d78c37702eaaa5a9257dfded5. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments

SHA256 hash: 140b91263dd20f5ce9cf948976b148676b18122d78c37702eaaa5a9257dfded5
SHA3-384 hash: 230441836324891578c43a59e8beba387df39e32796b366087ebf7003767eec765b0f6b99bc4edb3c9c04c6cd47d9eab
SHA1 hash: b0826d0bf615926a8627721e261840c7409d6100
MD5 hash: a21a488ab6afaf4f400f226edeb19000
humanhash: berlin-stairway-mango-asparagus
File name:morte.arm
Download: download sample
Signature Mirai
File size:96'012 bytes
First seen:2025-07-06 05:40:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:EXGMSSMbnPADoFXJdlvqwu7Zcr9DaxQKxbBJRrtA5uFvMX:EXGNSMMD0JdlvqwulKRaxQWhhn0
TLSH T18A932A45FC919652CAC517BBFB2E028E372223A8D2EE3207DD19AF2133CA51B0D7B555
telfhash t10451d0b2ff650adc2fe98184528f782d4efd35be4b0429569a1c9b4bc8834c1f51d817
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 61b934f2e8c35e7f05e6b1f2df22a79ea5e07c24576a03d31334ba544b817cdd
File size (compressed) :41'980 bytes
File size (de-compressed) :96'012 bytes
Format:linux/arm
Packed file: 61b934f2e8c35e7f05e6b1f2df22a79ea5e07c24576a03d31334ba544b817cdd

Intelligence


File Origin
# of uploads :
1
# of downloads :
17
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated
Result
Threat name:
Mirai, Xmrig
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
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
Found strings related to Crypto-Mining
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1729390 Sample: morte.arm.elf Startdate: 06/07/2025 Architecture: LINUX Score: 100 47 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->47 49 34.254.182.186, 443, 54630 AMAZON-02US United States 2->49 59 Antivirus detection for dropped file 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 2 other signatures 2->65 10 morte.arm.elf 2->10         started        13 dash cat 2->13         started        16 gvfsd-fuse fusermount 2->16         started        18 13 other processes 2->18 signatures3 process4 file5 73 Found strings related to Crypto-Mining 10->73 20 morte.arm.elf 10->20         started        22 morte.arm.elf 10->22         started        45 /dev/null, ASCII 13->45 dropped 75 Manipulation of devices in /dev 13->75 77 Sample reads /proc/mounts (often used for finding a writable filesystem) 16->77 signatures6 process7 process8 24 morte.arm.elf 20->24         started        file9 43 /etc/init.d/sysd, POSIX 24->43 dropped 67 Sample tries to set files in /etc globally writable 24->67 69 Drops files in suspicious directories 24->69 71 Sample tries to persist itself using System V runlevels 24->71 28 morte.arm.elf sh 24->28         started        30 morte.arm.elf 24->30         started        signatures10 process11 signatures12 33 sh cp 28->33         started        79 Sample deletes itself 30->79 37 morte.arm.elf 30->37         started        39 morte.arm.elf 30->39         started        process13 file14 41 /usr/bin/.sh, ELF 33->41 dropped 51 Drops invisible ELF files 33->51 53 Drops files in suspicious directories 33->53 55 Manipulation of devices in /dev 37->55 57 Deletes system log files 37->57 signatures15
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-07-06 05:41:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai
Malware Config
C2 Extraction:
abc.galaxias.cc
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7100807-0
YARA:
n/a
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:Linux_Generic_Threat_d94e1020
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 140b91263dd20f5ce9cf948976b148676b18122d78c37702eaaa5a9257dfded5

(this sample)

  
Delivery method
Distributed via web download

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