MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef
SHA3-384 hash: 77d252e0711356f627b20a108f333a0465e4b72e279f71b60e63843eb1fafd69f327bde9bb45e168367e6056123219a0
SHA1 hash: 3d0f6d2630637e6703061ebf79ddfdbf2c6cc84f
MD5 hash: d94f0ae30bb84e341677a3b0e077554e
humanhash: delta-happy-july-finch
File name:morte.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:37'788 bytes
First seen:2025-08-06 18:44:53 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:6d4FyjHdZHOmRW/GneUC3Re8dY4XpfBJr2Dim2UnbcuyD7UHQRjFB:e6kOmZeUC8sJNBJro2Unouy8HypB
TLSH T19503F12ADADC8A44ECD502700EAAEEFA9D344B1F974D49B352DF84331582B6D4B5C3C1
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
File size (compressed) :37'788 bytes
File size (de-compressed) :75'028 bytes
Format:linux/i386
Unpacked file: f2788c0539807b9a24da90ae2585ac10ef7e1d3d8b3cbcb58c833bef8c3729ec

Intelligence

File Origin
# of uploads :
1
# of downloads :
26
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Opens a port
Sends data to a server
Connection attempt
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
87.121.84.111:80/00101010101001
Number of open files:
37
Number of processes launched:
4
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/391c5d42-77de-433b-9695-3b1c08e67a40
Behavior Graph:
Download SVG
%3 guuid=c43a2af7-1c00-0000-3318-fd3713090000 pid=2323 /usr/bin/sudo guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326 /tmp/sample.bin net guuid=c43a2af7-1c00-0000-3318-fd3713090000 pid=2323->guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=69071cfb-1c00-0000-3318-fd3718090000 pid=2328 /tmp/sample.bin guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326->guuid=69071cfb-1c00-0000-3318-fd3718090000 pid=2328 clone guuid=18fcd927-1e00-0000-3318-fd37290b0000 pid=2857 /tmp/sample.bin guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326->guuid=18fcd927-1e00-0000-3318-fd37290b0000 pid=2857 clone guuid=92d1de27-1e00-0000-3318-fd372a0b0000 pid=2858 /tmp/sample.bin net send-data zombie guuid=77c57ffa-1c00-0000-3318-fd3716090000 pid=2326->guuid=92d1de27-1e00-0000-3318-fd372a0b0000 pid=2858 clone guuid=a9db25fb-1c00-0000-3318-fd3719090000 pid=2329 /tmp/sample.bin guuid=69071cfb-1c00-0000-3318-fd3718090000 pid=2328->guuid=a9db25fb-1c00-0000-3318-fd3719090000 pid=2329 clone guuid=72682cfb-1c00-0000-3318-fd371a090000 pid=2330 /tmp/sample.bin dns net send-data zombie guuid=69071cfb-1c00-0000-3318-fd3718090000 pid=2328->guuid=72682cfb-1c00-0000-3318-fd371a090000 pid=2330 clone guuid=72682cfb-1c00-0000-3318-fd371a090000 pid=2330->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 216B dac1a50c-9030-58bd-8b04-b0ceda4107fe boatn1941.ddns.net:12121 guuid=72682cfb-1c00-0000-3318-fd371a090000 pid=2330->dac1a50c-9030-58bd-8b04-b0ceda4107fe send: 40B guuid=92d1de27-1e00-0000-3318-fd372a0b0000 pid=2858->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1080B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=92d1de27-1e00-0000-3318-fd372a0b0000 pid=2858->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39d1a1e2-f1d0-4017-b756-0c1c61ea6cdf
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1751617
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1751617 Sample: morte.x86.elf Startdate: 06/08/2025 Architecture: LINUX Score: 64 22 boatn1941.ddns.net 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 3 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Sample is packed with UPX 2->32 8 morte.x86.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 morte.x86.elf 8->12         started        14 morte.x86.elf 8->14         started        16 morte.x86.elf 8->16         started        process6 18 morte.x86.elf 12->18         started        20 morte.x86.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-06 14:57:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=74ysmpc7imoomrzgxe4asblb2sjujqg53vjduewugyk5v6tncdxq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/250806-xegaqavn12/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
boatn1941.ddns.net
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/8401ae32-136f-4040-9fe7-aeb6df1ad04e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

sh 9450cdae39985a317a0c04828544aa0a6db9df22b7ba50339f1b8b8d459c1e36

Mirai

elf ff31263c5f431ce64726b938090561d49344c0dddd523a12d43615dafa6d10ef

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3597711/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 9450cdae39985a317a0c04828544aa0a6db9df22b7ba50339f1b8b8d459c1e36
  
Dropped by
MD5 7e533afbbeb6273d49d79d4d2e04890b
  
URLhaus
https://urlhaus.abuse.ch/url/3597693/
  
URLhaus
https://urlhaus.abuse.ch/url/3598416/
  
URLhaus
https://urlhaus.abuse.ch/url/3598405/

Comments