MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081
SHA3-384 hash: 0a3f33497f0bdf5fc8b2cbb594517dff4c3f563f373e9e0b8f77a6f798a112fbe683a0706a92c6c0e91a897e599e1a84
SHA1 hash: 3eaabff50c7a8d245ed19b1aa66cb0f1c9905a2e
MD5 hash: 3a9fe84279004949c25e891fee730b2c
humanhash: washington-princess-green-skylark
File name:morte.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:98'908 bytes
First seen:2025-11-08 18:42:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:QV2Piyf0X8RwMOGT2zbOu/ksuB+L/b5jcCqnagIUhXe9WjvIEV46m:QV6iV8R6GazyYy+jbxcCBKVx46m
TLSH T10DA32A46BD818F13C6C622B6F7AE018D37167BA8D2EB3103ED24BFA1338659A1D37551
telfhash t13b51abe6fba40bec3be5835491d920199bfc358d1b2030678b2c6b5fc5828c5b12e42b
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 1dbf137ce559af2b55c6d16727671b7799d4886816255d025a2b5be037d680e2
File size (compressed) :42'868 bytes
File size (de-compressed) :98'908 bytes
Format:linux/arm
Packed file: 1dbf137ce559af2b55c6d16727671b7799d4886816255d025a2b5be037d680e2

Intelligence

File Origin
# of uploads :
1
# of downloads :
98
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7355719-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-5607483-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/690f8f42b2332ab627db1e42/reports/7574f912-2323-45f2-bc5f-c24ab771c4cf/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
50
Number of processes launched:
9
Processes remaning?
false
Remote TCP ports scanned:
80,37215
Full report:
https://elfdigest.com/brief/81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-08T16:01:00Z UTC
Last seen:
2025-11-09T23:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/41c72ca7-b3d2-491c-b96e-9e5c9c0a7832
Behavior Graph:
Download SVG
%3 guuid=1ebded65-1800-0000-ace2-9104230d0000 pid=3363 /usr/bin/sudo guuid=9ad48f67-1800-0000-ace2-9104280d0000 pid=3368 /tmp/sample.bin guuid=1ebded65-1800-0000-ace2-9104230d0000 pid=3363->guuid=9ad48f67-1800-0000-ace2-9104280d0000 pid=3368 execve
Gathering data
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1810706
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1810706 Sample: morte.arm.elf Startdate: 08/11/2025 Architecture: LINUX Score: 72 37 Antivirus / Scanner detection for submitted sample 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Mirai 2->41 9 morte.arm.elf 2->9         started        11 python3.8 dpkg 2->11         started        process3 process4 13 morte.arm.elf 9->13         started        15 morte.arm.elf 9->15         started        17 morte.arm.elf 9->17         started        19 2 other processes 9->19 process5 21 morte.arm.elf 13->21         started        23 morte.arm.elf 13->23         started        25 morte.arm.elf 13->25         started        27 morte.arm.elf 13->27         started        process6 29 morte.arm.elf 21->29         started        31 morte.arm.elf 21->31         started        process7 33 morte.arm.elf 29->33         started        35 morte.arm.elf 31->35         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-08 18:43:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qgs76zet5rtfolem4yjdmbwvalwdb22xzgexka7bqot7h7db4caq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/251108-xc1atatrgr/
Malware Config
C2 Extraction:
teamc2.duckdns.org
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_1
Link:
https://app.threat.zone/submission/068990c1-d2a3-4362-9e32-1c1ad00516b9
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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 1dbf137ce559af2b55c6d16727671b7799d4886816255d025a2b5be037d680e2

Mirai

elf 81a5ff6493ec66572c8ce6123606d502ec30eb57c9897503e183a7f3fc61e081

(this sample)

  
Dropped by
SHA256 1dbf137ce559af2b55c6d16727671b7799d4886816255d025a2b5be037d680e2
  
URLhaus
https://urlhaus.abuse.ch/url/3697762/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 63626b701141f171c65f417b0d09541c
  
URLhaus
https://urlhaus.abuse.ch/url/3697941/

Comments