MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528
SHA3-384 hash: 4bbcbe7a8fe6d7b66d913de11343303f4285056e3a5950a3a4a51b8c303cf004c2e39fd133b4fc1aef1e0b064934aaa2
SHA1 hash: ed4fd84c9fa70edea238cdce212c81443f49cba2
MD5 hash: 90424fa2de6458b84608af425919805d
humanhash: cardinal-arkansas-missouri-lemon
File name:ub8ehJSePAfc9FYqZIT6.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:87'348 bytes
First seen:2025-12-04 06:32:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Gpn2EgaNGvcV+2sE/7iMPUNBREZEfSHYMac6f3cIIhniT4Bi9gn7O45zYtr:BVE+2dmTEZCSHYMactW4Bi9gnS4V0r
TLSH T12383285AF9818B11D4C5127AFA1E164E371347F8E3DE72239E24AF3037CA52B0E6B855
telfhash t1b4011e640e8a05cd98bc4e8580dc7014ba2e3876fc3214294f777b154022ad23738409
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 7e70e33fd40d93084c8879ee80eefc22718a5ed210b94f4fb31e8f79d4392005
File size (compressed) :40'348 bytes
File size (de-compressed) :87'348 bytes
Format:linux/arm
Packed file: 7e70e33fd40d93084c8879ee80eefc22718a5ed210b94f4fb31e8f79d4392005

Intelligence

File Origin
# of uploads :
1
# of downloads :
38
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/739cf069-b588-4348-88ba-302274e2d332/
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.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-7136013-0
Create hunting rule

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

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

Unix.Dropper.Mirai-7136057-0
Create hunting rule

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

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade rust
Link:
https://www.filescan.io/uploads/69312b32bc15eab491f40f4a/reports/ea140034-4978-486d-b354-3f07b3aedb63/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-04T04:50:00Z UTC
Last seen:
2025-12-04T06:22:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528/results?tab=lookup
Gathering data
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1826145
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 06:33:19 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qesjuaq5jfssyvam3sc7dov67uhpb652piipri5sld3ikqpcmuua._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd
Link:
https://tria.ge/reports/251204-hbbthayrep/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/0a71059f-51a5-4493-8f43-2d9bfc52c942
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/81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528

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
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
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 7e70e33fd40d93084c8879ee80eefc22718a5ed210b94f4fb31e8f79d4392005

Mirai

elf 81249a021d49652c540cdc85f1babefd0ef0fbba7a10f8a3b258f68541e26528

(this sample)

  
Dropped by
SHA256 7e70e33fd40d93084c8879ee80eefc22718a5ed210b94f4fb31e8f79d4392005
  
URLhaus
https://urlhaus.abuse.ch/url/3724768/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3724797/
  
URLhaus
https://urlhaus.abuse.ch/url/3724805/
  
Dropped by
MD5 e3c94ca26fec84f66276bfa0c92e4583

Comments