MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 140a32f9588875b6e899c3aeb5bc8febacb2a8dbde360f336d1f5133952600af. 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 13 File information Comments

SHA256 hash: 140a32f9588875b6e899c3aeb5bc8febacb2a8dbde360f336d1f5133952600af
SHA3-384 hash: 2c6812cf2f85d489119cb4cfb99ce62621beb91a2920b3e026447eb14a48ab2c8cc64831da90bbab3576df4b1fb428e1
SHA1 hash: 429f03db285bcec81aedfa8dab3f922958b08845
MD5 hash: b7e40a411f3c95581b82a0bd718c107c
humanhash: single-kilo-river-aspen
File name:Orbt.i686
Download: download sample
Signature Mirai
File size:110'028 bytes
First seen:2026-01-21 08:33:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:1kgY0xrx37/IGvbUkxNqlHgoklWJWySeYDH3gbhB7raQw0X:CZ0dxXRVR5vDH3ChLX
TLSH T110B3399DFA8BC1F5E85704709076B7FFC732E8145061CA4ADBAAEF31C933441962A369
telfhash t1ce5103fb1a6e0de8a7c4a902d35e5f113d5adb7b152033a144a355242267ec240bec39
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 3aca404aad07d2f41b0572148b28433b7b752a77e1fd5fed7bbdc67824e75b12
File size (compressed) :45'784 bytes
File size (de-compressed) :110'028 bytes
Format:linux/i386
Packed file: 3aca404aad07d2f41b0572148b28433b7b752a77e1fd5fed7bbdc67824e75b12

Intelligence


File Origin
# of uploads :
1
# of downloads :
46
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
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
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:
2026-01-21T06:26:00Z UTC
Last seen:
2026-01-21T08:44:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=ab85c128-1a00-0000-8538-9ad40e090000 pid=2318 /usr/bin/sudo guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322 /tmp/sample.bin net guuid=ab85c128-1a00-0000-8538-9ad40e090000 pid=2318->guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=41e2e72c-1a00-0000-8538-9ad414090000 pid=2324 /tmp/sample.bin guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322->guuid=41e2e72c-1a00-0000-8538-9ad414090000 pid=2324 clone guuid=7f3efb59-1b00-0000-8538-9ad4860b0000 pid=2950 /tmp/sample.bin guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322->guuid=7f3efb59-1b00-0000-8538-9ad4860b0000 pid=2950 clone guuid=4c07025a-1b00-0000-8538-9ad4870b0000 pid=2951 /tmp/sample.bin net send-data zombie guuid=a509782c-1a00-0000-8538-9ad412090000 pid=2322->guuid=4c07025a-1b00-0000-8538-9ad4870b0000 pid=2951 clone guuid=37e5ef2c-1a00-0000-8538-9ad415090000 pid=2325 /tmp/sample.bin guuid=41e2e72c-1a00-0000-8538-9ad414090000 pid=2324->guuid=37e5ef2c-1a00-0000-8538-9ad415090000 pid=2325 clone guuid=40f6052d-1a00-0000-8538-9ad416090000 pid=2326 /tmp/sample.bin dns net send-data zombie guuid=41e2e72c-1a00-0000-8538-9ad414090000 pid=2324->guuid=40f6052d-1a00-0000-8538-9ad416090000 pid=2326 clone guuid=40f6052d-1a00-0000-8538-9ad416090000 pid=2326->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 90B 0ecf02bb-0e2c-5ebd-8166-f09908e50581 mirailoversddos.duckdns.org:69 guuid=40f6052d-1a00-0000-8538-9ad416090000 pid=2326->0ecf02bb-0e2c-5ebd-8166-f09908e50581 send: 16B guuid=4c07025a-1b00-0000-8538-9ad4870b0000 pid=2951->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1380B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=4c07025a-1b00-0000-8538-9ad4870b0000 pid=2951->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
68 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1854668 Sample: Orbt.i686.elf Startdate: 21/01/2026 Architecture: LINUX Score: 68 22 mirailoversddos.duckdns.org 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 Yara detected Mirai 2->32 8 Orbt.i686.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Orbt.i686.elf 8->12         started        14 Orbt.i686.elf 8->14         started        16 Orbt.i686.elf 8->16         started        process6 18 Orbt.i686.elf 12->18         started        20 Orbt.i686.elf 12->20         started       
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-01-21 08:34:35 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
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:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Mirai_0cb1699c
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 140a32f9588875b6e899c3aeb5bc8febacb2a8dbde360f336d1f5133952600af

(this sample)

  
Delivery method
Distributed via web download

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