MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 791c77091b18dd025fb1270b5e49916b93f9310692530f293531a48e0c91e48e. 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 17 File information Comments

SHA256 hash: 791c77091b18dd025fb1270b5e49916b93f9310692530f293531a48e0c91e48e
SHA3-384 hash: f97aad58b414bed39963416bf7e870068eba0d77b5e614a4760d11d461c4b2a8291777208f1ef38885cb4d437f03a4c3
SHA1 hash: 8d010987b65131fe8ad456bcc3e02ec06a4df03a
MD5 hash: e227b22a8c876289101b08caba48f086
humanhash: sink-dakota-robert-tango
File name:Orbt.x86_64
Download: download sample
Signature Mirai
File size:155'688 bytes
First seen:2026-01-21 07:29:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:6uFWknspPXz4YBAqWie8E4Y/AqRyv1e5aQxaOnG:GFw3/bRT/MO
TLSH T185E3390AB4CCC4FDC8D9D1785BBEB526E931FC5D127CB21B27C4AA221A9FE601B1D614
telfhash t17b51aba13d562e54a1e7a736734be6d8a8310a2105e170f4de6368d6ce037c80ef74b2
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 2e97b806c426ac28a8782964bfcac48e93955635b70c12ac283d3f717ef12b70
File size (compressed) :57'984 bytes
File size (de-compressed) :155'688 bytes
Format:linux/amd64
Packed file: 2e97b806c426ac28a8782964bfcac48e93955635b70c12ac283d3f717ef12b70

Intelligence


File Origin
# of uploads :
1
# of downloads :
50
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:
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.64.le
First seen:
2026-01-21T04:37:00Z UTC
Last seen:
2026-01-21T08:44:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Status:
terminated
Behavior Graph:
%3 guuid=e0f53b34-1b00-0000-c141-11bd910c0000 pid=3217 /usr/bin/sudo guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218 /tmp/sample.bin net guuid=e0f53b34-1b00-0000-c141-11bd910c0000 pid=3217->guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=6c38ce37-1b00-0000-c141-11bd930c0000 pid=3219 /tmp/sample.bin guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218->guuid=6c38ce37-1b00-0000-c141-11bd930c0000 pid=3219 clone guuid=f83ba862-1c00-0000-c141-11bdc40e0000 pid=3780 /tmp/sample.bin guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218->guuid=f83ba862-1c00-0000-c141-11bdc40e0000 pid=3780 clone guuid=e733ac62-1c00-0000-c141-11bdc50e0000 pid=3781 /tmp/sample.bin net send-data zombie guuid=f1556037-1b00-0000-c141-11bd920c0000 pid=3218->guuid=e733ac62-1c00-0000-c141-11bdc50e0000 pid=3781 clone guuid=733cd537-1b00-0000-c141-11bd940c0000 pid=3220 /tmp/sample.bin guuid=6c38ce37-1b00-0000-c141-11bd930c0000 pid=3219->guuid=733cd537-1b00-0000-c141-11bd940c0000 pid=3220 clone guuid=d758e337-1b00-0000-c141-11bd950c0000 pid=3221 /tmp/sample.bin dns net send-data zombie guuid=6c38ce37-1b00-0000-c141-11bd930c0000 pid=3219->guuid=d758e337-1b00-0000-c141-11bd950c0000 pid=3221 clone guuid=d758e337-1b00-0000-c141-11bd950c0000 pid=3221->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 45B 0ecf02bb-0e2c-5ebd-8166-f09908e50581 mirailoversddos.duckdns.org:69 guuid=d758e337-1b00-0000-c141-11bd950c0000 pid=3221->0ecf02bb-0e2c-5ebd-8166-f09908e50581 send: 10B guuid=e733ac62-1c00-0000-c141-11bdc50e0000 pid=3781->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1242B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=e733ac62-1c00-0000-c141-11bdc50e0000 pid=3781->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Result
Threat name:
Gafgyt, Mirai
Detection:
malicious
Classification:
troj
Score:
76 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1854593 Sample: Orbt.x86_64.elf Startdate: 21/01/2026 Architecture: LINUX Score: 76 26 mirailoversddos.duckdns.org 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 4 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected Gafgyt 2->36 38 Yara detected Mirai 2->38 8 Orbt.x86_64.elf 2->8         started        10 dash rm 2->10         started        12 dash cut 2->12         started        14 9 other processes 2->14 signatures3 40 Uses dynamic DNS services 26->40 process4 process5 16 Orbt.x86_64.elf 8->16         started        18 Orbt.x86_64.elf 8->18         started        20 Orbt.x86_64.elf 8->20         started        process6 22 Orbt.x86_64.elf 16->22         started        24 Orbt.x86_64.elf 16->24         started       
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-01-21 07:30:57 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 24 (58.33%)
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
Malware Config
C2 Extraction:
mirailoversddos.duckdns.org
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_Gafgyt_0cd591cd
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
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 791c77091b18dd025fb1270b5e49916b93f9310692530f293531a48e0c91e48e

(this sample)

  
Delivery method
Distributed via web download

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