MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb
SHA3-384 hash: 5057381924f2c839b6a10d2be7afa8f2471023c1442ea831af1b34900ab2000eb811d10877a0058a9da15f8e0989489c
SHA1 hash: bff6f8d3f08b94d5144282dca30e306a71754e62
MD5 hash: 7b68e080f7981484da3d854fc506c75b
humanhash: east-nevada-eighteen-fix
File name:sora.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:88'720 bytes
First seen:2025-10-14 08:35:59 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:NYxbiIEXLbY+rWU87fvZH0vKJJ56BbFNl1LGKjMiXzG+a:N0bY7lmZH0iL5iNl5GKjVXz3a
TLSH T16F83A44D6F319F7DFBA8C73857B79A506608338A22E1D485D1ACEB060E6024E741FFA5
telfhash t1d801c96c8eb423e49a368d5a046defa6e1b030da07226c274f15a96caabdc415e05c0d
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 bb4e7b660057f5d9126397c845c9c6061e9c8658a3313b178cc189f70cea0bb0
File size (compressed) :29'412 bytes
File size (de-compressed) :89'824 bytes
Format:linux/mips
Packed file: bb4e7b660057f5d9126397c845c9c6061e9c8658a3313b178cc189f70cea0bb0

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

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

Unix.Dropper.Mirai-7135890-0
Create hunting rule

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

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

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

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

Unix.Dropper.Mirai-7135939-0
Create hunting rule

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

Unix.Dropper.Mirai-7136025-0
Create hunting rule

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

Unix.Trojan.Mirai-9819563-0
Create hunting rule

Unix.Trojan.Mirai-9820623-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
Connection attempt
Runs as daemon
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/68ee0bf171883144ef35f2e0/reports/ebda74ea-a794-4c4b-bc31-978675b2438b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
3
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Mirai 38.49.29.135:1312
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-10-14T06:44:00Z UTC
Last seen:
2025-10-15T12:48:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/86bb1a90-5392-4a5b-93b2-b9757eeba21d
Behavior Graph:
Download SVG
%3 guuid=411efb05-1a00-0000-07c8-5450430a0000 pid=2627 /usr/bin/sudo guuid=e092cb08-1a00-0000-07c8-54504e0a0000 pid=2638 /tmp/sample.bin guuid=411efb05-1a00-0000-07c8-5450430a0000 pid=2627->guuid=e092cb08-1a00-0000-07c8-54504e0a0000 pid=2638 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f1c0221f-9f3b-44a3-833f-8f49c7d8a34e
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1794592
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1794592 Sample: sora.mips.elf Startdate: 14/10/2025 Architecture: LINUX Score: 80 24 94.166.124.167 WINDTRE-ASIT Italy 2->24 26 93.77.9.120 VOLIA-ASUA Ukraine 2->26 28 99 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Yara detected Mirai 2->34 8 sora.mips.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 process4 process5 12 sora.mips.elf 8->12         started        14 sora.mips.elf 8->14         started        16 sora.mips.elf 8->16         started        process6 18 sora.mips.elf 12->18         started        20 sora.mips.elf 12->20         started        22 sora.mips.elf 12->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-14 08:40:45 UTC
File Type:
ELF32 Big (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q56vnionxexg7sdd2aruigpdpsvae2xzo2wqpw7qrf4zwoaidd5q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora defense_evasion discovery
Link:
https://tria.ge/reports/251014-kjl1jsgl5t/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Modifies Watchdog functionality
Contacts a large (47621) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
botnet mirai Unix.Dropper.Mirai-7135890-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_2
Link:
https://app.threat.zone/submission/84bbe237-5a9d-4542-b219-566e0f3379c4
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/877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
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

File information

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

Web download

Mirai

elf bb4e7b660057f5d9126397c845c9c6061e9c8658a3313b178cc189f70cea0bb0

Mirai

elf 877d56a1cdb92e6fc863d0234419e37caa026af976ad07dbf089799b380818fb

(this sample)

  
Dropped by
SHA256 bb4e7b660057f5d9126397c845c9c6061e9c8658a3313b178cc189f70cea0bb0
  
URLhaus
https://urlhaus.abuse.ch/url/3677629/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 dde9bcf8c84307b527d1da8c07a58dab

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