MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6. 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: 7


Intelligence 7 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6
SHA3-384 hash: 5fbfa26194d4c821aa7a3ddfc74b476b4539888d930360e904e364ea875cb7dd376312748e31c1e60bd52ec1ce5d63e0
SHA1 hash: 830e967a0fdacd3f6cc78ab633496b0c686b2bac
MD5 hash: 434098998bc1a11a413277d0473e6310
humanhash: xray-fix-xray-blossom
File name:flutter.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:266'584 bytes
First seen:2026-08-21 05:14:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:o+cyGAJiSPw1srwTO1IIJTsnWhoGoTbO5CY4RAVTBT0HPL/B6/:o+F3Jg1srwTOOIJT7+m5uIB4HTA/
TLSH T152444B4B77908F91E275C9714AF34AA7ABE9129317E38145E27DDE103E5038C682FFA4
telfhash t1a54141759f3598229ed2c5509ceea322e21ec5291a51ee27cf24854c006d09ef21be9f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 9cce743cdcd606fd7e5d4958a09a777f31e0b63f0df38df81f5a51180ccff2a5
File size (compressed) :137'336 bytes
File size (de-compressed) :266'584 bytes
Format:linux/mips
Packed file: 9cce743cdcd606fd7e5d4958a09a777f31e0b63f0df38df81f5a51180ccff2a5

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Dropper.Mirai-7135897-0
Create hunting rule

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

Unix.Dropper.Mirai-7135925-0
Create hunting rule

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

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

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

Unix.Trojan.Mirai-10058997-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Sends data to a server
Receives data from a server
Runs as daemon
Manages services
Kills processes
Opens a port
Connection attempt
Changes access rights for a written file
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Performs a bruteforce attack in the network
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 dropper expand gcc lolbin masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/6a87dee952dd43629409abb9/reports/dd1205d7-a821-4028-be49-8fd396fa71b4/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/71d8f9e9-7cf8-4905-8a09-e0ff6c7561b9
Behavior Graph:
Download SVG
%3 guuid=1a033833-1900-0000-b649-aeb5790d0000 pid=3449 /usr/bin/sudo guuid=2988a437-1900-0000-b649-aeb57d0d0000 pid=3453 /tmp/sample.bin guuid=1a033833-1900-0000-b649-aeb5790d0000 pid=3449->guuid=2988a437-1900-0000-b649-aeb57d0d0000 pid=3453 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8161a8b8-5571-4ee6-a94f-2a98a0a06e44
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-21 05:15:25 UTC
File Type:
ELF32 Big (SO)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxmypgmxaxfkdv625ypr3qu76thsvsjp4ujcwjfaruomutvkx23a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260821-fxqhnsgq8t/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Modifies systemd
Write file to user bin folder
Modifies Watchdog functionality
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/c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:elf_arm_mips_ko_so
Create hunting rule
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:test_rule_vldslv
Create hunting rule
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:woof_mirai_variant
Create hunting rule
Author:Nokia Deepfield ERT
Description:Detects Woof Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper)
Reference:Internal analysis of sample 6ef4ce02

File information

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

Web download

Mirai

elf 9cce743cdcd606fd7e5d4958a09a777f31e0b63f0df38df81f5a51180ccff2a5

Mirai

elf c5d987999705caa1d7daee1f1dc29ff4cf2ac92fe5122b24a08d1cca4eaabeb6

(this sample)

  
Dropped by
SHA256 9cce743cdcd606fd7e5d4958a09a777f31e0b63f0df38df81f5a51180ccff2a5
  
URLhaus
https://urlhaus.abuse.ch/url/3904709/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 4d35590c66fceecdc4ba7d057b032530

Comments