MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf7b5b43ccd01f641cd0b6e31ffec6107ee7024de6cc06c6509e98b287af9cf4. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf7b5b43ccd01f641cd0b6e31ffec6107ee7024de6cc06c6509e98b287af9cf4
SHA3-384 hash: 253bb8f69490a0f176a715afd6e8fdbd302eb95b0e0d4fefa0009be309689e1fb8286d1a80ad865a10846a5b67bdf796
SHA1 hash: 89c8f9b407074eb3c67fe20bc5ead984457b3a0f
MD5 hash: 3dd856ed7b3887c48a540ad5d7c27318
humanhash: snake-pennsylvania-eighteen-one
File name:arm4t
Download: download sample
Signature Mirai
Create hunting rule
File size:96'500 bytes
First seen:2025-12-03 02:08:29 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:X7nptbirnRSmFcGIOFMULG3coDh93/IuoWBOMm75ZllXBiynSqbjF7Et:arRSmFPIoMULG3co1lXoWBOMmDFnpPFs
TLSH T15B93188AFDC29A02D9D115BBBE2E515A334767B8E3EA3213DD14172033DAA5F0F36506
telfhash t12ad0a76549a300c837d09345c09ef33a93ec7d3e0b4020c550d4aa0900732c1b04a505
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
25
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/63d87d86-e921-4277-9d53-4c37f233a915
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1824969
Signature
Connects to many ports of the same IP (likely port scanning)
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1824969 Sample: arm4t.elf Startdate: 03/12/2025 Architecture: LINUX Score: 48 26 195.177.94.107, 23451, 43234 DINET-ASRU Ukraine 2->26 28 109.202.202.202, 80 INIT7CH Switzerland 2->28 30 3 other IPs or domains 2->30 32 Connects to many ports of the same IP (likely port scanning) 2->32 9 arm4t.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        16 6 other processes 2->16 signatures3 process4 signatures5 38 Sample tries to kill multiple processes (SIGKILL) 9->38 18 arm4t.elf 9->18         started        process6 process7 20 arm4t.elf 18->20         started        signatures8 34 Sample tries to kill multiple processes (SIGKILL) 20->34 23 arm4t.elf 20->23         started        process9 signatures10 36 Sample tries to kill multiple processes (SIGKILL) 23->36
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cf7b5b43ccd01f641cd0b6e31ffec6107ee7024de6cc06c6509e98b287af9cf4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf7b5b43ccd01f641cd0b6e31ffec6107ee7024de6cc06c6509e98b287af9cf4/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 02:20:20 UTC
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z55vwq6m2apwihgqw3rr77wgcb7ooasn43ganrsqt2mlfb5ptt2a._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
discovery
Link:
https://tria.ge/reports/251203-ck8lyadr5y/
Behaviour
Reads runtime system information
Changes its process name
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3ffc1c74-89d1-474f-bc10-26b8ae11cc28
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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
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 cf7b5b43ccd01f641cd0b6e31ffec6107ee7024de6cc06c6509e98b287af9cf4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3723763/
  
Delivery method
Distributed via web download

Comments