MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7cd0f53c3618ec5564004d3b1bd0c21386e63699552dadc86b2035ecd16bf49. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments

SHA256 hash: f7cd0f53c3618ec5564004d3b1bd0c21386e63699552dadc86b2035ecd16bf49
SHA3-384 hash: 0c6a85320b0be02b3d86c552d8103d1a12c2a39b473ec20c39a0b8624058b64a0a98a925fb20e25fbcf1f47356ab527a
SHA1 hash: 95facf502b739d5344226d32250d706234760bbd
MD5 hash: f91dfd04b53843a44f2926a8dc2584eb
humanhash: mobile-timing-nitrogen-fillet
File name:kvariant.arm7
Download: download sample
Signature Mirai
File size:186'770 bytes
First seen:2025-10-06 22:49:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:VoPzDtrPtasrVhWWW91LYKmxjmvN19QncFGDugeNUOM/98nuBmBw0EeTTlC:EBLtas5MWW91LYxxS39Qncs/eNpM/98q
TLSH T14F042B56E6418B07C0D2277AFADF42463323AB64D3DB33069924AFF43F8679A4E67501
telfhash t15b4153614a7d852a9a33dce89eedabf1001d93177253ad33ff31c85c5025046d826d8f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
47
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Collects information on the network activity
Creating a file
Connection attempt
Creating a file in the %temp% directory
Kills processes
Sends data to a server
Creating a process from a recently created 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
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gcc masquerade rust
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
84
Number of processes launched:
57
Processes remaning?
true
Remote TCP ports scanned:
23,37215
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-06T20:12:00Z UTC
Last seen:
2025-10-07T20:13:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=98b8b001-5200-0000-08a9-8bcda0030000 pid=928 /usr/bin/sudo guuid=e567e804-5200-0000-08a9-8bcda1030000 pid=929 /tmp/sample.bin guuid=98b8b001-5200-0000-08a9-8bcda0030000 pid=928->guuid=e567e804-5200-0000-08a9-8bcda1030000 pid=929 execve
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
72 / 100
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1790263 Sample: kvariant.arm7.elf Startdate: 07/10/2025 Architecture: LINUX Score: 72 18 109.202.202.202, 80 INIT7CH Switzerland 2->18 20 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->20 22 3 other IPs or domains 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 kvariant.arm7.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 kvariant.arm7.elf 8->14         started        process6 16 kvariant.arm7.elf 14->16         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-10-06 22:50:54 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads process memory
Creates/modifies Cron job
Modifies init.d
Modifies rc script
Executes dropped EXE
Contacts a large (90643) amount of remote hosts
Creates a large amount of network flows
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:ach_202503_elf_Mirai
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:CVE_2017_17215
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 f7cd0f53c3618ec5564004d3b1bd0c21386e63699552dadc86b2035ecd16bf49

(this sample)

  
Delivery method
Distributed via web download

Comments