MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5. 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


Gafgyt


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5
SHA3-384 hash: cd49f862f3cd03336c759610b225bb141d9e26318767dbb0627fa918a95a03a44b02ca0c449a2b81916f99b49cc73f53
SHA1 hash: d3e24065c78376e44c1f5f2367a2e94f4160ce4d
MD5 hash: 4742f53adec4109283cfdb4f044970a0
humanhash: april-juliet-edward-lithium
File name:top1miku.mips
Download: download sample
Signature Gafgyt
Create hunting rule
File size:223'736 bytes
First seen:2025-07-26 18:04:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:q+mUXRk+lOf7vGigDopN/Yd50WDjbh3B9fzSc2YAfwV8ZlBiXYUqBD:5mIK+lOTvGNDiWDjZGrr4VcBioBBD
TLSH T1DF24B84E6E328F7DF768873447B78A20976933D627E1D684D2ACD1105F6028E641FFA8
telfhash t18341b158097407f0a7656c5d49ddff76d5a330db7e162c238e10e8aaeb79a835d10c0c
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
22
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-8041698-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Runs as daemon
Deletes a file
Sends data to a server
Connection attempt
Launching a process
Writes files to system directory
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/68851900c477a9ec31ea6373/reports/5fafca52-878e-4648-abcd-bf3198727072/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
196.251.73.115/HBTs
Number of open files:
153
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
2323,37215,23
Full report:
https://elfdigest.com/brief/a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/72d95cd9-7183-4cc2-b50f-00baff297a85
Behavior Graph:
Download SVG
%3 guuid=0e15a226-1a00-0000-cc09-50df530a0000 pid=2643 /usr/bin/sudo guuid=9ff8f628-1a00-0000-cc09-50df5a0a0000 pid=2650 /tmp/sample.bin guuid=0e15a226-1a00-0000-cc09-50df530a0000 pid=2643->guuid=9ff8f628-1a00-0000-cc09-50df5a0a0000 pid=2650 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4c4ff366-5c98-40d2-92a7-70532acc1d5f
Result
Threat name:
Gafgyt, Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1744742
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Gafgyt
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1744742 Sample: top1miku.mips.elf Startdate: 26/07/2025 Architecture: LINUX Score: 100 44 164.110.213.51 WSDOT-ASNUS United States 2->44 46 190.46.122.17 VTRBANDAANCHASACL Chile 2->46 48 98 other IPs or domains 2->48 50 Antivirus detection for dropped file 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 3 other signatures 2->56 10 top1miku.mips.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 signatures5 66 Found strings related to Crypto-Mining 10->66 17 top1miku.mips.elf 10->17         started        process6 process7 19 top1miku.mips.elf 17->19         started        file8 40 /etc/init.d/sysd, POSIX 19->40 dropped 58 Sample tries to set files in /etc globally writable 19->58 60 Drops files in suspicious directories 19->60 62 Sample tries to persist itself using System V runlevels 19->62 23 top1miku.mips.elf sh 19->23         started        25 top1miku.mips.elf 19->25         started        signatures9 process10 signatures11 28 sh cp 23->28         started        64 Sample deletes itself 25->64 32 top1miku.mips.elf sh 25->32         started        34 top1miku.mips.elf sh 25->34         started        36 top1miku.mips.elf sh 25->36         started        38 7 other processes 25->38 process12 file13 42 /usr/bin/.sh, ELF 28->42 dropped 68 Drops invisible ELF files 28->68 70 Drops files in suspicious directories 28->70 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Gafgyt
Link:
https://tip.neiki.dev/file/a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-07-25 19:31:30 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 34 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uro7oxzg4nanhdnqak5r57736irqsduvru6itmyc5drss2tq4ssq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access defense_evasion discovery persistence
Link:
https://tria.ge/reports/250726-wphe4abj3t/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Creates a large amount of network flows
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Deletes itself
File and Directory Permissions Modification
Contacts a large (8566) amount of remote hosts
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-8041698-0
YARA:
n/a
Link:
https://app.threat.zone/submission/b5302b36-021c-4131-ba52-82cab4d58055
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/a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5

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
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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

Gafgyt

elf a45df75f26e340d38db002bb1efffbf223090e958d3c89b302e8e3296a70e4a5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3590428/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments