MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d76aeabe006379df872ab41367714db085d4696ac7d6ef28cd965352e8df0ff6. 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 12 File information Comments

SHA256 hash: d76aeabe006379df872ab41367714db085d4696ac7d6ef28cd965352e8df0ff6
SHA3-384 hash: 6e3a068f7725a66e01a20204c38a84fbec3714cfd6f49d0f95b525891aec5f6d36c644b666a7d70cf6236d4b7d1dcc8a
SHA1 hash: 4f49b9e517ed1238aab17bf31627cc71050ea8de
MD5 hash: 3bd5641eca5d4203aa00c9d572c1d2d5
humanhash: connecticut-triple-mars-mountain
File name:.ksysd
Download: download sample
Signature Mirai
File size:89'668 bytes
First seen:2025-08-20 14:39:27 UTC
Last seen:2025-08-20 20:37:10 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:OUOWKJAyWxgv7q7b3maO0NETgk1b3WD3Km7937q5U1S2vTRHH:OUOtJpWxgeP3maPa51b3WKm5LyU8GV
TLSH T1E7935CC5F283D4F5EC4705B16137EB335B32E0B92119FA43D3A96972EC91811EA26B9C
telfhash t1cc5106f66d7a08fcb7d4a808c70f1ad33a28d63b095176b405b7a8a933f7e4180a5c35
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
2
# of downloads :
31
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
DNS request
Connection attempt
Runs as daemon
Substitutes an application name
Deletes a system binary file
Status:
terminated
Behavior Graph:
%3 guuid=034bbfeb-1900-0000-85ff-414c37130000 pid=4919 /usr/bin/sudo guuid=1e4fcaed-1900-0000-85ff-414c41130000 pid=4929 /tmp/sample.bin delete-file net guuid=034bbfeb-1900-0000-85ff-414c37130000 pid=4919->guuid=1e4fcaed-1900-0000-85ff-414c41130000 pid=4929 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=1e4fcaed-1900-0000-85ff-414c41130000 pid=4929->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932 /tmp/sample.bin dns net send-data zombie guuid=1e4fcaed-1900-0000-85ff-414c41130000 pid=4929->guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932 clone guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 44B b0d3501b-a874-57bf-8d50-e36cba1b2c67 phulocnhat2005.duckdns.org:42597 guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932->b0d3501b-a874-57bf-8d50-e36cba1b2c67 send: 7B guuid=d7bb3aee-1900-0000-85ff-414c45130000 pid=4933 /tmp/sample.bin guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932->guuid=d7bb3aee-1900-0000-85ff-414c45130000 pid=4933 clone guuid=e34745ee-1900-0000-85ff-414c46130000 pid=4934 /tmp/sample.bin guuid=f7072fee-1900-0000-85ff-414c44130000 pid=4932->guuid=e34745ee-1900-0000-85ff-414c46130000 pid=4934 clone
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
96 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1761138 Sample: .ksysd.elf Startdate: 20/08/2025 Architecture: LINUX Score: 96 22 phulocnhat2005.duckdns.org 2->22 24 phulocnhat2005.duckdns.org 160.30.21.27, 36830, 36832, 42597 SINET-ASResearchOrganizationofInformationandSystemsN unknown 2->24 26 4 other IPs or domains 2->26 28 Suricata IDS alerts for network traffic 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 36 4 other signatures 2->36 8 .ksysd.elf 2->8         started        10 gnome-session-binary sh gsd-rfkill 2->10         started        12 dash rm 2->12         started        14 4 other processes 2->14 signatures3 34 Uses dynamic DNS services 22->34 process4 process5 16 .ksysd.elf 8->16         started        process6 18 .ksysd.elf 16->18         started        20 .ksysd.elf 16->20         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-08-20 14:41:45 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
linux persistence rootkit
Behaviour
Write file to user bin folder
Loads a kernel module
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-9441505-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3 Linux_Gafgyt_May_2024
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: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:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Author:Elastic Security
Rule name:Mal_LNX_Mirai_Botnet_ELF
Author:Phatcharadol Thangplub
Description:Use to detect Mirai botnet, and there variants.
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 d76aeabe006379df872ab41367714db085d4696ac7d6ef28cd965352e8df0ff6

(this sample)

  
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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::FindFirstFileW
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertDuplicateCertificateContext
CRYPT32.dll::CertEnumCertificatesInStore
CRYPT32.dll::CertFindCertificateInStore
CRYPT32.dll::CertFreeCertificateContext
CRYPT32.dll::CertGetCertificateContextProperty
CRYPT32.dll::CertOpenStore
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA

Comments