MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25. 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: 8


Intelligence 8 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25
SHA3-384 hash: 95f23eb8544743d4bb7b1a5bef546e1b10f5d2be255d3b3a775fb25f439f17bc21da02357a1378fc691e6ea70ba3e461
SHA1 hash: 6e40d24f756705b989af146d84efddf129e07d1e
MD5 hash: de9075eb1b14ab4ac2940a3970115307
humanhash: quiet-romeo-winner-johnny
File name:kworkerd0
Download: download sample
Signature Mirai
Create hunting rule
File size:7'745'720 bytes
First seen:2026-02-07 10:56:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:At2tJ5V63exbMhy8sHT8QPkX9EiTyWqNxsbpCrO3hTiraFQGyG4Gk7nTCQXMP3Cy:9tJ5U8Yy5TiR2rOhTgaFQT2W6EW
TLSH T1B3762940FACF14F6E9075D3144BBA22F23321D058B25DBD7EA447F2AF97B5A5193220A
telfhash t18ae2bf7305aca8ec63f04407936f7660cef6e0b716f069f115e6b8d09672d83a636878
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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:DDOSAgent elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 36a1f476383b061b49cc48bfc8fa14c117269daa82f856540a3b325df1d6042d
File size (compressed) :2'228'888 bytes
File size (de-compressed) :7'745'720 bytes
Format:linux/i386
Packed file: 36a1f476383b061b49cc48bfc8fa14c117269daa82f856540a3b325df1d6042d

Intelligence

File Origin
# of uploads :
1
# of downloads :
56
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-10058922-0
Create hunting rule

Unix.Trojan.Mirai-10059005-0
Create hunting rule

Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-02-06T07:54:00Z UTC
Last seen:
2026-02-07T07:23:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7c8f0c25-893d-456c-9766-b59cd8107db8
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1865157
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1865157 Sample: kworkerd0.elf Startdate: 07/02/2026 Architecture: LINUX Score: 48 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 109.202.202.202, 80 INIT7CH Switzerland 2->21 23 3 other IPs or domains 2->23 25 Multi AV Scanner detection for submitted file 2->25 7 kworkerd0.elf 2->7         started        9 python3.8 dpkg 2->9         started        signatures3 process4 process5 11 kworkerd0.elf pgrep 7->11         started        13 kworkerd0.elf pgrep 7->13         started        15 kworkerd0.elf pgrep 7->15         started        17 kworkerd0.elf 7->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25/
Threat name:
Linux.Trojan.DDOSAgent
Create hunting rule
Status:
Malicious
First seen:
2026-02-06 12:49:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6fwrzu76z45k3m7tv3pbvgtklqvbgycs3zf5zb6wnen7fs7tusq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260207-m1yrsabx9h/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Reads CPU attributes
Enumerates running processes
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25

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_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:linux_protocol_doh
Create hunting rule
Author:@_lubiedo
Description:DNS-over-HTTPS yara rule
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Mirai

elf 36a1f476383b061b49cc48bfc8fa14c117269daa82f856540a3b325df1d6042d

Mirai

elf 778b68e69ff679d56d9f9d76f0d4d352e1509b0296f25ee43eb348df965f9d25

(this sample)

  
Dropped by
SHA256 36a1f476383b061b49cc48bfc8fa14c117269daa82f856540a3b325df1d6042d
  
URLhaus
https://urlhaus.abuse.ch/url/3773577/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 060c7a0d225a481dc800f8cbe00445d3

Comments