MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47b6ecba4e77e4fce84fe768b11d8bde2936938c2ae07a35aa9aa8f7fe6fe192. 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



Kaiji


Vendor detections: 11


Intelligence 11 IOCs YARA 19 File information Comments

SHA256 hash: 47b6ecba4e77e4fce84fe768b11d8bde2936938c2ae07a35aa9aa8f7fe6fe192
SHA3-384 hash: 07a51322cb228e81876aba6ff5cf01ba568f2752dda807e87520045e7dc09eb7ae88d55ba09cd48890367aa635521689
SHA1 hash: d9a071c518c2c936f07fab404093f3724fb4da4e
MD5 hash: adabc3efdce4ff0451de47a82d297269
humanhash: massachusetts-speaker-maryland-mississippi
File name:linux_386
Download: download sample
Signature Kaiji
File size:1'916'928 bytes
First seen:2026-04-11 18:22:25 UTC
Last seen:2026-04-12 11:33:18 UTC
File type: elf
MIME type:application/x-executable
ssdeep 24576:ae9ufJvk4gQjMNRfktnsIXvZFyD9i+MPCIxyuzNqssZXJjIbdYVVMtIwWz1v:WYMnwRO4ssPkd5Wz1
TLSH T1D4951711F98B54F2E9071A3104AFA26F27319D054F34EBC7EA40BB6AFD776D20932259
telfhash t14552ae732a6d58ec77f04812869b7120cea6e02b16f039724df76090eb73d535b7a9b4
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:elf kaiji

Intelligence


File Origin
# of uploads :
2
# of downloads :
59
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes the time when the file was created, accessed, or modified
Manages services
Receives data from a server
Sends data to a server
Launching a process
Connection attempt
Creates directories in a system directory
Sets a written file as executable
Creating a file
Mounts file systems
Runs as daemon
Creating a process from a recently created file
Locks files
Writes files to system directory
Replaces system binary files
Creates or modifies files in /cron to set up autorun
Writes files to system subdirectory
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
ares base64 crypto golang kaiji
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-11T15:29:00Z UTC
Last seen:
2026-04-12T09:24:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Linux.Agent.ne
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.evad
Score:
84 / 100
Signature
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to set files in /etc globally writable
Suricata IDS alerts for network traffic
Uses IRC for communication with a C&C
Yara detected Kaiji
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1896919 Sample: linux_386.elf Startdate: 11/04/2026 Architecture: LINUX Score: 84 93 s4.quicklyspeed.com 176.65.149.237, 53538, 8080 PALTEL-ASPALTELAutonomousSystemPS Germany 2->93 95 183.236.97.73, 22 CMNET-GUANGDONG-APChinaMobilecommunicationscorporation China 2->95 97 www.google.com 2->97 99 Suricata IDS alerts for network traffic 2->99 101 Multi AV Scanner detection for submitted file 2->101 103 Yara detected Kaiji 2->103 105 Uses IRC for communication with a C&C 2->105 11 linux_386.elf 2->11         started        13 systemd cron 2->13         started        15 systemd System.mod 2->15         started        17 5 other processes 2->17 signatures3 process4 process5 19 linux_386.elf linux_386.elf 11->19         started        23 cron 13->23         started        25 System.mod System.mod 15->25         started        27 System.mod System.mod 17->27         started        file6 83 /etc/profile.d/gateway.sh, Bourne-Again 19->83 dropped 85 /etc/profile.d/bash_cfg.sh, Bourne-Again 19->85 dropped 87 /etc/init.d/x11-common, POSIX 19->87 dropped 89 44 other files (43 malicious) 19->89 dropped 107 Sample tries to set files in /etc globally writable 19->107 109 Sample tries to persist itself using /etc/profile 19->109 111 Drops files in suspicious directories 19->111 29 linux_386.elf bash 19->29         started        33 linux_386.elf bash 19->33         started        35 linux_386.elf service systemctl 19->35         started        39 6 other processes 19->39 37 cron sh 23->37         started        signatures7 process8 file9 91 /etc/crontab, ASCII 29->91 dropped 113 Sample tries to persist itself using cron 29->113 41 bash 32676 33->41         started        43 service 35->43         started        45 service basename 35->45         started        47 service basename 35->47         started        49 service systemctl 35->49         started        51 sh .mod 37->51         started        53 service 39->53         started        55 bash systemctl 39->55         started        57 9 other processes 39->57 signatures10 process11 process12 59 32676 opt.services.cfg 41->59         started        61 32676 opt.services.cfg 41->61         started        63 32676 sleep 41->63         started        75 2 other processes 41->75 65 service systemctl 43->65         started        67 service sed 43->67         started        69 .mod libgdi.so.0.8.1 51->69         started        71 service systemctl 53->71         started        73 service sed 53->73         started        process13 77 opt.services.cfg opt.services.cfg 59->77         started        79 opt.services.cfg opt.services.cfg 61->79         started        81 libgdi.so.0.8.1 libgdi.so.0.8.1 69->81         started       
Threat name:
Linux.Trojan.Kaiji
Status:
Malicious
First seen:
2026-04-11 18:24:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:kaiji defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
Command and Scripting Interpreter: Unix Shell
Enumerates kernel/hardware configuration
Reads runtime system information
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates running processes
Modifies init.d
Write file to user bin folder
Executes dropped EXE
Modifies Watchdog functionality
Creates a large amount of network flows
Kaiji
Kaiji family
Malware Config
C2 Extraction:
s5.quicklyspeed.com:8080
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_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectGoMethodSignatures
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:F01_s1ckrule
Author:s1ckb017
Rule name:GoBinTest
Rule name:golang
Rule name:golang_binary_string
Description:Golang strings present
Rule name:Golang_Find_CSC846
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:identity_golang
Author:Eric Yocam
Description:find Golang malware
Rule name:Linux_Generic_Threat_6bed4416
Author:Elastic Security
Rule name:Linux_Generic_Threat_a40aaa96
Author:Elastic Security
Rule name:Linux_Generic_Threat_fc5b5b86
Author:Elastic Security
Rule name:ProgramLanguage_Golang
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:Suspicious_Golang_Binary
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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

Kaiji

elf 47b6ecba4e77e4fce84fe768b11d8bde2936938c2ae07a35aa9aa8f7fe6fe192

(this sample)

  
Delivery method
Distributed via web download

Comments