MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c. 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: 10


Intelligence 10 IOCs YARA 24 File information Comments
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SHA256 hash: f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c
SHA3-384 hash: d167d55927d3e84c25a3a13376416d23abbbfacdc77c07cbddf4de07b636923da61ec1bbe6b1e110e13976c973d4253b
SHA1 hash: be7434569fa5930355b42587922c649a15482999
MD5 hash: 2aa634e66009959a44ad4350f816051b
humanhash: berlin-delta-yellow-lithium
File name:linux_386
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'251'072 bytes
First seen:2026-02-25 20:32:08 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:E33d0lGt6UHcFL7Rn2o03wiEhiDmzzd/9sARlBs/00Cpfx9a9uNHp9hW16klbU6V:E33GlbU8FwmzzRDZ9mYqRV
TLSH T148364A10FECB54F6D5031D3044ABE2AF67316D064B25EB83EA047F6AF97B6A51D32209
telfhash t1b9c2ce73199da8fc67f0851387ab7120cfe6e03726d0297159f6b8c0e673d53a626878
gimphash d32a616709154d99f5f34672a5e693bcff5dc106b2584b8d6f593ff16d689453
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 :
1
# of downloads :
64
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30444.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Kaiji-9975495-0
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Unix.Malware.Kaiji-10002376-0
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Unix.Malware.Kaiji-10003612-0
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Unix.Malware.Kaiji-10003670-0
Create hunting rule

Unix.Malware.Kaiji-10025522-0
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Unix.Malware.Kaiji-10028086-0
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Unix.Malware.Kaiji-10028719-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Launching a process
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Receives data from a server
Creating a file
Locks files
DNS request
Connection attempt
Mounts file systems
Manages services
Creating a process from a recently created file
Creates directories in a system directory
Writes files to system subdirectory
Writes files to system directory
Replaces system binary files
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
base64 crypto golang
Link:
https://www.filescan.io/uploads/699f5c6397feb4afd65aeea4/reports/3dbe3ffb-e0ed-4696-bd1a-a3278ead1b35/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Trojan.Linux.Chaos.mj
Link:
https://opentip.kaspersky.com/f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c/results?tab=lookup
Malware family:
Kaiji
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6eb97ba3-e023-499e-8d54-a078145c4f1f
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1875002
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
Uses known network protocols on non-standard ports
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1875002 Sample: linux_386.elf Startdate: 25/02/2026 Architecture: LINUX Score: 76 120 118.107.41.238, 34718, 47758, 47762 BCPL-SGBGPNETGlobalASNSG Singapore 2->120 122 www.google.com 2->122 124 Multi AV Scanner detection for submitted file 2->124 126 Yara detected Chaos 2->126 128 Uses known network protocols on non-standard ports 2->128 12 linux_386.elf 2->12         started        16 systemd System.img.config 2->16         started        18 systemd cron 2->18         started        20 11 other processes 2->20 signatures3 process4 file5 118 /etc/32678, POSIX 12->118 dropped 138 Sample tries to set files in /etc globally writable 12->138 22 linux_386.elf linux_386.elf 12->22         started        26 linux_386.elf service systemctl 12->26         started        28 linux_386.elf bash 12->28         started        30 System.img.config sh 16->30         started        32 System.img.config service systemctl 16->32         started        34 System.img.config pkill 16->34         started        36 System.img.config System.img.config 16->36         started        38 cron 18->38         started        40 4 other processes 20->40 signatures6 process7 file8 108 /etc/profile.d/bash_config.sh, a 22->108 dropped 110 /etc/init.d/ssh, POSIX 22->110 dropped 112 /etc/init.d/linux_kill, POSIX 22->112 dropped 114 /.img, a 22->114 dropped 130 Sample tries to set files in /etc globally writable 22->130 132 Sample tries to persist itself using /etc/profile 22->132 134 Drops files in suspicious directories 22->134 42 linux_386.elf bash 22->42         started        46 linux_386.elf service systemctl 22->46         started        48 linux_386.elf bash 22->48         started        56 5 other processes 22->56 58 4 other processes 26->58 50 bash 32678 28->50         started        52 sh 32678 30->52         started        60 4 other processes 32->60 54 cron sh 38->54         started        signatures9 process10 file11 116 /etc/crontab, ASCII 42->116 dropped 136 Sample tries to persist itself using cron 42->136 70 4 other processes 46->70 72 4 other processes 48->72 62 32678 sleep 50->62         started        64 32678 id.services.conf 52->64         started        66 32678 sleep 52->66         started        68 sh 54->68         started        74 4 other processes 56->74 76 2 other processes 58->76 78 2 other processes 60->78 signatures12 process13 process14 80 id.services.conf service systemctl 64->80         started        82 id.services.conf sh 64->82         started        84 id.services.conf pkill 64->84         started        86 id.services.conf id.services.conf 64->86         started        88 service systemctl 70->88         started        90 service sed 70->90         started        process15 92 service 80->92         started        94 service basename 80->94         started        96 service basename 80->96         started        98 service systemctl 80->98         started        100 sh 32678 82->100         started        process16 102 service systemctl 92->102         started        104 service sed 92->104         started        106 32678 sleep 100->106         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c/
Verdict:
Malicious
Threat:
Family.KAIJI
Link:
https://tip.neiki.dev/file/f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-02-25 20:33:35 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6n46ohpt6xa2hgx6omvorluz2ddpt7ymib7iza46duhe6jkpl6ga._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260225-zbh19aex2h/
Behaviour
GoLang User-Agent
Enumerates kernel/hardware configuration
Reads runtime system information
Changes its process name
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
Kaiji
Kaiji family
kaiji_chaosbot
Malware Config
C2 Extraction:
118.107.41.238:808
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c

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: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:F01_s1ckrule
Create hunting rule
Author:s1ckb017
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_Generic_Threat_a40aaa96
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Kaiji_91091be3
Create hunting rule
Author:Elastic Security
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
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:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
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

Kaiji

elf f379e71df3f5c1a39afe732ae8ae99d0c6f9ff0c407e8c839e1d0e4f254f5f8c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3785686/
  
Delivery method
Distributed via web download

Comments