MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd. 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: 7


Intelligence 7 IOCs YARA 20 File information Comments
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SHA256 hash: 31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd
SHA3-384 hash: e8dbd7b80e89d2e9204eeef6fcd2bc1d5e9309c1bce310605c9e1fc01a7fbdc7b7d27067eed1b93d5d917f461bc688b7
SHA1 hash: 04b27c55de7dbe67f3d0e999317c07305bb2ea09
MD5 hash: 5f205da58520396de86631d28f29ea87
humanhash: pip-purple-harry-east
File name:linux_ppc64el
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'111'808 bytes
First seen:2026-02-25 20:32:00 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:i2LzgioAq4P670Og/d6I+eFRgjpmbLQYLy280ntKyB1:nLzgioh4P670Og/d6I+wgjpaLyM
TLSH T174363942B7086FA9CA60493385B38ED117727D996F315343AB14FABEA8B63054F15FC8
gimphash 211db7a0239e5fc99a6586de3a048800db896d42ff8d6ab26954b5ef47fc9ac0
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 :
89
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30444.LC.UNOFFICIAL
Create hunting rule

Unix.Malware.Kaiji-10002376-0
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Unix.Malware.Kaiji-10003612-0
Create hunting rule

Unix.Malware.Kaiji-10025522-0
Create hunting rule

Unix.Malware.Kaiji-10028086-0
Create hunting rule

Unix.Malware.Kaiji-10028719-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Manages services
Receives data from a server
Creating a file
Locks files
Kills processes
Sends data to a server
Creating a process from a recently created file
Launching a process
Writes files to system subdirectory
Writes files to system directory
Performs a bruteforce attack in the network
Creates or modifies files in /init.d to set up autorun
Result
Gathering data
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0573e315-1a2f-4a36-910b-3624b64dda7c
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1875004
Signature
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample tries to set files in /etc globally writable
Uses known network protocols on non-standard ports
Writes identical ELF files to multiple locations
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1875004 Sample: linux_ppc64el.elf Startdate: 25/02/2026 Architecture: LINUX Score: 72 106 109.202.202.202, 80 INIT7CH Switzerland 2->106 108 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->108 110 4 other IPs or domains 2->110 112 Multi AV Scanner detection for submitted file 2->112 114 Yara detected Chaos 2->114 116 Uses known network protocols on non-standard ports 2->116 12 linux_ppc64el.elf 2->12         started        16 systemd System.img.config 2->16         started        18 systemd snapd-env-generator 2->18         started        20 5 other processes 2->20 signatures3 process4 file5 102 /etc/id.services.conf, ELF 12->102 dropped 104 /etc/32678, POSIX 12->104 dropped 122 Sample tries to set files in /etc globally writable 12->122 124 Writes identical ELF files to multiple locations 12->124 22 linux_ppc64el.elf linux_ppc64el.elf 12->22         started        26 linux_ppc64el.elf service systemctl 12->26         started        28 linux_ppc64el.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        signatures6 process7 file8 98 /etc/init.d/linux_kill, POSIX 22->98 dropped 100 /boot/System.img.config, ELF 22->100 dropped 118 Writes identical ELF files to multiple locations 22->118 120 Drops files in suspicious directories 22->120 38 linux_ppc64el.elf bash 22->38         started        40 linux_ppc64el.elf update-rc.d 22->40         started        42 service 26->42         started        44 service basename 26->44         started        52 2 other processes 26->52 46 bash 32678 28->46         started        48 sh 32678 30->48         started        50 service 32->50         started        54 3 other processes 32->54 signatures9 process10 process11 72 4 other processes 38->72 56 update-rc.d systemctl 40->56         started        58 service systemctl 42->58         started        60 service sed 42->60         started        62 32678 sleep 46->62         started        64 32678 id.services.conf 48->64         started        66 32678 sleep 48->66         started        68 service systemctl 50->68         started        70 service sed 50->70         started        process12 74 id.services.conf service systemctl 64->74         started        76 id.services.conf sh 64->76         started        78 id.services.conf pkill 64->78         started        80 id.services.conf id.services.conf 64->80         started        process13 82 service 74->82         started        84 service basename 74->84         started        86 service basename 74->86         started        88 service systemctl 74->88         started        90 sh 32678 76->90         started        process14 92 service systemctl 82->92         started        94 service sed 82->94         started        96 32678 sleep 90->96         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2026-02-25 20:45:40 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghko62vmuyc4bs7bt7qmuttqcupcgls7mhmwhtoqam6wo6crmx6q._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji linux
Link:
https://tria.ge/reports/260225-zbhqgsex2f/
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/31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd

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
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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: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:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 31d4ef6aaca605c0cbe19fe0ca4e70151e232e5f61d963cdd0033d67785165fd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3785684/
  
Delivery method
Distributed via web download

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