MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d647c6969dfe7b9ce29e28a05ccc06d7d49e5a523c7926733ab49c3a2bfac29. 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: 8


Intelligence 8 IOCs YARA 20 File information Comments

SHA256 hash: 7d647c6969dfe7b9ce29e28a05ccc06d7d49e5a523c7926733ab49c3a2bfac29
SHA3-384 hash: d6f99f9047b05d0fdecac9d8394633e0323e7f2ceeb112c5a98c191edd2f8b9255df690fc1a23cef77cdb00fb2ea2a7a
SHA1 hash: f208e683f0de4ccbaa6c02894508fd1f7436e888
MD5 hash: 3b8c8bf6ddbe741ef9441ff2003aa7ed
humanhash: two-venus-ink-mike
File name:linux_arm64
Download: download sample
Signature Kaiji
File size:5'177'344 bytes
First seen:2026-02-01 20:23:15 UTC
Last seen:2026-02-02 08:33:28 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:7H+5dH9Zq/34LCFNoUAFKVCsN5EN2q3OY2NXxB1:r+5dH+/34LCFNoUTVCsDEN
TLSH T172365B65BD5EE462E6C833783B7193D4323EBC489F4192235610FFAE99F67688F12112
gimphash 3d5dfacace350f9742b321796ec1fa27e7bde5b2e04ad23d7c3d5592bdec5ebe
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 :
3
# of downloads :
44
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Gathering data
Verdict:
Malicious
File Type:
elf.64.le
Detections:
HEUR:Trojan.Linux.Chaos.mj
Status:
terminated
Behavior Graph:
%3 guuid=3f5b9518-1b00-0000-d4a4-f9b80c0b0000 pid=2828 /usr/bin/sudo guuid=4f5b831a-1b00-0000-d4a4-f9b8100b0000 pid=2832 /tmp/sample.bin guuid=3f5b9518-1b00-0000-d4a4-f9b80c0b0000 pid=2828->guuid=4f5b831a-1b00-0000-d4a4-f9b8100b0000 pid=2832 execve
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 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
Uses known network protocols on non-standard ports
Writes identical ELF files to multiple locations
Yara detected Chaos
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1861304 Sample: linux_arm64.elf Startdate: 01/02/2026 Architecture: LINUX Score: 80 122 109.202.202.202, 80 INIT7CH Switzerland 2->122 124 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->124 126 4 other IPs or domains 2->126 128 Multi AV Scanner detection for submitted file 2->128 130 Yara detected Chaos 2->130 132 Uses known network protocols on non-standard ports 2->132 12 linux_arm64.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/id.services.conf, ELF 12->118 dropped 120 /etc/32678, POSIX 12->120 dropped 144 Sample tries to set files in /etc globally writable 12->144 146 Writes identical ELF files to multiple locations 12->146 22 linux_arm64.elf linux_arm64.elf 12->22         started        26 linux_arm64.elf service systemctl 12->26         started        28 linux_arm64.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 2 other processes 20->40 signatures6 process7 file8 108 /usr/lib/system-monitor, ELF 22->108 dropped 110 /usr/lib/libdlrpcld.so, ELF 22->110 dropped 112 /usr/bin/ss, ELF 22->112 dropped 114 12 other files (11 malicious) 22->114 dropped 134 Sample tries to set files in /etc globally writable 22->134 136 Writes identical ELF files to multiple locations 22->136 138 Sample tries to persist itself using /etc/profile 22->138 140 Drops files in suspicious directories 22->140 42 linux_arm64.elf bash 22->42         started        46 linux_arm64.elf service systemctl 22->46         started        48 linux_arm64.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 142 Sample tries to persist itself using cron 42->142 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 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       
Threat name:
Linux.Trojan.Kaiji
Status:
Malicious
First seen:
2026-02-01 20:24:32 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:kaiji linux
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
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_a40aaa96
Author:Elastic Security
Rule name:NET
Author:malware-lu
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:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Suspicious_Golang_Binary
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
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 7d647c6969dfe7b9ce29e28a05ccc06d7d49e5a523c7926733ab49c3a2bfac29

(this sample)

Comments