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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7eb80f11ec4ecbc997eca99fc5965bb14042cf03bcbae9140c4c6a5296202b16. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7eb80f11ec4ecbc997eca99fc5965bb14042cf03bcbae9140c4c6a5296202b16
SHA3-384 hash: c2cb11402d1803ed130ceaaaeaa922593b21ad8f74156e5d2e74c72975b5913d336fa38bf004bb9013f2a73c057e6b21
SHA1 hash: f775844c33959f4c136e7e7943b9913b1b794aca
MD5 hash: 85170960f5d7013b5485b43374e737f1
humanhash: leopard-white-double-whiskey
File name:linux_aarch64
Download: download sample
Signature Kaiji
Create hunting rule
File size:2'031'616 bytes
First seen:2025-04-16 18:38:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 24576:IDNKXEt7J3sOaICwkgmGTFNTo8UlTprOEn6Lvz1v:ICEBJ3sPCo8vz1
TLSH T1F0955B84BC9DB812E9D97EB46F2502D4B225FC499F81C7277A10B7AE6DF23548F21360
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 :
1
# of downloads :
81
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Malware.Kaiji-10000905-0
Create hunting rule

Unix.Malware.Kaiji-10002375-0
Create hunting rule

Unix.Malware.Kaiji-10003730-0
Create hunting rule

Unix.Malware.Kaiji-10014302-0
Create hunting rule

Unix.Malware.Kaiji-10017581-0
Create hunting rule

Unix.Malware.Kaiji-10028720-0
Create hunting rule

Unix.Malware.Kaiji-9992785-0
Create hunting rule

Unix.Malware.Kaiji-9993888-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67fff976f3fd91e7d60bd80alinux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Changes the time when the file was created, accessed, or modified
Launching a process
Manages services
Creating a file
Sets a written file as executable
Writes files to system directory
Writes files to system subdirectory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto golang
Link:
https://www.filescan.io/uploads/67fff94f90767142c3d7b071/reports/488a7de8-44cb-4f15-b8c4-258f76d1ca72/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/39ec5dcf-96cb-4369-bf8b-5aa2874d5adf
Result
Threat name:
Kaiji
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1666675
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
Yara detected Kaiji
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1666675 Sample: linux_aarch64.elf Startdate: 16/04/2025 Architecture: LINUX Score: 72 86 154.40.47.248, 53206, 888 COGENT-174US United States 2->86 88 www.google.com 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 Yara detected Kaiji 2->92 10 linux_aarch64.elf 2->10         started        12 systemd cron 2->12         started        14 systemd cron 2->14         started        16 5 other processes 2->16 signatures3 process4 process5 18 linux_aarch64.elf linux_aarch64.elf 10->18         started        22 cron 12->22         started        24 cron 14->24         started        file6 76 /etc/profile.d/gateway.sh, Bourne-Again 18->76 dropped 78 /etc/profile.d/bash_cfg.sh, Bourne-Again 18->78 dropped 80 /etc/init.d/x11-common, POSIX 18->80 dropped 82 44 other files (43 malicious) 18->82 dropped 94 Sample tries to set files in /etc globally writable 18->94 96 Sample tries to persist itself using /etc/profile 18->96 98 Drops files in suspicious directories 18->98 26 linux_aarch64.elf bash 18->26         started        30 linux_aarch64.elf service systemctl 18->30         started        32 linux_aarch64.elf service systemctl 18->32         started        38 6 other processes 18->38 34 cron sh 22->34         started        36 cron sh 24->36         started        signatures7 process8 file9 84 /etc/crontab, ASCII 26->84 dropped 100 Sample tries to persist itself using cron 26->100 40 service 30->40         started        42 service basename 30->42         started        52 2 other processes 30->52 44 service 32->44         started        54 3 other processes 32->54 46 sh .mod 34->46         started        48 sh .mod 36->48         started        50 bash 32676 38->50         started        56 7 other processes 38->56 signatures10 process11 process12 58 service systemctl 40->58         started        60 service sed 40->60         started        62 service systemctl 44->62         started        64 service sed 44->64         started        66 .mod 46->66         started        68 .mod 48->68         started        70 32676 sleep 50->70         started        72 32676 sleep 50->72         started        74 3 other processes 50->74
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7eb80f11ec4ecbc997eca99fc5965bb14042cf03bcbae9140c4c6a5296202b16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7eb80f11ec4ecbc997eca99fc5965bb14042cf03bcbae9140c4c6a5296202b16/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2025-04-16 18:39:16 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p24a6epmj3f4tf7mvgp4lfs3wfaeftydxs5osfamjrvfffrafmla._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji linux
Link:
https://tria.ge/reports/250416-xanh8stzav/
Verdict:
Malicious
Tags:
Unix.Malware.Kaiji-9992785-0
YARA:
n/a
Link:
https://app.threat.zone/submission/375a8d0b-a779-4ab5-b3c9-13f056821ca5
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:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
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: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: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: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 7eb80f11ec4ecbc997eca99fc5965bb14042cf03bcbae9140c4c6a5296202b16

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3513597/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments