MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2. 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 25 File information Comments

SHA256 hash:	5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2
SHA3-384 hash:	b775c64fe560fce345892ca9f5b227250781113ff4aeac3c3874552048baecc7e95a622dcca65285a9f020db8ed5063a
SHA1 hash:	6b87c9328b9d6389b26a6525c9bf7e0c30b23aa0
MD5 hash:	ec31778cd1d8b6427bf2f1d68ae49ddd
humanhash:	oven-lion-mango-foxtrot
File name:	linux_amd64
Download:	download sample
Signature	Kaiji Create hunting rule
File size:	5'435'392 bytes
First seen:	2026-02-01 20:23:17 UTC
Last seen:	2026-02-03 00:44:45 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	49152:7Xa6xzZWhrb/T4vO90dL3BmAFd4A64nsfJPJ6TdXnT9aqeJaz2xNkapDnYRQoj1H:b2ONLBzSxtSTLElHz
TLSH	T1A3463943F89095A8C1EED13086629293BA717C895F3463D32F50FBB92B76BD46E79310
telfhash	t105a231705abc74b1a667c961f3b374b4e63758b563f474b100276c92efe0e481ca682b
gimphash	8489141d42b5763d2533ede66ffeb9a2eae979105cb5dc27154b16bbb78716ff
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 :

# of downloads :

Origin country :

Vendor Threat Intelligence

Gathering data

Detection(s):

Sanesecurity.Malware.30444.LC.UNOFFICIAL

Unix.Trojan.Kaiji-9975495-0

Unix.Malware.Kaiji-10002376-0

Unix.Malware.Kaiji-10003612-0

Unix.Malware.Kaiji-10003670-0

Unix.Malware.Kaiji-10025522-0

Unix.Malware.Kaiji-10028086-0

Unix.Malware.Kaiji-10028719-0

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2026-02-01T18:32:00Z UTC

Last seen:

2026-02-01T19:36:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/6db538ff-566f-49ae-b237-fb5c2dda38d2

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/279270da-ef0f-434b-8676-fa7a86ed1ecf

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2/

Threat name:

Linux.Trojan.Kaiji

Status:

Malicious

First seen:

2026-02-01 20:24:31 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=lj7k55eerwpeavqacbsok5koqy4dhacxfq7q4q4rbbco4wbsuwza._file

Result

Malware family:

kaiji

Score:

10/10

Tags:

family:kaiji defense_evasion discovery execution linux persistence privilege_escalation

Link:

https://tria.ge/reports/260201-y6xmfse15h/

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:

118.107.41.45:808

Malware family:

Kaiji

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/5a7eaef4848d/report/overview.html

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/5a7eaef4848d9e4056001064e5754e86383380572c3f0e43910844ee5832a5b2

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_duffcopy_amd64 Create hunting rule

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_dcf6565e 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)