MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2. 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 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2
SHA3-384 hash: e5c19a8102a2d95c240b419f73f8934895985f2dbd74fd3a4aee49f77985381cce28f58923a55484b906a3d2388c637e
SHA1 hash: 4d6b1e6758595b12089d3a357279444e8451bb45
MD5 hash: 46a3ec4c8e0debf6b5fa5d2d04bcaa18
humanhash: july-massachusetts-hawaii-fourteen
File name:linux_mips
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'898'240 bytes
First seen:2026-02-01 20:23:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:H2EpH9kX4nazMqH5Erob6XMv7fn3FuL9idt42uXYfTYetBDa9zrHAMnRHsLFnoeF:WEiAQUMZudhDM
TLSH T15E5627037E18D71EC62922305DB2CAD4672A3C8546DB9613B391F31EB8F11AC696EDF1
telfhash t1d1c08c458b20229c7d812dd29e8cf53374e8f563097a109cfe7a9083893c4b3a20c92c
gimphash d32a616709154d99f5f34672a5e693bcff5dc106b2584b8d6f593ff16d689453
Magika elf
Reporter abuse_ch
Tags:elf kaiji

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Detection(s):
Sanesecurity.Malware.30444.LC.UNOFFICIAL
Create hunting rule

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

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

Unix.Malware.Reverseshell-10003613-0
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

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
crypto golang
Link:
https://www.filescan.io/uploads/697fb67716ebb08a9466432f/reports/f3c7d625-4953-4953-8ed5-a9d0c2678a74/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-02-01T18:32:00Z UTC
Last seen:
2026-02-01T19:40:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ab037345-9422-43d8-9ade-5bb6e27e9833
Behavior Graph:
Download SVG
%3 guuid=8afecf04-1b00-0000-f514-1b12370c0000 pid=3127 /usr/bin/sudo guuid=29508b07-1b00-0000-f514-1b12400c0000 pid=3136 /tmp/sample.bin guuid=8afecf04-1b00-0000-f514-1b12370c0000 pid=3127->guuid=29508b07-1b00-0000-f514-1b12400c0000 pid=3136 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b370f776-76e3-491b-a6be-25183111b2e3
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1861298
Signature
Multi AV Scanner detection for submitted file
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1861298 Sample: linux_mips.elf Startdate: 01/02/2026 Architecture: LINUX Score: 56 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Chaos 2->20 6 sshd sshd 2->6         started        8 sshd sshd 2->8         started        10 sshd sshd 2->10         started        12 linux_mips.elf 2->12         started        process3 process4 14 sshd 6->14         started        16 sshd 8->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-02-01 20:25:43 UTC
File Type:
ELF32 Big (Exe)
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j7zn2hlehz2t7iobqudhsuodrzw2iuuy4aqd5juejp23tcsdyxba._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260201-y6zrtae16e/
Behaviour
GoLang User-Agent
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Creates/modifies Cron job
Executes dropped EXE
Kaiji
Kaiji family
kaiji_chaosbot
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/4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2

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:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
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 4ff2dd1d643e753fa1c185067951c38e6da45298e0203ea6844bf5b98a43c5c2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3767524/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3767545/
  
URLhaus
https://urlhaus.abuse.ch/url/3767553/
  
URLhaus
https://urlhaus.abuse.ch/url/3767569/
  
URLhaus
https://urlhaus.abuse.ch/url/3767587/
  
URLhaus
https://urlhaus.abuse.ch/url/3767608/
  
URLhaus
https://urlhaus.abuse.ch/url/3767611/
  
URLhaus
https://urlhaus.abuse.ch/url/3767614/
  
URLhaus
https://urlhaus.abuse.ch/url/3768013/
  
URLhaus
https://urlhaus.abuse.ch/url/3769934/
  
URLhaus
https://urlhaus.abuse.ch/url/3769362/
  
URLhaus
https://urlhaus.abuse.ch/url/3769217/
  
URLhaus
https://urlhaus.abuse.ch/url/3768989/
  
URLhaus
https://urlhaus.abuse.ch/url/3768237/
  
URLhaus
https://urlhaus.abuse.ch/url/3768759/
  
URLhaus
https://urlhaus.abuse.ch/url/3769928/
  
URLhaus
https://urlhaus.abuse.ch/url/3768184/
  
URLhaus
https://urlhaus.abuse.ch/url/3770144/
  
URLhaus
https://urlhaus.abuse.ch/url/3769804/
  
URLhaus
https://urlhaus.abuse.ch/url/3768407/
  
URLhaus
https://urlhaus.abuse.ch/url/3769758/
  
URLhaus
https://urlhaus.abuse.ch/url/3769806/
  
URLhaus
https://urlhaus.abuse.ch/url/3769836/
  
URLhaus
https://urlhaus.abuse.ch/url/3767769/
  
URLhaus
https://urlhaus.abuse.ch/url/3769476/
  
URLhaus
https://urlhaus.abuse.ch/url/3769916/
  
URLhaus
https://urlhaus.abuse.ch/url/3768010/

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