MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c
SHA3-384 hash: 38e5f8a984c41ecb977fa60dfc6339d7fabdebfa0c954118d0d4c91ec488f99eb626464494eb4f809506b3170611a2ec
SHA1 hash: 168ae5f9ee4e64c697971d99400a16ac96ccaf55
MD5 hash: 5f3d8ad6c53bfa4768f8d5230bb9ab6a
humanhash: music-iowa-nebraska-neptune
File name:linux_mipsel_softfloat
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'898'240 bytes
First seen:2025-07-11 06:40:35 UTC
Last seen:2025-10-29 15:13:53 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:+RxVVRFMTwtupkYzfgh7rxQ2USaU85Jbq1rQcR6VYv0VF1:
TLSH T1D056E604BDC46BB6C82C8B7584E6CA9223B06D144AF15A271664FED9BC762787F47CCC
gimphash d32a616709154d99f5f34672a5e693bcff5dc106b2584b8d6f593ff16d689453
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
File size (compressed) :1'478'536 bytes
File size (de-compressed) :5'898'240 bytes
Format:linux/mipsel
Packed file: 4272a226592bdfc55e3e5759932d98744613dd1eced8f9137af9f453154ea999

Intelligence

File Origin
# of uploads :
2
# of downloads :
13
Origin country :
DE DE
Vendor Threat Intelligence
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.Kaiji-10025522-0
Create hunting rule

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

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

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6870b25d900df8e7f869b8c1linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Locks files
Changes the time when the file was created, accessed, or modified
Receives data from a server
Creating a file
Manages services
Sets a written file as executable
Connection attempt
Sets a file as executable
Launching a process
Kills processes
Sends data to a server
Creating a process from a recently created file
Writes files to system subdirectory
Creates or modifies files in /init.d to set up autorun
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
golang obfuscated
Link:
https://www.filescan.io/uploads/6870b2250abaf8edd6ee9a51/reports/41b2d8c4-2fe8-4d0b-baa3-581bc53e72e5/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/61b0cfa1-e658-4142-b645-67813db91a96
Behavior Graph:
Download SVG
%3 guuid=de1ee7aa-1900-0000-1764-36118e070000 pid=1934 /usr/bin/sudo guuid=755095ac-1900-0000-1764-361193070000 pid=1939 /tmp/sample.bin guuid=de1ee7aa-1900-0000-1764-36118e070000 pid=1934->guuid=755095ac-1900-0000-1764-361193070000 pid=1939 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/21a74a12-876a-4b33-91f9-a90170c046e6
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1733416
Signature
Multi AV Scanner detection for submitted file
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1733416 Sample: linux_mipsel_softfloat.elf Startdate: 11/07/2025 Architecture: LINUX Score: 56 12 54.171.230.55, 37900, 443 AMAZON-02US United States 2->12 14 Multi AV Scanner detection for submitted file 2->14 16 Yara detected Chaos 2->16 6 dash rm 2->6         started        8 dash rm 2->8         started        10 linux_mipsel_softfloat.elf 2->10         started        signatures3 process4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2025-07-11 06:42:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=le4jgce3rto2mjqozxqwuro7sj2k4v57vulh2y35gshj676hmqoa._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji defense_evasion discovery persistence
Link:
https://tria.ge/reports/250711-hf58xafn5t/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Modifies init.d
Executes dropped EXE
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan kaiji chaos Unix.Malware.Kaiji-10002376-0
YARA:
ELF_Kaiji_Chaos_April_2024
Link:
https://app.threat.zone/submission/d0339177-c807-40cd-9531-ddb4c34b2ccf
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/593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
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: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: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 593893089b8cdda6260ecde16a45df9274ae57bfad167d637d348e9f7fc7641c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581022/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3581026/

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