MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043. 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
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SHA256 hash: a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043
SHA3-384 hash: 20ef4c953da1f492cf2c8698c2a5520f3e214dc70a48732aa528ce510b6a2343c7ab5202bb51ede748ca63d0b3f1d75d
SHA1 hash: 6cdf5854e951a7c5db638ae1e59c8cc00deffadc
MD5 hash: 6cf28a795cb02b34365ad1e6540d38e2
humanhash: alabama-magazine-march-mockingbird
File name:linux_mipsel
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'898'240 bytes
First seen:2025-10-15 08:19:29 UTC
Last seen:2025-10-15 10:36:40 UTC
File type: elf
MIME type:application/x-executable
ssdeep 98304:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iW5ay5mIOX+aaNcc8pNkxXkz8xBs3K4HUs:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iD
TLSH T10C56E704ADC56BA6C06C9B7584EBCE9523B06D044AF12B271664FEDAB8762747F07CCC
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
78
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30444.LC.UNOFFICIAL
Create hunting rule

Unix.Malware.Kaiji-10002376-0
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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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Creating a file
Manages services
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Receives data from a server
Kills processes
Launching a process
Connection attempt
Sets a file as executable
Locks files
Creating a process from a recently created file
DNS request
Writes files to system subdirectory
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
crypto expand golang lolbin
Link:
https://www.filescan.io/uploads/68ef5947fe81c560ba5939b2/reports/7acdb5bd-13d7-4a27-8fc1-a3ef3d7c4dfe/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/a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-15T06:14:00Z UTC
Last seen:
2025-10-15T06:59:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6f03f6e3-de34-4155-afbd-b2f5fad9335d
Behavior Graph:
Download SVG
%3 guuid=805062a8-1900-0000-eb08-f968ea130000 pid=5098 /usr/bin/sudo guuid=91eee5a9-1900-0000-eb08-f968f0130000 pid=5104 /tmp/sample.bin guuid=805062a8-1900-0000-eb08-f968ea130000 pid=5098->guuid=91eee5a9-1900-0000-eb08-f968f0130000 pid=5104 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7011ab1a-b14e-4e57-a0c9-0f13c30f5dd8
Result
Threat name:
Chaos
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Detection:
malicious
Classification:
troj
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1795550
Signature
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1795550 Sample: linux_mipsel.elf Startdate: 15/10/2025 Architecture: LINUX Score: 48 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->14 16 3 other IPs or domains 2->16 18 Yara detected Chaos 2->18 6 dash rm 2->6         started        8 dash rm 2->8         started        10 linux_mipsel.elf 2->10         started        signatures3 process4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2025-10-15 08:20:47 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ue3mjek672bocotndq2epvd55zdlymmrd3mxk2zdaudqszlo6bbq._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji defense_evasion discovery persistence privilege_escalation
Link:
https://tria.ge/reports/251015-j8vhjs1mv8/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Modifies init.d
Modifies systemd
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/abf134cd-f313-4efe-8894-75046b4ec5f4
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/a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043

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: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 a136c4915efe82e13a6d1c3447d47dee46bc31911ed9756b23050709656ef043

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581007/
  
Delivery method
Distributed via web download

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