MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad. 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 19 File information Comments
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SHA256 hash: a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad
SHA3-384 hash: 529216650ee99f1ad7f331aa02ab2638f8b98bf2c41d48faefb6d9cbf3ba5fe72ca5ce730332a0997a4dfffa22eb35ba
SHA1 hash: bc567315ee41ba70474daeb0b6c049b96a130e1c
MD5 hash: 5c4467b6bc651fadb1e8858837fd466d
humanhash: kilo-coffee-fruit-east
File name:linux_ppc64el
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'242'880 bytes
First seen:2025-09-28 13:49:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:fko0w+Nn07shM3xzvgLbMF9yseKAFFhP45mon+WkSWWoB1:co0w+N07shM3xzvgLbMSseKqQ55k
TLSH T1A4363B42B6086F99C914593385B38EA217B27D557B219743EB04FABFACB23460F15FC8
gimphash 20f5ae018ebbf58a2d3041b2c5c0c3b903aa45927fd73f25989399a3bb4035cd
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 :
71
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30444.LC.UNOFFICIAL
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Unix.Trojan.Kaiji-9975494-0
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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-10028719-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes the time when the file was created, accessed, or modified
Sends data to a server
Receives data from a server
Connection attempt
DNS request
Creating a file
Sets a written file as executable
Creates directories in a system directory
Launching a process
Locks files
Mounts file systems
Manages services
Creating a process from a recently created file
Replaces system binary files
Writes files to system subdirectory
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files 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/68d93d5674e5a2898996cffc/reports/ff2a40f7-c104-4e23-8dea-b5c74833e877/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-09-28T11:53:00Z UTC
Last seen:
2025-09-28T11:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c621b386-e18d-471f-b70d-a2107babfcba
Behavior Graph:
Download SVG
%3 guuid=580992fd-1900-0000-1d50-e148b50a0000 pid=2741 /usr/bin/sudo guuid=2a8bf5ff-1900-0000-1d50-e148bc0a0000 pid=2748 /tmp/sample.bin guuid=580992fd-1900-0000-1d50-e148b50a0000 pid=2741->guuid=2a8bf5ff-1900-0000-1d50-e148bc0a0000 pid=2748 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/62939c15-bda3-471b-b8ad-473f19ec8de5
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1785511
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
Uses known network protocols on non-standard ports
Writes identical ELF files to multiple locations
Yara detected Chaos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1785511 Sample: linux_ppc64el.elf Startdate: 28/09/2025 Architecture: LINUX Score: 80 98 202.61.139.18, 40750, 42564, 808 TH-AS-APTianhaiInfoTechCN Australia 2->98 100 www.google.com 2->100 102 Multi AV Scanner detection for submitted file 2->102 104 Yara detected Chaos 2->104 106 Uses known network protocols on non-standard ports 2->106 10 linux_ppc64el.elf 2->10         started        14 systemd System.img.config 2->14         started        16 systemd cron 2->16         started        18 14 other processes 2->18 signatures3 process4 file5 94 /etc/id.services.conf, ELF 10->94 dropped 96 /etc/32678, POSIX 10->96 dropped 118 Sample tries to set files in /etc globally writable 10->118 120 Writes identical ELF files to multiple locations 10->120 20 linux_ppc64el.elf linux_ppc64el.elf 10->20         started        24 linux_ppc64el.elf service systemctl 10->24         started        26 linux_ppc64el.elf bash 10->26         started        28 System.img.config service systemctl 14->28         started        30 System.img.config sh 14->30         started        32 System.img.config pkill 14->32         started        34 System.img.config System.img.config 14->34         started        36 cron 16->36         started        38 6 other processes 18->38 signatures6 process7 file8 84 /usr/lib/system-monitor, ELF 20->84 dropped 86 /usr/lib/libdlrpcld.so, ELF 20->86 dropped 88 /usr/bin/ss, ELF 20->88 dropped 90 12 other files (11 malicious) 20->90 dropped 108 Sample tries to set files in /etc globally writable 20->108 110 Writes identical ELF files to multiple locations 20->110 112 Sample tries to persist itself using /etc/profile 20->112 114 Drops files in suspicious directories 20->114 40 linux_ppc64el.elf bash 20->40         started        44 linux_ppc64el.elf service systemctl 20->44         started        46 linux_ppc64el.elf bash 20->46         started        54 5 other processes 20->54 56 4 other processes 24->56 48 bash 32678 26->48         started        58 4 other processes 28->58 50 sh 32678 30->50         started        52 cron sh 36->52         started        signatures9 process10 file11 92 /etc/crontab, ASCII 40->92 dropped 116 Sample tries to persist itself using cron 40->116 60 service 44->60         started        66 3 other processes 44->66 68 4 other processes 46->68 62 32678 sleep 48->62         started        70 2 other processes 50->70 64 sh 52->64         started        72 4 other processes 54->72 74 2 other processes 56->74 76 2 other processes 58->76 signatures12 process13 process14 78 service systemctl 60->78         started        80 service sed 60->80         started        82 id.services.conf pkill 70->82         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2025-09-28 13:56:20 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=ua45qw7fm6mxbuvpqx3gfribr5vvdzd5bj74crwrnvzm2uswskwq._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji linux
Link:
https://tria.ge/reports/250928-q5w1jaxths/
Verdict:
Malicious
Tags:
trojan chaos kaiji Unix.Trojan.Kaiji-9975494-0
YARA:
ELF_Kaiji_Chaos_April_2024
Link:
https://app.threat.zone/submission/ae822c88-efc1-43b8-8d2a-28c5a3d9ae99
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/a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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: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 a039d85be5679970d2af85f662c5018f6b51e47d0a7fc146d16d72cd525692ad

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3633855/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3633967/

Comments