MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d. 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: 9


Intelligence 9 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d
SHA3-384 hash: f948619066cb9aa29a1a1e542a447db4143e1303d16c31118640de4ec58b67c37d795a99edca0261229a4befea17d658
SHA1 hash: 308bff4526ae67f498d556c20fe5f387429b9af2
MD5 hash: b2a84ac5477e244b2b66d6268542875a
humanhash: mountain-uncle-bravo-utah
File name:linux_ppc64
Download: download sample
Signature Kaiji
Create hunting rule
File size:5'111'808 bytes
First seen:2025-07-11 06:40:25 UTC
Last seen:2025-10-29 15:13:46 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:UbfIMWeDTyKn8Nrwtt56e3JLxKYzYR2iLHwOng/KosjiwoNK5bfkf325NV:MgMWeDTyK86t53txKSi21S7vkf327
TLSH T189365C80BB0CD139EA5B0A724C738F2063617E46C1E4866B771AF76F05B16E65A0FED4
gimphash 211db7a0239e5fc99a6586de3a048800db896d42ff8d6ab26954b5ef47fc9ac0
Magika elf
Reporter abuse_ch
Tags:elf kaiji
File size (compressed) :1'396'308 bytes
File size (de-compressed) :5'111'808 bytes
Format:linux/ppc64
Packed file: c12baff9f2db4b41e0f714cb9e031e26f8a00df722a0d99e199c1480dc23a293

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:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6870b249c9eb9747376845c5linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
golang obfuscated
Link:
https://www.filescan.io/uploads/6870b21f30bf7333233710fa/reports/c83b81f2-44ae-4f46-af4a-42d8fca180be/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ded65d57-6f0c-4d4e-912e-9d9f85e906be
Behavior Graph:
Download SVG
%3 guuid=95e86ba0-1a00-0000-d879-eafdad0a0000 pid=2733 /usr/bin/sudo guuid=f4318ba2-1a00-0000-d879-eafdb20a0000 pid=2738 /tmp/sample.bin guuid=95e86ba0-1a00-0000-d879-eafdad0a0000 pid=2733->guuid=f4318ba2-1a00-0000-d879-eafdb20a0000 pid=2738 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/997b5b7c-816f-4e15-a870-7bfd2fb454c9
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1733421
Signature
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample tries to persist itself using /etc/profile
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: 1733421 Sample: linux_ppc64.elf Startdate: 11/07/2025 Architecture: LINUX Score: 76 114 154.201.82.47, 37986, 37990, 60504 PEGTECHINCUS Seychelles 2->114 116 www.google.com 2->116 118 Multi AV Scanner detection for submitted file 2->118 120 Yara detected Chaos 2->120 122 Uses known network protocols on non-standard ports 2->122 12 linux_ppc64.elf 2->12         started        16 systemd System.img.config 2->16         started        18 sshd sshd 2->18         started        20 8 other processes 2->20 signatures3 process4 file5 110 /etc/id.services.conf, ELF 12->110 dropped 112 /etc/32678, POSIX 12->112 dropped 132 Sample tries to set files in /etc globally writable 12->132 134 Writes identical ELF files to multiple locations 12->134 22 linux_ppc64.elf linux_ppc64.elf 12->22         started        26 linux_ppc64.elf bash 12->26         started        28 linux_ppc64.elf service systemctl 12->28         started        30 System.img.config service 16->30         started        32 System.img.config sh 16->32         started        34 System.img.config pkill 16->34         started        36 System.img.config System.img.config 16->36         started        38 sshd 18->38         started        40 3 other processes 20->40 signatures6 process7 file8 102 /etc/profile.d/bash_config.sh, a 22->102 dropped 104 /etc/profile.d/bash_config, ELF 22->104 dropped 106 /etc/init.d/linux_kill, POSIX 22->106 dropped 108 /boot/System.img.config, ELF 22->108 dropped 124 Sample tries to set files in /etc globally writable 22->124 126 Writes identical ELF files to multiple locations 22->126 128 Sample tries to persist itself using /etc/profile 22->128 130 Drops files in suspicious directories 22->130 42 linux_ppc64.elf bash 22->42         started        44 linux_ppc64.elf update-rc.d 22->44         started        46 linux_ppc64.elf bash 22->46         started        48 bash 32678 26->48         started        50 service 28->50         started        56 3 other processes 28->56 52 service 30->52         started        58 3 other processes 30->58 54 sh 32678 32->54         started        signatures9 process10 process11 72 4 other processes 42->72 60 update-rc.d systemctl 44->60         started        74 3 other processes 46->74 62 32678 id.services.conf 48->62         started        64 32678 sleep 48->64         started        66 service systemctl 50->66         started        68 service sed 50->68         started        76 2 other processes 52->76 70 32678 sleep 54->70         started        process12 78 id.services.conf service 62->78         started        80 id.services.conf bash 62->80         started        82 id.services.conf pkill 62->82         started        84 id.services.conf id.services.conf 62->84         started        process13 86 service 78->86         started        88 service basename 78->88         started        90 service basename 78->90         started        92 service systemctl 78->92         started        94 bash 32678 80->94         started        process14 96 service systemctl 86->96         started        98 service sed 86->98         started        100 32678 sleep 94->100         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-07-11 06:41:32 UTC
File Type:
ELF64 Big (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m56dog426g5hf4cwlsjrsyfekfn2sfo5kg2tp43qwct3qotkhnoq._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji linux
Link:
https://tria.ge/reports/250711-hfxlrstpw3/
Verdict:
Malicious
Tags:
trojan kaiji chaos Unix.Malware.Kaiji-10002376-0
YARA:
ELF_Kaiji_Chaos_April_2024
Link:
https://app.threat.zone/submission/d49f48ed-f3e4-4926-a7ca-9a35b7d5603a
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/677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d

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 677c371b9af1ba72f0565c931960a4515ba915dd51b537f370b0a7b83a6a3b5d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581013/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3581032/

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