🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf. 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: 11


Intelligence 11 IOCs YARA 13 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf
SHA3-384 hash: c51a751356ef516d7ca482312a732d81eec2bfc13064e6b77ad97a59b92b633e3c7e9966347a92e1b9d703799527a15e
SHA1 hash: b8a5de8ce8570856744717b9872afa7546c5a01e
MD5 hash: 790576a357429568ac84093b6f785f3a
humanhash: pasta-network-fanta-two
File name:790576a357429568ac84093b6f785f3a
Download: download sample
Signature Kaiji
Create hunting rule
File size:2'097'152 bytes
First seen:2024-11-02 02:47:32 UTC
Last seen:2024-11-12 10:05:11 UTC
File type: elf
MIME type:application/x-executable
ssdeep 24576:JgCbFbDVZ7bVCj3ozPQPTUkrtQ05OYRWNOrdErF4ff1kRrxnyVhv8uofvsRWA1SH:VCWpuM2T1s
TLSH T18BA50857B8918542C4E42677ACBE81C833635EB99B8663266D04FE3C3EBF2D90E35354
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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 zbetcheckin
Tags:32 arm elf kaiji

Intelligence

File Origin
# of uploads :
2
# of downloads :
183
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
Unix.Malware.Kaiji-9992785-0
Create hunting rule

Unix.Malware.Kaiji-9993888-0
Create hunting rule

Unix.Malware.Kaiji-10000905-0
Create hunting rule

Unix.Malware.Kaiji-10002375-0
Create hunting rule

Unix.Malware.Kaiji-10003730-0
Create hunting rule

Unix.Malware.Kaiji-10003738-0
Create hunting rule

Unix.Malware.Kaiji-10003978-0
Create hunting rule

Unix.Malware.Kaiji-10014302-0
Create hunting rule

Unix.Malware.Kaiji-10017581-0
Create hunting rule

Unix.Malware.Kaiji-10028720-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672592e949e92a05dde25888linux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug golang obfuscated rijndael
Link:
https://www.filescan.io/uploads/672592e26eca303432ddee1c/reports/71d21a3f-d588-4ea6-a504-d8ab0bf8ffd7/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4e1e3339-f428-47ef-85ec-50bc7d110bcb
Result
Threat name:
Kaiji
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1547222
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
Yara detected Kaiji
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1547222 Sample: Xq5coKA8BI.elf Startdate: 02/11/2024 Architecture: LINUX Score: 72 86 www.google.com 2->86 88 ss.us-tv.top 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 Yara detected Kaiji 2->92 10 Xq5coKA8BI.elf 2->10         started        12 systemd cron 2->12         started        14 systemd cron 2->14         started        16 5 other processes 2->16 signatures3 process4 process5 18 Xq5coKA8BI.elf Xq5coKA8BI.elf 10->18         started        22 cron 12->22         started        24 cron 14->24         started        file6 76 /etc/profile.d/gateway.sh, Bourne-Again 18->76 dropped 78 /etc/profile.d/bash_cfg.sh, Bourne-Again 18->78 dropped 80 /etc/init.d/x11-common, POSIX 18->80 dropped 82 44 other files (43 malicious) 18->82 dropped 94 Sample tries to set files in /etc globally writable 18->94 96 Sample tries to persist itself using /etc/profile 18->96 98 Drops files in suspicious directories 18->98 26 Xq5coKA8BI.elf bash 18->26         started        30 Xq5coKA8BI.elf service systemctl 18->30         started        32 Xq5coKA8BI.elf service systemctl 18->32         started        38 6 other processes 18->38 34 cron sh 22->34         started        36 cron sh 24->36         started        signatures7 process8 file9 84 /etc/crontab, ASCII 26->84 dropped 100 Sample tries to persist itself using cron 26->100 40 service 30->40         started        42 service basename 30->42         started        52 2 other processes 30->52 44 service 32->44         started        54 3 other processes 32->54 46 sh .mod 34->46         started        48 sh .mod 36->48         started        50 bash 32676 38->50         started        56 7 other processes 38->56 signatures10 process11 process12 58 service systemctl 40->58         started        60 service sed 40->60         started        62 service systemctl 44->62         started        64 service sed 44->64         started        66 .mod 46->66         started        68 .mod 48->68         started        70 32676 sleep 50->70         started        72 32676 sleep 50->72         started        74 3 other processes 50->74
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf/
Threat name:
Linux.Trojan.Kaiji
Create hunting rule
Status:
Malicious
First seen:
2024-11-02 02:48:05 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=lmof7sqjtffkkluok4wurrswtmclkmongnht4tkod7bmhz344dhq._file
Result
Malware family:
kaiji
Create hunting rule
Score:
  10/10
Tags:
family:kaiji defense_evasion discovery execution persistence privilege_escalatio privilege_escalation ransomware
Link:
https://tria.ge/reports/241102-dcw4lswpcy/
Behaviour
Command and Scripting Interpreter: Unix Shell
Enumerates kernel/hardware configuration
Reads runtime system information
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Disables SELinux
Enumerates running processes
Modifies init.d
Modifies systemd
Write file to user bin folder
Executes dropped EXE
Modifies Watchdog functionality
Renames multiple (1004) files with added filename extension
Malware Config
C2 Extraction:
ss.us-tv.top:1930
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2b9d5535-193d-4a55-8939-0efcf98306f2
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf

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: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: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: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 5b1c5fca09994aa52e8e572d48c6569b04b531cd334f3e4d4e1fc2c3e77ce0cf

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3270617/

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


Avatar
zbet commented on 2024-11-02 02:47:34 UTC

url : hxxp://103.192.179.5/linux_arm6