MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132. 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


Threat unknown


Vendor detections: 6


Intelligence 6 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132
SHA3-384 hash: f3b4c547b2a2494b196fdb60b8bce102b2fc94248da2aecc693546e87f3b78e4ec61bf283f1b38564191bf9d7355c422
SHA1 hash: c63872fd62d50dcfceeda3ce6145361839034fd6
MD5 hash: a9ff4281ba7a326e32cfef7f49585709
humanhash: nebraska-fruit-seven-robin
File name:cat.sh
Download: download sample
File size:3'300 bytes
First seen:2026-03-31 11:16:17 UTC
Last seen:Never
File type: sh
MIME type:text/x-shellscript
ssdeep 48:RSaGR9B6FuEAgNR9jYziWkK9TL9kDXbhUzVt3sXcwOWsQGUZVG2Z3q99VJ38j299:RZG6XKT0eYhY8oW3q9SC1pHKX/2mvA
TLSH T15061AFF831D0A93A15EBCF0E73F54989906E45E638E13F7CC9980D211917CA4FA8DA4E
TrID 70.0% (.SH) Linux/UNIX shell script (7000/1)
30.0% (.) Unix-like shebang (var.3) (gen) (3000/1)
Magika shell
Reporter BlinkzSec
URLMalware sample (SHA256 hash)SignatureTags
http://121.37.40.52/main_aarch64n/an/aelf ua-wget
http://121.37.40.52/main_armn/an/aelf ua-wget
http://121.37.40.52/main_arm5n/an/aelf ua-wget
http://121.37.40.52/main_arm6n/an/aelf ua-wget
http://121.37.40.52/main_arm7n/an/aelf ua-wget
http://121.37.40.52/main_i486n/an/aelf ua-wget
http://121.37.40.52/main_i686n/an/aelf ua-wget
http://121.37.40.52/main_m68kn/an/aelf ua-wget
http://121.37.40.52/main_mipsn/an/aelf ua-wget
http://121.37.40.52/main_mips64n/an/aelf ua-wget
http://121.37.40.52/main_mpsln/an/aelf ua-wget
http://121.37.40.52/main_ppcn/an/aelf ua-wget
http://121.37.40.52/main_sh4n/an/aelf ua-wget
http://121.37.40.52/main_x86n/an/aelf ua-wget

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
Origin country :
GB GB
Vendor Threat Intelligence
Gathering data
Verdict:
Malicious
File Type:
unix shell
First seen:
2026-03-31T08:21:00Z UTC
Last seen:
2026-03-31T11:49:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan-Downloader.Shell.Agent.p HEUR:Trojan-Downloader.Shell.Agent.gen HEUR:Trojan-Downloader.Shell.Agent.a
Link:
https://opentip.kaspersky.com/b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/40eee4c8-7a66-4998-9eef-3791c0c8f156
Behavior Graph:
Download SVG
%3 guuid=d329f4bf-1600-0000-f764-2e4c650f0000 pid=3941 /usr/bin/sudo guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950 /tmp/sample.bin guuid=d329f4bf-1600-0000-f764-2e4c650f0000 pid=3941->guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950 execve guuid=278f36c3-1600-0000-f764-2e4c710f0000 pid=3953 /usr/bin/rm delete-file guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=278f36c3-1600-0000-f764-2e4c710f0000 pid=3953 execve guuid=46e956c7-1600-0000-f764-2e4c850f0000 pid=3973 /usr/bin/rm guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=46e956c7-1600-0000-f764-2e4c850f0000 pid=3973 execve guuid=67bfb2c7-1600-0000-f764-2e4c860f0000 pid=3974 /usr/bin/rm guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=67bfb2c7-1600-0000-f764-2e4c860f0000 pid=3974 execve guuid=7ca312c8-1600-0000-f764-2e4c880f0000 pid=3976 /usr/bin/rm guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=7ca312c8-1600-0000-f764-2e4c880f0000 pid=3976 execve guuid=d71d5bc8-1600-0000-f764-2e4c8a0f0000 pid=3978 /usr/bin/wget net send-data guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=d71d5bc8-1600-0000-f764-2e4c8a0f0000 pid=3978 execve guuid=adac25e3-1600-0000-f764-2e4cf40f0000 pid=4084 /usr/bin/curl net send-data write-file guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=adac25e3-1600-0000-f764-2e4cf40f0000 pid=4084 execve guuid=080cfc3a-1700-0000-f764-2e4cc2100000 pid=4290 /usr/bin/busybox guuid=a8be7cc2-1600-0000-f764-2e4c6e0f0000 pid=3950->guuid=080cfc3a-1700-0000-f764-2e4cc2100000 pid=4290 execve 177385d8-ccce-567d-ab6e-989ff2e82ab3 121.37.40.52:80 guuid=d71d5bc8-1600-0000-f764-2e4c8a0f0000 pid=3978->177385d8-ccce-567d-ab6e-989ff2e82ab3 send: 139B guuid=adac25e3-1600-0000-f764-2e4cf40f0000 pid=4084->177385d8-ccce-567d-ab6e-989ff2e82ab3 send: 88B
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132
Threat name:
Script-Shell.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-31 11:13:56 UTC
File Type:
Text (Shell)
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w66tdhk72elksukkgfszsiikvqptbwddsgzpvd56lae3vt6syeza._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/260331-ndbjeacv5s/
Behaviour
Reads runtime system information
File and Directory Permissions Modification
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.42
Link:
https://yomi.yoroi.company/submissions/b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132

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:MAL_Linux_IoT_MultiArch_BotnetLoader_Generic
Create hunting rule
Author:Anish Bogati
Description:Technique-based detection of IoT/Linux botnet loader shell scripts downloading binaries from numeric IPs, chmodding, and executing multi-architecture payloads
Reference:MalwareBazaar sample lilin.sh

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

sh b7bd319d5fd116a9514a316599210aac1f30d86391b2fa8fbe5809bacfd2c132

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3809045/
  
Delivery method
Distributed via web download

Comments