MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b. 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


Mirai


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b
SHA3-384 hash: 435d08424c11fb31ff343c67c9f9192fbd577a59418f4dcacf2e66ca5b768487f039d2e997f3d66bde289c6c9be60d4c
SHA1 hash: c60142f1ab069c208617919a68b28691060c60a1
MD5 hash: dafc926fc0690b7434b7f98e37a4cecd
humanhash: batman-indigo-cat-east
File name:morte.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:46'388 bytes
First seen:2025-11-11 23:42:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:WtuLXe3CPRIo1HvBqLb9iFouuk0a2JYoUFPFwJJhNpzlEhhks3Uozy:LeyPRI9v9iau3V/QJfpzlEhbzy
TLSH T17523F101E8E6DD16E6267C73A73DCE97F20A063C41E570F16424A60FD99C684B9FDA82
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 mirai UPX
File size (compressed) :46'388 bytes
File size (de-compressed) :112'648 bytes
Format:linux/arm
Unpacked file: b6799bf4e9404c3ea71a7ff6cbca69a3ad887ff22551549d8f62278cbc42ff80

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/6913ca114ce0adbcc984fac0/reports/bbd75b1c-d947-4cf1-b76e-d36d38cd3285/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
48
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-11T20:18:00Z UTC
Last seen:
2025-11-12T00:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b71506a4-3c4f-4e94-8a37-b81b0038cdd6
Behavior Graph:
Download SVG
%3 guuid=7ecaec72-1800-0000-e3f8-dc7e8b070000 pid=1931 /usr/bin/sudo guuid=54379f76-1800-0000-e3f8-dc7e95070000 pid=1941 /tmp/sample.bin guuid=7ecaec72-1800-0000-e3f8-dc7e8b070000 pid=1931->guuid=54379f76-1800-0000-e3f8-dc7e95070000 pid=1941 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d81bdb0a-bc81-42e0-87a1-7c1580cf062b
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1812374
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1812374 Sample: morte.arm.elf Startdate: 12/11/2025 Architecture: LINUX Score: 72 22 . [malformed] 2->22 24 196.251.72.110, 48574, 48578, 48582 Web4AfricaZA Seychelles 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected Mirai 2->32 34 Sample is packed with UPX 2->34 8 morte.arm.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Sends malformed DNS queries 22->36 process4 process5 12 morte.arm.elf 8->12         started        14 morte.arm.elf 8->14         started        16 morte.arm.elf 8->16         started        process6 18 morte.arm.elf 12->18         started        20 morte.arm.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-11-11 23:43:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ww2apaplkhb6yhhsce7hfgghraq6gvl2v5lrmigyfnaqchu6ibfq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251111-3qnf3atlbm/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b68f593f-1391-4410-b226-6282df961eb6
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/b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf b5b40781eb51c3ec1cf2113e7298c78821e3557aaf571620d82b41011e9e404b

(this sample)

Mirai

elf b6799bf4e9404c3ea71a7ff6cbca69a3ad887ff22551549d8f62278cbc42ff80

  
URLhaus
https://urlhaus.abuse.ch/url/3699230/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 b6799bf4e9404c3ea71a7ff6cbca69a3ad887ff22551549d8f62278cbc42ff80
  
Dropping
MD5 d732fa736437fcbd0d2a2de6e15b6602
  
URLhaus
https://urlhaus.abuse.ch/url/3702436/
  
URLhaus
https://urlhaus.abuse.ch/url/3702473/
  
URLhaus
https://urlhaus.abuse.ch/url/3702425/
  
URLhaus
https://urlhaus.abuse.ch/url/3702447/

Comments