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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087
SHA3-384 hash: 45c344f962c77938c710f4da62bc5deb6b86e2a46b0c96091289377be1c95943b69e9e68ddc11fcdbb94223404dd226b
SHA1 hash: e40633eb90dbfccd5c2100181fcadc45549f13fa
MD5 hash: ffc9484ccb17da801e5ed04c7179b0e3
humanhash: idaho-six-fruit-lithium
File name:morte.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:83'764 bytes
First seen:2025-10-06 12:06:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:F0/7CIVBeOy4wLeaQGzJm7N13pR961a1ym8XgvyWf:F0/7Cvd4wLOGzJ8z3pHs2/
TLSH T1D9833955FD818A52CAC112B7FA2F028E376757A8D2EE3203DD196F21378791B0E7B541
telfhash t1605100abdba11dec57d44385c5cf151e99f931982f061563cb193b8fd087ac2b42e836
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 ae3d5e0253ea700e461ddf8a10228a4d969e5c561f6951d1603eb99b9be53d85
File size (compressed) :39'580 bytes
File size (de-compressed) :83'764 bytes
Format:linux/arm
Packed file: ae3d5e0253ea700e461ddf8a10228a4d969e5c561f6951d1603eb99b9be53d85

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin masquerade obfuscated remote
Link:
https://www.filescan.io/uploads/68e3b25ef377ab231052b161/reports/949ed691-1597-49a3-a69d-3ee40666ffc3/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/ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-06T10:19:00Z UTC
Last seen:
2025-10-06T11:55:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/db169b0c-9432-475f-bf58-6136a3b37bab
Behavior Graph:
Download SVG
%3 guuid=cf630996-1800-0000-0584-e7ec75060000 pid=1653 /usr/bin/sudo guuid=2a0c0898-1800-0000-0584-e7ec7c060000 pid=1660 /tmp/sample.bin guuid=cf630996-1800-0000-0584-e7ec75060000 pid=1653->guuid=2a0c0898-1800-0000-0584-e7ec7c060000 pid=1660 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ec5dc3b2-3b59-40e2-a4be-7ecd99f712c5
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1789727
Signature
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Sample deletes itself
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1789727 Sample: morte.arm.elf Startdate: 06/10/2025 Architecture: LINUX Score: 80 32 accessdennied.uk 176.65.132.198, 12121 DIOGELO-ASGB Germany 2->32 40 Yara detected Mirai 2->40 42 Yara detected Xmrig cryptocurrency miner 2->42 10 morte.arm.elf 2->10         started        signatures3 process4 signatures5 50 Found strings related to Crypto-Mining 10->50 13 morte.arm.elf 10->13         started        process6 process7 15 morte.arm.elf 13->15         started        file8 30 /etc/init.d/sysd, POSIX 15->30 dropped 34 Sample tries to set files in /etc globally writable 15->34 36 Drops files in suspicious directories 15->36 38 Sample tries to persist itself using System V runlevels 15->38 19 morte.arm.elf sh 15->19         started        21 morte.arm.elf 15->21         started        signatures9 process10 signatures11 24 sh cp 19->24         started        44 Sample deletes itself 21->44 process12 file13 28 /usr/bin/.sh, ELF 24->28 dropped 46 Drops invisible ELF files 24->46 48 Drops files in suspicious directories 24->48 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-06 12:19:31 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=76i37h63ivr5f254dy4wtdjvng4umaeidcrfjsc7624f7rcwecdq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/251006-pdtknatqz2/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0d673c37-159b-4ae9-b16b-15a3e6f016f2
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/ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087

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: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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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

Mirai

elf ae3d5e0253ea700e461ddf8a10228a4d969e5c561f6951d1603eb99b9be53d85

Mirai

elf ff91bf9fdb4563d2ebbc1e39698d3569b946008818a254c85ff6b85fc4562087

(this sample)

  
Dropped by
SHA256 ae3d5e0253ea700e461ddf8a10228a4d969e5c561f6951d1603eb99b9be53d85
  
URLhaus
https://urlhaus.abuse.ch/url/3660228/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 8496f41b54709e24523ebfca56544dff

Comments