MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce
SHA3-384 hash: 02dc2c39bf5f51bb1327cb3adbbb0130bc039039b28fbfabe2d0846d8071599fa1018b88340856ac609446540d936c80
SHA1 hash: 91e4bd307faf4347b1d2d37f35d16f7db8b6c627
MD5 hash: 812493dc8be44f3afed0a6880c028466
humanhash: november-sweet-gee-uncle
File name:bot.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:67'328 bytes
First seen:2025-04-20 14:58:42 UTC
Last seen:2025-04-21 02:57:17 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:ff2waVTJ3BBW/CFaKNE9S3LFtJzt26ZUddYGX:f74JxI/NKNEU3LFtJiX
TLSH T1B76302326753BEE01F0716339D32F1C3E20B7F3AE219B9711667D9579AC42842AE0287
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) :67'328 bytes
File size (de-compressed) :179'805 bytes
Format:linux/arm
Unpacked file: fb27508d9ac97f0ca11a286b64d60cbb16243c824c6f5cfc75576a270fd833eb

Intelligence

File Origin
# of uploads :
3
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.8214.31877.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68050bbe280f5f89a0d269calinux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Runs as daemon
Receives data from a server
Sends data to a server
Deletes a system binary file
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/68050bbe89fec6b88b9fa740/reports/52b19f53-54f6-437f-aec5-5cbaefe51e2a/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
50
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Moobot 94.156.115.12:43957
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ecbd0ab7-8205-4c37-b02a-1ec01b624386
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1669862
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1669862 Sample: bot.arm7.elf Startdate: 20/04/2025 Architecture: LINUX Score: 92 14 ddwall.duckdns.org. [malformed] 2->14 16 Malicious sample detected (through community Yara rule) 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Okiru 2->20 26 2 other signatures 2->26 8 bot.arm7.elf 2->8         started        signatures3 22 Sends malformed DNS queries 14->22 24 Uses dynamic DNS services 14->24 process4 process5 10 bot.arm7.elf 8->10         started        process6 12 bot.arm7.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-04-20 14:59:10 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5o5mjiv2ushfun4omqqsnbn7ds6pbglsj3owed5thydwnylhdha._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet discovery upx
Link:
https://tria.ge/reports/250420-scrlfsyvew/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Mirai
Mirai family
Malware Config
C2 Extraction:
ddwall.duckdns.org
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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 a75dd62515d52472d1bc732109342df8e5e784cb9276eb107d99f03b370b38ce

(this sample)

Mirai

elf fb27508d9ac97f0ca11a286b64d60cbb16243c824c6f5cfc75576a270fd833eb

  
Dropping
SHA256 fb27508d9ac97f0ca11a286b64d60cbb16243c824c6f5cfc75576a270fd833eb
  
Dropping
MD5 073eed477f6387203d0f8159c0f3ae90
  
URLhaus
https://urlhaus.abuse.ch/url/3519778/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3519811/

Comments