MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb
SHA3-384 hash: 68ef3af910ea59404d0ec2739d0a3e29f1d611ac61a84e5c4ba6afc883ce398ec857ec073327abe8ad7cabd07a26b2d4
SHA1 hash: a1822fa8237ea168e02b6af7fcf16ec3af05c18d
MD5 hash: ac100d58b348c04aa11f58f28736b63d
humanhash: october-idaho-nitrogen-illinois
File name:most-arm
Download: download sample
Signature Mirai
Create hunting rule
File size:137'792 bytes
First seen:2025-04-01 13:47:20 UTC
Last seen:2025-04-11 02:56:05 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:qD304awQVkKRuhcK9vqh2ZFTAGN7w4VjCXXT/wMm9e5xdhyNrbul+YwywWlqGJAx:qD3HF7cKeiFTzM4wn7wMm9eTGd41ugU
TLSH T1A1D31945F8415F23C6C212BBFB5E428D7B2A17E8D2EE72039D255F20379799B0E3A542
telfhash t1671110958fad1fcd9bc08148b10e006495dd71ba9e2204160aaefe9fc24b992b422423
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

Intelligence

File Origin
# of uploads :
3
# of downloads :
78
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28886.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ebf156cfd0a37f830b7f62linux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin remote
Link:
https://www.filescan.io/uploads/67ebeea2631830704a8d4282/reports/204271b8-1c07-49da-a6cb-ba7a3bb64893/overview
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/84a2a861-87ac-4131-aa21-35dacfc74a91
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1653741
Signature
Antivirus / Scanner detection for submitted sample
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Sends malformed DNS queries
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1653741 Sample: most-arm.elf Startdate: 01/04/2025 Architecture: LINUX Score: 100 24 net-killer.cameraddns.net. [malformed] 2->24 26 most-killer.duckdns.org. [malformed] 2->26 28 7 other IPs or domains 2->28 30 Suricata IDS alerts for network traffic 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 40 3 other signatures 2->40 9 most-arm.elf 2->9         started        11 xfce4-session xfdesktop 2->11         started        13 xfce4-session xfdesktop 2->13         started        15 3 other processes 2->15 signatures3 36 Sends malformed DNS queries 26->36 38 Uses dynamic DNS services 26->38 process4 process5 17 most-arm.elf 9->17         started        process6 19 most-arm.elf 17->19         started        signatures7 42 Sample tries to kill multiple processes (SIGKILL) 19->42 22 most-arm.elf 19->22         started        process8
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-04-01 13:48:23 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ziwypw3fe3kyyaffwtk5nt6vnh25f56bzqncy5wvtecxponhxh5q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/250401-q37n9azshw/
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/ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb

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:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Mirai_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Mirai botnet, and there variants.
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

sh 7bb8639f32cc58e1a82dcfb63b0fd6b6ecca89d25b496ce934e6b45da7e132e8

Mirai

elf ca2d87db6526d58c00a5b4d5d6cfd569f5d2f7c1cc1a2c76d5990577b9a7b9fb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3498144/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2824958/
  
Dropped by
SHA256 7bb8639f32cc58e1a82dcfb63b0fd6b6ecca89d25b496ce934e6b45da7e132e8
  
Dropped by
MD5 f7551b41af7ef5dc52a73cb42366c069

Comments