MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a
SHA3-384 hash: ac29c967dc23b3e5501b5bdfbace5579fd32679815b4e2c6c079b0c514c9fef52daf526be4b0c3b21d97de1b110f8a3b
SHA1 hash: 892adf81c84b6a3111e73ce0ff99805eeaecbc71
MD5 hash: 0329c23737f1a81b19ea37158f15c61e
humanhash: east-massachusetts-hot-nitrogen
File name:Mddos.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:592'080 bytes
First seen:2025-11-05 04:38:55 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:VfPIjJJeUy/OJBmHFq8Vwy172MHAp9v/G7uPe2h8pXkCDt:VYDeUy3FTP1yyAXvnVu
TLSH T1EFC43845F8809F61C6C529B6F74D42AC73074BB9D3EB720A9A145B3437EB96B0F3A601
telfhash t14341e079ff7b1aad57e4c1a4816ed0290efc30ee8b2824528e5c674e4d02dc2f05e823
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9907086-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Gathering data
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/f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Adware
File Type:
elf.32.le
First seen:
2025-11-05T02:17:00Z UTC
Last seen:
2025-11-05T04:21:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/0b4e3cfc-67c2-4b61-8ab6-d436f3cddb5f
Behavior Graph:
Download SVG
%3 guuid=6cee4f50-1a00-0000-bb81-33726c070000 pid=1900 /usr/bin/sudo guuid=3f429452-1a00-0000-bb81-337274070000 pid=1908 /tmp/sample.bin guuid=6cee4f50-1a00-0000-bb81-33726c070000 pid=1900->guuid=3f429452-1a00-0000-bb81-337274070000 pid=1908 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/9de8c260-31ed-4bc7-95a0-c5d6fc031cb4
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1808252
Signature
Connects to many ports of the same IP (likely port scanning)
Connects to many VNC servers (likely to brute force passwords)
Drops invisible ELF files
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Suricata IDS alerts for network traffic
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1808252 Sample: Mddos.arm7.elf Startdate: 05/11/2025 Architecture: LINUX Score: 96 59 64.124.28.220, 5900 ZAYO-6461US United States 2->59 61 178.67.139.128, 5900 ROSTELECOM-ASRU Russian Federation 2->61 63 100 other IPs or domains 2->63 67 Suricata IDS alerts for network traffic 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for submitted file 2->71 75 2 other signatures 2->75 9 Mddos.arm7.elf 2->9         started        11 dash rm 2->11         started        13 dash cat 2->13         started        15 9 other processes 2->15 signatures3 73 Connects to many VNC servers (likely to brute force passwords) 61->73 process4 process5 17 Mddos.arm7.elf 9->17         started        20 Mddos.arm7.elf 9->20         started        22 Mddos.arm7.elf 9->22         started        signatures6 65 Sample deletes itself 17->65 24 Mddos.arm7.elf sh 17->24         started        26 Mddos.arm7.elf sh 17->26         started        28 Mddos.arm7.elf .dbus-daemon 17->28         started        37 4 other processes 17->37 31 Mddos.arm7.elf 20->31         started        33 Mddos.arm7.elf 20->33         started        35 Mddos.arm7.elf 20->35         started        39 19 other processes 20->39 process7 signatures8 41 sh curl 24->41         started        45 sh wget 26->45         started        79 Found strings related to Crypto-Mining 28->79 81 Sample reads /proc/mounts (often used for finding a writable filesystem) 28->81 47 .dbus-daemon 28->47         started        49 .dbus-daemon 37->49         started        51 .dbus-daemon 37->51         started        53 .dbus-daemon 37->53         started        55 .dbus-daemon 37->55         started        process9 file10 57 /tmp/.dbus-daemon, ELF 41->57 dropped 77 Drops invisible ELF files 41->77 signatures11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-05 04:29:30 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7a4mf3egyrcnbgkwsneuriup6zcz3j5p5aqgqlvnqhsksxploa5a._file
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig antivm credential_access discovery miner
Link:
https://tria.ge/reports/251105-fbkqassmbk/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Reads CPU attributes
Reads process memory
Executes dropped EXE
Contacts a large (23697) amount of remote hosts
Creates a large amount of network flows
XMRig Miner payload
Xmrig family
xmrig
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9907086-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e286b853-9109-41e4-a788-1f9bcc6dc8a3
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/f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a

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_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_da28eb8b
Create hunting rule
Author:Elastic Security
Rule name:malwareelf55503
Create hunting rule
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 f838c2ec86c444d09956934948a28ff6459da7afe820682ead81e4a95deb703a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3696730/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3696735/

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