MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26dd8881c99e820c135beea109e0b1b1e01f953f371ff4ed3fb3e2efa31773c5. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 26dd8881c99e820c135beea109e0b1b1e01f953f371ff4ed3fb3e2efa31773c5
SHA3-384 hash: acfb6bfc404d81ec394a5cb32b50196ec99801e5edc0f76c01e98f836edbef7bc2eee1396e31994a7e7fb66f7018b5a6
SHA1 hash: 28e6abc55fae3c5b5110bab7bab5749a181b3c74
MD5 hash: 9abe03f997fff6fc77a39af35e3d6887
humanhash: comet-video-indigo-march
File name:arm7
Download: download sample
Signature Mirai
File size:113'404 bytes
First seen:2024-11-03 19:26:36 UTC
Last seen:2024-11-07 22:17:43 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:HD8Vt4CcYSmeH9a68Q8SqUINcJkSDXiMi6aPzZ6X:HDgt4tdda68Q8SqFcJVXih686X
TLSH T1CEB31946A9819F11D5D731FAFB9E414933136BB8E3FA7102DD20AF6027CA99B0F76502
telfhash t1ffd02be9a7af50c067e29410d58ee4154afdb5de5b06286054870b0dc1951a1f227e19
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
15
# of downloads :
5'953
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Mounts file systems
Creating a file
Receives data from a server
DNS request
Changes access rights for a written file
Launching a process
Changes the time when the file was created, accessed, or modified
Opens a port
Sends data to a server
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug chacha expand gcc lolbin remote
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
45
Number of processes launched:
10
Processes remaning?
true
Remote TCP ports scanned:
23
Behaviour
Anti-VM
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
80 / 100
Signature
Antivirus / Scanner detection for submitted sample
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1548085 Sample: arm7.elf Startdate: 03/11/2024 Architecture: LINUX Score: 80 48 67.154.95.152 XO-AS15US United States 2->48 50 63.243.114.76 WINDSTREAMUS United States 2->50 52 100 other IPs or domains 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 Yara detected Mirai 2->58 60 Uses known network protocols on non-standard ports 2->60 9 arm7.elf 2->9         started        signatures3 process4 file5 46 /root/.bashrc, ASCII 9->46 dropped 68 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 9->68 13 arm7.elf sh 9->13         started        15 arm7.elf 9->15         started        17 arm7.elf 9->17         started        19 2 other processes 9->19 signatures6 process7 process8 21 sh crontab 13->21         started        25 sh 13->25         started        27 arm7.elf 15->27         started        29 arm7.elf 15->29         started        31 arm7.elf 17->31         started        33 arm7.elf 17->33         started        35 sh 19->35         started        file9 44 /var/spool/cron/crontabs/tmp.MUpjxw, ASCII 21->44 dropped 64 Sample tries to persist itself using cron 21->64 66 Executes the "crontab" command typically for achieving persistence 21->66 37 sh crontab 25->37         started        40 arm7.elf 27->40         started        42 arm7.elf 31->42         started        signatures10 process11 signatures12 62 Executes the "crontab" command typically for achieving persistence 37->62
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2024-11-03 19:27:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:botnet defense_evasion discovery execution persistence privilege_escalatio privilege_escalation
Behaviour
Command and Scripting Interpreter: Unix Shell
Enumerates kernel/hardware configuration
Reads runtime system information
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies systemd
File and Directory Permissions Modification
Renames itself
Unexpected DNS network traffic destination
Contacts a large (296370) amount of remote hosts
Creates a large amount of network flows
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_8299c877
Author:Elastic Security
Rule name:unixredflags3
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 26dd8881c99e820c135beea109e0b1b1e01f953f371ff4ed3fb3e2efa31773c5

(this sample)

  
Delivery method
Distributed via web download

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