MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675. 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: 6


Intelligence 6 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675
SHA3-384 hash: c1969d8d6896947442f31c4243da9adddf7c8b95bb87b0f86fd2058fda9a73a7eb01fbfba6f8b7a1526348005ab7bf89
SHA1 hash: a711c3c783eefb4e26df3d0e003f6316ab7179ba
MD5 hash: 38cce8556c0596e5105ebc18d39525c5
humanhash: massachusetts-social-massachusetts-wisconsin
File name:7233474
Download: download sample
Signature Mirai
Create hunting rule
File size:2'368'640 bytes
First seen:2026-02-09 13:49:19 UTC
Last seen:2026-02-09 14:43:09 UTC
File type: elf
MIME type:application/x-executable
ssdeep 24576:hn8LCAfF9+kz8Uu16OOKqoZAJUNs/ILFhB/XbOGmCJjkMVbb7OaCqfttc8mXiwKa:hnCCAfFl8pnqmAJUNsgBh74Hmth8hS
TLSH T1ECB56D03B6D32C7DC4D6DF70974BC3BAAB30BC604615283F7AD8D6341A66A949D29F21
telfhash t10821f30de03e0dbd6ea5c168f8252684d50dca36b8a19b25ff65c3c0855841d7189f5e
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 331e0594ad32ae744a256b1e3b0c24b37ab86d127773a3f95418a5cf6b929f58
File size (compressed) :622'916 bytes
File size (de-compressed) :2'368'640 bytes
Format:linux/amd64
Packed file: 331e0594ad32ae744a256b1e3b0c24b37ab86d127773a3f95418a5cf6b929f58

Intelligence

File Origin
# of uploads :
2
# of downloads :
29
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
156
Number of processes launched:
17
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/4ea87481-268f-4ace-96c2-2113a908051f
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.mine
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1866092
Signature
Connects to many ports of the same IP (likely port scanning)
Detected Mirai
Detected Stratum mining protocol
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Tries to load the MSR kernel module used for reading/writing to CPUs model specific register
Uses known network protocols on non-standard ports
Writes to CPU model specific registers (MSR) (e.g. miners improve performance by disabling HW prefetcher)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1866092 Sample: 7233474.elf Startdate: 09/02/2026 Architecture: LINUX Score: 88 92 pool.novoline.top 88.156.30.96, 20736, 2137, 36722 VECTRANET-ASAlZwyciestwa25381-525GdyniaPolandPL Poland 2->92 94 text.ipv4.myip.wtf 2->94 96 9 other IPs or domains 2->96 100 Suricata IDS alerts for network traffic 2->100 102 Detected Mirai 2->102 104 Multi AV Scanner detection for submitted file 2->104 108 2 other signatures 2->108 15 7233474.elf 2->15         started        17 dash rm 2->17         started        19 dash rm 2->19         started        21 python3.8 dpkg 2->21         started        signatures3 106 Detected Stratum mining protocol 92->106 process4 process5 23 7233474.elf 15->23         started        file6 86 /tmp/nwatchdog/d, ELF 23->86 dropped 88 /tmp/nwatchdog/3882, ELF 23->88 dropped 90 /tmp/nwatchdog/0Y82npg, ELF 23->90 dropped 26 7233474.elf sh 23->26         started        28 7233474.elf sh 23->28         started        30 7233474.elf sh 23->30         started        32 4 other processes 23->32 process7 process8 34 sh useradd 26->34         started        38 sh sudo 28->38         started        40 sh sudo 30->40         started        42 sh usermod 32->42         started        44 sh sudo 32->44         started        46 sh sudo 32->46         started        48 2 other processes 32->48 file9 84 /home/moderator/.bashrc, ASCII 34->84 dropped 110 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 34->110 50 useradd pam_tally2 34->50         started        52 useradd 34->52         started        62 6 other processes 34->62 54 sudo d 38->54         started        56 sudo 3882 40->56         started        64 6 other processes 42->64 58 sudo true 44->58         started        60 sudo true 46->60         started        66 2 other processes 48->66 signatures10 process11 process12 68 d sh 54->68         started        70 3882 sh 56->70         started        72 3882 56->72         started        process13 74 sh 0Y82npg 68->74         started        process14 76 0Y82npg 74->76         started        signatures15 112 Writes to CPU model specific registers (MSR) (e.g. miners improve performance by disabling HW prefetcher) 76->112 79 0Y82npg sh 76->79         started        process16 process17 81 sh modprobe 79->81         started        signatures18 98 Tries to load the MSR kernel module used for reading/writing to CPUs model specific register 81->98
Score:
9%
Verdict:
Benign
File Type:
ELF
Link:
https://malprob.io/report/f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6zwnee4jytvhvyps3vr5nhdrlifsnx55x2q4meayhqlzj7lbwz2q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
antivm credential_access defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/260209-q5d5qaex3a/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Creates .desktop file
Reads CPU attributes
Modifies Bash startup script
UPX packed file
Abuse Elevation Control Mechanism: Sudo and Sudo Caching
Adds a user to the system
Checks hardware identifiers (DMI)
Creates/modifies environment variables
Enumerates running processes
Reads hardware information
Executes dropped EXE
OS Credential Dumping
Unexpected DNS network traffic destination
Modifies password files for system users/ groups
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f66cd21389c4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Rooter
Create hunting rule
Author:Seth Hardy
Description:Rooter
Rule name:RooterStrings
Create hunting rule
Author:Seth Hardy
Description:Rooter Identifying Strings
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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.

Mirai

sh 02135d7778c96e309879b8d1767ea6a7e0c19dd39b04f8239fc2187813cfc9cb

Mirai

elf 331e0594ad32ae744a256b1e3b0c24b37ab86d127773a3f95418a5cf6b929f58

Mirai

elf f66cd21389c4ea7ae1f2dd63d69c715a0b26dfbdbea1c610183c1794fd61b675

(this sample)

  
Dropped by
SHA256 331e0594ad32ae744a256b1e3b0c24b37ab86d127773a3f95418a5cf6b929f58
  
URLhaus
https://urlhaus.abuse.ch/url/3775108/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 b310b897b846a1bf93bde4f66994e847

Comments