MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e
SHA3-384 hash: a7656406b8bf979e9b379ecbe061546411f78eaa71d55a4be103abec4d25dad77d0e8cc3baaf4be7436eebc3062f65ba
SHA1 hash: 11acce3d752253c7f28ce554e57774bd4b68ad9a
MD5 hash: 88e86244f881b243816858fed47bec07
humanhash: monkey-happy-oranges-hydrogen
File name:morte.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:207'196 bytes
First seen:2025-07-07 06:28:29 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:5od4s2D/TZ71yHYKh7nsoweo6Ob5bBgXo1L8:y4s2DrZ71y9bZXOZBgY14
TLSH T11A14970E6E228F7DF7B8873447B78E24976D23D627E1D685D1ACD2001E2025E645FFA8
telfhash t16c4181180a7817f0a63a5c5a099dff37d6a330db7e162c378e11e45bab69b835c11c0d
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
13
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
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Unix.Trojan.Mirai-7135916-0
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Unix.Dropper.Mirai-7136016-0
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Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-8041698-0
Create hunting rule

Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686b693b900df8e7f868170clinux22vpnfull_triage
Tags:
n/a
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
155
Number of processes launched:
8
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7a325fba-792b-4da5-a8f9-c528c99d81a4
Behavior Graph:
Download SVG
%3 guuid=d4bee6ff-1800-0000-7377-35726d0b0000 pid=2925 /usr/bin/sudo guuid=44029002-1900-0000-7377-3572740b0000 pid=2932 /tmp/sample.bin guuid=d4bee6ff-1800-0000-7377-35726d0b0000 pid=2925->guuid=44029002-1900-0000-7377-3572740b0000 pid=2932 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fe647e0a-161a-4be0-b079-267c44e8bb81
Result
Threat name:
Gafgyt, Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1729846
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Gafgyt
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1729846 Sample: morte.mips.elf Startdate: 07/07/2025 Architecture: LINUX Score: 100 78 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->78 80 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->80 82 daisy.ubuntu.com 2->82 84 Antivirus detection for dropped file 2->84 86 Antivirus / Scanner detection for submitted sample 2->86 88 Multi AV Scanner detection for submitted file 2->88 90 3 other signatures 2->90 11 morte.mips.elf 2->11         started        14 gvfsd-fuse fusermount 2->14         started        16 systemd dbus-daemon 2->16         started        18 10 other processes 2->18 signatures3 process4 signatures5 100 Found strings related to Crypto-Mining 11->100 20 morte.mips.elf 11->20         started        102 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->102 22 sh xkbcomp 18->22         started        24 sh xkbcomp 18->24         started        process6 process7 26 morte.mips.elf 20->26         started        file8 76 /etc/init.d/sysd, POSIX 26->76 dropped 104 Sample tries to set files in /etc globally writable 26->104 106 Drops files in suspicious directories 26->106 108 Sample tries to persist itself using System V runlevels 26->108 30 morte.mips.elf sh 26->30         started        32 morte.mips.elf 26->32         started        34 morte.mips.elf 26->34         started        36 6 other processes 26->36 signatures9 process10 process11 38 sh cp 30->38         started        42 morte.mips.elf 32->42         started        44 morte.mips.elf 32->44         started        46 morte.mips.elf 34->46         started        48 morte.mips.elf 34->48         started        50 morte.mips.elf 36->50         started        52 morte.mips.elf 36->52         started        54 morte.mips.elf 36->54         started        56 9 other processes 36->56 file12 74 /usr/bin/.sh, ELF 38->74 dropped 92 Drops invisible ELF files 38->92 94 Drops files in suspicious directories 38->94 96 Sample tries to kill multiple processes (SIGKILL) 42->96 98 Sample deletes itself 42->98 58 morte.mips.elf 42->58         started        60 morte.mips.elf 46->60         started        62 morte.mips.elf 50->62         started        64 morte.mips.elf 52->64         started        66 morte.mips.elf 54->66         started        68 morte.mips.elf 56->68         started        70 morte.mips.elf 56->70         started        72 morte.mips.elf 56->72         started        signatures13 process14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-07 06:29:09 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wh33cz5zjnzidtvflhiejk4ryu5ienfw2gbk4yizzl3gefbxjjha._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access defense_evasion discovery persistence
Link:
https://tria.ge/reports/250707-g8yh4ayyav/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7100807-0
YARA:
n/a
Link:
https://app.threat.zone/submission/0446876d-3c06-49a5-b1f9-71cdf853b0f1
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/b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e

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
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Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
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Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 b1f7b167b94b7281cea559d044ab91c53a8234b6d182ae6119caf66214374a4e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3578021/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3578026/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments