MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3
SHA3-384 hash: e0263a8eba7d2c205bd9f5e0d5316588fb849d824764d846834e395de25475922bd2f950897c024e49bb551a028e5b0b
SHA1 hash: 7c50edea5425f9ee7743ac6300899fc625c7674f
MD5 hash: a11ea4cf494190924a509e1b5c95bea8
humanhash: avocado-butter-illinois-oranges
File name:morte.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:42'348 bytes
First seen:2025-06-26 22:46:30 UTC
Last seen:2025-06-27 00:25:20 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:68RCx6RT6QA7C1rsxbCxgnO818xaFwPpzBsOH73FkBY2NOh9sj5WG:68cx6MQMOxaqPpz6xBY2NOgh
TLSH T15F13F10DEA20FF8B8D7E58B741DA13C81C8C72C677A70B0E44538D4CD566657F88A8B6
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
File size (compressed) :42'348 bytes
File size (de-compressed) :113'860 bytes
Format:linux/mipsel
Unpacked file: 66b70564d5fd2e9fc6c5c663440846e0b1d28750318af10d36ee14fa56db45de

Intelligence

File Origin
# of uploads :
3
# of downloads :
108
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.21745.18081.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=685dcdcf32ed47a3a8d7aae6linux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes access rights for a file
Sends data to a server
Opens a port
DNS request
Connection attempt
Changes access rights for a written file
Receives data from a server
Runs as daemon
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/685dce0345e80b29f8a07501/reports/91556574-ae09-475e-8f31-15bcb9f49d7d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fd588d3d-8880-46e7-b8c2-3d48a3823df3
Behavior Graph:
Download SVG
%3 guuid=9953ed94-1d00-0000-f50a-e9acf80b0000 pid=3064 /usr/bin/sudo guuid=319ffb96-1d00-0000-f50a-e9acff0b0000 pid=3071 /tmp/sample.bin guuid=9953ed94-1d00-0000-f50a-e9acf80b0000 pid=3064->guuid=319ffb96-1d00-0000-f50a-e9acff0b0000 pid=3071 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/03efffd1-1d75-4017-8b0e-d501552225f8
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1723863
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1723863 Sample: morte.mpsl.elf Startdate: 27/06/2025 Architecture: LINUX Score: 60 20 izumisv1.cc 196.251.116.241, 12121 xneeloZA Seychelles 2->20 22 daisy.ubuntu.com 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Sample is packed with UPX 2->28 8 morte.mpsl.elf 2->8         started        signatures3 process4 process5 10 morte.mpsl.elf 8->10         started        12 morte.mpsl.elf 8->12         started        14 morte.mpsl.elf 8->14         started        process6 16 morte.mpsl.elf 10->16         started        18 morte.mpsl.elf 10->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-06-26 22:47:25 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fd23hnkubknbbvjevl3qk2u5iooz272kw5nkeggrduwl4klcodbq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250626-2qp48awrz8/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5512d873-915d-4960-a62a-03132301d11b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 28f5b3b5540a9a10d524aaf7056a9d439d9d7f4ab75aa218d11d2cbe296270c3

(this sample)

Mirai

elf 66b70564d5fd2e9fc6c5c663440846e0b1d28750318af10d36ee14fa56db45de

  
URLhaus
https://urlhaus.abuse.ch/url/3570531/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3570540/
  
Dropping
SHA256 66b70564d5fd2e9fc6c5c663440846e0b1d28750318af10d36ee14fa56db45de
  
Dropping
MD5 5a357d550c526c63adb5c9a1aca5f57e

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