MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7
SHA3-384 hash: 5a1d81e6556a0128618180316950b20747ae493e7536681b3713f0ae2ad9c2b2f5097f8128c330771329ea182fac9120
SHA1 hash: bbd6dbce5f7950462129185ee9f4bc495512536b
MD5 hash: 4967406bcf8b312457f415b5a612367c
humanhash: india-beer-bacon-texas
File name:pmips
Download: download sample
Signature Mirai
Create hunting rule
File size:93'352 bytes
First seen:2025-08-23 00:59:58 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:KloXJI3TfgvWahoqXXgLAHw3AGh6zeglH08kYf:KkJIDovHhxwLH3AGka89f
TLSH T12E93B81E6E219FADF769C73047B78A21A75833C627E1D685E25CD6002F6034D642FFA8
telfhash t17a118e184a7413f497305c896beeef77e1a130df4b266d238e00e8ad6bad9425e00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 87e7a1fb8243d3b12a570ee2812aa313b408ff252ecf92184eecf0f02f9ae09f
File size (compressed) :36'120 bytes
File size (de-compressed) :94'228 bytes
Format:linux/mips
Packed file: 87e7a1fb8243d3b12a570ee2812aa313b408ff252ecf92184eecf0f02f9ae09f

Intelligence

File Origin
# of uploads :
1
# of downloads :
53
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sends data to a server
Receives data from a server
Connection attempt
Kills processes
Runs as daemon
Substitutes an application name
Deleting of the original file
Gathering data
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-08-22T22:21:00Z UTC
Last seen:
2025-08-22T22:21:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2329734f-a90d-4b1d-8d4d-f613bdc71109
Behavior Graph:
Download SVG
%3 guuid=7a95233d-1900-0000-f8bf-43c80b090000 pid=2315 /usr/bin/sudo guuid=09110440-1900-0000-f8bf-43c812090000 pid=2322 /tmp/sample.bin guuid=7a95233d-1900-0000-f8bf-43c80b090000 pid=2315->guuid=09110440-1900-0000-f8bf-43c812090000 pid=2322 execve guuid=cd175c41-1900-0000-f8bf-43c815090000 pid=2325 /usr/bin/dash guuid=09110440-1900-0000-f8bf-43c812090000 pid=2322->guuid=cd175c41-1900-0000-f8bf-43c815090000 pid=2325 clone guuid=3db37541-1900-0000-f8bf-43c816090000 pid=2326 /usr/bin/dash guuid=09110440-1900-0000-f8bf-43c812090000 pid=2322->guuid=3db37541-1900-0000-f8bf-43c816090000 pid=2326 clone
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ac482a78-c362-4642-b602-14a74569d747
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1763329
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1763329 Sample: pmips.elf Startdate: 23/08/2025 Architecture: LINUX Score: 68 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 45.138.16.158, 18129, 43008 SPECTRAIPSpectraIPBVNL Netherlands 2->21 23 3 other IPs or domains 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected Mirai 2->29 8 pmips.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 signatures5 31 Sample deletes itself 8->31 13 pmips.elf 8->13         started        process6 process7 15 pmips.elf 13->15         started        17 pmips.elf 13->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-23 01:04:34 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=umjhfsfuzakabpa77k7s2x6skxbp4echq3codwgcp5ucanjqzltq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai defense_evasion discovery
Link:
https://tria.ge/reports/250823-bgwmjafk5v/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Deletes itself
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9858729-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e43407f6-a5a2-443c-8cbd-0cb806218e92
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/a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7

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_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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 87e7a1fb8243d3b12a570ee2812aa313b408ff252ecf92184eecf0f02f9ae09f

Mirai

elf a31272c8b4c81400bc1ffabf2d5fd255c2fe104786c4e1d8c27f68203530cae7

(this sample)

  
Dropped by
SHA256 87e7a1fb8243d3b12a570ee2812aa313b408ff252ecf92184eecf0f02f9ae09f
  
URLhaus
https://urlhaus.abuse.ch/url/3609518/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 b12dd45f80b2e53d88daed27c196a54f

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