MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a. 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: 14


Intelligence 14 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a
SHA3-384 hash: c6fd064e3c1a6b1dcb735bf388f49a820ade57610ac81067763cbf4cb08dafa6adeba5eae9f42d8ea2a591265decdece
SHA1 hash: 41636c100970c6247bfcdbb77706bc57092d3fc8
MD5 hash: c8a4c82cf20d8084ae8c033cec1a89ec
humanhash: lactose-tennessee-football-carbon
File name:weje64
Download: download sample
Signature Mirai
Create hunting rule
File size:166'888 bytes
First seen:2025-03-07 14:36:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:EGI4HqR83prk/BES/NDkanLiXGjs6MyWqlRRnbaBfl7b1rv4aw1RPPS:EGI4HqR8Zrk/BESrLZMyWi2BPwvPPS
TLSH T17BF34B07B5C188FDC4D9C1B45BAFB53ADD71F45E1238B26B2794EA222E4DE305B2D610
telfhash t12f51deb02ede3958a1f7e36b724ae56ef8b519501ce131f4deb76ad4ce063880d72442
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67cb05a1c668b65489bfd42clinux22vpnfull_triage
Tags:
gafgyt mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Runs as daemon
DNS request
Creating a file
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Deletes a system binary file
Substitutes an application name
Deleting of the original file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
bash lolbin remote
Link:
https://www.filescan.io/uploads/67cb049fe95d0f9029e5b10b/reports/742b91ac-474b-4d7c-9005-9298782ea514/overview
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/879029ae-07bc-4b52-9f32-191a054529dc
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1631874
Signature
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to kill multiple processes (SIGKILL)
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1631874 Sample: weje64.elf Startdate: 07/03/2025 Architecture: LINUX Score: 92 30 157.178.211.32, 37215, 45549 WRHARPERUS United States 2->30 32 24.41.20.38, 37215, 45549 WINDSTREAMUS United States 2->32 34 98 other IPs or domains 2->34 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected Gafgyt 2->44 46 2 other signatures 2->46 8 weje64.elf 2->8         started        10 xfce4-panel wrapper-2.0 2->10         started        12 systemd rsyslogd 2->12         started        14 48 other processes 2->14 signatures3 process4 process5 16 weje64.elf 8->16         started        19 wrapper-2.0 xfpm-power-backlight-helper 10->19         started        signatures6 36 Sample tries to kill multiple processes (SIGKILL) 16->36 38 Sample deletes itself 16->38 21 weje64.elf 16->21         started        24 weje64.elf 16->24         started        26 weje64.elf 16->26         started        28 2 other processes 16->28 process7 signatures8 48 Sample tries to kill multiple processes (SIGKILL) 21->48
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-03-07 14:37:12 UTC
File Type:
ELF64 Little (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shjmgqpwjcpzjx5aahxzcupfn6tpqmy3egdthkfw6qks6nuf7yva._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet defense_evasion discovery linux
Link:
https://tria.ge/reports/250307-ry7zws1yd1/
Behaviour
Changes its process name
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Contacts a large (37874) amount of remote hosts
Creates a large amount of network flows
Malware Config
C2 Extraction:
raw.awaken-network.net
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Dropper.Mirai-7540662-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_d0c57a2e Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_520deeb8 Linux_Trojan_Mirai_01e4a728 Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/c2ec4904-f82c-43ba-998e-1418892313e3
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_01e4a728
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_520deeb8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Create hunting rule
Author:Elastic Security
Rule name:MatchByteSequence
Create hunting rule
Author:Generated by ChatGPT
Description:Rule to match specific byte sequence: 89 C8 C1 E8 08 31 D1 31 C8
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 91d2c341f6489f94dfa001ef9151e56fa6f8331b218733a8b6f4152f3685fe2a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3430687/
  
Delivery method
Distributed via web download

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_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments