MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344
SHA3-384 hash: e454333b34c09a1cfa160863d43c43df1d2b68925f37a584eb7ba0e6c1117d5c3931b142e83665759c670133510587c5
SHA1 hash: 3b174cf76b7811b7b2c24da40e28316d1f05cb88
MD5 hash: fa5079560680d958f7e307ebca10c8a0
humanhash: bulldog-muppet-nitrogen-missouri
File name:efjepc
Download: download sample
Signature Mirai
Create hunting rule
File size:160'512 bytes
First seen:2025-04-02 02:27:03 UTC
Last seen:2025-04-02 11:46:02 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:c66HXljKDEZSwtlzHJTRxn1mxCxgrygr4za+Vh400oibrv4vASnTOFqx/SZNhPE+:gH8DeJP9txnBxOBcbh4zocNSTanpELi
TLSH T122F33A06B30C0E47D1632EF03E3B27E1D3EFA99121A4F644695FAA8A9171D371586ECD
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
130
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30423.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135957-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-10012200-0
Create hunting rule

Unix.Trojan.Mirai-10012201-0
Create hunting rule

Unix.Trojan.Mirai-10012671-0
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67eca29bcfd0a37f830bf268linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Deleting a recently created file
Removes directories
Connection attempt
Creating a file
DNS request
Runs as daemon
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Deletes a system binary file
Substitutes an application name
Kills critical processes
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
bash explorer lolbin remote
Link:
https://www.filescan.io/uploads/67eca083f274bf2d8e2d74c2/reports/c6b90d3d-b87c-4f0a-b3bf-c390f1485ed2/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d82f8890-6fb2-4bb6-a91a-2096f336eac1
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1654200
Signature
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1654200 Sample: efjepc.elf Startdate: 02/04/2025 Architecture: LINUX Score: 64 24 raw.awaken-network.net 141.98.10.142, 2211, 51628, 52996 HOSTBALTICLT Lithuania 2->24 28 Multi AV Scanner detection for submitted file 2->28 8 efjepc.elf 2->8         started        10 systemd journalctl 2->10         started        12 systemd systemd-journald 2->12         started        14 systemd journalctl 2->14         started        signatures3 process4 process5 16 efjepc.elf 8->16         started        signatures6 26 Sample deletes itself 16->26 19 efjepc.elf 16->19         started        22 efjepc.elf 16->22         started        process7 signatures8 30 Manipulation of devices in /dev 19->30 32 Deletes system log files 19->32 34 Sample tries to kill multiple processes (SIGKILL) 22->34
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-04-02 02:36:13 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=wtnhyxytzzmnh2y5j5wymhlqvkpfno2ahid6o5aympxf3wfzmnca._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet linux
Link:
https://tria.ge/reports/250402-cxgzraztey/
Malware Config
C2 Extraction:
141.98.10.142
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135957-0
YARA:
n/a
Link:
https://app.threat.zone/submission/b343cc3c-11f7-4d18-9a25-bd89b6c94abb
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/b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344

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:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 b4da7c5f13ce58d3eb1d4f6d861d70aa9e56bb403a07e7741863ee5dd8b96344

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3477312/
  
Delivery method
Distributed via web download

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