MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af
SHA3-384 hash: c80af6046f532d73fff2e4d00c7b5bb617c3d59448ae04a27b0c72374b59f6db86687b1c164378b10d038042b8ce3553
SHA1 hash: 15491f963d30983ac4e4564e40fd37b5dc5da00f
MD5 hash: c56be4ec7371a441b09102f2ac848f52
humanhash: yellow-michigan-ink-carbon
File name:arm
Download: download sample
Signature Mirai
Create hunting rule
File size:50'504 bytes
First seen:2026-04-11 06:15:00 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:hRgKgXaN9BfA1q9aFohHOPkooyF1XqHkb5SmJJ3WZ1EUsL0rcnR76XDs3UozO:wKc0Bl9a+tOPkooyf5SmJYfsv1zO
TLSH T1AB3301B135A6ACA095BC2936B9306153B1A19E15B3CD2E43514CCEF7ABC3E14BBB8D41
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) :50'504 bytes
File size (de-compressed) :136'064 bytes
Format:linux/arm
Unpacked file: 7b9c0ff385f650793c5370e36b6177293e06f51415348823527bfb444dedfad9

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e69ae213-00bb-46bf-add0-e39d76d2cd63/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Gathering data
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
4
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-11T03:22:00Z UTC
Last seen:
2026-04-11T16:39:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/afa2cfe1-d544-4c64-82ae-862bbdced784
Behavior Graph:
Download SVG
%3 guuid=0078b955-1a00-0000-f4e8-c40aff080000 pid=2303 /usr/bin/sudo guuid=5427ce57-1a00-0000-f4e8-c40a04090000 pid=2308 /tmp/sample.bin guuid=0078b955-1a00-0000-f4e8-c40aff080000 pid=2303->guuid=5427ce57-1a00-0000-f4e8-c40a04090000 pid=2308 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d2c6389e-feb5-4ee9-a3ff-498b4a1b7b6a
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1896798
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1896798 Sample: arm.elf Startdate: 11/04/2026 Architecture: LINUX Score: 52 17 weifangs.serveftp.com 87.121.84.23, 3778, 53632, 53634 SKATTV-ASBG Bulgaria 2->17 19 Multi AV Scanner detection for submitted file 2->19 21 Sample is packed with UPX 2->21 7 arm.elf 2->7         started        signatures3 process4 process5 9 arm.elf 7->9         started        11 arm.elf 7->11         started        13 arm.elf 7->13         started        15 arm.elf 7->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-04-11 06:15:46 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvagk23jzutij2ylwd3bbisvzb52mr4djkwvxqapb6fujxggmwxq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260411-gz8byahz2k/
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/b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af

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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 b540656b69cd2684eb0bb0f610a255c87ba647834aad5bc00f0f8b44dcc665af

(this sample)

Mirai

elf 7b9c0ff385f650793c5370e36b6177293e06f51415348823527bfb444dedfad9

  
URLhaus
https://urlhaus.abuse.ch/url/3815979/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 7b9c0ff385f650793c5370e36b6177293e06f51415348823527bfb444dedfad9
  
Dropping
MD5 d2ec10cbd60d45e6e01b844c59e1a282

Comments