MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2
SHA3-384 hash: 67bdd3acc68504def4933046f52169e7d853965c8433eeabbf065355b0e684ce3a85f20768a3819c1002e1bfcfa56f46
SHA1 hash: f45838cae0ec65fb348372a08550ed4a7fbaf3f6
MD5 hash: edc5ee1ad19d1b70b009e363b0cfd2ba
humanhash: solar-kansas-pluto-grey
File name:nz.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:49'984 bytes
First seen:2026-07-25 00:24:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:DGnf/JuqrRh67F6eSfvmx+zNSMwMFIPzL:DG/MqS7F6lvmxwNQtPn
TLSH T13F23F166A22B2430D7604DB19374C7D5833A87BFF2F5255932090FA850B647A74BBACF
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) :49'984 bytes
File size (de-compressed) :128'492 bytes
Format:linux/arm
Unpacked file: a4f131af7ac03fead82f8a9f7049391b363dcabe6429b6ac6d5136965e192fed

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/6d793e40-8c0d-4086-9cd8-11a756e14c80/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a640281b82e46a567986076/reports/abcd0f6a-65ae-430a-b174-f41cdd5d2ced/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
48
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c73bbf70-0d2e-41b0-85db-50591e7a81bb
Behavior Graph:
Download SVG
%3 guuid=586ba1ab-1a00-0000-75ab-46ec0a0c0000 pid=3082 /usr/bin/sudo guuid=cde055b0-1a00-0000-75ab-46ec0f0c0000 pid=3087 /tmp/sample.bin guuid=586ba1ab-1a00-0000-75ab-46ec0a0c0000 pid=3082->guuid=cde055b0-1a00-0000-75ab-46ec0f0c0000 pid=3087 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d5daee6d-a538-4278-9645-4132ad83efc6
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1947871
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1947871 Sample: nz.arm.elf Startdate: 25/07/2026 Architecture: LINUX Score: 96 22 jhdfytf745.ddns.net 2->22 24 169.254.169.254, 80 USDOS-USDepartmentofStateUS ZZ 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 36 3 other signatures 2->36 8 nz.arm.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 nz.arm.elf 8->12         started        14 nz.arm.elf 8->14         started        16 nz.arm.elf 8->16         started        process6 18 nz.arm.elf 12->18         started        20 nz.arm.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-25 00:25:47 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k7lsgz37odpnx3b2lel3t43b3rru737druj3fpj44462kgooahba._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260725-aqzvwawxet/
Please note that we are no longer able to provide a coverage score for Virus Total.

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 57d723677f70dedbec3a5917b9f361dc634fefe38d13b2bd3ce73da519ce01c2

(this sample)

Mirai

elf a4f131af7ac03fead82f8a9f7049391b363dcabe6429b6ac6d5136965e192fed

  
URLhaus
https://urlhaus.abuse.ch/url/3887328/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 a4f131af7ac03fead82f8a9f7049391b363dcabe6429b6ac6d5136965e192fed
  
Dropping
MD5 adde27e08b3c94ef9a9416872ba4888c

Comments