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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 520d038edd43b0a64b4631bd29b2fd81545b2ae3b3bf079080a7655af223eb15. 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 3 File information Comments

SHA256 hash: 520d038edd43b0a64b4631bd29b2fd81545b2ae3b3bf079080a7655af223eb15
SHA3-384 hash: efefa2f3c242d8766a4fa1ad6ca1079a51b540c246359b0e0105018eb69a00c669bf856a816ac294393f4422062ff240
SHA1 hash: 4ec7b3c3f095d7ba2e7e302b718eb37ba760477e
MD5 hash: 616e82307772a0ad3cf0854dd04a1537
humanhash: harry-iowa-high-earth
File name:debug
Download: download sample
Signature Mirai
File size:68'128 bytes
First seen:2025-12-31 18:58:16 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:mVJfAB9izVUTE+TkZqAavlBUUkfOy10Y1AqRzSC+C9xenouy8Gyw:mVJ4B9QVUTE+aqAavzbkft0O1mCDj+oH
TLSH T13063020BF3EF9D4CF670687213CE35D628B0399FB9401E37A5C710966B63AD9D608992
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 gafgyt mirai UPX
File size (compressed) :68'128 bytes
File size (de-compressed) :170'692 bytes
Format:linux/i386
Unpacked file: ea81d620742f42d4fcddc562219da76867363c3aafa5f490819b27f067f49113

Intelligence


File Origin
# of uploads :
1
# of downloads :
50
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-31T16:06:00Z UTC
Last seen:
2026-01-02T08:37:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r
Status:
terminated
Behavior Graph:
%3 guuid=880579b7-1700-0000-3ef2-8d712b0c0000 pid=3115 /usr/bin/sudo guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121 /tmp/sample.bin dns net send-data write-config write-file guuid=880579b7-1700-0000-3ef2-8d712b0c0000 pid=3115->guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 54d92a3b-1447-55af-b534-047898c60c8d 1.1.1.1:53 guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->54d92a3b-1447-55af-b534-047898c60c8d send: 36B guuid=e66815f6-1700-0000-3ef2-8d718d0c0000 pid=3213 /usr/bin/dash guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->guuid=e66815f6-1700-0000-3ef2-8d718d0c0000 pid=3213 execve guuid=fc5437f9-1700-0000-3ef2-8d71900c0000 pid=3216 /usr/bin/dash guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->guuid=fc5437f9-1700-0000-3ef2-8d71900c0000 pid=3216 execve guuid=6deca9fb-1700-0000-3ef2-8d71980c0000 pid=3224 /tmp/sample.bin guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->guuid=6deca9fb-1700-0000-3ef2-8d71980c0000 pid=3224 clone guuid=9e57e627-1900-0000-3ef2-8d713e0f0000 pid=3902 /tmp/sample.bin guuid=18d82ab9-1700-0000-3ef2-8d71310c0000 pid=3121->guuid=9e57e627-1900-0000-3ef2-8d713e0f0000 pid=3902 clone guuid=353041f6-1700-0000-3ef2-8d718e0c0000 pid=3214 /usr/bin/systemctl guuid=e66815f6-1700-0000-3ef2-8d718d0c0000 pid=3213->guuid=353041f6-1700-0000-3ef2-8d718e0c0000 pid=3214 execve guuid=2cc561f9-1700-0000-3ef2-8d71920c0000 pid=3218 /usr/bin/systemctl guuid=fc5437f9-1700-0000-3ef2-8d71900c0000 pid=3216->guuid=2cc561f9-1700-0000-3ef2-8d71920c0000 pid=3218 execve guuid=11c9ca65-1800-0000-3ef2-8d71820d0000 pid=3458 /tmp/sample.bin guuid=6deca9fb-1700-0000-3ef2-8d71980c0000 pid=3224->guuid=11c9ca65-1800-0000-3ef2-8d71820d0000 pid=3458 clone guuid=c104cf65-1800-0000-3ef2-8d71830d0000 pid=3459 /tmp/sample.bin guuid=6deca9fb-1700-0000-3ef2-8d71980c0000 pid=3224->guuid=c104cf65-1800-0000-3ef2-8d71830d0000 pid=3459 clone
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Gafgyt
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1842796 Sample: debug.elf Startdate: 31/12/2025 Architecture: LINUX Score: 68 31 169.254.169.254, 80 USDOSUS Reserved 2->31 33 daisy.ubuntu.com 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Gafgyt 2->39 41 Sample is packed with UPX 2->41 8 debug.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 file5 29 /usr/local/bin/infinitd, ELF 8->29 dropped 13 debug.elf sh 8->13         started        15 debug.elf sh 8->15         started        17 debug.elf 8->17         started        19 debug.elf 8->19         started        process6 process7 21 sh systemctl 13->21         started        23 sh systemctl 15->23         started        25 debug.elf 17->25         started        27 debug.elf 17->27         started       
Threat name:
Linux.Backdoor.Gafgyt
Status:
Malicious
First seen:
2025-12-31 18:59:12 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux persistence privilege_escalation upx
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
UPX packed file
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
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
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
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 520d038edd43b0a64b4631bd29b2fd81545b2ae3b3bf079080a7655af223eb15

(this sample)

  
Delivery method
Distributed via web download

Comments